CAT9554AWI-G Catalyst (ON Semiconductor), CAT9554AWI-G Datasheet - Page 6

• Manufacturer Part Number: CAT9554AWI-G
• Description: Interface - I/O Expanders 8-Bit Parallel IO
• Manufacturer: Catalyst (ON Semiconductor)

Specifications of CAT9554AWI-G

• Product Category: Interface - I/O Expanders
• Rohs: yes
• Logic Family: CAT9554A
• Operating Supply Voltage: 2.3 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-16
• Interface Type: I2C, SMBus
• Output Current: 50 mA
• Power Dissipation: 1 W
• Factory Pack Quantity: 47

INT: Interrupt Output
the port pins configured as an input changes state (differs
from the corresponding input port register bit state). The
interrupt is deactivated when the input returns to its previous
Shift Register
Shift Register
Shift Register
Configuration
The open−drain interrupt output is activated when one of
Read Pulse
Write Pulse
Data from
Data from
Data from
Register
Polarity
Pulse
Write
Write
Configuration
D
C
Register
K
FF
Q
Q
Figure 5. Simplified Schematic of I/O
Output Port
C
D
Register
K
FF
Q
Q
http://onsemi.com
6
Inversion Register
state or the input port register is read. Changing an I/O from
an output to an input may cause a false interrupt if the state
of the pin does not match the contents of the input port
register.
Input Port
D
C
D
Register
C
LATCH
Polarity
K
K
FF
Q
Q
Q
Q
0
to I/O
Q1
7
Q2
100 kW
Polarity
Register Data
Output Port
Register Data
Input Port
Register Data
I/O
To INT
V
V
CC
SS
0
to I/O
7