CH557
8-bit Enhanced USB MCU – CH557
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SKU: KL-229-0004891
Category: Microcontroller Units (MCUs/MPUs/SOCs)
About this item
| Attribute | Value |
|---|---|
| Manufacturer | WCH(Jiangsu Qin Heng) |
| Package | LQFP48/LQFP64 |
| Frequency | 32MHz |
| Flash | 63K |
| WDOG | YES |
| Touchkey | 14 |
| RAM | 8K+256 |
| SPI | 2 |
| UART | 2 |
| RGB LED | 8*16 |
| Built-in OSC | YES |
| Timer | 3*16b |
| VDD | 3.3V; 5; |
| IIC | 2 |
| PWM | 6 |
| I/O | 58 |
| ADC | 14*12b |
| DataFlash | 1K |
| CAP | 2 |
| USB | 4*H/1*D |
Overview
CH557 is an enhanced E8051 core MCU compatible with MCS51 instruction set. 79% of its instructions are single-byte single-cycle instructions. CH557 features fast run speed, and provides built-in 64KB Flash-ROM and 8K+256B RAM. CH557 has built-in USB host controller and transceiver and a built-in 4-port USB root-hub. CH557 supports USB 2.0 full-speed (12Mbps) and low-speed (1.5Mbps) transfer, and supports USB Host mode and USB Device mode. CH557 supports up to 64 bytes of data packet, with built-in FIFO, and supports DMA. CH557 provides abundant interface sources, including 2 UARTs, 6-channel PWM, 14-channel capacitive touch-key and 128 sets of RGB LED controllers, and CH557 has 2-channel SPI, IIC master and IIC slave and 14-channel 12-bit ADC, supports voltage comparator, has built-in 3 timers and 2-channel signal capture, and supports up to 58 GPIOs. CH556 is a simplified MCU of CH557, without PWM module of RGB LED. CH556 only provides a 2-port USB root-hub, and others are the same as that of CH557, please refer to CH557 datasheet and technical resources directly.
System Block Diagram
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Unit Price$2.2646
11278 in stock
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