19-2751; Rev 0; 1/03
+3.3V/+5V, 8-Channel, Cascadable Relay Drivers
with Serial/Parallel Interface
General Description
FeaturesThe MAX4820/MAX4821 8-channel relay drivers offerbuilt-in kickback protection and drive +3.3V/+5V non-o8 Independent Output Channelslatching or dual-coil-latching relays. These devices areoBuilt-In Inductive Kickback Protectionespecially useful when driving +3V relays. Each inde-pendent open-drain output features a 2Ωon-resistanceoDrive +3V and +5V Relays
and is guaranteed to sink 70mA (min) of load current.oGuaranteed 70mA (min) Coil Drive CurrentBoth devices consume less than 50µA (max) quiescentcurrent and have 1µA output off-leakage current.
oSETFunction to Turn On All OutputsThe MAX4820 features an SPI™-/QSPI™-/MICROWIRE™-Simultaneouslycompatible serial interface. Input data is shifted into an 8-oRESETFunction to Turn Off All Outputsbit shift register and latched to the outputs when CSSimultaneouslytransitions from low to high. Each data bit in the shift reg-ister corresponds to a specific output, allowing indepen-oSPI-/QSPI-/MICROWIRE-Compatible Serialdent control of all outputs.
Interface (MAX4820)The MAX4821 features a 4-bit (A0, A1, A2, LVL) paral-oSerial Digital Output for Daisy Chaininglel-input interface. The first three bits (A0, A1, A2) deter-(MAX4820)mine the output address, and the fourth bit (LVL)determines whether the selected output is switched onoParallel Interface (MAX4821)
or off. Data is latched to the outputs when CStransi-oLow 50µA (max) Quiescent Supply Currenttions from low to high.
oSpace-Saving 20-Pin Thin QFN Package
Both devices feature separate set and reset functionsthat allow the user to turn on or turn off all outputs simul-Ordering Informationtaneously with a single control line. Built-in hysteresis(Schmidt trigger) on all digital inputs allows this devicePARTTEMP RANGEPIN-PACKAGEto be used with slow rising and falling signals, such asMAX4820ETP*-40°C to +85°C20 Thin QFN-EPthose from optocouplers or RC power-up initializationcircuits. The MAX4820/MAX4821 are available in 20-pinMAX4820EUP*-40°C to +85°C20 TSSOPTSSOP and space-saving 20-pin thin QFN packages.
MAX4821ETP*-40°C to +85°C20 Thin QFN-EPApplicationsMAX4821EUP*-40°C to +85°C20 TSSOP*For maximum heat dissipation, packages have an exposed padCentral Office(EP) on the bottom. Solder exposed pad to GND.ATE
Pin Configurations
DSL, ADSL Line CardsIndustrial Equipment
TOP VIEW12DTCTTNECUUGSVOOPE1/T1 Redundancy0987621111RESET115OUT3CS214OUT4Pin Configurations continued at end of data sheet.DIN313COMTypical Application Circuits and Functional DiagramsMAX4820SCLK412OUT5appear at end of data sheet.
DOUT511OUT6678901.CD87.NNTTDGUUNGSPI and QSPI are trademarks of Motorola, Inc.
OOPMICROWIRE is a trademark of National Semiconductor Corp.
