PCA9500BS View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

PCA9500BS

8-bit I2C and SMBus I/O port with 2-kbit EEPROM

Philips Electronics 

Philips Semiconductors

8-bit I2C and SMBus I/O port with 2-kbit EEPROM

Product data sheet

PCA9500

20

IOH (µA)

0

Tamb = 85 °C

SW02352

–20

2.5 V

–40

2.7 V

–60

3.0 V

3.3 V

3.6 V

–80

–100

–120

–140

0

0.4

0.8

1.2

1.6

2.0

VOH (V)

2.4

2.8

3.2

3.6

Figure 24. VOH versus IOH (Tamb = 85 °C)

NOTE:

Rapid fall off in VOH at current inception is due to a diode that provides 5 V overvoltage protection for the GPIO I/O pins. When the GPIO I/O are

being used as inputs, the internal current source VOH should be evaluated to determine if external pull-up resistors are required to provide

sufficient VIH threshold noise margin.

2004 Sep 30

17

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