ATMEGA32A-MUR Atmel, ATMEGA32A-MUR Datasheet - Page 270
![MCU AVR 32KB FLASH 16MHZ 44QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA32A-MUR
Manufacturer Part Number
ATMEGA32A-MUR
Description
MCU AVR 32KB FLASH 16MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA32A-MU.pdf
(353 pages)
Specifications of ATMEGA32A-MUR
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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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26.5
26.6
26.6.1
8155C–AVR–02/11
Page Size
Parallel Programming Parameters, Pin Mapping, and Commands
Signal Names
Table 26-5.
Table 26-6.
This section describes how to parallel program and verify Flash Program memory, EEPROM
Data memory, Memory Lock bits, and Fuse bits in the ATmega32A. Pulses are assumed to be at
least 250 ns unless otherwise noted.
In this section, some pins of the ATmega32A are referenced by signal names describing their
functionality during parallel programming, see
the following table are referenced by pin names.
The XA1/XA0 pins determine the action executed when the XTAL1 pin is given a positive pulse.
The bit coding is shown in
When pulsing WR or OE, the command loaded determines the action executed. The different
Commands are shown in
Figure 26-1. Parallel Programming
16K words (32Kbytes)
EEPROM Size
1024bytes
Flash Size
No. of Words in a Page and no. of Pages in the Flash
No. of Words in a Page and no. of Pages in the EEPROM
Page Size
4bytes
Table
Table
Page Size
RDY/BSY
64 words
PAGEL
+12 V
BS1
XA0
XA1
BS2
WR
26-10.
OE
26-9.
PCWORD
EEA[1:0]
PD1
PD2
PD3
PD4
PD5
PD6
PD7
RESET
XTAL1
GND
PA0
PCWORD
PC[5:0]
Figure 26-1
PB7 - PB0
No. of Pages
AVCC
VCC
No. of Pages
256
and
+5V
+5V
256
Table
DATA
26-7. Pins not described in
PCPAGE
EEA[9:2]
ATmega32A
PCPAGE
PC[13:6]
EEAMSB
PCMSB
9
13
270
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