THIN QFN________________________________________________________________Maxim Integrated Products
1
For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX4820/MAX4821元器件交易网www.cecb2b.com
+3.3V/+5V, 8-Channel, Cascadable Relay Driverswith Serial/Parallel InterfaceMAX4820/MAX4821ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
VCC, COM..............................................................-0.3V to +6.0VOUT_........................................................-0.3V to (VCOM + 0.3V)CS, SCLK, DIN, SET, RESET, A0, A1, A2, LVL......-0.3V to +6.0VDOUT..........................................................-0.3V to (VCC + 0.3V)Continuous OUT_ Current (all outputs turned on)............150mAContinuous OUT_ Current (single output turned on)........300mA
Continuous Power Dissipation (TA= +70°C)20-Lead Thin QFN
(derate 16.9mW/°C above +70°C).................................1350mW
θJA.........................................................................59.3°C/W20-Pin TSSOP
(derate 21.7mW/°C above +70°C).................................1739mW
θJA............................................................................46°C/WOperating Temperature Range...........................-40°C to +85°CJunction Temperature......................................................+150°CStorage Temperature Range.............................-65°C to +150°CSoldering Temperature (10s)...........................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC= +3V to +5.5V, VCOM= VCC, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)PARAMETEROperating VoltageQuiescent CurrentThermal ShutdownPower-On ResetPower-On Reset HysteresisDIGITAL INPUTS (SCLK, DIN, CS, LVL, A0, A1, A2, RESET, SET)Input Logic High VoltageInput Logic Low VoltageInput Logic HysteresisInput Leakage CurrentsCIN Input CapacitanceDIGITAL OUTPUT (DOUT)DOUT Low VoltageDOUT High VoltageVOLVOHISINK = 6mAISOURCE = 0.5mAVCC = 2.7VVCC = 4.5VRONVOUT_ILEAKVFORWVCC = 2.7VVCC = 3.0V, IOUT_ = 70mAVOUT_ = VCC, all outputs offIOUT_ = 150mA (Note 2)-1VCC - 0.57070260.4+11.50.4VVVIHVILVHYSTILEAKCINInput voltages = 0 or 5.5V-1.0VCC = 3.3VVCC = 5VVCC = 3.3VVCC = 5V1500.015+1.02.02.40.60.8VVmVµApF0.8SYMBOLVCCIQIOUT_ = 0,logic inputs = 0 or VCCVCC = 3.6VVCC = 5.5VCONDITIONSMIN2.315201601.51402.2TYPMAX5.55070UNITSVµA°CVmVRELAY OUTPUT DRIVERS (OUT1–OUT8)OUT_ Drive CurrentOUT_ On-ResistanceOUT_ VoltageIOUT Off-Leakage CurrentKickback Diode Forward VoltagemAΩVµAV2_______________________________________________________________________________________
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3.3V/+5V, 8-Channel, Cascadable Relay Drivers
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ELECTRICAL CHARACTERISTICS (continued)
(VCC= +3V to +5.5V, VCOM= VCC, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSSPI TIMING (MAX4821)Turn-On Time (OUT_)tONFrom rising edge of CS, RL = 50Ω,CL = 50pF1.0µsTurn-Off Time (OUT_)tOFFFrom rising edge of CS, RL = 50Ω,CL = 50pF1.0µsSCLK FrequencyfSCLK02.1MHzCycle TimetCH + tCL480nsCS Fall to SCLK Rise SetuptCSS240nsCS Rise to SCLK HoldtCSH240nsSCLK High TimetCH190nsSCLK Low TimetCL190nsData Setup TimetDS100nsData Hold TimetDH0nsSCLK Fall to DOUT ValidtDO50% of SCLK to 10% of DOUT,CL = 50pF85120nsRise Time (DIN, SCLK, CS, SET,RESET)tSCR20% of VCC to 70% of VCC, CL = 50pF2µsFall Time (DIN, SCLK, CS,RESET, SET)tSCF20% of VCC to 70% of VCC, CL = 50pF2µsRESET Min Pulse WidthtRW70nsSET Min Pulse WidthtSW70nsPARALLEL TIMING (MAX4820)Turn-On TimetONFrom rising edge of CS, RL = 50Ω,CL = 50pF1µsTurn-Off TimetOFFFrom rising edge of CS, RL = 50Ω,CL = 50pF1µsLVL Setup TimetLS100nsLVL Hold TimetLH0nsAddress to CS Setup TimetAH100nsAddress to CS Hold TimetAS0nsRise Time (A2, A1, A0, LVL)tSCR20% of VCC to 70% of VCC, CL = 50pF2µsFall Time (A2, A1, A0, LVL)tSCF20% of VCC to 70% of VCC, CL = 50pF2µsRESET Pulse WidthtRW70nsSET Pulse WidthtSW70nsNote 1:Specifications at -40°C are guaranteed by design and not production tested.Note 2:After relay turn-off, inductive kickback may momentarily cause the voltage at OUT_ to exceed VCOM. This is considered partof normal operation and will not damage the device.
