
Overview
The HT8550 is a microcontroller made by HiTrend Tech in a LQFP-48(7x7) package with 48 pins. 10bit 128KB 12bit 20MHz 22 4.5V~5.5V 51 Family FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:HT8550, from EasyEDA) and its footprint (Package_QFP:LQFP-48_7x7mm_P0.5mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C182108).
Symbol
Footprint
Parameters
12- ADC (Bit)
- 12bit
- CPU Core
- 51 Series
- CPU Maximum Speed
- 20MHz
- Core Size
- 8 Bit
- DAC (Bit)
- 10bit
- Number of I/O
- 22
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in+External
- Program Memory Type
- FLASH
- Program Storage Size
- 128KB
- RAM Size
- 8KB
- Voltage - Supply
- 4.5V~5.5V
Order codes
1- HT8550LCSC C182108
Pinout
48| Pin | Name | Type |
|---|---|---|
| 1 | RSTN | Unspecified |
| 2 | GP_2 | Unspecified |
| 3 | TX_BUSY | Unspecified |
| 4 | GP_3 | Unspecified |
| 5 | ADC_INN | Unspecified |
| 6 | ADC_INP | Unspecified |
| 7 | AVDD | Unspecified |
| 8 | AVSS | Unspecified |
| 9 | AVDD | Unspecified |
| 10 | TX_OUT | Unspecified |
| 11 | ALC_VIN | Unspecified |
| 12 | ALC_IIN | Unspecified |
| 13 | AVDD | Unspecified |
| 14 | AVSS | Unspecified |
| 15 | VCC_DET | Unspecified |
| 16 | DVDD1P8 | Unspecified |
| 17 | DVSS | Unspecified |
| 18 | DVDD | Unspecified |
| 19 | XTAL1A | Unspecified |
| 20 | XTAL2A | Unspecified |
| 21 | ERASE | Unspecified |
| 22 | GP_4 | Unspecified |
| 23 | UART1_TX | Unspecified |
| 24 | UART1_RX | Unspecified |
| 25 | NC | Unspecified |
| 26 | NC | Unspecified |
| 27 | FLASH_SOUT | Unspecified |
| 28 | FLASH_SCLK | Unspecified |
| 29 | FLASH_CS_N | Unspecified |
| 30 | FLASH_SIN | Unspecified |
| 31 | CLKOUT | Unspecified |
| 32 | WDTEN | Unspecified |
| 33 | MCU_TMS | Unspecified |
| 34 | MCU_TDI | Unspecified |
| 35 | MCU_TDO | Unspecified |
| 36 | MCU_TCK | Unspecified |
| 37 | GP_0 | Unspecified |
| 38 | DVDD | Unspecified |
| 39 | DVSS | Unspecified |
| 40 | SPI_SOUT | Unspecified |
| 41 | SPI_SCLK | Unspecified |
| 42 | SPI_CS_N | Unspecified |
| 43 | SPI_SIN | Unspecified |
| 44 | I2C_SDA | Unspecified |
| 45 | I2C_SCL | Unspecified |
| 46 | GP_1 | Unspecified |
| 47 | UART0_RX | Unspecified |
| 48 | UART0_TX | Unspecified |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/hitrend-tech/HT8550" title="HT8550 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/hitrend-tech/HT8550.jpg" alt="HT8550" width="1200" height="900">[](https://pcbkit.io/parts/hitrend-tech/HT8550)Questions
Is there a KiCad symbol and footprint for the HT8550?
Yes. The symbol is EasyEDA_Cloud:HT8550 and the footprint Package_QFP:LQFP-48_7x7mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the HT8550?
LQFP-48(7x7), with 48 pins. Its footprint is drawn on this page.
Where is the HT8550 datasheet?
HiTrend Tech publishes it: the Datasheet link on this page opens it.
Where can I order the HT8550?
JLCPCB lists it as part C182108, with 0 in stock; the sellers' links on this page open their listings.
What can replace the HT8550?
Parts like it in the library: the STM32F103C8T6 by STMicroelectronics, the STM32F030C8T6 by STMicroelectronics, the STM32G070CBT6 by STMicroelectronics and the STM32G030C8T6 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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