CH341A

Interface_USB

USB to UART / printer port / parallel port / 2-wire / 4-wire, SOIC-28 (SOP-28)

Symbol

28 pins
Schematic symbol for CH341A
Units
1
Kind
part
Grid
on 1.27 mm

Footprint

28 pads
Footprint for CH341A
Library
Package_SO
Mount
smd
Courtyard
11.86 × 18.4 mm
Link
exact

3D model

STEP

Package_SO_SOIC-28W_7.5x17.9mm_P1.27mm

10.30 × 17.90 × 2.75 mm

362 KB STEP

Library
Package_SO_SOIC-28W_7.5x17.9mm
Link
exact

Pins and pads

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

PinNameTypePad
1~{ACT}output1
2RSTIpassive2
3IN7/~{SIN}/~{AS}tri_state3
4~{ROV}/~{AFD}/~{DS}tri_state4
5TXD/~{ERR}bidirectional5
6RXD/PEMPinput6
7~{INT}/~{ACK}passive7
8IN3/SLCTpassive8
9V3passive9
10UD+bidirectional10
11UD-bidirectional11
12GNDpower_in12
13XIinput13
14XOoutput14
15~{CTS}/D0tri_state15
16~{DSR}/D1tri_state16
17~{RI}/D2tri_state17
18~{DCD}/D3tri_state18
19~{OUT}/D4tri_state19
20~{DTR}/D5tri_state20
21~{RTS}/D6tri_state21
22~{SLP}/D7tri_state22
23SDAbidirectional23
24SCLopen_collector24
25~{RDY}/~{STB}/~{WR}output25
26TNOW/~{INI}/~{RST}output26
27~{TEN}/BUSY/~{WT}passive27
28VCCpower_in28

Provenance

Credit
KiCad Libraries Contributors
Licence
CC-BY-SA-4.0-with-KiCad-exception
Link method
exact
Cross-check
passed
CH341A — Interface_USB | Trace Catalog