AVR Microcontroller. ATMEGA32 Datasheet

ATMEGA32 Microcontroller. Datasheet pdf. Equivalent

ATMEGA32 Datasheet
Recommendation ATMEGA32 Datasheet
Part ATMEGA32
Description 8-bit AVR Microcontroller
Feature ATMEGA32; Features • High-performance, Low-power Atmel®AVR® 8-bit Microcontroller • Advanced RISC Architecture.
Manufacture ATMEL Corporation
Datasheet
Download ATMEGA32 Datasheet





ATMEL Corporation ATMEGA32
Features
High-performance, Low-power Atmel®AVR® 8-bit Microcontroller
Advanced RISC Architecture
– 131 Powerful Instructions – Most Single-clock Cycle Execution
– 32 × 8 General Purpose Working Registers
– Fully Static Operation
– Up to 16 MIPS 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, 44-lead TQFP, and 44-pad QFN/MLF
Operating Voltages
– 2.7V - 5.5V for ATmega32L
– 4.5V - 5.5V for ATmega32
Speed Grades
– 0 - 8MHz for ATmega32L
– 0 - 16MHz for ATmega32
Power Consumption at 1MHz, 3V, 25°C
– Active: 1.1mA
– Idle Mode: 0.35mA
– Power-down Mode: < 1µA
8-bit
Microcontroller
with 32KBytes
In-System
Programmable
Flash
ATmega32
ATmega32L
2503Q–AVR–02/11



ATMEL Corporation ATMEGA32
Pin
Configurations
Figure 1. Pinout ATmega32
ATmega32(L)
(XCK/T0) PB0
(T1) PB1
(INT2/AIN0) PB2
(OC0/AIN1) PB3
(SS) PB4
(MOSI) PB5
(MISO) PB6
(SCK) PB7
RESET
VCC
GND
XTAL2
XTAL1
(RXD) PD0
(TXD) PD1
(INT0) PD2
(INT1) PD3
(OC1B) PD4
(OC1A) PD5
(ICP1) PD6
PDIP
PA0 (ADC0)
PA1 (ADC1)
PA2 (ADC2)
PA3 (ADC3)
PA4 (ADC4)
PA5 (ADC5)
PA6 (ADC6)
PA7 (ADC7)
AREF
GND
AVCC
PC7 (TOSC2)
PC6 (TOSC1)
PC5 (TDI)
PC4 (TDO)
PC3 (TMS)
PC2 (TCK)
PC1 (SDA)
PC0 (SCL)
PD7 (OC2)
TQFP/MLF
2503Q–AVR–02/11
(MOSI) PB5
(MISO) PB6
(SCK) PB7
RESET
VCC
GND
XTAL2
XTAL1
(RXD) PD0
(TXD) PD1
(INT0) PD2
Note:
Bottom pad should
be soldered to ground.
PA4 (ADC4)
PA5 (ADC5)
PA6 (ADC6)
PA7 (ADC7)
AREF
GND
AVCC
PC7 (TOSC2)
PC6 (TOSC1)
PC5 (TDI)
PC4 (TDO)
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ATMEL Corporation ATMEGA32
Overview
Block Diagram
ATmega32(L)
The Atmel®AVR®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 consumption versus processing speed.
Figure 2. Block Diagram
VCC
PA0 - PA7
PC0 - PC7
GND
AVCC
AREF
PORTA DRIVERS/BUFFERS
PORTA DIGITAL INTERFACE
MUX &
ADC
ADC
INTERFACE
PROGRAM
COUNTER
PROGRAM
FLASH
INSTRUCTION
REGISTER
INSTRUCTION
DECODER
CONTROL
LINES
AVR CPU
STACK
POINTER
SRAM
GENERAL
PURPOSE
REGISTERS
X
Y
Z
ALU
STATUS
REGISTER
PROGRAMMING
LOGIC
+
-
SPI
COMP.
INTERFACE
PORTC DRIVERS/BUFFERS
PORTC DIGITAL INTERFACE
TWI
TIMERS/
COUNTERS
OSCILLATOR
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
MCU CTRL.
& TIMING
INTERRUPT
UNIT
EEPROM
OSCILLATOR
INTERNAL
CALIBRATED
OSCILLATOR
USART
XTAL1
XTAL2
RESET
PORTB DIGITAL INTERFACE
PORTB DRIVERS/BUFFERS
PB0 - PB7
PORTD DIGITAL INTERFACE
PORTD DRIVERS/BUFFERS
PD0 - PD7
2503Q–AVR–02/11
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