
Overview
The PCA9665PW is an interface Specialized made by NXP Semiconductors in a TSSOP-20 package with 20 pins. -40℃~+85℃ 1Mbps 2.3V~3.6V I2C Interrupt generation TSSOP-20 Interface - Specialized ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCA9665PW, 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 C17546729). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
5- Data Rate
- 1Mbps
- Features
- Interrupt generation
- Interface
- I2C
- Operating Temperature
- -40℃~+85℃
- Voltage - Supply
- 2.3V~3.6V
Order codes
2- PCA9665PWLCSC C17546729
- PCA9665PW,118LCSC C2678050
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | D0 | Unspecified |
| 2 | D1 | Unspecified |
| 3 | D2 | Unspecified |
| 4 | D3 | Unspecified |
| 5 | D4 | Unspecified |
| 6 | D5 | Unspecified |
| 7 | D6 | Unspecified |
| 8 | D7 | Unspecified |
| 9 | i.c. | Unspecified |
| 10 | VSS | Unspecified |
| 11 | WR# | Unspecified |
| 12 | RD# | Unspecified |
| 13 | CE# | Unspecified |
| 14 | A0 | Unspecified |
| 15 | A1 | Unspecified |
| 16 | INT# | Unspecified |
| 17 | RESET# | Unspecified |
| 18 | SCL | Unspecified |
| 19 | SDA | Unspecified |
| 20 | VDD | Unspecified |
Open-source boards using it
All 1- 2 layers35 × 103 mm

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Is there a KiCad symbol and footprint for the PCA9665PW?
Yes. The symbol is EasyEDA_Cloud:PCA9665PW 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 PCA9665PW?
TSSOP-20, with 20 pins. Its footprint is drawn on this page.
Where is the PCA9665PW datasheet?
NXP Semiconductors publishes it: the Datasheet link on this page opens it.
Where can I order the PCA9665PW?
JLCPCB lists it as part C17546729, with 0 in stock; the sellers' links on this page open their listings.
What can replace the PCA9665PW?
Parts like it in the library: the PCA9544APW by NXP Semiconductors, the NCA9545-DTSR by NOVOSENSE, the PCA9545APW by NXP Semiconductors and the PCA9544APW by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the PCA9665PW?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
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