Skip to the content

CH555L

WCH (Nanjing Qinheng Microelectronics)Extended

LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHS

DatasheetJLCPCBLCSC
Part id
wch/CH555L
Category
Microcontrollers (MCU, MPU, SOC)
Package
LQFP-48(7x7)
Pins
48
In stock
41 at JLCPCB (C2761355)

Overview

The CH555L is a microcontroller made by WCH (Nanjing Qinheng Microelectronics) in a LQFP-48(7x7) package with 48 pins. LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH555L, from EasyEDA) and its footprint (Package_QFP:LQFP-48_7x7mm_P0.5mm, from KiCad's library), ready for a KiCad board. 41 are in stock at JLCPCB (part C2761355).

Symbol

P1.6/MISO/RXD1_/AIN61PL.7/SCK/TXD1_/AIN72P6.4/DCO3P3.0/RXD4P4.55P4.46P3.1/TXD7P3.2/INT08P3.3/INT19P3.4/T010P3.5/T1/MOSI111P3.6/MISO112P3.7/SCK113P4.314P4.215P4.616P4.717P7.0/XI18P7.1/XO/RST#/ALE_19P4.120P4.021P2.022P2.123P2.224P2.325P2.4/T2_/CAP1_26P2.5/T2EX_/CAP2_27P2.6/RXD128P2.7/TXD129P6.1/DP30P6.0/DM31P0.732P0.633P0.5/AIN1334P0.4/AIN1235P0.3/TXD_/AIN1136P0.2/RXD_/AIN1037P0.1/SDA0/AIN938P0.0/SCL0/AIN839VDD40GND/VSS41V3342P1.0/T2/CAP1/AIN043P1.1/T2EX/CAP2/AIN144P1.2/INT0_/AIN245P1.3/AIN346P1.4/SCS/AIN447P1.5/MOSI/AIN548
EasyEDA_Cloud:CH555LFrom EasyEDA

Footprint

Package_QFP:LQFP-48_7x7mm_P0.5mmFrom KiCad's library

Pinout

48
The pins of the CH555L
PinNameType
1P1.6/MISO/RXD1_/AIN6Unspecified
2PL.7/SCK/TXD1_/AIN7Unspecified
3P6.4/DCOUnspecified
4P3.0/RXDUnspecified
5P4.5Unspecified
6P4.4Unspecified
7P3.1/TXDUnspecified
8P3.2/INT0Unspecified
9P3.3/INT1Unspecified
10P3.4/T0Unspecified
11P3.5/T1/MOSI1Unspecified
12P3.6/MISO1Unspecified
13P3.7/SCK1Unspecified
14P4.3Unspecified
15P4.2Unspecified
16P4.6Unspecified
17P4.7Unspecified
18P7.0/XIUnspecified
19P7.1/XO/RST#/ALE_Unspecified
20P4.1Unspecified
21P4.0Unspecified
22P2.0Unspecified
23P2.1Unspecified
24P2.2Unspecified
25P2.3Unspecified
26P2.4/T2_/CAP1_Unspecified
27P2.5/T2EX_/CAP2_Unspecified
28P2.6/RXD1Unspecified
29P2.7/TXD1Unspecified
30P6.1/DPUnspecified
31P6.0/DMUnspecified
32P0.7Unspecified
33P0.6Unspecified
34P0.5/AIN13Unspecified
35P0.4/AIN12Unspecified
36P0.3/TXD_/AIN11Unspecified
37P0.2/RXD_/AIN10Unspecified
38P0.1/SDA0/AIN9Unspecified
39P0.0/SCL0/AIN8Unspecified
40VDDUnspecified
41GND/VSSUnspecified
42V33Unspecified
43P1.0/T2/CAP1/AIN0Unspecified
44P1.1/T2EX/CAP2/AIN1Unspecified
45P1.2/INT0_/AIN2Unspecified
46P1.3/AIN3Unspecified
47P1.4/SCS/AIN4Unspecified
48P1.5/MOSI/AIN5Unspecified

Parts like it

8

Questions

Is there a KiCad symbol and footprint for the CH555L?

Yes. The symbol is EasyEDA_Cloud:CH555L 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 CH555L?

LQFP-48(7x7), with 48 pins. Its footprint is drawn on this page.

Where is the CH555L datasheet?

WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.

Where can I order the CH555L?

JLCPCB lists it as part C2761355, with 41 in stock; the sellers' links on this page open their listings.

What can replace the CH555L?

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.