PCF8574P

16DIP, 8-bit, Remote I/O expander, 100kHz, 2.5 V to 6 V, ±20mA, 400mW, silicon CMOS circuit

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Price:: US $0.10~0.50 / piece [Get Latest Price]

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PartNumber:: PCF8574P

Brand:: NXP Semiconductors - nxp | Pack: DIP | D/C: 10+

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Products Upload time: 2011-12-23

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Part Number:PCF8574P
US $0.10 - 0.50
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Product Summary

The PCF8574P is a Remote 8-bit I/O expander. It provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus). The PCF8574P consists of an 8-bit quasi-bidirectional port and an I2C-bus interface. The PCF8574P has a low current consumption and includes latched outputs with high current drive capability for directly driving LEDs. It also possesses an interrupt line (INT) which can be connected to the interrupt logic of the microcontroller. By sending an interrupt signal on this line, the remote I/O of the PCF8574P can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C-bus.

Parametrics

PCF8574P absolute maximum ratings: (1)supply voltage:-0.5V to +7.0V; (2)input voltage:VSS-0.5V to VDD+0.5V; (3)DC input current:±20mA; (4)DC output current:±25mA; (5)supply current:±100mA; (6)supply current:±100mA; (7)total power dissipation: 400mW; (8)power dissipation per output:100mW; (9)storage temperature:-65℃ to +150℃; (10)ambient temperature:-40℃ to +85℃.

Features

PCF8574P features: (1)Operating supply voltage 2.5 to 6 V; (2)Low standby current consumption of 10 μA maximum; (3)I2C-bus to parallel port expander; (4)Open-drain interrupt output; (5)8-bit remote I/O port for the I2C-bus; (6)Compatible with most microcontrollers; (7)Latched outputs with high current drive capability for directly driving LEDs; (8)Address by 3 hardware address pins for use of up to 8 devices (up to 16 with PCF8574A); (9)DIP16, or space-saving SO16 or SSOP20 packages.