_______________________________________________________________________________________3
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+3.3V/+5V, 8-Channel, Cascadable Relay Driverswith Serial/Parallel InterfaceMAX4820/MAX4821Typical Operating Characteristics
(VCOM= VCC, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4820 toc01SUPPLY CURRENT vs. TEMPERATURE
VCC = 5V20SUPPLY CURRENT (µA)VCC = 5.5VMAX4820 toc02SUPPLY CURRENT vs. INPUT LOGIC VOLTAGE
900800SUPPLY CURRENT (µA)700600500400300200100
VCC = 3.3VVCC = 5VALL LOGIC INPUTS CONNECTEDMAX4820 toc0325
ALL LOGIC INPUTS = 020SUPPLY CURRENT (µA)251000
1515
1010
VCC = 3.3VVCC = 2.3V5
5
02.3
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
SUPPLY VOLTAGE (V)
0-40
-15
10
35
60
85
TEMPERATURE (°C)
00
1
2
3
4
5
INPUT LOGIC VOLTAGE (V)
ON-RESISTANCE vs. SUPPLY VOLTAGE
MAX4820 toc04ON-RESISTANCE vs. TEMPERATURE
IOUT_SINK = 70mAVCC = 2.3VVCC = 3.3VMAX4820 toc05POWER-ON RESET VOLTAGE
vs. TEMPERATURE
1.75POWER-ON RESET VOLTAGE (V)1.501.251.000.750.500.250
MAX4820 toc063.0
IOUT_SINK = 70mA2.52.0RON (Ω)1.51.00.502.3
2.7
3.1
3.5
3.9
4.3
4.7
5.1
3.02.52.0RON (Ω)1.51.0
2.00
VCC = 5.5V0.50
5.5
-40
-15
10
VCC = 5V356085-40-1510356085
SUPPLY VOLTAGE (V)TEMPERATURE (°C)TEMPERATURE (°C)
OUTPUT OFF-LEAKAGE CURRENT
vs. SUPPLY VOLTAGE
MAX4820 toc07OUTPUT OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4820 toc08OUT_ TURN-ON/TURN-OFF DELAY TIMES
vs. SUPPLY VOLTAGE
RL = 50ΩCL = 50pFMAX4820 toc091.00.9OUTPUT OFF-LEAKAGE (nA)0.80.70.60.50.40.30.20.102.3
2.7
3.1
3.5
3.9
4.3
4.7
5.1
2.001.75OUTPUT OFF-LEAKAGE (nA)1.501.251.000.750.500.25
VCC = 3.3V-40
-15
10
35
60
VCC = 5VVCC = 2.3VVCC = 5.5V8070tON/tOFF DELAY TIME (ns)6050
tOFF 403020
tON 2.3
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
5.5
0
85
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)SUPPLY VOLTAGE (V)
4_______________________________________________________________________________________
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3.3V/+5V, 8-Channel, Cascadable Relay Drivers
with Serial/Parallel Interface
Typical Operating Characteristics (continued)(VCOM= VCC, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.)
INPUT LOGIC THRESHOLDBACK EMF CLAMPING vs. SUPPLY VOLTAGE
WITH STANDARD 3V RELAY
2.50
MAX4820 toc1101cot 02.25284XAVCS)VM( D2.00L0
5V/div
OHSE1.75RHT C1.50IGOL 1.25TOUT_UP1V/div
NI1.000.750
OUT_ TURNS OFFV0.50
CC = 3.3V2.3
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
200µs/div
SUPPLY VOLTAGE (V)
Pin Description
PINMAX4820MAX4821THINNAMEFUNCTIONQFNTSSOPTHINQFNTSSOPReset Input. Drive RESET low to clear all latches and registers (all outputs1313RESETare turned off). RESET overrides all other inputs. If RESET and SET are pulledlow at the same time, then RESET takes precedence.Chip-Select Input.MAX4820: Drive CS low to select the device. When CS is low, data at DIN is2424CSclocked into the 8-bit shift register on SCLK’s rising edge. Drive CS from lowto high to latch the data to the registers and activate the appropriate relays.MAX4821: Drive CS low to select the device and set level on LVL. Drive CSfrom low to high to latch the address and level data to the output.35——DINSerial Data Input46——SCLKSerial Clock InputSerial Data Output. DOUT is the output of the 8-bit shift register. This output57——DOUTcan be used to daisy chain multiple MAX4820s. The data at DOUT appearssynchronous to SCLK’s falling edge.68——N.C.No Connection7979GNDGround810810OUT8Open-Drain Output 8. Connect OUT8 to the low side of a relay coil. Thisoutput is pulled to PGND when activated, but otherwise is high impedance.911911OUT7Open-Drain Output 7. Connect OUT7 to the low side of a relay coil. Thisoutput is pulled to PGND when activated, but otherwise is high impedance.10, 1612, 1810, 1612, 18PGNDPower Ground. PGND is a return for the output sinks. Connect PGND pinstogether and to GND.11131113OUT6Open-Drain Output 6. Connect OUT6 to the low side of a relay coil. Thisoutput is pulled to PGND when activated, but otherwise is high impedance._______________________________________________________________________________________5MAX4820/MAX4821元器件交易网www.cecb2b.com
