CAT9555WI-T1 CATALYST SEMICONDUCTOR, CAT9555WI-T1 Datasheet - Page 2

• Manufacturer Part Number: CAT9555WI-T1
• Description: IC, I/O EXPANDER, 16BIT, 400KHZ, SOIC-24
• Manufacturer: CATALYST SEMICONDUCTOR

Specifications of CAT9555WI-T1

• Chip Configuration: 16 Bit
• Bus Frequency: 400kHz
• Ic Interface Type: I2C, SMBus
• No. Of I/o's: 16
• Supply Voltage Range: 2.3V To 5.5V
• Digital Ic Case Style: SOIC
• No. Of Pins: 24
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CAT9555
PIN CONFIGURATION
PIN DESCRIPTION
Doc. No. MD-9003 Rev. J
SOIC / TSSOP
13-20
4-11
12
21
22
23
24
1
2
3
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
INT
V
A1
A2
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
ss
SOIC (W), TSSOP (Y)
10
11
12
1
2
3
4
5
6
7
8
9
TQFN
10-17
1-8
22
23
24
18
19
20
21
9
2
2
2
2
2
1
1
1
1
15
14
13
4
3
2
1
0
9
8
7
6
V
SDA
SCL
A0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
CC
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
I/O
I/O
Pin Name
0.0
1.0
SDA
SCL
¯¯¯
INT
V
V
A1
A2
A0
2
- I/O
SS
- I/O
CC
0.7
1.7
I/O
I/O
I/O
I/O
I/O
I/O
0.0
0.1
0.2
0.3
0.4
0.5
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
1
2
3
4
5
6
TQFN 4 x 4mm (HV6, HT6)
24
7
23
8
(Top View)
22
9
Characteristics subject to change without notice
21
10
20
11
© 2010 SCILLC. All rights reserved
19
12
18
17
16
15
14
13
A0
I/O
I/O
I/O
I/O
I/O
1.7
1.6
1.5
1.4
1.3