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CH557 - RGB-LED and USB Enhanced MCU

Datasheet Summary

Features

  • l Core: Enhanced E8051 core compatible with MCS51 instruction set, 79% of its instructions are single-byte single-cycle, and the average instruction speed is 8 to 15 times faster than that of the standard MCS51, with special XRAM data fast copy command, and double DPTR pointer. l ROM: 64KB non-volatile memory Flash-ROM, which supports 10K times of erase/write operations and can all be used for the program storage area;or it can be divided into a 60 KB program storage area, a 1 KB data storage ar.

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Datasheet Details

Part number CH557
Manufacturer ETC
File Size 947.53 KB
Description RGB-LED and USB Enhanced MCU
Datasheet download datasheet CH557 Datasheet
Additional preview pages of the CH557 datasheet.

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Full PDF Text Transcription

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CH557 Datasheet 1 RGB-LED and USB Enhanced MCU CH557, USB MCU CH556 Datasheet Version: 1F http://wch.cn 1. Overview The CH557 is a USB multi-host multi-device enhanced E8051 core MCU compatible with MCS51 instruction set. 79% of its instructions are single-byte single-cycle, and the average instruction speed is 8 to 15 times faster than that of the standard MCS51. CH557 supports the maximum 32 MHz system clock frequency, built-in 64K program memory Flash-ROM and 256-byte internal iRAM and 8 Kbytes of internal xRAM. The xRAM supports direct memory access (DMA). CH557 has a built-in USB host controller and receiver/transmitter, and 4-port USB root-hub, and supports full-speed and low-speed USB Host mode and USB Device mode.
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