General Description

This device is an 8-bit high performance RISC-like microcontroller designed for USB product applications.

It is particularly suitable for use in products such as mice, keyboards and joystick. A HALT feature is in cluded to reduce power consumption.

Features


Operating voltage:

   fSYS=6M/12MHz: 4.4V~5.5V


Low voltage reset function


32 bidirectional I/O lines (max.)


8-bit programmable timer/event counter with over flow interrupt


16-bit programmable timer/event counter and over flow interrupts


Crystal oscillator (6MHz or 12MHz)


Watchdog Timer


6 channels 8-bit A/D converter


PS2 and USB modes supported


USB 2.0 low speed function


4 endpoints supported (endpoint 0 included)


409615 program memory ROM


1608 data memory RAM


HALT function and wake-up feature reduce power consumption


8-level subroutine nesting


Up to 0.33s instruction cycle with 12MHz system clock at VDD=5V


Bit manipulation instruction


15-bit table read instruction


63 powerful instructions


All instructions in one or two machine cycles


28-pin SOP, 48-pin SSOP package