+3.3V/+5V, 8-Channel, Cascadable Relay Driverswith Serial/Parallel InterfaceMAX4820/MAX4821Pin Description (continued)
PINMAX4820THINQFN12TSSOP14MAX4821THINQFN12TSSOP14OUT5Open-Drain Output 5. Connect OUT5 to the low side of a relay coil. Thisoutput is pulled to PGND when activated, but otherwise is high impedance.Common Free-Wheeling Diodes. Connect COM to VCC. COM can also beconnected to a separate supply that is higher than VCC. In that case, bypassVCC to GND with a 0.1µF capacitor.Open-Drain Output 4. Connect OUT4 to the low side of a relay coil. Thisoutput is pulled to PGND when activated, but otherwise is high impedance.Open-Drain Output 3. Connect OUT3 to the low side of a relay coil. Thisoutput is pulled to PGND when activated, but otherwise is high impedance.Open-Drain Output 2. Connect OUT2 to the low side of a relay coil. Thisoutput is pulled to PGND when activated, but otherwise is high impedance.Open-Drain Output 1. Connect OUT1 to the low side of a relay coil. Thisoutput is pulled to PGND when activated, but otherwise is high impedance.Input Supply Voltage. Bypass VCC to GND with a 0.1µF capacitor.Set Input. Drive SET low to set all latches and registers high (all outputs areturned on). SET overrides all parallel and serial control inputs. RESEToverrides SET under all conditions.Level Input. LVL determines whether the selected address is switched on oroff. A logic high on LVL switches on the addressed output. A logic low onLVL switches off the addressed output.Digital Address “0” Input. (See Table 2 for address mapping.)Digital Address “1” Input. (See Table 2 for address mapping.)Digital Address “2” Input. (See Table 2 for address mapping.)Exposed Pad. Solder exposed pad to GND.NAMEFUNCTION13151315COM14151718192016171920121415171819201617192012OUT4OUT3OUT2OUT1VCCSET——————————3456—5678—LVLA0A1A2EPDetailed DescriptionThe MAX4820/MAX4821 8-channel relay drivers offerbuilt-in kickback protection and drive +3.3V/+5V non-latching or dual-coil-latching relays. These devices areespecially useful when driving +3V relays. Each inde-pendent open-drain output features a 2Ωon-resistanceand is guaranteed to sink 70mA (min) load current. Bothdevices consume less than 50µA (max) quiescent cur-rent and feature 1µA (min) output off-leakage current.The MAX4820 features an SPI/QSPI/MICROWIRE-com-patible serial interface. Input data is shifted into an 8-bitshift register and latched to the outputs when CStransi-tions from low to high. Each data bit in the shift registercorresponds to a specific output, allowing independentcontrol of all outputs.6The MAX4821 features a 4-bit (A0, A1, A2, LVL) parallelinput interface. The three bits (A0, A1, A2) determinethe output address, and LVL determines whether theselected output is switched on or off. Data is latched tothe outputs when CStransitions from low to high.Both devices feature separate set and reset functionsthat allow the user to turn on or turn off all outputssimultaneously with a single control line. Built-in hys-teresis (Schmidt trigger) on all digital inputs allows thisdevice to be used with slow rising and falling signals,such as those from optocouplers or RC power-up ini-tialization circuits. The MAX4820/MAX4821 are avail-able in 20-pin TSSOP and space-saving 20-pin thinQFN packages._______________________________________________________________________________________元器件交易网www.cecb2b.com
3.3V/+5V, 8-Channel, Cascadable Relay Drivers
with Serial/Parallel Interface
CStCSWttCSSttCLtCHCSHCSOSCLKtDHtDSDIND7D6D1D0tDODOUTtON,tOFFOUT_Figure 1. 3-Wire Serial-Interface Timing Diagram (MAX4820 only)
Table 1. Serial Input Address Map (MAX4820 Only)DIND0D1D2D3D4D5D6D7OUT_OUT1OUT2OUT3OUT4OUT5OUT6OUT7OUT8Digital Interface
If the number of data bits entered while CSis low isSerial Interface (MAX4820)
greater or less than 8, the shift register contains onlyThe serial interface consists of an 8-bit shift registerthe last 8 data bits, regardless of when they wereand parallel latch controlled by SCLK and CS. Theentered.
