PCF8574APW vs PCF8574PWR Comparison
Detailed side-by-side comparison of PCF8574APW by Texas Instruments and PCF8574PWR by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
PCF8574PWR - 8-bit I2C I/O Expander 20-TSSOP | Texas Instruments
PCF8574PWR ✓ ActiveSpecification Comparison
| Parameter | PCF8574APW | PCF8574PWR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Number of I/O Lines | 8 bits | — |
| Operating Supply Voltage | 2.5 V to 5.5 V | — |
| Bus Interface | I2C/SMBus | — |
| Maximum I2C Clock Frequency | 100 kHz | — |
| Interrupt Output | Yes | Yes (active-low INT) |
| Address Input Count | 3 inputs | — |
| Maximum Standby Current | 10 microamperes | — |
| Port Type | 8-bit quasi-bidirectional | — |
| Package | 20-pin TSSOP | 20-pin TSSOP (PW) |
| Mounting Type | Surface mount | Surface Mount |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | — |
| Supply Current | [DATA_NEEDED: operating supply current] | — |
| I/O Output Current | [DATA_NEEDED: I/O output current] | — |
| I/O Input and Output Voltage Limits | [DATA_NEEDED: I/O input and output voltage limits] | — |
| Maximum Clock Frequency | 100 kHz | — |
| Power-On Reset | [DATA_NEEDED: power-on reset behavior] | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| Function | — | I/O Expander |
| Number of I/O | — | 8 |
| Interface | — | I2C (SMBus compatible) |
| Clock Frequency (Max) | — | 100 kHz |
| I2C Address Base | — | 0x20 (PCF8574A: 0x38) |
| Supply Voltage (VCC) | — | 2.5 V to 6 V |
| Supply Current (Standby) | — | 2.5 uA typical |
| Hardware Address Pins | — | 3 (A0, A1, A2) |
| Max Devices on Bus | — | 8 (16 combined with PCF8574A) |
| Output Drive (Source/Sink) | — | 25 mA / 25 mA per I/O |
| I/O Type | — | Quasi-bidirectional (no direction register) |
| Operating Temperature | — | -40 C to +85 C |
| MSL Level | — | 1 (unlimited floor life) |