ATTINY22L Datasheet, PDF (1/11 Pages) ATMEL Corporation – 8-bit Microcontroller with 2K Bytes of In-System Programmable Flash

Features
• Utilizes the AVR^® RISC Architecture
• AVR - High-performance and Low-power RISC Architecture
– 118 Powerful Instructions - Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Up to 1MIPS Throughput at 1MHz
• Data and Nonvolatile Program Memory
– 2K Bytes of In-System Programmable Flash
Endurance 1,000 Write/Erase Cycles
– 128 Bytes of internal SRAM
– 128 Bytes of In-System Programmable EEPROM
Endurance: 100,000 Write/Erase Cycles
– Programming Lock for Flash Program and EEPROM Data Security
• Peripheral Features
– One 8-bit Timer/Counter with Separate Prescaler
– Programmable Watchdog Timer with On-chip Oscillator
– SPI Serial Interface for In-System Programming
• Special Microcontroller Features
– Low-power Idle and Power Down Modes
– External and Internal Interrupt Sources
– Power-on Reset Circuit
– On-chip RC Oscillator
• Specifications
– Low-power, High-speed CMOS Process Technology
– Fully Static Operation
• Power Consumption at 3V, 25°C
– Active: 1.5 mA
– Idle Mode: 100 µA
– Power Down Mode: <1 µA
• I/O and Packages
– 5 Programmable I/O Lines
– 8-pin PDIP and SOIC
• Operating Voltages
– 2.7 - 6.0V
• Speed Grade
– Internal Oscillator ~1MHz @ 5.0V
8-bit
Microcontroller
with 2K Bytes of
In-System
Programmable
Flash
ATtiny22L
Preliminary
Description
The ATtiny22L is a low-power CMOS 8-bit microcontroller based on the AVR RISC
architecture. By executing powerful instructions in a single clock cycle, the ATtiny22L
achieves throughputs approaching 1 MIPS per MHz allowing the system designer to
optimize power consumption versus processing speed.
The AVR core combines a rich instruction set with 32 general purpose working regis-
ters. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU),
Pin Configuration
PDIP/SOIC
RESET 1
PB3 2
PB4 3
GND 4
8 VCC
7 PB2 (SCK/T0)
6 PB1 (MISO/INT0)
5 PB0 (MOSI)
Rev. 1273BS–02/00
Note: This is a summary document. For the complete 56-page
document, please visit our web site at www.atmel.com or e-mail a₁t
[e-mail] and request literature #1273B.