CH551 - 8 Enhanced USB single-chip

Product Overview

Part number	CH551
Manufacturer	ETC
File Size	700.10 KB
Description	8 Enhanced USB single-chip
Datasheet	CH551 Datasheet
Note	This datasheet PDF includes multiple part numbers: CH551, CH552. Please refer to the document for exact specifications by model.
Additional preview pages of the CH551 datasheet.

l Core: Enhanced E8051 core MCS51 compatible instruction set which 79% of single-byte instructions are single cycle instructions, instruction average Faster than standard MCS51 8 ~ 15 times, specific data XRAM fast copy instruction, dual DPTR pointer. l ROM: 16KB capacity reprogrammable non-volatile memory ROM, may all be used to program memory space; or may be divided And a program storage area for the 2KB 14KB boot code BootLoader / ISP program area. l DataFlash: 128 bytes of data can be repea.

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Published: Nov 7, 2025 |