CAT9555 Datasheet, PDF (2/17 Pages) Catalyst Semiconductor – 16-bit I2C and SMBus I/O Port with Interrupt

CAT9555
PIN CONFIGURATION
SOIC (W) / TSSOP (Y)
TQFN (HV6)
INT 1
A1 2
24 VCC
23 SDA
A2 3
22 SCL
I/O0.0 4
21 A0
I/O0.1 5
20 I/O1.7
I/O0.2 6
19 I/O1.6
I/O0.3 7
19 I/O1.5
I/O0.4 8
17 I/O1.4
I/O0.5 9
16 I/O1.3
I/O0.6 10 15 I/O1.2
I/O0.7 11 14 I/O1.1
VSS 12 13 I/O1.0
PIN DESCRIPTION
SOIC / TSSOP
1
2
3
4-11
12
13-20
21
22
23
24
I/O0.0 1
I/O0.1 2
I/O0.2 3
I/O0.3 4
I/O0.4 5
I/O0.5 6
18 _A0
17 I/O1.7
16 I/O1.6
15 I/O1.5
14 I/O1.4
13 I/O1.3
TQFN
22
23
24
1-8
9
10-17
18
19
20
21
4 x 4 mm
Top View
PIN NAME
INT
A1
A2
I/O0.0 - I/O0.7
V_SS
I/O1.0 - I/O1.7
A0
SCL
SDA
V_CC
FUNCTION
Interrupt Output (open drain)
Address Input 1
Address Input 2
I/O Port 0.0 to I/O Port 0.7
Ground
I/O Port 1.0 to I/O Port 1.7
Address Input 0
Serial Clock
Serial Data
Power Supply
Doc. No. 8551, Rev. E
2
© 2007 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice