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PCF8575CTS/F1 查看數據表(PDF) - Philips Electronics

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产品描述 (功能)
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PCF8575CTS/F1
Philips
Philips Electronics Philips
PCF8575CTS/F1 Datasheet PDF : 24 Pages
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Philips Semiconductors
Remote 16-bit I/O expander for I2C-bus
Product specification
PCF8575C
1 FEATURES
Operating supply voltage from 4.5 to 5.5 V
Low standby current consumption of 10 µA maximum
I2C-bus to parallel port expander
400 kbits/s FAST I2C-bus
Open-drain interrupt output
16-bit remote I/O port for the I2C-bus
Compatible with most microcontrollers
Latched outputs with high current drive capability for
directly driving LEDs
Address by 3 hardware address pins for use of up to
8 devices
SSOP24 package.
2 GENERAL DESCRIPTION
The device is a silicon CMOS circuit. It provides general
purpose remote I/O expansion for most microcontroller
families via the two-line bidirectional bus (I2C-bus).
The device consists of a 16-bit quasi-bidirectional port and
an I2C-bus interface. The PCF8575C 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 can inform the
microcontroller if there is incoming data on its ports without
having to communicate via the I2C-bus. This means that
the device is an I2C-bus slave transmitter/receiver.
Every data transmission from the PCF8575C must consist
of an even number of bytes, the first byte will be referred
to as P07 to P00 and the second byte as P17 to P10. The
third will be referred to as P07 to P00 and so on.
3 ORDERING INFORMATION
TYPE
NUMBER
PCF8575CTS
NAME
SSOP24
PACKAGE
DESCRIPTION
plastic shrink small outline package; 24 leads; body width 5.3 mm
VERSION
SOT340-1
1999 Aug 05
3

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