特性 Features

? 8-bit CMOS Micro-Processor (uP) core

- Instruction set is compatible with standard 8051

- Build-in 6MHz RC Oscillator for USB and MCU

? Memory

- 16K Bytes Flash

- Support USB Self-Sectors-Programming (SSP)

- 256 bytes internal data memory

? Operation voltage 4.4V - 5.25V

? One set of Time Capture Circuit (Rising and Falling edge)

? Build-in 32KHz oscillator for programmable wake up timer

? 3.3V regulator output

- Maximum driving current 20mA

? Up to 37 general purpose I/O ports in 48 pin QFN package

? Interrupt

- 11 vectors interrupt structure

- 2 programmable priority levels

? Two 8-Bit auto-reloadable Base Timer

? USB Specification Compliance

- Complies with USB specification 1.1

- Support one Low-Speed USB Device Address with

- 3 endpoints (endpoint 0, 1, and 2)

- Built-in 1.5Kohms USB pull-up resistor

? Built-in Watch Dog Timer (WDT)

? Two blue LED port

? Reset

- Hardware reset

- External reset, Power-on reset, Low-voltage reset

- USB reset

- Watch-Dog reset

- Resume reset

? Two power-reducing modes:

- Idle mode

- Power-Down mode

? Package:

- 52 pad Chip Form

- 48 pin QFN (6 X 6)

General Description

The SH68F83 is designed for high performance, high integrated Low-speed USB devices and capable of USB In-System-Programming. It contains an 8051 micro-controller, Low-Speed USB SIE, Transceiver and data FIFO, build-in 3.3V regulator, on-chip 16K bytes program memory and internal 256 bytes data memory, Two 8-Bit auto-reloadable Base Timer, programmable Watch-dog timer and Wake-up timer, 37 selectable GPIO in 48 pin QFN package, build-in 6MHz oscillator to eliminate external crystal, POR and LVR circuit saving your external components cost. The SH68F83 is a highly integrated MCU designed for cost effective applications. Application can cover such items as Keyboards and others.