HomedatasheetPCF8574APWG4

PCF8574APWG4 Datasheet

Interface - I/O Expanders
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Description

PCF8574APWG4 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 PCF8574A 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 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. An additional strong pullup to VCC allows fast rising edges into heavily loaded outputs. This device turns on when an output is written high and is switched off by the negative edge of SCL. The I/Os should be high before being used as inputs. PCF8574APWG4 Features • Low Standby-Current Consumption of 10 µA Max • I2C to Parallel-Port Expander Capability for Directly Driving LEDs• Compatible With Most Microcontrollers• Open-Drain Interrupt Output• Latched Outputs With High-Current Drive• Latch-Up Performance Exceeds 100 mA PerJESD 78, Class II
Features

Parameters

[{"Name":"Maximum Operating Frequency","Value":"100 kHz"},{"Name":"Operating Supply Voltage","Value":"2.5 V to 6 V"},{"Name":"Operating Temperature Range","Value":"- 40 C to + 85 C"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

SEIKO INSTRUMENTS

Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.


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