| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
376 pcs
|
376 pcs | On Request | 1 | On Request | On Request | 22+ | On Request | On Request |
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The WCH CH555L is a versatile microcontroller designed with an enhanced E8051 core, offering compatibility with MCS51 instruction sets and significantly faster average instruction speeds compared to standard MCS51. It supports a maximum system clock frequency of 32MHz, complemented by 64KB of Flash program memory and 8KB of internal xRAM with DMA support.
This MCU integrates a full-speed USB 2.0 composite device controller, capable of acting as a USB hub with three HID function sub-devices. It features extensive LED driving capabilities with 3+8 PWM channels, supporting up to 384 monochrome LEDs or 128 RGB LEDs with up to 256 levels of grayscale or 16,777,216 colors.
Additional integrated peripherals include a 12-bit ADC with 14 channels, three 16-bit timers, two signal capture channels, dual asynchronous serial ports (UART), SPI (master/slave), and an I2C slave controller. The CH555L is available in an LQFP-48 package and supports various power supply voltages including 2.8V, 3.3V, and 5V, with low-power sleep modes for energy efficiency.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.30 | $0.30 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The CH555L features an enhanced E8051 core.
The CH555L supports a maximum system clock frequency of 32 MHz.
The CH555L has 64KB of Flash-ROM for program memory.
The CH555L includes a full-speed USB 2.0 composite device controller with a USB device-hub and three HID function sub-devices.
The CH555L has a 12-bit ADC with 14 channels.
The CH555L is available in an LQFP-48 package.