ATMEGA32A-AN Atmel, ATMEGA32A-AN Datasheet - Page 348

• 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
15 Timer/Counter0 and Timer/Counter1 Prescalers ................................ 88
16 16-bit Timer/Counter1 ............................................................................ 91
17 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 119
18 SPI – Serial Peripheral Interface ......................................................... 138
14.6
14.7
14.8
14.9
15.1
15.2
15.3
15.4
15.5
16.1
16.2
16.3
16.4
16.5
16.6
16.7
16.8
16.9
16.10
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11
18.1
Compare Match Output Unit ............................................................................77
Modes of Operation .........................................................................................78
Timer/Counter Timing Diagrams .....................................................................82
Register Description ........................................................................................84
Overview ..........................................................................................................88
Internal Clock Source ......................................................................................88
Prescaler Reset ...............................................................................................88
External Clock Source .....................................................................................88
Register Description ........................................................................................90
Features ..........................................................................................................91
Overview ..........................................................................................................91
Accessing 16-bit Registers ..............................................................................94
Timer/Counter Clock Sources .........................................................................96
Counter Unit ....................................................................................................97
Input Capture Unit ...........................................................................................98
Compare Match Output Unit ..........................................................................102
Modes of Operation .......................................................................................103
Timer/Counter Timing Diagrams ...................................................................110
Register Description ......................................................................................112
Features ........................................................................................................119
Overview ........................................................................................................119
Timer/Counter Clock Sources .......................................................................120
Counter Unit ..................................................................................................120
Output Compare Unit .....................................................................................121
Compare Match Output Unit ..........................................................................123
Modes of Operation .......................................................................................124
Timer/Counter Timing Diagrams ...................................................................128
Asynchronous Operation of the Timer/Counter .............................................130
Timer/Counter Prescaler ...............................................................................132
Register Description ......................................................................................132
Features ........................................................................................................138
ATmega32A
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