General Description

These TinyPowerTM A/D Type with LCD 8-bit high performance RISC architecture microcontrollers are specifically, designed for applications that interface directly to analog signals and which require an LCD or LED interface. The devices include an integrated multi-channel Analog to Digital Converter, Pulse Width Modulation outputs and an LCD/LED driver.

Features

• Operating voltage:

   ♦ fSYS=32768Hz: 2.2V~5.5V

   ♦ fSYS=4MHz: 2.2V~5.5V

   ♦ fSYS=8MHz: 3.0V~5.5V

   ♦ fSYS=12MHz: 4.5V~5.5V

• Operating current:

   ♦ fSYS=1MHz at 3V, 170µA, typ.

   ♦ fSYS=32kHz at 3V, 6µA, typ.

• OTP Program Memory: 2K×14~8K×16

• RAM Data Memory: 128×8~1152×8

• 20 to 24 bidirectional I/O lines

• TinyPower technology for low power operation

• Three pin-shared external interrupts lines

• Multiple programmable Timer/Event Counters with overflow interrupt and 7-stage prescaler

• External Crystal, RC and 32768 XTAL oscillators

• Fully integrated RC 32kHz oscillator

• Externally supplied system clock option

• Watchdog Timer function

• PFD/Buzzer for audio frequency generation

• Dual Serial Interfaces: SPI and I2C

• LCD and LED driver function

• 4 operating modes: normal, slow, idle and sleep

• 6 or 8-channel 12-bit resolution A/D converter

• 3 or 4-channel 12-bit PWM outputs

• Low voltage reset function: 2.1V, 3.15V, 4.2V

• Low voltage detect function: 2.2V, 3.3V, 4.4V

• Bit manipulation instruction

• Table read instructions

• 63 powerful instructions

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

• Multiple level subroutine nesting

• All instructions executed in one or two machine cycles

• Power down and wake-up functions to reduce power consumption

• Wide range of available package types