鈥?/div>
Advanced RISC Architecture
鈥?131 Powerful Instructions 鈥?Most Single-clock Cycle Execution
鈥?32 x 8 General Purpose Working Registers
鈥?Fully Static Operation
鈥?Up to 16 MIPS Throughput at 16 MHz
鈥?On-chip 2-cycle Multiplier
Nonvolatile Program and Data Memories
鈥?32K Bytes of In-System Self-Programmable Flash
Endurance: 10,000 Write/Erase Cycles
鈥?Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation
鈥?1024 Bytes EEPROM
Endurance: 100,000 Write/Erase Cycles
鈥?2K Byte Internal SRAM
鈥?Programming Lock for Software Security
JTAG (IEEE std. 1149.1 Compliant) Interface
鈥?Boundary-scan Capabilities According to the JTAG Standard
鈥?Extensive On-chip Debug Support
鈥?Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface
Peripheral Features
鈥?Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
鈥?One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture
Mode
鈥?Real Time Counter with Separate Oscillator
鈥?Four PWM Channels
鈥?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
鈥?Byte-oriented Two-wire Serial Interface
鈥?Programmable Serial USART
鈥?Master/Slave SPI Serial Interface
鈥?Programmable Watchdog Timer with Separate On-chip Oscillator
鈥?On-chip Analog Comparator
Special Microcontroller Features
鈥?Power-on Reset and Programmable Brown-out Detection
鈥?Internal Calibrated RC Oscillator
鈥?External and Internal Interrupt Sources
鈥?Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby
and Extended Standby
I/O and Packages
鈥?32 Programmable I/O Lines
鈥?40-pin PDIP, 44-lead TQFP, and 44-pad MLF
Operating Voltages
鈥?2.7 - 5.5V for ATmega32L
鈥?4.5 - 5.5V for ATmega32
Speed Grades
鈥?0 - 8 MHz for ATmega32L
鈥?0 - 16 MHz for ATmega32
Power Consumption at 1 MHz, 3V, 25擄C for ATmega32L
鈥?Active: 1.1 mA
鈥?Idle Mode: 0.35 mA
鈥?Power-down Mode: < 1 碌A(chǔ)
鈥?/div>
鈥?/div>
鈥?/div>
8-bit
Microcontroller
with 32K Bytes
In-System
Programmable
Flash
ATmega32
ATmega32L
Preliminary
Summary
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
2503ES鈥揂VR鈥?9/03
Note: This is a summary document. A complete document
is available on our Web site at www.atmel.com.
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