ATMEGA32A-MNR Atmel, ATMEGA32A-MNR Datasheet - Page 276

IC MCU AVR 32K 16MHZ 44VQFN

ATMEGA32A-MNR

Manufacturer Part Number
ATMEGA32A-MNR
Description
IC MCU AVR 32K 16MHZ 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet

Specifications of ATMEGA32A-MNR

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-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA32A-MNR
Quantity:
4 000
26.7.6
26.7.7
26.7.8
8155C–AVR–02/11
Reading the Flash
Reading the EEPROM
Programming the Fuse Low Bits
Figure 26-4. Programming the EEPROM Waveforms
The algorithm for reading the Flash memory is as follows (refer to
page 272
The algorithm for reading the EEPROM memory is as follows (refer to
on page 272
The algorithm for programming the Fuse Low bits is as follows (refer to
on page 272
1. A: Load Command “0000 0010”.
2. G: Load Address High Byte ($00 - $FF)
3. B: Load Address Low Byte ($00 - $FF)
4. Set OE to “0”, and BS1 to “0”. The Flash word low byte can now be read at DATA.
5. Set BS1 to “1”. The Flash word high byte can now be read at DATA.
6. Set OE to “1”.
1. A: Load Command “0000 0011”.
2. G: Load Address High Byte ($00 - $FF)
3. B: Load Address Low Byte ($00 - $FF)
4. Set OE to “0”, and BS1 to “0”. The EEPROM Data byte can now be read at DATA.
5. Set OE to “1”.
1. A: Load Command “0100 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
RESET +12V
RDY/BSY
PAGEL
XTAL1
for details on Command and Address loading):
DATA
XA1
XA0
BS1
BS2
WR
OE
for details on Command and Address loading):
for details on Command and Data loading):
0x11
A
ADDR. HIGH
G
ADDR. LOW
B
DATA
C
XX
E
ADDR. LOW
B
DATA
K
C
E
XX
“Programming the Flash” on
“Programming the Flash”
“Programming the Flash”
ATmega32A
L
276

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