28-Pin 8-Bit CMOS Microcontrollers

Microcontroller Core Features:
• High-performance RISC CPU
• Only 35 single word instructions to learn
• All single cycle instructions except for program branches, which are two cycle
• Operating speed: DC - 20 MHz clock input DC - 200 ns instruction cycle
• 2K x 14 words of Program Memory, 128 x 8 bytes of Data Memory (RAM)
• Interrupt capability
• Eight level deep hardware stack
• Direct, indirect, and relative addressing modes
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
• Brown-out detection circuitry for Brown-out Reset (BOR)
• Programmable code-protection
• Power saving SLEEP mode
• Selectable oscillator options
• Low-power, high-speed CMOS EPROM technology
• Fully static design
• In-Circuit Serial Programming (ICSP)
• Wide operating voltage range: 2.5V to 5.5V
• High Sink/Source Current 25/25 mA
• Commercial, Industrial and Extended temperature ranges
• Low-power consumption:
   - < 2 mA @ 5V, 4 MHz
   - 22.5 µA typical @ 3V, 32 kHz
   -< 1 µA typical standby current

Peripheral Features:
• Timer0: 8-bit timer/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter with prescaler, can be incremented during sleep via external
crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler
• Capture, Compare, PWM module
• Capture is 16-bit, max. resolution is 12.5 ns, Compare is 16-bit, max. resolution is 200 ns,
PWM maximum resolution is 10-bit
• 8-bit multi-channel Analog-to-Digital converter
• Synchronous Serial Port (SSP) with Enhanced SPI and I2C
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