TCA9535DBT
Active16-BIT 1.65- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT & CONFIG REGISTERS
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TCA9535DBT
Active16-BIT 1.65- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT & CONFIG REGISTERS
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | TCA9535DBT |
|---|---|
| Clock Frequency | 400 kHz |
| Current - Output Source/Sink [custom] | 10 mA |
| Current - Output Source/Sink [custom] | 25 mA |
| Features | POR |
| Interface | I2C, SMBus |
| Interrupt Output | True |
| Mounting Type | Surface Mount |
| Number of I/O | 16 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | Push-Pull |
| Package / Case | 24-SSOP |
| Supplier Device Package | 24-SSOP |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 1.65 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.91 | |
| 10 | $ 1.72 | |||
| 25 | $ 1.62 | |||
| 100 | $ 1.38 | |||
| Digi-Reel® | 1 | $ 1.91 | ||
| 10 | $ 1.72 | |||
| 25 | $ 1.62 | |||
| 100 | $ 1.38 | |||
| Tape & Reel (TR) | 250 | $ 0.91 | ||
| 500 | $ 0.80 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.44 | |
| 100 | $ 1.19 | |||
| 250 | $ 0.85 | |||
| 1000 | $ 0.64 | |||
Description
General part information
TCA9535 Series
The TCA9535 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 1.65 V to 5.5 V.
The TCA9535 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power on, the I/Os are configured as inputs. The system controller can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits.
The TCA9535 is identical to theTCA9555, except that the TCA9535 does not include the internal I/O pull-up resistor, which requires pull-ups and pull-downs on unused I/O pins when configured as an input and undriven.
Documents
Technical documentation and resources