input to the shift register is an 8-bit word. Each data bitcontrols one of the eight outputs, with the most signifi-The 3-wire serial interface is compatible with SPI, QSPI,cant bit (D7) corresponding to OUT8 and the least sig-and MICROWIRE standards. The latch that drives thenificant bit (D0) corresponding to OUT1 (see Table 1).analog switch is updated on the rising edge of CS,When CSis low (device is selected), data at DIN isregardless of SCLK’s state.
clocked into the shift register synchronously withParallel Interface (MAX4821)
SCLK’s rising edge. Driving CSfrom low to high latchesThe parallel interface consists of three address bitsthe data in the shift register to the parallel latch.
(A0, A1, A2) and one level selector bit (LVL). TheDOUT is the output of the shift register. Data appearsaddress bits determine which output is updated, andon DOUT synchronously with SCLK’s falling edge andthe level bit determines whether the addressed outputis identical to the data at DIN delayed by eight clockis switched on (LVL = high) or off (LVL = low). When CScycles. When shifting the input data, D7 is the first bit inis high, the address and level bits have no effect on theand out of the shift register.
state of the outputs. Driving CSfrom low to high latchesthe address and level data to the parallel register andWhile CSis low, the switches always remain in their pre-updates the state of the outputs. Address data enteredvious state. Drive CShigh after 8 bits of data have beenafter CSis pulled low is not reflected in the state of theshifted in to update the output state and inhibit furtheroutputs following the next low-to-high transition on CSdata from entering the shift register. When CSis high,(Figure 2).
transitions at DIN and SCLK have no effect on the out-put, and the first input bit (D7) is present at DOUT.
_______________________________________________________________________________________7
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+3.3V/+5V, 8-Channel, Cascadable Relay Driverswith Serial/Parallel InterfaceMAX4820/MAX4821Table 2. Parallel Interface Address Map(MAX4821 Only)CSA2LowLowtAStAHA1LowLowHighHighLowLowHighHighA0LowHighLowHighLowHighLowHighOUTPUTOUT1OUT2OUT3OUT4OUT5OUT6OUT7OUT8LowLowHighA_tLHtLSLVLHighHighHighApplications Information
tON,tOFFVOUTDaisy Chaining
The MAX4820 features a digital output, DOUT, that pro-vides a simple way to daisy chain multiple devices. Thisfeature allows the user to drive large banks of relaysusing only a single serial interface. To daisy chain multi-ple devices, connect all CSpins together, and connectthe DOUT of one device to the DIN of another device(see Figure 3). During operation, a stream of serial datais shifted through all the MAX4820s in series. When CSgoes high, all outputs update simultaneously.
The MAX4820 can also be used in a slave configurationthat allows the user to address individual devices.Connect all the DIN pins together, and use the CSinputto address one device at a time. Drive CSlow to selecta slave and input the data into the shift register. DriveCShigh to latch the data and turn on the appropriateoutputs. Typically, in this configuration only one slave isaddressed at a time.
VCC0.1µFVCC0.1µFFigure 2. Parallel Interface Timing Diagram (MAX4821 only)
SET/RESETFunctions
The MAX4820/MAX4821 feature set and reset inputs thatallow the user to simultaneously turn all outputs on or offusing a single control line. Drive SETlow to set all latch-es and registers to 1 and turn all outputs on. SETover-rides all serial/parallel control inputs. Drive RESETlow toclear all latches and registers and turn all outputs off.RESEToverrides all other inputs, including SET.
