TCA6424 Datasheet, PDF (16/29 Pages) Texas Instruments – LOW-VOLTAGE 24-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

TCA6424
LOW-VOLTAGE 24-BIT I²C AND SMBus I/O EXPANDER
WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
SCPS175 – NOVEMBER 2007
www.ti.com
Switching Characteristics
over recommended operating free-air temperature range, C_L ≤ 100 pF (unless otherwise noted) (see Figure 10)
PARAMETER
FROM
STANDARD MODE
FAST MODE
TO
I²C BUS
I²C BUS
UNIT
MIN
MAX
MIN
MAX
t_IV
Interrupt valid time
t_IR
Interrupt reset delay time
t_PV Output data valid
t_PS Input data setup time
t_PH Input data hold time
P port
SCL
SCL
P port
P port
INT
INT
P27–P00
SCL
SCL
4
4 µs
4
4 µs
400
400 ns
0
0
ns
300
300
ns
16
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