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ATmega32L 44-Pin 8MHz 32kb Microcontroller Datasheet

Photograph
ATMEGA32L-8AI - ATmega32L 44-Pin 8MHz 32kb 8-bit Microcontroller

Features
  • Utilizes the AVR RISC Architecture
  • High-performance and Low-power 8-bit RISC Architecture
    • - 131 Instructions - Most Single Clock Cycle Execution
    • - 32 x 8 General Purpose Working Registers
    • - Up to 16 MIPS Throughput at 16MHz
    • - Fully Static Operation
    • - On-chip 2-cycle Multiplier
  • Data and Nonvolatile Program Memory
    • - 32k Bytes of In-System Self-Programmable Flash
    • - Optional Boot Code Section with Independent Lock Bits
    • - 1024 Bytes EEPROM
    • - 2K Bytes Internal SRAM
    • - Programming Lock for Software Security
  • JTAG 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
    • - On-chip Analog Comparator
    • - Programmable Watchdog Timer with Separate On-chip Oscillator
    • - Master/Slave SPI Serial Interface
    • - Two 8-bit Timer/Counters with Separate Prescalar, Compare
    • - One 16-bit Timer/Counter with Separate Prescaler, Compare and Capture mode
    • - Real Time Counter with Separate Oscillator
    • - Four PWM Channels
    • - Programmable Serial USART
    • - 8-channel, 10-bit ADC
    • - Byte-oriented Two-wire Serial Interface
  • 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 MLF
  • Operating Voltages
    • - 2.7-5.5V for ATmega32L
  • Speed Grades
    • - 0-8MHz for ATmega32L

Pin Layout
ATmega32L Pin Layout

Pin Description
Pin Number Description
1 - 3 PB5-PB7 - Port B
4 RESET
5 Vcc - Positive Supply
6 GND - Ground
7 XTAL2 - Crystal
8 XTAL1 - Crystal
9 - 16 PD0-PD7 - Port D
17 Vcc - Positive Power Supply
18 GND - Ground
19 - 26 PC0-PC7 - Port C
27 AVCC - Analog Power Supply
28 GND - Ground
29 - 37 PA7-PA0 - Port A
38 Vcc - Positive Power Supply
39 GND - Ground
40 -44 PA7-PA0 - Port A

Dimensional Drawing
ATmega32L TQFP44 Dimension Drawing