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Part: MAX7300AGL
Category:
Interface and Interconnect
Description: MAX7300 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/o Expander
Company: Maxim Integrated Products
Datasheet: Download MAX7300AGL datasheet File size : 569 kB
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Datasheet text preview:
19-2413; Rev 1; 2/03
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander
General Description
The MAX7300 compact, serial-interfaced, I/O expansion peripheral provides microprocessors with up to 28 ports. Each port is individually user configurable to either a logic input or logic output. Each port can be configured as either a push-pull logic output capable of sinking 10mA and sourcing 4.5mA, or a Schmitt logic input with optional internal pullup. Seven ports feature configurable transition detection logic, which generates an interrupt upon change of port logic level. The MAX7300 is controlled through an I2CTM-compatible 2-wire serial interface, and uses four-level logic to allow 16 I2C addresses from only two select pins. The MAX7300AAX and MAX7300AGL have 28 ports and are available in 36-pin SSOP and 40-pin QFN packages, respectively. The MAX7300AAI and MAX7300ANI have 20 ports and are available in 28-pin SSOP and 28pin DIP packages, respectively.
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Features
o 400kbps I C-Compatible Serial Interface o 2.5V to 5.5V Operation o -40°C to +125°C Temperature Range o 20 or 28 I/O Ports, Each Configurable as Push-Pull Logic Output Schmitt Logic Input Schmitt Logic Input with Internal Pullup o 11µA (max) Shutdown Current o Logic Transition Detection for Seven I/O Ports
MAX7300
Ordering Information
PART MAX7300ANI MAX7300AAI MAX7300AAX MAX7300AGL TEMP RANGE -40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C PIN-PACKAGE 28 DIP 28 SSOP 36 SSOP 40 QFN
Applications
White Goods Automotive Industrial Controllers System Monitoring
Typical Operating Circuit Pin Configurations
TOP VIEW
ISET 1 GND 2 GND 3 AD0 4 P12 5 P13 6 P14 7 P15 8 P16 9 P17 10 P18 11 P19 12 P20 13 P21 14 28 V+ 27 AD1 26 SCL 25 SDA 24 P31
35 AD1 4 AD0 33 SDA 34 SCL 31 P31 29 P30 27 P29 25 P28 24 P27 23 P26 22 P25 21 P24 39k 47nF 3 GND 2 GND 1 ISET 3V 36 V+ P4 32 P5 30 P6 28 P7 26 P8 5 P9 7 P10 9 P11 11 I/O 4 I/O 5 I/O 6 I/O 7 I/O 8 I/O 9 I/O 10 I/O 11 I/O 12 I/O 13 I/O 14 I/O 15 I/O 16 I/O 17 I/O 18 I/O 19 I/O 20 I/O 21 I/O 22 I/O 23 I/O 24 I/O 25 I/O 26 I/O 27 I/O 28 I/O 29 I/O 30 I/O 31
MAX7300AAX
MAX7300
23 P30 22 P29 21 P28 20 P27 19 P26 18 P25 17 P24 16 P23 15 P22
DATA CLOCK
P12 6 P13 8 P14 10 P15 12 P16 13 P17 14 P18 15 P19 16 P20 17 P21 18 P22 19 P23 20
SSOP/DIP
Pin Configurations continued at end of data sheet.
I 2C is a trademark of Philips Corp.
________________________________________________________________ Maxim Integrated Products
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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.
