PCA9554ADB datasheet(3/20 Pages) PHILIPS

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Philips Semiconductors

Product data sheet

PCA9554/PCA9554A

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

2004 Sep 30

PIN CONFIGURATION — 16-pin DIP, SO, SSOP,

TSSOP

su01410

I/O0

I/O1

I/O2

I/O3

VSS

VDD

SDA

SCL

INT

I/O7

I/O6

I/O5

I/O4

Figure 1. Pin configuration — 16-pin DIP, SO, SSOP, TSSOP

PIN CONFIGURATION — 20-pin SSOP

INT

SCL

n.c.

SDA

VDD

n.c.

I/O0

I/O7

I/O6

n.c.

I/O5

I/O4

VSS

I/O3

I/O2

n.c.

I/O1

SW02269

Figure 1. Pin configuration — 20-pin SSOP

PIN CONFIGURATION — HVQFN

su01670

TOP VIEW

I/O0

I/O1

I/O2

I/O3

I/O4

VSS

I/O5

INT

I/O6

I/O7

SDA

VDD

SCL

Figure 2. Pin Configuration — HVQFN

PIN DESCRIPTION

DIP16, SO16, SSOP16,

TSSOP16

PIN NUMBER

HVQFN16

PIN NUMBER

SSOP20

PIN NUMBER

SYMBOL

FUNCTION

Address input 0

Address input 1

Address input 2

4–7

2–5

10–12, 14

I/O0 to I/O3

VSS

Supply ground

7–10

16, 17, 19, 20

I/O4 to I/O7

INT

Interrupt output (open drain)

SCL

Serial clock line

SDA

Serial data line

VDD

Supply voltage

–

3, 8, 13, 18

n.c.

not connected

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