PCA9501 Datasheet PDF | NXP Semiconductors

NXP Semiconductors PCA9501

The PCA9501 is an 8-bit I/O expander with an on-board 2-kbit EEPROM. The I/O expandable eight quasi-bidirectional data pins can be independently assigned as inputs or outputs to monitor board level status or activate indicator devices such as LEDs. The system master writes to the I/O conﬁguration bits in the same way as for the PCF8574.

Part No.	PCA9501
Datasheet	PCA9501 Download
Manufacturer	NXP Semiconductors
Description	8-bit I2C and SMBus I/O port
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FEATURES

I 8 general purpose input/output expander/collector I Replacement for PCF8574 with integrated 2-kbit EEPROM I Internal 256 × 8 EEPROM I Self timed write cycle (5 ms typical) I 16 byte page write operation I I2C-bus and SMBus interface logic I Internal power-on reset I Noise ﬁlter on SCL/SDA inputs I Active LOW interrupt output I 6 address pins allowing up to 64 devices on the I2C-bus/SMBus I No glitch on power-up I Supports hot insertion I Power-up with all channels conﬁgured as inputs NXP Semiconductors PCA9501 8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM I Low standby current I Operating power supply voltage range of 2.5 V to 3.6 V I 5 V tolerant inputs/outputs I 0 Hz to 400 kHz clock frequency I ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101 I Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA I Packages offered: SO20, TSSOP20, HVQFN20 3.

APPLICATIONS

I Board version tracking a...