ATMEGA32A-PU Atmel 8 Bit 32K AVR Microcontroller

Description

The Atmel® AVR® ATmega32A 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
ATmega32A achieves throughputs approaching 1 MIPS per MHz allowing the system designer
to optimize power consumption versus processing speed.

• High-performance, Low-power Atmel® 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 16MIPS Throughput at 16MHz
• On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory segments
• 32Kbytes of In-System Self-programmable Flash program memory
• 1024Bytes EEPROM
• 2Kbytes Internal SRAM
• Write/Erase Cycles: 10,000 Flash/100,000 EEPROM
• Data retention: 20 years at 85°C/100 years at 25°C(1)
• 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
• Operating Voltages
• 2.7V – 5.5V
• Speed Grades
• 0 – 16MHz
• Power Consumption at 1MHz, 3V, 25°C
• Active: 0.6mA
• Idle Mode: 0.2mA
• Power-down Mode: < 1μA