ATMEGA32A-AN Atmel, ATMEGA32A-AN Datasheet - Page 347

• Manufacturer Part Number: ATMEGA32A-AN
• Description: IC MCU AVR 32K FLASH 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA32A-AN

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8155C–AVR–02/11
9
10 System Control and Reset .................................................................... 38
11 Interrupts ................................................................................................ 45
12 I/O Ports .................................................................................................. 50
13 External Interrupts ................................................................................. 69
14 8-bit Timer/Counter0 with PWM ............................................................ 73
Power Management and Sleep Modes ................................................. 33
8.9
8.10
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
10.1
10.2
10.3
10.4
10.5
11.1
11.2
12.1
12.2
12.3
12.4
13.1
14.1
14.2
14.3
14.4
14.5
Timer/Counter Oscillator ..................................................................................31
Register Description ........................................................................................32
Sleep Modes ....................................................................................................33
Idle Mode .........................................................................................................33
ADC Noise Reduction Mode ............................................................................34
Power-down Mode ...........................................................................................34
Power-save Mode ............................................................................................34
Standby Mode .................................................................................................35
Extended Standby Mode .................................................................................35
Minimizing Power Consumption ......................................................................35
Register Description ........................................................................................37
Resetting the AVR ...........................................................................................38
Reset Sources .................................................................................................38
Internal Voltage Reference ..............................................................................41
Watchdog Timer ..............................................................................................42
Register Description ........................................................................................42
Interrupt Vectors in ATmega32A .....................................................................45
Register Description ........................................................................................48
Overview ..........................................................................................................50
Ports as General Digital I/O .............................................................................51
Alternate Port Functions ..................................................................................55
Register Description ........................................................................................66
Register Description ........................................................................................69
Features ..........................................................................................................73
Overview ..........................................................................................................73
Timer/Counter Clock Sources .........................................................................74
Counter Unit ....................................................................................................74
Output Compare Unit .......................................................................................75
ATmega32A
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