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander MAX7300
ABSOLUTE MAXIMUM RATINGS
Voltage (with respect to GND) V+ ...........-0.3V to +6V SCL, SDA, AD0, AD1......-0.3V to +6V All Other Pins......-0.3V to (V+ + 0.3V) P4P31 Current .......±30mA GND Current ............800mA Continuous Power Dissipation (TA = +70°C) 28-Pin PDIP (derate 20.8mW/°C above +70°C).........1667mW 28-Pin SSOP (derate 9.5mW/°C above +70°C) ..762mW 36-Pin SSOP (derate 11.8mW/°C above +70°C) .........941mW 40-Pin QFN (derate 23.25mW/°C aboveTA = +70°C)..1860mW Operating Temperature Range (TMIN to TMAX) .....-40°C to +125°C Junction Temperature ......+150°C Storage Temperature Range .....-65°C to +150°C Lead Temperature (soldering, 10s) .........+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, V+ = 2.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER Operating Supply Voltage Shutdown Supply Current SYMBOL V+ IS H D N All digital inputs at V+ or GND TA = +25°C TA = -40°C to +85°C TMIN to TMAX All ports programmed TA = +25°C as outputs high, no TA = -40°C to +85°C load, all other inputs at V+ or GND TMIN to TMAX All ports programmed TA = +25°C as outputs low, no TA = -40°C to +85°C load, all other inputs at V+ or GND TMIN to TMAX All ports programmed TA = +25°C as inputs without pullup, ports, and all TA = -40°C to +85°C other inputs at V+ or TMIN to TMAX GND 180 CONDITIONS MIN 2.5 5.5 TYP MAX 5.5 8 10 11 240 260 280 170 210 230 240 110 135 140 145 µA µA µA µA UNITS V
Operating Supply Current
IGPOH
Operating Supply Current
IGPOL
Operating Supply Current
IGPI
INPUTS AND OUTPUTS Logic High Input Voltage Port Inputs Logic Low Input Voltage Port Inputs Input Leakage Current GPIO Input Internal Pullup to V+ Hysteresis Voltage GPIO Inputs VIH VIL IIH, IIL IPU VI GPIO inputs without pullup, VPORT = V+ to GND V+ = 2.5V V+ = 5.5V -100 12 80 ±1 19 120 0.3 0.7 x V+ 0.3 x V+ +100 30 180 V V nA µA V
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2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander
ELECTRICAL CHARACTERISTICS (continued)
(Typical Operating Circuit, V+ = 2.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS GPIO outputs, ISOURCE = 2mA, TA = -40°C to +85°C GPIO outputs, ISOURCE = 1mA, TA = TMIN to TMAX (Note 2) VPORT = 0.6V Port configured output low, shorted to V+ MIN V+ 0.7 V V+ 0.7 2 2.75 0.7 x V+ 0.3 x V+ -50 (Note 2) VOL ISINK = 6mA +50 10 0.4 10 11 18 20 mA mA V V nA pF V TYP MAX UNITS
MAX7300
Output High Voltage
VOH
Port Sink Current Output Short-Circuit Current Input High-Voltage SDA, SCL, AD0, AD1 Input Low-Voltage SDA, SCL, AD0, AD1 Input Leakage Current SDA, SCL Input Capacitance Output Low-Voltage SDA
IOL IO L S C VIH VIL IIH, IIL
TIMING CHARACTERISTICS (Figure 2)
(V+ = 2.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER Serial Clock Frequency Bus Free Time Between a STOP and a START Condition Hold Time (Repeated) START Condition Repeated START Condition Setup Time STOP Condition Setup Time Data Hold Time Data Setup Time SCL Clock Low Period SCL Clock High Period Rise Time of Both SDA and SCL Signals, Receiving Fall Time of Both SDA and SCL Signals, Receiving Fall Time of SDA Transmitting Pulse Width of Spike Suppressed Capacitive Load for Each Bus Line SYMBOL fSCL tBUF tHD, STA tSU, STA tSU, STO tHD, DAT tSU, DAT tL O W tHIGH tR tF tF,TX tSP Cb (Notes 2, 4) (Notes 2, 4) (Notes 2, 5) (Notes 2, 6) (Note 2) 0 (Note 3) 1.3 0.6 0.6 0.6 15 100 1.3 0.7 20 + 0.1Cb 20 + 0.1Cb 20 + 0.1Cb 300 300 250 50 400 900 CONDITIONS MIN TYP MAX 400 UNITS kHz µs µs µs µs ns ns µs µs ns ns ns ns pF
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