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2 layers29.2 × 20.3 mmHT42B534USB2UART, the printed circuit board in 3D

HT42B534USB2UART

jiegec/HT42B534USB2UART14

A simple USB to UART board designed with KiCad.

Full screenGitHub.kicad_pcb
Size
29.2 × 20.3 mm
Copper layers
2
Thickness
1.6 mm
Parts
15
Nets
11
Pads
45
Tracks, vias
48, 6
Pours
2
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
28 Dec 2020
Updated
4 May 2023

Overview

HT42B534USB2UART is an open-source printed circuit board by jiegec, from the jiegec/HT42B534USB2UART repository on GitHub. It is a 2-layer board of 29.2 × 20.3 mm with 15 parts on 11 nets, routed with 48 tracks and 6 vias.

Its parts include 7 capacitors, 3 resistors, 3 connectors, 1 IC and 1 diode. It belongs with the interfaces and adapters boards of this library.

README

README.md

HT42B534 USB 2 UART Board

A simple USB to UART board. Designed with KiCad. Manufactured and tested.

Front Back

How to use

  1. Plug USB to your PC
  2. Wire VIO to either V33O(3.3V) or VDD(5V)
  3. Connect TX, RX & GND (optionally VIO) to other devices

The voltage of RX/TX should match VIO.

Bill of Materials

csv
Reference, Value, Footprint, Datasheet, Product
"U1","HT42B534_8SOP","Package_SO:SOP-8_3.9x4.9mm_P1.27mm","https://www.holtek.com/documents/10179/116711/HT42B534-xv110.pdf","https://item.szlcsc.com/504007.html"
"C1","0.1uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"J1","USB_A","Connector_USB:USB_A_CNCTech_1001-011-01101_Horizontal","~","https://item.szlcsc.com/98530.html"
"R2","33","Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder","~"
"R1","33","Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder","~"
"C6","47pF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C7","47pF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C3","1uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C2","0.1uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C4","10uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"C5","0.1uF","Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder","~"
"R3","330","Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder","~"
"D1","LED","Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder","~"
"J3","Conn_01x03","Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical","~"
"J2","Conn_01x04","Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal","~"

USB Device Info

lsusb output:

shell
$ lsusb
Bus 000 Device 001: ID 04d9:b534 Holtek Semiconductor, Inc. USB TO UART BRIDGE  Serial: 0000

System Information:

text
USB TO UART BRIDGE:

  Product ID:	0xb534
  Vendor ID:	0x04d9  (Holtek Semiconductor, Inc.)
  Version:	2.10
  Serial Number:	0000
  Speed:	Up to 12 Mb/s
  Manufacturer:	HOLTEK
  Location ID:	0x00142000 / 12
  Current Available (mA):	500
  Current Required (mA):	100
  Extra Operating Current (mA):	0

License

Copyright 2020-2021 Jiajie Chen

SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1

Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file except in compliance with the License, or, at your option, the Apache License version 2.0. You may obtain a copy of the License at

https://solderpad.org/licenses/SHL-2.1/

Unless required by applicable law or agreed to in writing, any work distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Parts

15
QtyValueFootprintReferences
30.1uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC1, C2, C5
233Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1, R2
247pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC6, C7
110uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC4
11uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC3
1330Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR3
1Conn_01x03Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ3
1Conn_01x04Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_HorizontalJ2
1HT42B534_8SOPPackage_SO:SOP-8_3.9x4.9mm_P1.27mmU1
1LEDDiode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolderD1
1USB_AConnector_USB:USB_A_CNCTech_1001-011-01101_HorizontalJ1

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Questions

How big is the HT42B534USB2UART PCB?

It measures 29.2 × 20.3 mm and has 2 copper layers, 1.6 mm thick.

What parts does the HT42B534USB2UART use?

15 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the HT42B534USB2UART KiCad files?

From the jiegec/HT42B534USB2UART repository on GitHub, at the commit this page was made from: the board is HT42B534USB2UART.kicad_pcb and its schematic HT42B534USB2UART.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the HT42B534USB2UART design in my own project?

Its repository states no licence, so its author keeps all rights: ask jiegec before reusing the design.