Datasheet > CAT9954AWI-T2

CAT9954AWI-T2

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
CATALYST		/
页数	文件大小	规格书
16页	267K
描述
8-bit I2C and SMBus I/O Port with Interrupt

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CAT9954AWI-T2 数据手册

CAT9554, CAT9554A

INT: Interrupt Output

The open-drain interrupt output is activated when one of

the port pins configured as an input changes state

(differs from the corresponding input port register bit

state).Theinterruptisdeactivatedwhentheinputreturns

to its previous state or the input port register is read.

Changing an I/O from an output to an input may cause

a false interrupt if the state of the pin does not match the

contents of the input port register.

Data from

Shift Register

Output Port

Configuration

Data from

Shift Register

Write

Configuration Pulse

I/O to I/O

Write Pulse

Output Port

Input Port

LATCH

Read Pulse

To INT

Data from

Shift Register

Polarity

Write

Polarity

Inversion Register

Figure 4. Simplified Schematic of I/O to I/O

Characteristics subject to change without notice

Doc. No. 25088, Rev. B

1...4 5 678 9 10...16

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