# CH552T (Component)

## Description

USB Microcontroller – The WCH CH552T is an 8\-bit enhanced E8051\-compatible microcontroller featuring a maximum clock frequency of 24 MHz, 16 KB Flash memory, 256 bytes of internal RAM, and an integrated USB 2\.0 full\-speed device interface\. It includes GPIO, UART, SPI, and timer peripherals, operates from a 3\.3 V or 5 V supply, and is housed in a 16\-pin SOP package\. 

\#WCH \#CH552T \#Microcontroller \#8051 \#USB2 \#EmbeddedSystems \#GPIO \#USBDevice

## Component Details

- **Owner:** lcsc
- **Created:** 11/9/2024
- **Last Updated:** 10/21/2026
- **Visibility:** Public
- **Product Info Url:** https://lcsc\.com/product\-detail/USB\_CH552T\_C111367\.html
- **Manufacturer Part Number:** CH552T
- **Part Type:** USB ICs
- **JLCPCB Part Class:** Extended Part
- **Manufacturer Name:** WCH\(南京沁恒\)
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/02c0160d239a6e2b4aaf6b9f376205291ddcb27eaa092f71a05d4d429e11a42a\.pdf
- **Symbol Style:** parametric\-v1
- **Package or Case Code:** TSSOP\-20\_L6\.5\-W4\.4\-P0\.65\-LS6\.4\-BL
- **LCSC Part Number:** C111367
- **Used in:** 2 projects

## Distributor Pricing (qty 1)

*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*

| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [LCSC](https://www.lcsc.com/product-detail/C111367.html) | $0\.6255 | 1\.7K |

- **Part Type:** Connectors
- **Sub-Type:** Memory Connectors
- **MPN:** CH552T
- **Package / Case Code:** 20\-TSSOP
- **Pin Count:** 20
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | P3\.2/TXD1\_/INT0/VBUS1/AIN3 | Unspecified |
| 2 | P1\.4/T2\_/CAP1\_/SCS/TIN2/UCC1/AIN1 | Unspecified |
| 3 | P1\.5/MOSI/PWM1/TIN3/UCC2/AIN2 | Unspecified |
| 4 | P1\.6/MISO/RXD1/TIN4 | Unspecified |
| 5 | P1\.7/SCK/TXD1/TIN5 | Unspecified |
| 6 | RST/T2EX\_/CAP2\_ | Unspecified |
| 7 | P1\.0/T2/CAP1/TIN0 | Unspecified |
| 8 | P1\.1/T2EX/CAP2/TIN1/VBUS2/AIN0 | Unspecified |
| 9 | P3\.1/PWM2\_/TXD | Unspecified |
| 10 | P3\.0/PWM1\_/RXD | Unspecified |
| 11 | P3\.3/INT1 | Unspecified |
| 12 | P3\.4/PWM2/RXD1\_/T0 | Unspecified |
| 13 | P3\.5/T1 | Unspecified |
| 14 | P3\.6/UDP | Unspecified |
| 15 | P3\.7/UDM | Unspecified |
| 16 | P1\.3/XO/TXD\_ | Unspecified |
| 17 | P1\.2/XI/RXD\_ | Unspecified |
| 18 | GND/VSS | Unspecified |
| 19 | VCC/VDD | Unspecified |
| 20 | V33 | Unspecified |

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*Generated from [https://flux\.ai/lcsc/ch552t\~0if8](https://flux.ai/lcsc/ch552t~0if8)*