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TI PCF8574APWR product image
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TI PCF8574APWRRoHS

Manufacturer
TI
MPN
PCF8574APWR
LCSC Part #
C94361
Packaging
ETSSOP-20
Customer #
Key Attributes
Remote 8-Bit I/O Expander for I²C Bus
Datasheetpdf iconTI PCF8574APWR

Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Interface/I/O Expanders
ManufacturerTI
PackagingETSSOP-20
Operating Temperature-40℃~+85℃
Interrupt OutputInterrupt Output
Output TypePush-Pull
Number of I/O8
FeaturesBuilt-in LED driver;Cascade and address expansion
Voltage - Supply2.5V~6V
Quiescent Supply Current10uA
Current - Output High(IOH)310uA
InterfaceI2C
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2000
Sales UnitPiece

Introduction

AI Translation

This 8-bit input/output (I/O) expander for the two-wire bidirectional bus (I2C) is designed to operate at VCC from 2.5V to 6V. 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 high-current drive capability for direct LED driving. Each quasi-bidirectional I/O can be used as either an input or output without the need for a data direction control signal. At power-on, these I/Os are set to a high level. In this mode, only one current source connected to VCC is active.

Features

AI Translation
  • Low standby current consumption, 10μA maximum
  • I2C to parallel port expander
  • Open-drain interrupt output
  • Compatible with most microcontrollers
  • Latched outputs with high current drive capability for direct LED driving
  • Latch-up performance exceeds 100mA, compliant with JESD78 Class II specifications

Applications

AI Translation
  • Telecom shelters: filter units
  • Servers
  • Routers (telecom switching equipment)
  • Personal computers
  • Personal electronic products
  • Industrial automation
  • Products with GPIO-constrained processors
In-Stock: 2,038
2,038 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 1.1225$ 1.12
10+$ 0.9931$ 9.93
30+$ 0.8702$ 26.11
100+$ 0.7796$ 77.96
500+$ 0.7408$ 370.40
1,000+$ 0.723$ 723.00
Standard Packaging2000/Full Reel
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