PCA9538 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

PCA9538

8-bit I2C and SMBus low power I/O port with interrupt and reset

Philips Electronics 

Philips Semiconductors

8-bit I2C and SMBus low power I/O port

with interrupt and reset

Product data sheet

PCA9538

START

SCL

ACK OR READ CYCLE

SDA

30%

RESET

50%

tREC

I/Ox

50%

tRESET

50%

tW

Figure 14. Definition of RESET timing

tRESET

50%

I/O configured as inputs

SW02340

70 %

SCL

2

1

0

A

P

30 %

SDA

tPS

tPH

INPUT

tIV

50 %

tIR

INT

SW02329

Figure 15. Expanded view of Read input port register

70 %

SCL

2

1

0

A

P

30 %

2004 Oct 05

SDA

tPV

OUTPUT

50 %

SW02330

Figure 16. Expanded view of Write to output port register

12

Share Link: