ATMEGA161 Datasheet, PDF (1/134 Pages) ATMEL Corporation – 8-bit Microcontroller with 16K Bytes In-System Programmable Flash

Features
• High-performance, Low-power AVR^® 8-bit Microcontroller
• Advanced RISC Architecture
– 130 Powerful Instructions - Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 8 MIPS Throughput at 8 MHz
– On-chip 2-cycle Multiplier
• Program and Data Memories
– 16K Bytes of Nonvolatile In-System Programmable Flash
Endurance: 1,000 Write/Erase Cycles
– Optional Boot Code Memory with Independent Lock Bits
Self-programming of Program and Data Memories
– 512 Bytes Nonvolatile In-System Programmable EEPROM
Endurance: 100,000 Write/Erase Cycles
– 1K Bytes Internal SRAM
– Programming Lock for Software Security
• Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescaler and PWM
– Expanded 16-bit Timer/Counter System with Separate Prescaler, Compare,
Capture Modes and Dual 8-, 9- or 10-bit PWM
– Dual Programmable Serial UARTs
– Master/Slave SPI Serial Interface
– Real Time Counter with Separate Oscillator
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
• Special Microcontroller Features
– Power-on Reset and Programmable Brown-out Detection
– External and Internal Interrupt Sources
– Three Sleep Modes: Idle, Power Save and Power-down
• I/O and Packages
– 35 Programmable I/O Lines
– 40-pin PDIP, 44-pin PLCC and TQFP
• Operating Voltages
– 2.7V - 5.5V (ATmega161L), 4.0V - 5.5V (ATmega161)
• Speed Grades
– 0 - 4 MHz (ATmega161L), 0 - 8 MHz (ATmega161)
• Commercial and Industrial Temperature Ranges
8-bit
Microcontroller
with 16K Bytes
In-System
Programmable
Flash
ATmega161
ATmega161L
Advance
Information
Rev. 1228A–08/99
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