PCA9501 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

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PCA9501

8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins

NXP Semiconductors. 

NXP Semiconductors

PCA9501

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

20

IOH

(µA)

−40

VDD = 2.5 V

2.7 V

3.0 V

3.3 V

3.6 V

−100

002aad307

20

IOH

(µA)

−20

VDD = 2.5 V

2.7 V

3.0 V

3.3 V

3.6 V

−60

−100

002aad308

−160

0

1.2

a. Tamb = −40 °C

2.4

3.6

VOH (V)

20

IOH

(µA)

−20

VDD = 2.5 V

2.7 V

3.0 V

3.3 V

3.6 V

−60

−140

0

1.2

b. Tamb = 25 °C

002aad309

2.4

3.6

VOH (V)

−100

c. Tamb = 85 °C

Fig 23. VOH versus IOH

−140

0

1.2

2.4

3.6

VOH (V)

Remark: 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/Os 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.

PCA9501_4

Product data sheet

Rev. 04 — 10 February 2009

© NXP B.V. 2009. All rights reserved.

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