ATMEGA644PV-10PQ Atmel, ATMEGA644PV-10PQ Datasheet - Page 35
![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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8011O–AVR–07/10
The capacitance (Ce +Ci) needed at each TOSC pin can be calculated by using:
where:
Crystals specifying load capacitance (CL) higher than 8.0 pF, require external capacitors applied
as described in
When this oscillator is selected, start-up times are determined by the SUT Fuses and CKSEL0
as shown in
Table 6-9.
Note:
Power Conditions
BOD enabled
Fast rising power
Slowly rising power
BOD enabled
Fast rising power
Slowly rising power
– Ce - is optional external capacitors as described in Figure 8-2 on page29
– Ci - is the pin capacitance in table 8-8 on page 33
– CL - is the load capacitance for a 32.768 kHz crystal specified by the crystal vendor
– CS - is the total stray capacitance for one TOSC pin.
1. These options should only be used if frequency stability at start-up is not important for the
application.
Table
Start-up Times for the Low Frequency Crystal Oscillator Clock Selection
Figure 6-2 on page
6-9.
Start-up Time from
Power-down and
Reserved
Reserved
Power-save
32K CK
32K CK
32K CK
1K CK
1K CK
1K CK
31.
C
=
2 CL
⋅
ATmega164P/324P/644P
–
C
Additional Delay
14CK + 4.1 ms
s
14CK + 65 ms
14CK + 4.1 ms
14CK + 65 ms
(V
from Reset
CC
14CK
14CK
= 5.0V)
(1)
(1)
(1)
CKSEL0
0
0
0
0
1
1
1
1
SUT1..0
00
01
10
11
00
01
10
11
35
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