TCA6408A Datasheet, PDF (3/35 Pages) Texas Instruments – LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

TCA6408A
www.ti.com............................................................................................................................................................. SCPS192C – APRIL 2009– REVISED JULY 2009
TSSOP
(PW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TERMINAL
NO.
µQFN
(RSV)
QFN
(RGT)
15
15
16
16
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
TERMINAL FUNCTIONS
NAME
DESCRIPTION
V_CCI
ADDR
RESET
P0
P1
P2
P3
GND
P4
P5
P6
P7
INT
SCL
SDA
V_CCP
Supply voltage of I²C bus. Connect directly to the V_CC of the external I²C
master. Provides voltage level translation.
Address input. Connect directly to V_CCP or ground.
Active-low reset input. Connect to V_CCI through a pullup resistor, if no active
connection is used.
P-port input/output (push-pull design structure). At power on, P0 is configured
as an input.
P-port input/output (push-pull design structure). At power on, P1 is configured
as an input.
P-port input/output (push-pull design structure). At power on, P2 is configured
as an input.
P-port input/output (push-pull design structure). At power on, P3 is configured
as an input.
Ground
P-port input/output (push-pull design structure). At power on, P4 is configured
as an input.
P-port input/output (push-pull design structure). At power on, P5 is configured
as an input.
P-port input/output (push-pull design structure). At power on, P6 is configured
as an input.
P-port input/output (push-pull design structure). At power on, P7 is configured
as an input.
Interrupt output. Connect to V_CCI through a pullup resistor.
Serial clock bus. Connect to V_CCI through a pullup resistor.
Serial data bus. Connect to V_CCI through a pullup resistor.
Supply voltage of TCA6408A for P port
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TCA6408A
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