| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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20 pcs
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20 pcs | On Request | 1 | On Request | On Request | 12+ | On Request | On Request |
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| Tape & Reel |
The PCF8574ADWR from Texas Instruments is a versatile 8-bit input/output (I/O) expander that communicates via the I2C bus. This device is designed for 2.5-V to 6-V VCC operation, making it compatible with a wide range of microcontrollers. It provides general-purpose remote I/O expansion through the serial clock (SCL) and serial data (SDA) lines.
The expander features an 8-bit quasi-bidirectional I/O port (P0–P7) with latched outputs capable of high-current drive, suitable for directly controlling LEDs. Each I/O pin can function as either an input or an output without requiring a separate data-direction control signal. At power-on, the I/Os are high, with only a current source to VCC active. An additional strong pullup to VCC ensures fast rising edges into heavily loaded outputs.
This component exhibits low standby current consumption, typically 10 μA maximum. Its latch-up performance exceeds 100 mA per JESD 78, Class II. The PCF8574ADWR is available in a SOIC package and is designed for surface mounting, often supplied on tape and reel for automated assembly processes.
The PCF8574ADWR operates from 2.5 V to 6 V.
The standby current consumption is a maximum of 10 μA.
The latch-up performance exceeds 100 mA per JESD 78, Class II.
The PCF8574ADWR is available in a SOIC package.
The RoHS status is RoHS3 Compliant.
The Moisture Sensitivity Level is 1.
The REACH status is Unaffected.