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