Cypress Semiconductor CY8C9540A-24PVXI, 40-Channel I/O Expander 100kHz, I2C, 48-Pin SSOP

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

Serial I/O Expanders, Cypress Semiconductor

Multi-port I/O expanders from Cypress Semiconductor with on-board user accessible EEPROM and several PWM outputs.

I2C interface logic electrically compatible with SMBus
Up to 20 (CY8C9520A), 40 (CY8C9540A), or 60 (CY8C9560A) I/O data pins independently configurable as inputs, outputs,Bi-directional input/outputs, or PWM outputs
4/8/16 PWM sources with 8-bit resolution
Extendable soft addressing algorithm allowing flexible I2C address configuration
Internal 3-/11-/27-Kbyte EEPROM
User default storage, I/O port settings in internal EEPROM
Optional EEPROM write disable (WD) input
Interrupt output indicates input pin level changes and pulse width modulator (PWM) state changes
Internal power on reset (POR)
Internal configurable watchdog timer

Specifications
Attribute Value
Number of I/O Channels 40
Interface I2C
Number of Pins 48
Package Type SSOP
Clock Frequency 100kHz
Mounting Type Surface Mount
Maximum Supply Voltage 5.25 V
Minimum Supply Voltage 3 V
21 In stock for delivery within 5 working day(s)
Price (ex. GST) Each
$ 13.68
(exc. GST)
$ 15.73
(inc. GST)
units
Per unit
1 - 9
$13.68
10 - 49
$12.88
50 - 99
$11.68
100 - 499
$11.23
500 +
$9.70
Packaging Options:
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