Datasheet4U Logo Datasheet4U.com

CH551 - 8 Enhanced USB single-chip

Download the CH551 datasheet PDF. This datasheet also covers the CH552 variant, as both devices belong to the same 8 enhanced usb single-chip family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • 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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CH552-ETC.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number CH551
Manufacturer Unknown Manufacturer
File Size 700.10 KB
Description 8 Enhanced USB single-chip
Datasheet download datasheet CH551 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
CH551H-30PT SCHOTTKY BARRIER DIODE Chenmko Enterprise
CH551N1PT SCHOTTKY BARRIER DIODE Chenmko Enterprise
CH551S-30PT SCHOTTKY BARRIER DIODE Chenmko Enterprise
CH5001A CMOS COLOR DIGITAL VIDEO CAMERA Chrontel
CH5008 Octal E1 Short Haul Line Interface Unit Chip

Other Datasheets by Unknown Manufacturer

Part Number Description
CH552 8 Enhanced USB single-chip
CH557 RGB-LED and USB Enhanced MCU
CH540 USB MCU
CH541 USB MCU
CH542 USB PD MCU

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
CH552 manual 1 8 Enhanced USB single-chip CH552, CH551 Manual Version: 1 http://wch.cn 1 Overview CH552 chip is a microcontroller core E8051 compatible MCS51 enhanced instruction set that 79% of single-byte instructions are single cycle instructions, instruction average velocity MCS51 8 to 15 times faster than the standard. CH552 system supports up to 32MHz frequency, built 16K bytes of program memory ROM and 256 bytes of internal iRAM 1K and the inner sheet xRAM, xRAM supports direct memory access DMA. CH552 built ADC analog to digital converter, a capacitance detection touch key, group 3 and the PWM signal acquisition and timers, dual asynchronous serial interface, SPI, USB full-speed device controller and transceiver function modules.