ATMEGA640-16CU Atmel, ATMEGA640-16CU Datasheet - Page 371

• Manufacturer Part Number: ATMEGA640-16CU
• Description: IC MCU AVR 64K FLASH 100-CBGA
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA640-16CU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• 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): 2.7 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: 16 MHz
• Number Of Programmable I/os: 86
• Number Of Timers: 6
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• 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

30.3
30.3.1
Table 30-1.
Notes:
30.3.2
30.4
2549M–AVR–09/10
Factory Calibration
User Calibration
Clock Characteristics
1. Voltage range for ATmega640V/1281V/1280V/2561V/2560V.
2. Voltage range for ATmega640/1281/1280/2561/2560.
External Clock Drive
Calibrated Internal RC Oscillator Accuracy
External Clock Drive Waveforms
Calibration Accuracy of Internal RC Oscillator
Figure 30-5. External Clock Drive Waveforms
Table 30-2.
7.3 MHz - 8.1 MHz
Symbol
1/t
Δ
t
t
t
t
t
CHCX
CLCX
CLCH
CHCL
CLCL
t
CLCL
CLCL
Frequency
8.0 MHz
Parameter
Oscillator
Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period
from one clock
cycle to the next
External Clock Drive
V
IL1
V
IH1
1.8V - 5.5V
2.7V - 5.5V
ATmega640/1280/1281/2560/2561
V
V
3V
Min.
CC
500
200
200
CC
0
= 1.8V - 5.5V
(1)
(2)
Max.
2.0
2.0
2
2
V
Min.
CC
125
Temperature
50
50
-40°C - 85°C
0
= 2.7V - 5.5V
25°C
Max.
1.6
1.6
8
2
V
Min.
62.5
CC
25
25
0
Calibration Accuracy
= 4.5V - 5.5V
Max.
±10%
0.5
0.5
±1%
16
2
Units
MHz
ns
μs
%
371