PDAs and Handheld Equipment



Data Sheets
Part Number Description Key Advantages
MAX7359 2-Wire Interfaced Low-EMI Key Switch Controller/GPO

Low-Voltage, Low-EMI, and Low-Supply Current Key-Switch Controller Monitors Up to 64 Keys Without External Components 
MAX7322 I²C Port Expander with 4 Push-Pull Outputs and 4 Inputs

Low Operating Supply Voltage I²C Port Expander with 4 Push-Pull Outputs and 4 Input Ports 
MAX7326 I²C Port Expander with 12 Push-Pull Outputs and Four Inputs

Best Suited for Monitoring Transient Changes,
Generating Control Signals, and Driving LEDs 
MAX7324 I²C Port Expander with Eight Push-Pull Outputs and Eight Inputs

Low Operating Supply Voltage, I²C Port Expander with 8 Push-Pull and 8 Input Ports 
MAX7325 I²C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os

Low Operating Supply Voltage I²C Port Expander with 8 Push-Pull and 8 Configurable Open-Drain I/Os 
MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection

 
MAX7314 18-Port GPIO with LED Intensity Control, Interrupt, and Hot-Insertion Protection

 
MAX7316 10-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection

Space-Saving 10-Port and 18-Port I/O Expanders with Active-Low IRQ Drive LEDs with Integrated 240-Step PWM Brightness Control and 2-Phase Blink 
MAX7315 8-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection

 
MAX7313 16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection

8- and 16-Port I/O Expanders with IRQ and Low Standby Current Ideal for Portable Applications 
MAX7312 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection

 
MAX7311 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection

2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and hot-Insertion Protection for SMBus-Compatible and I²C-Compatible Applications 
MAX7310 2-Wire-Interfaced 8-Bit I/O Port Expander with Reset

2-Wire-Interfaced 8-Bit I/O Port Expander with Reset can Sink Up to 30mA per Port for SMBus™-Compatible and I²C-Compatible Applications 
MAX7300 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander

 
MAX7301 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander

 



Key Specifications:

I/O Port Expanders
Part Number Interface I/O Inputs Outputs Reset Input Interr.Out Over Voltage Protect. Drive Current
(mA)
VSUPPLY
(V)
VSUPPLY
(V)
Budgetary
Price
min max See Notes
MAX7324 
Serial - I2C Compatible
Serial 2-Wire 400kbit
- 8 8 Yes Yes 6V 25 1.71 5.5 $1.74 @1k
MAX7322 
Serial - I2C Compatible
Serial 2-Wire 400kbit
- 4 4 Yes Yes 6V 25 1.71 5.5 $1.63 @1k
MAX7325 
Serial - I2C Compatible
Serial 2-Wire 400kbit
16 - - Yes Yes 6V 25 1.71 5.5 $0.98 @1k
MAX7326 
Serial - I2C Compatible
Serial 2-Wire 400kbit
- 4 12 Yes Yes 6V 25 1.71 5.5 $1.74 @1k
MAX7317  Serial SPI 26Mbit 10 - - - - 7V 10 2.25 3.6 $1.29 @1k
MAX7312  Serial 2-Wire 400kbit 16 - - - Yes 5.5V 40 2 5.5 $1.81 @1k
MAX7313  Serial 2-Wire 400kbit 16 - 1 - Yes 5.5V 50 2 3.6 $1.57 @1k
MAX7314  Serial 2-Wire 400kbit 16 1 1 Yes Yes 5.5V 50 2 3.6 $2.08 @1k
MAX7315  Serial 2-Wire 400kbit 8 - 1 - Yes 5.5V 50 2 3.6 $1.12 @1k
MAX7316  Serial 2-Wire 400kbit 8 1 1 Yes Yes 5.5V 50 2 3.6 $1.52 @1k
MAX7311  Serial 2-Wire 400kbit 16 - - - Yes 5.5V 40 2 5.5 $2.20 @1k
MAX7310  Serial 2-Wire 400kbit 8 - - Yes - 5.5V 20 2.3 5.5 $1.63 @1k
MAX7300  Serial 2-Wire 400kbit 20 or 28 - - - Yes - 10 2.5 5.5 $2.67 @1k
MAX7301  Serial SPI 26Mbit 20 or 28 - - - Yes - 10 2.5 5.5 $2.67 @1k
See All I/O Port Expanders (35)


Keyswitch Controllers
Part Number Interface Keys ISUPPLY
(µA)
ISHUTDN
(µA)
Interr. Out Key Scan I2C Slave IDs GPIO VSUPPLY
(V)
Budgetary
Price
max typ typ See Notes
MAX7359  Serial 2-Wire 400kbit 64 25 1 Yes 4 6 GPO 1.62 to 3.6 $2.54 @1k
See All Keyswitch Controllers (5)