Datasheet

P00
ADDR
P12
P13
P14
P15
GND
INT
SDA
SCL
TCA6416A
SDA
SCL
INT
GND
Master
Controller
P02
P01
P03
P04
P05
P06
P07
P10
P11
P16
P17
22
2
23
1
21
12
24
RESET
3
RESET
V
(1.8 V)
CCI
V
CC
V
CCP
10 kW
10 kW
10 kW
10 kW
V
CCP
V
CCI
V
CCI
Keypad
ALARM
Subsystem 1
(e.g., Alarm)
A
B
4
ENABLE
5
10 k 7)W (´
6
7
8
9
10
11
13
14
15
16
17
18
19
20
(see Note E)
TCA6416A
www.ti.com SCPS194A –MAY 2009–REVISED NOVEMBER 2009
APPLICATION INFORMATION
Figure 16 shows an application in which the TCA6416A can be used.
A. Device address configured as 0100000 for this example.
B. P00 and P02–P10 are configured as inputs.
C. P01 and P11–P17 are configured as outputs.
D. Pin numbers shown are for the PW package.
E. Resistors are required for inputs (on P port) that may float. If a driver to an input will never let the input float, a resistor
is not needed. Outputs (in the P port) do not need pullup resistors.
Figure 16. Typical Application
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