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PCF8574DGVR

8-bit 2.5- to 5.5-V I2C/SMBus I/O expander with interrupt

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PCF8574DGVR General Description

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 PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of 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 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.

Texas Instruments, Inc Inventory

Key Features

  • Low Standby-Current Consumption of 10 µA Max
  • I2C to Parallel-Port Expander
  • Open-Drain Interrupt Output
  • Compatible With Most Microcontrollers
  • Latched Outputs With High-Current Drive
    Capability for Directly Driving LEDs
  • Latch-Up Performance Exceeds 100 mA
    Per JESD 78, Class II
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory

Specifications

Category Integrated Circuits (ICs)InterfaceI/O Expanders Mfr Texas Instruments
Series - Package Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status Active Digi-Key Programmable Not Verified
Number of I/O 8 Interface I²C
Interrupt Output Yes Features POR
Output Type Push-Pull Current - Output Source/Sink 1mA, 25mA
Clock Frequency 100 kHz Voltage - Supply 2.5V ~ 6V
Operating Temperature -40°C ~ 85°C Mounting Type Surface Mount
Package / Case 20-TFSOP (0.173", 4.40mm Width) Supplier Device Package 20-TVSOP
Base Product Number PCF8574

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Availability: 6209 PCS

Qty. Unit Price(USD) Ext. Price
1+ $1.392 $1.39
10+ $1.266 $12.66
30+ $1.188 $35.64
100+ $1.109 $110.90
500+ $1.072 $536.00
1000+ $1.056 $1,056.00

The prices below are for reference only.