ATMEGA32-16MU

ATmega 系列 16 MHz 32 KB 闪存 2 KB SRAM 8 位 微控制器 - MLF-44

Overview

The ATmega32 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 ATmega32 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power con sumption versus processing speed.

Features

• High-performance, Low-power AVR® 8-bit Microcontroller

• Advanced RISC Architecture

   – 131 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

• High Endurance Non-volatile Memory segments

   – 32K Bytes of In-System Self-programmable Flash program memory

   – 1024 Bytes EEPROM

   – 2K Byte Internal SRAM

   – Write/Erase Cycles: 10,000 Flash/100,000 EEPROM

   – Data retention: 20 years at 85°C/100 years at 25°C1

   – Optional Boot Code Section with Independent Lock Bits

     In-System Programming by On-chip Boot Program

     True Read-While-Write Operation

   – 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

   – Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes

   – 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

     8 Single-ended Channels

     7 Differential Channels in TQFP Package Only

     2 Differential Channels with Programmable Gain at 1x, 10x, or 200x

   – Byte-oriented Two-wire Serial Interface

   – Programmable Serial USART

   – Master/Slave SPI Serial Interface

   – Programmable Watchdog Timer with Separate On-chip Oscillator

   – On-chip Analog Comparator

• Special Microcontroller Features

   – Power-on Reset and Programmable Brown-out Detection

   – Internal Calibrated RC Oscillator

   – External and Internal Interrupt Sources

   – Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby

• I/O and Packages

   – 32 Programmable I/O Lines

   – 40-pin PDIP, 44-lead TQFP, and 44-pad QFN/MLF

• Operating Voltages

   – 2.7 - 5.5V for ATmega32L

   – 4.5 - 5.5V for ATmega32

• Speed Grades

   – 0 - 8 MHz for ATmega32L

   – 0 - 16 MHz for ATmega32

• Power Consumption at 1 MHz, 3V, 25°C for ATmega32L

   – Active: 1.1 mA

   – Idle Mode: 0.35 mA

   – Power-down Mode: < 1 µA