
Overview
The PCF8574APWRG4 is an i, O Expander made by Texas Instruments in a TSSOP-20 package with 20 pins. -40℃~+85℃ 100kHz 2.5V~6V 8 I2C Interrupt Output Open-drain Reset function、Cascade and address expansion、Built-in LED driver TSSOP-20 I/O Expanders ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCF8574ADGVR, from EasyEDA) and its footprint (Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2669680).
Symbol
Footprint
Parameters
7- Clock Frequency
- 100kHz
- Interface
- I2C
- Interrupt Output
- With Interrupt Output
- Number of I/O
- 8
- Operating Temperature
- -40℃~+85℃
- Output Type
- Leakage
- Supply Voltage
- 2.5V~6V
Order codes
1- PCF8574APWRG4LCSC C2669680
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | INT# | Unspecified |
| 2 | SCL | Unspecified |
| 3 | NC | Unspecified |
| 4 | SDA | Unspecified |
| 5 | VCC | Unspecified |
| 6 | A0 | Unspecified |
| 7 | A1 | Unspecified |
| 8 | NC | Unspecified |
| 9 | A2 | Unspecified |
| 10 | P0 | Unspecified |
| 11 | P1 | Unspecified |
| 12 | P2 | Unspecified |
| 13 | NC | Unspecified |
| 14 | P3 | Unspecified |
| 15 | GND | Unspecified |
| 16 | P4 | Unspecified |
| 17 | P5 | Unspecified |
| 18 | NC | Unspecified |
| 19 | P6 | Unspecified |
| 20 | P7 | Unspecified |
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Is there a KiCad symbol and footprint for the PCF8574APWRG4?
Yes. The symbol is EasyEDA_Cloud:PCF8574ADGVR and the footprint Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCF8574APWRG4?
TSSOP-20, with 20 pins. Its footprint is drawn on this page.
Where is the PCF8574APWRG4 datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the PCF8574APWRG4?
JLCPCB lists it as part C2669680, with 0 in stock; the sellers' links on this page open their listings.
What can replace the PCF8574APWRG4?
Parts like it in the library: the PCF8574APWG4 by Texas Instruments, the PCF8574APWRE4 by Texas Instruments, the PCF8574PWG4 by Texas Instruments and the PCF8574ARGY by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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