ATMEGA 32A
ATMEGA 32A
ATMEGA 32 – High-performance, Low-power AVR 8-bit Microcontroller
Number of Pins 40
Operating Voltage :
For ATMEGA32A:+4.5 to +5.5 V (+5.5V being absolute maximum)
For ATMEGA32L:+2.7 to 5.5V(+5.5V being absolute maximum)
Number of Input/output pins 32
Communication Interface
JTAG Interface(24,25,26,27 PINS)[Can be used for programming this controller]
SPI Serial Interface (5,6,7,8 PINS) [Can be used for programming this controller]
Programmable Serial USART (14,15 PINS) [Can be used for programming this controller]
Two-wire Serial Interface(22,23 PINS)[Can be used to connect peripheral devices like sensors and servos]
Advanced 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
Non-Volatile Program and Data Memories
- 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 Seperate 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
- 4.5-5.5V for ATmega32
Speed Grades
- 0-16MHz for ATmega32
Power Consumption at 4 Mhz, 3V, 35 °C
- Active: 1.1mA
- Idle Mode: 0.35mA
- Power-down Mode: < 1µA
ADC Module : 8 channels , 10-bit resolution ADC
Timer Module : Two 8-bit counters, One 16-bit counter [Total three]
Analog Comparators : 1
DAC Module Nil
PWM channels 4
External Oscillator 0-8MHz for ATMEGA32L , 0-16MHz for ATMEGA32A
Internal Oscillator 0-8MHz Calibrated Internal Oscillator
Program Memory Type Flash
Program Memory 32Kbytes [10000 write/erase cycles]
CPU Speed 16 MIPS
RAM Bytes 2KBytes
Data EEPROM 1024 Bytes
Watchdog Timer Yes
Power Save Modes
Six Modes[Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby]
Operating Temperature
-55°C to +125°C(+125 being absolute maximum, -55 being