PCF8574TS-T, PCF8574T-T, PCF8575 Selling Leads, Datasheet
MFG:NXP Package Cooled:01+ D/C:4000
PCF8574TS-T, PCF8574T-T, PCF8575 Datasheet download
Part Number: PCF8574TS-T
MFG: NXP
Package Cooled: 01+
D/C: 4000
PCF8574TS-T, PCF8574T-T, PCF8575
- Table of contents:
Info of PCF8574TS-T
Info of PCF8574T-T
Info of PCF8575
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About PCF
PDF/DataSheet Download
Datasheet: PCF
File Size: 1246073 KB
Manufacturer: Welwyn Components Limited
Download : Click here to Download
About PCF
PDF/DataSheet Download
Datasheet: PCF
File Size: 1246073 KB
Manufacturer: Welwyn Components Limited
Download : Click here to Download
About PCF8575
PDF/DataSheet Download
Datasheet: PCF8575
File Size: 107904 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
PCF8575 General 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.
PCF8575 Maximum Ratings
| 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 |
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 current drive capability for directly driving LEDs
· Address by 3 hardware address pins for use of up to 8 devices
· SSOP24 package.
· 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.
PCF8575 Connection Diagram
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