PCF8574APWR / TSSOP-20 / Interface - I/O Expanders
This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation. The PCF8574A device provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].
The device features an 8-bit quasi-bidirectional I/O port (P0–P7), including latched outputs with highcurrent drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are high. In this mode, only a current source to VCC is active.
| Product Attribute | Attribute Value |
|---|---|
| Texas Instruments | |
| Product Category: | Interface - I/O Expanders |
| 8 I/O | |
| I2C, Serial | |
| 100 kHz | |
| With Interrupt | |
| 6 V | |
| 2.5 V | |
| - 40 C | |
| + 85 C | |
| SMD/SMT | |
| TSSOP-20 | |
| 1 kV | |
| Reel | |
| Cut Tape | |
| MouseReel | |
| Brand: | Texas Instruments |
| Features: | Interrupt Pin |
| Input Voltage: | - 0.5 V to + 0.5 V |
| Logic Family: | PCF8574A |
| Operating Supply Voltage: | 2.5 V to 6 V |
| Output Current: | 25 mA |
| Output Voltage: | - 0.5 V to + 0.5 V |
| Product Type: | I/O Expanders |
| Series: | PCF8574A |
| Factory Pack Quantity: | 2000 |
| Subcategory: | Interface ICs |
| Unit Weight: | 0.002716 oz |
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