pca9558pw NXP Semiconductors, pca9558pw Datasheet - Page 3

• Manufacturer Part Number: pca9558pw
• Description: 8-bit I2c And Smbus I/o Port With 5-bit Multiplexed/1-bit Latched 6-bit I2c Eeprom And 2 K Bit Eeprom
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PIN DESCRIPTION
2003 Jun 27
8-bit I
latched 6-bit I
PIN NUMBER
11-18
20-24
5-9
10
19
25
26
27
28
1
2
3
4
2
C and SMBus I/O port with 5-bit multiplexed/1-bit
NON_MUXED_OUT
MUX_OUT_LOW
MUX_OUT E-A
I/O_OUT_LOW
MUX_SELECT
MUX_IN A-E
2
SYMBOL
C EEPROM DIP switch and 2-kbit EEPROM
I/O[0-7]
GND
SCL
SDA
V
WP
A0
DD
Serial I
Serial bi-directional I
Active-LOW control forces all GPIO to logic 0 outputs
A0 Address
External inputs to multiplexer
Ground
General purpose Input/Output 0 through 7 (open drain outputs)
Active-LOW Select of MUX_IN inputs or EEPROM contents for MUX_OUT outputs
Open drain multiplexed outputs
Open drain outputs from non-volatile memory
Active-LOW control forces all MUX outputs to logic 0
Active-HIGH EEPROM write protect
Power supply : +3.0 to +3.6 V
2
C-bus clock
2
C-bus data
3
FUNCTION
PCA9558
Product data