TCA9534PWR
Interface ICs
Technical Specifications
| Type | Description |
|---|---|
| Interface | I2C |
| Number of I/O | 8 |
| Quiescent Current | 1.5 µA |
| Interrupt Output | Interrupt Output |
| Number of Supporting Devices | 8 |
| Current - Output High(IOH) | 10mA |
| Type | Description |
|---|---|
| Operating Temperature | -40°C~+85°C |
| Output Type | Push-Pull |
| Features | Reset function;Built-in LED driver;Cascade and address expansion |
| Supply Voltage | 1.65V~5.5V |
| Package / Case | TSSOP-16 |
Product Introduction
The TCA9534 is a 16-pin device that provides 8-bit general-purpose parallel input and output (I/O) expansion for the two-wire bidirectional I²C bus (or SMBus) protocol. The device can operate over a power supply voltage range of 1.65V to 5.5V, allowing the use of various devices. The device supports clock frequencies of 100kHz (Standard Mode) and 400kHz (Fast Mode). When additional I/O is required for switches, sensors, buttons, LEDs, fans, and other similar devices, an I/O expander such as the TCA9534 provides a simple solution. Features of the TCA9534 include interrupt generation on the INT pin. This allows the host device to know when an input port has changed state. The hardware-addressable pins A0, A1, and A2 allow up to eight TCA9534 devices on the same I²C bus. The device can also be powered by cycling the power supply to generate a power-on reset, which resets the device to its default state.
Features
- ESD protection exceeds JESD 22 specification requirements – 2000V Human Body Model (A114-A), 1000V Component Charged Model (C101)
- Low standby current consumption
- I²C to parallel port expander
- Open-drain outputs
- Active-low interrupt output
- 1.65V to 5.5V operating supply voltage range
- 5V-tolerant I/O ports
- 400kHz fast I²C bus
- 3 hardware address pins support up to 8 devices on I2C/SMBus
- Input and output configuration registers
- Polarity inversion register
- Internal power-on reset; all channels configured as inputs at power-on
- Glitch-free outputs at power-on
- Noise filter on SCL/SDA inputs
- Latched outputs with maximum high-current drive capability for direct LED driving
- Latch-up performance exceeds 100mA, compliant with JESD 78 Class II specification
Applications
- Servers
- Routers (telecom switching equipment)
- Personal computers
- Personal electronics (e.g., gaming consoles)
- Industrial automation
- Products using GPIO-constrained processors
Datasheet
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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