描述 Description

Overview
The ATmega169 is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega169 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 registers.
All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.

特性 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 16 MIPS Throughput at 16 MHz
?? – On-Chip 2-cycle Multiplier
? Non-volatile Program and Data Memories
?? – 16K bytes of In-System Self-Programmable Flash Endurance: 10,000 Write/Erase Cycles
?? – Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation
?? – 512 bytes EEPROM Endurance: 100,000 Write/Erase Cycles
?? – 1K byte Internal SRAM
?? – Programming Lock for Software Security
? JTAG (IEEE std. 1149.1 compliant) Interface
?? – Boundary-scan Capabilities According to the JTAG Standard
?? – Extensive On-chip Debug Support
?? – Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
? Peripheral Features
?? – 4 x 25 Segment LCD Driver
?? – Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
?? – One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
?? – Real Time Counter with Separate Oscillator
?? – Four PWM Channels
?? – 8-channel, 10-bit ADC
?? – Programmable Serial USART
?? – Master/Slave SPI Serial Interface
?? – Universal Serial Interface with Start Condition Detector
?? – Programmable Watchdog Timer with Separate On-chip Oscillator
?? – On-chip Analog Comparator
?? – Interrupt and Wake-up on Pin Change
? Special Microcontroller Features
?? – Power-on Reset and Programmable Brown-out Detection
?? – Internal Calibrated Oscillator
?? – External and Internal Interrupt Sources
?? – Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby
? I/O and Packages
– 53 Programmable I/O Lines
– 64-lead TQFP and 64-pad QFN/MLF
? Speed Grade:
?? – ATmega169V: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 8 MHz @ 2.7 - 5.5V
?? – ATmega169: 0 - 8 MHz @ 2.7 - 5.5V, 0 - 16 MHz @ 4.5 - 5.5V
? Temperature range:
?? – -40°C to 85°C Industrial
? Ultra-Low Power Consumption
?? – Active Mode:
????? 1 MHz, 1.8V: 350μA
????? 32 kHz, 1.8V: 20μA (including Oscillator)
????? 32 kHz, 1.8V: 40μA (including Oscillator and LCD)
?? – Power-down Mode:
????? 0.1μA at 1.8V