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PCF8575

Features: · Operating supply voltage 2.5 to 5.5 V· Low standby current consumption of 10 mA 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 cu...

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SeekIC No. : 004456459 Detail

PCF8575: Features: · Operating supply voltage 2.5 to 5.5 V· Low standby current consumption of 10 mA maximum· I2C-bus to parallel port expander· 400 kbits/s FAST I2C-bus· Open-drain interrupt output· 16-bit ...

PCF8575 Data Sheet

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Part Number:
PCF8575
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/25

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Product Details

Description



Features:

· Operating supply voltage 2.5 to 5.5 V
· Low standby current consumption of 10 mA 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.


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER MIN. MAX. UNIT
VDD supply voltage -0.5 +6.5 V
IDD supply current - ±100 mA
ISS supply current - ±200 mA
VI input voltage VSS - 0.5 VDD +6.5 V
II DC input current - ±20 mA
IO DC input current - ±25 mA
Ptot total power dissipation - 400 mA
PO power dissipation per output - 100 mA
Tstg storage temperature -65 +150
Tamb operating ambient temperature -40 +85



Description

The PCF8575 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 PCF8575 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 PCF8575 is an I2C-bus slave transmitter/receiver.

Every data transmission from the PCF8575 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.




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