 English |
|
|
|
|
|
|
|
| TCA6416A Datasheet, PDF (21/32 Pages) Texas Instruments – LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS | |||
| |||
| ◁ |
TCA6416A
www.ti.com ....................................................................................................................................................................................................... SCPS194 â MAY 2009
APPLICATION INFORMATION
Figure 14 shows an application in which the TCA6416A can be used.
VCCI
(1.8 V)
VCC
10 kW
SCL
Master
Controller SDA
INT
GND RESET
10 kW
VCCI VCCP
2
24
10 kW 10 kW
VCCI VCCP
22
SCL
P00 4
23
SDA
1
INT
3
RESET
P01 5
P02 6
P03 7
P04 8
TCA6416A P05 9
P06 10
P07 11
P10 13
P11 14
P12 15
21
ADDR
P13 16
P14 17
P15 18
P16 19
P17 20
GND
12
10 kW (´ 7)
ALARM
(see Note E)
Subsystem 1
(e.g., Alarm)
A
ENABLE
B
Keypad
A. Device address configured as 0100000 for this example.
B. P00 and P02âP10 are configured as inputs.
C. P01 and P11âP17 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 14. Typical Application
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TCA6416A
Submit Documentation Feedback
21
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese