PCA9534D 查看數據表（PDF） - Philips Electronics

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PCA9534D

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

Philips Electronics 

Philips Semiconductors

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

Product data sheet

PCA9534

PIN CONFIGURATION — SO, TSSOP

PIN CONFIGURATION — HVQFN

A0 1

A1 2

A2 3

I/O0 4

I/O1 5

I/O2 6

I/O3 7

VSS 8

16 VDD

15 SDA

14 SCL

13 INT

12 I/O7

11 I/O6

10 I/O5

9 I/O4

su01410

Figure 1. Pin configuration — SO, TSSOP

PIN DESCRIPTION

PIN NUMBER

SO, TSSOP

HVQFN

1

15

2

16

3

1

4–7

2–5

8

6

9–12

7–10

13

11

14

12

15

13

16

14

SYMBOL

A0

A1

A2

I/O0 to I/O3

VSS

I/O4 to I/O7

INT

SCL

SDA

VDD

A1 A0 VDD SDA

A2 1

I/O0 2

I/O1 3

I/O2 4

12 SCL

11 INT

10 I/O7

9 I/O6

I/O3 VSS I/O4 I/O5

TOP VIEW

su01670

Figure 2. Pin Configuration — HVQFN

FUNCTION

Address input 0

Address input 1

Address input 2

I/O0 to I/O3

Supply ground

I/O4 to I/O7

Interrupt output (open drain)

Serial clock line

Serial data line

Supply voltage

BLOCK DIAGRAM

A0

A1

A2

SCL

SDA

VDD

VSS

PCA9534

INPUT

FILTER

POWER-ON

RESET

I2C/SMBUS

CONTROL

8-BIT

WRITE pulse

INPUT/

OUTPUT

PORTS

READ pulse

I/O0

I/O1

I/O2

I/O3

I/O4

I/O5

I/O6

I/O7

VCC

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

Figure 3. Block diagram

INT

LP

FILTER

SU01783

2004 Sep 30

3

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