ATMEGA644PV-10PQ Atmel, ATMEGA644PV-10PQ Datasheet - Page 297
![MCU AVR 64K FLASH 10MHZ 40-PDIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA644PV-10PQ
Manufacturer Part Number
ATMEGA644PV-10PQ
Description
MCU AVR 64K FLASH 10MHZ 40-PDIP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644PV-10PQ
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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24.6
24.6.1
8011O–AVR–07/10
Parallel Programming Parameters, Pin Mapping, and Commands
Signal Names
This section describes how to parallel program and verify Flash Program memory, EEPROM
Data memory, Memory Lock bits, and Fuse bits in the ATmega164P/324P/644P. Pulses are
assumed to be at least 250 ns unless otherwise noted.
In this section, some pins of the ATmega164P/324P/644P are referenced by signal names
describing their functionality during parallel programming, see
ure 24-9 on page
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 24-1. Parallel Programming
Note:
Table 24-9.
Programming Mode
Signal Name in
RDY/BSY
1. Unused Pins should be left floating.
BS1
XA0
XA1
WR
OE
Pin Name Mapping
297. Pins not described in the following table are referenced by pin names.
Table 24-13 on page
RDY/BSY
Pin Name
Table 24-12 on page
PAGEL
+12V
BS2
PD1
PD2
PD3
PD4
PD5
PD6
BS1
XA0
XA1
WR
OE
(1)
I/O
PD1
PD2
PD3
PD4
PD5
PD6
PD7
RESET
XTAL1
GND
O
PA0
I
I
I
I
I
Function
0: Device is busy programming, 1: Device is ready for
new command.
Output Enable (Active low).
Write Pulse (Active low).
Byte Select 1.
XTAL Action Bit 0
XTAL Action Bit 1
298.
298.
ATmega164P/324P/644P
PB7 - PB0
AVCC
VCC
+5V
+5V
Figure 24-1 on page 297
DATA
and
Fig-
297
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