ATMEGA324P-A15MZ Atmel, ATMEGA324P-A15MZ Datasheet - Page 266
ATMEGA324P-A15MZ
Manufacturer Part Number
ATMEGA324P-A15MZ
Description
MCU AVR 32KB FLASH 15MHZ 44-VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA324P-A15MZ.pdf
(346 pages)
Specifications of ATMEGA324P-A15MZ
Package / Case
44-VQFN Exposed Pad
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
32
Eeprom Size
1K x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
2K x 8
Program Memory Size
32KB (32K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
I²C, SPI, UART/USART
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Reading the EEPROM
Programming the
Fuse Low Bits
Programming the
Fuse High Bits
266
ATmega32(L)
6. Set OE to “1”.
The algorithm for reading the EEPROM memory is as follows (refer to
on page 261
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”.
The algorithm for programming the Fuse Low bits is as follows (refer to
on page 261
1. A: Load Command “0100 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
3. Set BS1 to “0” and BS2 to “0”.
4. Give WR a negative pulse and wait for RDY/BSY to go high.
The algorithm for programming the Fuse high bits is as follows (refer to
on page 261
1. A: Load Command “0100 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
3. Set BS1 to “1” and BS2 to “0”. This selects high data byte.
4. Give WR a negative pulse and wait for RDY/BSY to go high.
5. Set BS1 to “0”. This selects low data byte.
Figure 131. Programming the Fuses
RESET +12V
RDY/BSY
for details on Command and Address loading):
for details on Command and Data loading):
for details on Command and Data loading):
PAGEL
XTAL1
DATA
BS2
XA1
XA0
BS1
WR
OE
$40
A
DATA
C
Write Fuse Low byte
XX
$40
A
DATA
C
“Programming the Flash”
Write Fuse high byte
“Programming the Flash”
“Programming the Flash”
XX
2503N–AVR–06/08
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