9536 查看數據表（PDF） - Philips Electronics

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9536

4-bit I²C and SMBus I/O port

Philips Electronics 

Philips Semiconductors

4-bit I2C and SMBus I/O port

Objective data sheet

PCA9536

PIN CONFIGURATION

I/O0 1

I/O1 2

I/O2 3

GND 4

8 VDD

7 SDA

6 SCL

5 I/O3

SW02190

Figure 1. Pin configuration

PIN DESCRIPTION

PIN

NUMBER

SYMBOL

1, 2, 3, 5

I/O0–3

4

VSS

6

SCL

7

SDA

8

VDD

FUNCTION

I/O0 to I/O3

Supply ground

Serial clock line

Serial data line

Supply voltage

BLOCK DIAGRAM

PCA9536

SCL

SDA

INPUT

FILTER

VDD

VSS

POWER-ON

RESET

I/O0

I/O1

I2C/SMBUS

4-BIT

INPUT/

OUTPUT

CONTROL

PORTS

I/O2

WRITE pulse

READ pulse

I/O3

NOTE: ALL I/Os ARE SET TO INPUTS AT RESET

SW02191

Figure 2. Block diagram

2004 Aug 20

3

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