PCF8574APWAlternatives & Equivalent Parts
About PCF8574APW
PCF8574APW is a io-expanders component manufactured by Texas Instruments. It comes in a TSSOP-20 package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | PCF8574APWSource | PCF8574PW | TCA9534PWR |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | TSSOP-20 | Small Outline Packages | Small Outline Packages |
| Pin Count | 20 | 20 | 16 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $0.8988 | $0.8597 | $0.3968 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | OBSOLETE | ACTIVE |
| Electrical Parameters | |||
| supplyVoltage | 2.5V to 6V | — | — |
| interface | I2C / SMBus | — | — |
| maxClockFrequency | 400 kHz | — | — |
| ioPins | 8 | — | — |
| operatingTemperature | -40 to +85 | — | — |
| packageType | TSSOP-20 | — | — |
| pitch | 0.65 mm | — | — |
| addressableDevices | 8 per bus | — | — |
| interruptOutput | Yes (active-low) | — | — |
| YTEOL | — | 0 | 15 |
| Address Bus Width | — | 8 | 8 |
| Clock Frequency-Max | — | 0.1 MHz | 0.4 MHz |
| JESD-30 Code | — | R-PDSO-G20 | R-PDSO-G16 |
| JESD-609 Code | — | e4 | e4 |
| Number of Bits | — | 8 | 8 |
| Number of I/O Lines | — | 8 | 8 |
| Number of Ports | — | 1 | 1 |
| Package Body Material | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | — | DIP20,.3 | — |
| Package Shape | — | RECTANGULAR | RECTANGULAR |
| Package Style | — | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | — | 260 | 260 |
| Qualification Status | — | Not Qualified | — |
| Supply Current-Max | — | 0.1 mA | 0.04 mA |
| Supply Voltage-Max | — | 6 V | 5.5 V |
| Supply Voltage-Min | — | 2.5 V | 1.65 V |
| Supply Voltage-Nom | — | 5 V | 1.8 V |
| Surface Mount | — | YES | YES |
| Technology | — | CMOS | CMOS |
| Temperature Grade | — | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | — | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | — | GULL WING | GULL WING |
| Terminal Pitch | — | 0.65 mm | 0.65 mm |
| Terminal Position | — | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | 30 |
| uPs/uCs/Peripheral ICs Type | — | PARALLEL IO PORT, GENERAL PURPOSE | PARALLEL IO PORT, GENERAL PURPOSE |
| Pbfree Code | — | — | Yes |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 2 alternatives for PCF8574APW — response within 24 hours.
Quick Links
Same 8-bit I2C I/O expander, different I2C address range (0x20-0x27 vs 0x38-0x3F)
8-bit I2C I/O expander with open-drain interrupt, 1.65V to 5.5V, TSSOP-16
Why Look for Alternatives?
Finding alternatives for PCF8574APW is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating PCF8574APW replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to PCF8574APW?
Known equivalents for PCF8574APW include PCF8574PW, TCA9534PWR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of PCF8574APW?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify PCF8574APW alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.