TCA9544A

Interface_Expansion

I2C Hub, 4 Channels, Interrupts, TSSOP-20

Symbol

20 pins
Schematic symbol for TCA9544A
Units
1
Kind
part
Grid
on 1.27 mm

Footprint

20 pads
Footprint for TCA9544A
Library
Package_SO
Mount
smd
Courtyard
7.7 × 7 mm
Link
exact
Footprint page
Open →

3D model

STEP

Package_SO_TSSOP-20_4.4x6.5mm_P0.65mm

6.40 × 6.50 × 1.20 mm

267 KB STEP

Library
Package_SO_TSSOP-20_4.4x6.5mm
Link
exact
Model page
Open →

Pins and pads

Every pin on the symbol has a pad on the footprint.

PinNameTypePad
1A0input1
2A1input2
3A2input3
4~{INT0}input4
5SD0bidirectional5
6SC0bidirectional6
7~{INT1}input7
8SD1bidirectional8
9SC1bidirectional9
10GNDpower_in10
11~{INT2}input11
12SD2bidirectional12
13SC2bidirectional13
14~{INT3}input14
15SD3bidirectional15
16SC3bidirectional16
17~{INT}open_collector17
18SCLbidirectional18
19SDAbidirectional19
20VCCpower_in20

On real boards

20+ designs use this part

2 placed it by name in a schematic; 18 carry its footprint on a board, and no other part in the catalog uses that footprint. Largest first.

Provenance

Credit
KiCad Libraries Contributors
Licence
CC-BY-SA-4.0-with-KiCad-exception
Link method
exact
Cross-check
passed