TCA9535 Low-Power I/O Expander

Texas Instruments TCA9535 Low-Power I/O Expander is a 24-pin device that provides 16 bits of general-purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus or SMBus protocol. The device can operate with a power supply voltage ranging from 1.65V to 5.5V. The Texas Instruments TCA9535 consists of two 8-bit configurations (input or output selection), input port, output port, and polarity inversion (active-high or active-low operation) registers. When the power is turned on, the I/Os are configured as inputs. The system master can enable the I/Os as inputs or outputs by writing to the I/O configuration bits.

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Description Datasheet Availability Pricing (USD) 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
ESD Protection
Texas Instruments Interface - I/O Expanders Remote 16bit I2C LP I/O Expander A 595-T A 595-TCA9535DBT
Datasheet
1,823In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

TCA9535 SMD/SMT SSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 5.5 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
Texas Instruments Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander
Datasheet
7,381In Stock
33,000Expected 2026/12/17
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1,001
: 3,000

TCA9535 SMD/SMT WQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
Texas Instruments Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp A 595-TCA9535DBR
Datasheet
147In Stock
250Expected 2026/09/07
MouseReel Available
Min.: 1
Mult.: 1
: 250

TCA9535 SMD/SMT SSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
Texas Instruments Interface - I/O Expanders Remt 16Bit I2C SMBus Lo-Pwr I/O Expndr
Datasheet
151In Stock
25,885On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

TCA9535 SMD/SMT TSSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
Texas Instruments Interface - I/O Expanders Remote 16bit I2C and SMBux
Datasheet
33,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

TCA9535 SMD/SMT VQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
Texas Instruments Interface - I/O Expanders 16-bit 1.65- to 5.5- V I2C/SMBus I/O exp
Datasheet
1,799In Stock
3,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

TCA9535 SMD/SMT VQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV