TCAL9538 8-Bit I/O Expanders

Texas Instruments TCAL9538 8-Bit I/O Expanders are developed for two-line bidirectional I2C bus (or SMBus) protocol and provide a 1.08V to 3.6V VCC operation. The TCAL9538 supports 100kHz (Standard-mode), 400kHz (Fast-mode), and 1MHz (fast-mode-plus) I2C clock frequencies. The I/O expanders offer a simple solution when additional I/Os are required for sensors, switches, push buttons, LEDs, fans, and more.

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Description Datasheet Availability Pricing (PEN) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Mounting Style
Package / Case
Interface Type
Number of I/Os
Interrupt Output
Supply Voltage - Min
Supply Voltage - Max
Maximum Clock Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Texas Instruments Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER
Datasheet
3,090In Stock
S/7.75
S/5.68
S/5.18
S/4.63
View
Min.: 1
Mult.: 1
TCAL9538 SMD/SMT TSSOP-16 I2C, Serial, SMBus 9 I/O With Interrupt 1.08 V 3.6 V 1 MHz - 40 C + 125 C
Texas Instruments Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER
Datasheet
5,465In Stock
9,000Expected 3/29/2027
Cut Tape
S/7.47
S/5.53
S/5.02
S/4.48
Reel
S/3.76
View
MouseReel Available
Min.: 1
Mult.: 1
: 3,000
TCAL9538 SMD/SMT UQFN-16 I2C, Serial, SMBus 9 I/O With Interrupt 1.08 V 3.6 V 1 MHz - 40 C + 125 C Reel, Cut Tape, MouseReel
Texas Instruments Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER
Datasheet
6,000Expected 3/11/2027
S/8.80
S/6.54
S/5.96
S/5.33
View
Min.: 1
Mult.: 1
TCAL9538 SMD/SMT X2QFN-16 I2C, Serial, SMBus 9 I/O With Interrupt 1.08 V 3.6 V 1 MHz - 40 C + 125 C