ATMEGA32(2008) 데이터 시트보기 (PDF) - Atmel Corporation

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ATMEGA32
(Rev.:2008)

8-bit Microcontroller with 32K Bytes In-System Programmable Flash

Atmel Corporation 

ATmega32(L)

Changes from Rev. 1. Added EEAR9 in EEARH in “Register Summary” on page 327.

2503C-10/02 to

Rev. 2503D-02/03 2. Added Chip Erase as a first step in“Programming the Flash” on page 284 and “Pro-

gramming the EEPROM” on page 285.

3. Removed reference to “Multi-purpose Oscillator” application note and “32 kHz Crys-

tal Oscillator” application note, which do not exist.

4. Added information about PWM symmetry for Timer0 and Timer2.

5. Added note in “Filling the Temporary Buffer (Page Loading)” on page 251 about writ-

ing to the EEPROM during an SPM Page Load.

6. Added “Power Consumption” data in “Features” on page 1.

7. Added section “EEPROM Write During Power-down Sleep Mode” on page 22.

8. Added note about Differential Mode with Auto Triggering in “Prescaling and Conver-

sion Timing” on page 204.

9. Updated Table 89 on page 232.

10.Added updated “Packaging Information” on page 333.

Changes from Rev. 1. Updated the “DC Characteristics” on page 287.

2503B-10/02 to

Rev. 2503C-10/02

Changes from Rev. 1. Canged the endurance on the Flash to 10,000 Write/Erase Cycles.

2503A-03/02 to

Rev. 2503B-10/02

2. Bit nr.4 – ADHSM – in SFIOR Register removed.

3. Added the section “Default Clock Source” on page 25.

4. When using External Clock there are some limitations regards to change of fre-

quency. This is described in “External Clock” on page 31 and Table 117 on page 289.

5. Added a sub section regarding OCD-system and power consumption in the section

“Minimizing Power Consumption” on page 34.

6. Corrected typo (WGM-bit setting) for:

– “Fast PWM Mode” on page 75 (Timer/Counter0)

– “Phase Correct PWM Mode” on page 76 (Timer/Counter0)

– “Fast PWM Mode” on page 120 (Timer/Counter2)

– “Phase Correct PWM Mode” on page 121 (Timer/Counter2)

7. Corrected Table 67 on page 164 (USART).

8. Updated VIL, IIL, and IIH parameter in “DC Characteristics” on page 287.

9. Updated Description of OSCCAL Calibration Byte.

In the datasheet, it was not explained how to take advantage of the calibration bytes for 2, 4,

and 8 MHz Oscillator selections. This is now added in the following sections:

2503N–AVR–06/08

339

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