ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 348
ATmega640
Manufacturer Part Number
ATmega640
Description
Manufacturer
Atmel Corporation
Specifications of ATmega640
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
86
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
5
Twi (i2c)
1
Uart
4
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
8
Eeprom (bytes)
4096
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
6
Output Compare Channels
16
Input Capture Channels
4
Pwm Channels
15
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Part Number
Manufacturer
Quantity
Price
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Part Number:
ATmega640-16AU
Manufacturer:
OSRAM
Quantity:
12 000
Part Number:
ATmega640-16AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
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Company:
Part Number:
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Manufacturer:
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Quantity:
56
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2549N–AVR–05/11
Figure 30-8. Parallel Programming Timing, Loading Sequence with Timing Requirements
Note:
Figure 30-9. Parallel Programming Timing, Reading Sequence (within the Same Page) with
Note:
Table 30-14. Parallel Programming Characteristics, V
Symbol
V
I
PP
PP
XTAL1
DATA
PAGEL
XTAL1
BS1
XA0
XA1
DATA
OE
BS1
XA0
XA1
1. The timing requirements shown in
1. The timing requirements shown in
also apply to loading operation.
also apply to reading operation.
Parameter
Programming Enable Voltage
Programming Enable Current
Timing Requirements
ADDR0 (Low Byte)
LOAD ADDRESS
ADDR0 (Low Byte)
LOAD ADDRESS
(LOW BYTE)
(LOW BYTE)
t
XLOL
t
OLDV
ATmega640/1280/1281/2560/2561
(1)
(LOW BYTE)
LOAD DATA
DATA (Low Byte)
DATA (Low Byte)
READ DATA
(LOW BYTE)
Figure 30-7 on page 347
Figure 30-7 on page 347
t
XLXH
t
BVDV
(HIGH BYTE)
LOAD DATA
CC
= 5V ±10%
DATA (High Byte)
(HIGH BYTE)
READ DATA
DATA (High Byte)
t
XLPH
LOAD DATA
11.5
(that is, t
Min
(that is, t
t
OHDZ
t
PLXH
DVXH
Typ
DVXH
LOAD ADDRESS
LOAD ADDRESS
(LOW BYTE)
, t
(LOW BYTE)
ADDR1 (Low Byte)
ADDR1 (Low Byte)
, t
XHXL
Max
12.5
250
XHXL
, and t
, and t
Units
XLDX
μA
V
(1)
XLDX
348
)
)
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