PCA9544ADW

Texas Instruments

Bidirectional analog channel、Control interface integration、Hot-swap protection、Power-on reset security、Level shifting SOIC-20 Analog Switches - Special Purpose ROHS

Extended

Datasheetti/PCA9544ADW

Category: Analog Switches Special Purpose
Package: SOIC-20
Pins: 20

Overview

The PCA9544ADW is an analog Switches Special Purpose made by Texas Instruments in a SOIC-20 package with 20 pins. Bidirectional analog channel、Control interface integration、Hot-swap protection、Power-on reset security、Level shifting SOIC-20 Analog Switches - Special Purpose ROHS.

PCBKit's library has its KiCad symbol (Interface_Expansion:PCA9544AD, from KiCad's library) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2860730).

Symbol

Interface_Expansion:PCA9544ADFrom KiCad's library

Footprint

Package_SO:SOIC-20W_7.5x12.8mm_P1.27mmFrom KiCad's library

Parameters

Features: Bidirectional analog channel；Level shifting；Power-on reset security；Hot-swap protection；Control interface integration

Order codes

PCA9544ADWRLCSC C2860730
PCA9544ADWLCSC C2878439

Pinout

The pins of the PCA9544ADW
Pin	Name	Type
1	A0	Input
2	A1	Input
3	A2	Input
4	INT0	Input
5	SD0	Input/output
6	SC0	Output
7	INT1	Input
8	SD1	Input/output
9	SC1	Output
10	VSS	Power in
11	INT2	Input
12	SD2	Input/output
13	SC2	Output
14	INT3	Input
15	SD3	Input/output
16	SC3	Output
17	INT	Open collector
18	SCL	Input
19	SDA	Input/output
20	VDD	Power in

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A picture

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Questions

Is there a KiCad symbol and footprint for the PCA9544ADW?

Yes. The symbol is Interface_Expansion:PCA9544AD and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the PCA9544ADW?

SOIC-20, with 20 pins. Its footprint is drawn on this page.

Where is the PCA9544ADW datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the PCA9544ADW?

JLCPCB lists it as part C2860730, with 0 in stock; the sellers' links on this page open their listings.