ATMEGA640V-8CU Atmel, ATMEGA640V-8CU Datasheet - Page 45
![IC MCU AVR 64K FLASH 100-CBGA](/photos/6/89/68968/313-100-cbga_sml.jpg)
ATMEGA640V-8CU
Manufacturer Part Number
ATMEGA640V-8CU
Description
IC MCU AVR 64K FLASH 100-CBGA
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA640V-8CU
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
86
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TFBGA
Processor Series
ATMEGA64x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
8 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
86
Number Of Timers
6
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
For Use With
ATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK503 - STARTER KIT AVR EXP MODULE 100P
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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9.6
2549M–AVR–09/10
Low Frequency Crystal Oscillator
Table 9-6.
Notes:
The device can utilize a 32.768 kHz watch crystal as clock source by a dedicated Low Fre-
quency Crystal Oscillator. The crystal should be connected as shown in
When this Oscillator is selected, start-up times are determined by the SUT Fuses and CKSEL0
as shown in
The Low-Frequency Crystal Oscillator provides an internal load capacitance, see
each XTAL/TOSC pin.
Table 9-7.
Device
Ceramic resonator, slowly
Ceramic resonator, slowly
ATmega640/1280/1281/2560
Ceramic resonator, BOD
Crystal Oscillator, slowly
Ceramic resonator, fast
Ceramic resonator, fast
Crystal Oscillator, BOD
Crystal Oscillator, fast
Oscillator Source /
Power Conditions
rising power
rising power
rising power
rising power
rising power
rising power
1. These options should only be used when not operating close to the maximum frequency of the
2. These options are intended for use with ceramic resonators and will ensure frequency stability
enabled
enabled
device, and only if frequency stability at start-up is not important for the application. These
options are not suitable for crystals.
at start-up. They can also be used with crystals when not operating close to the maximum fre-
quency of the device, and if frequency stability at start-up is not important for the application.
/2561
Table 9-8 on page
Start-up Times for the Full Swing Crystal Oscillator Clock Selection
Capacitance for Low Frequency Oscillator
32 kHz oscillator
Start-up Time from
Power-down and
46.
ATmega640/1280/1281/2560/2561
Power-save
System Osc.
Timer Osc.
16K CK
16K CK
16K CK
258 CK
258 CK
1K CK
1K CK
1K CK
Cap (Xtal1/Tosc1)
Additional Delay
14CK + 4.1 ms
14CK + 4.1 ms
14CK + 65 ms
14CK + 65 ms
14CK + 4.1 ms
14CK + 65 ms
(V
from Reset
CC
14CK
14CK
18 pF
6 pF
= 5.0V)
(2)
(1)
(2)
(1)
(2)
Figure 9-2 on page
Cap (Xtal2/Tosc2)
CKSEL0
0
0
0
0
1
1
1
1
8 pF
6 pF
Table 9-7
SUT1:0
00
01
10
11
00
01
10
11
43.
45
at
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