VCC0.1µFVCCDINDINDOUTDINVCCDOUTDINVCCDOUTMAX4820OUT1SCLKSCLKCSGNDOUT8PGNDSCLKSCLKCSMAX4820OUT1OUT8GNDPGNDSCLKSCLKCSMAX4820OUT1OUT8GNDPGNDCSFigure 3. Daisy-Chain Configuration8
_______________________________________________________________________________________
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3.3V/+5V, 8-Channel, Cascadable Relay Drivers
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Inductive Kickback Protection
flow back to the supply. Connect the common cathodeThe MAX4820/MAX4821 feature built-in inductive kick-(COM) of the internal protection diodes to VCC.
back protection to reduce the voltage spike on OUT_generated by a relay’s coil inductance when the outputCOM also can be connected to a higher voltage thanis suddenly switched off. Internal diodes connectedVfrom each output to COM allow the inductor current to
figuration, bypass COM to PGND with a 0.1µF capacitor.
CC (+6V max) for faster kickback recovery. In this con-Relay ManufacturersCOMPANYPHONEWEBSITECOMPANYPHONEWEBSITEAromat Corp.310-524-9862www.aromat.comNEC Electronics,CP Clare Corp.978-524-6700www.crouzet.comInc.800-366-9782www.nec-global.comCoto Techonology401-943-2686www.cotorelay.comOmronwww.oeiweb.omron.comDeustch Relays,Electronics, Inc.847-843-7900Inc.516-499-6000www.deutschrelays.comRockwell/Allen-414-382-2000www.ab.comFujitsuBradleyTakamisawa408-745-4900www.fujitsufta.comSiemensHella KG Hueck734-414-0970www.hella.comElectromechanical770-371-3000www.sec.siemens.comComponent, Inc.Teledyne Relays213-777-0077www.teledynerelays.comTypical Application Circuits0.1µFVCC0.1µFVCCRELAYRELAYVCCCOMCOIL 1VCCCOMCOIL 1RESETOUT1RESETOUT1SETSETA0CLKMAX4820VCCMAX4821VCCA1CSA2DINRELAYRELAYCOIL 8CSCOIL 8DOUTOUT8GNDLVLOUT8PGNDGNDPGND_______________________________________________________________________________________9
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+3.3V/+5V, 8-Channel, Cascadable Relay Driverswith Serial/Parallel InterfaceMAX4820/MAX4821Functional Diagrams
COMVCCMAX4820OUT1OUT2OUT3OUT4RESETSETDIN8-BITSHIFTREGISTERPARALLELREGISTEROUT5OUT6OUT7OUT8DOUTSCLKCSGNDPGNDCOMVCCMAX4821OUT1OUT2OUT3OUT4RESETSETLVLA2A1A0PARALLELLATCH4-TO-8DECODEROUT5OUT6OUT7OUT8CSGNDPGND10______________________________________________________________________________________元器件交易网www.cecb2b.com
3.3V/+5V, 8-Channel, Cascadable Relay Drivers
with Serial/Parallel Interface
Pin Configurations (continued)
TOP VIEW12DTCTTNECUUGSVOOP0987621111RESET115OUT3CS214OUT4LVL3MAX482113COMA0412OUT5A1511OUT66789012AD87NTTDGUUNOOGPTHIN QFNVCC120OUT1VCC120OUT1SET219OUT2SET219OUT2RESET318PGNDRESET318PGNDCS417OUT3CS417OUT3DIN5MAX482016OUT4LVL5MAX482116OUT4SCLK615COMA0615COMDOUT714OUT5A1714OUT5N.C.813OUT6A2813OUT6GND912PGNDGND912PGNDOUT81011OUT7OUT81011OUT7TSSOPTSSOPChip InformationTRANSISTOR COUNT: 1301PROCESS: BiCMOS
______________________________________________________________________________________11
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+3.3V/+5V, 8-Channel, Cascadable Relay Driverswith Serial/Parallel Interface21Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline informationgo to www.maxim-ic.com/packages.)
84XAM/0284XAM12SPE.NIHT NFQ L42PACKAGE OUTLINE12,16,20,24L QFN THIN, 4x4x0.8 mm21-0139APACKAGE OUTLINE12,16,20,24L QFN THIN, 4x4x0.8 mm21-0139A______________________________________________________________________________________元器件交易网www.cecb2b.com
3.3V/+5V, 8-Channel, Cascadable Relay Drivers
with Serial/Parallel Interface
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline informationgo to www.maxim-ic.com/packages.)
SPE.SDAP PXE,0.4 ,POSSTMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses areimplied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________13©2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX4820/MAX4821
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