ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 82
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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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATmega640-16AU
Manufacturer:
OSRAM
Quantity:
12 000
Part Number:
ATmega640-16AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega640V-8AU
Manufacturer:
PHILIPS
Quantity:
56
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13.3.3
2549N–AVR–05/11
Alternate Functions of Port C
The Port C alternate function is as follows:
Table 13-9.
Table 13-10
signals shown in
Table 13-10. Overriding Signals for Alternate Functions in PC7:PC4
DIEOE
Signal
DIEOV
DDOE
Name
PUOE
PUOV
DDOV
PVOE
PVOV
AIO
DI
Port Pin
and
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
Port C Pins Alternate Functions
SRE • (XMM<1)
SRE • (XMM<1)
SRE • (XMM<1)
Table 13-11 on page 83
Figure 13-5 on page
PC7/A15
A15
0
1
0
0
–
–
ATmega640/1280/1281/2560/2561
SRE • (XMM<2)
SRE • (XMM<2)
SRE • (XMM<2)
76.
PC6/A14
relate the alternate functions of Port C to the overriding
A14
A15 (External Memory interface address bit 15)
A14 (External Memory interface address bit 14)
A13 (External Memory interface address bit 13)
A12 (External Memory interface address bit 12)
A11 (External Memory interface address bit 11)
A10 (External Memory interface address bit 10)
A9 (External Memory interface address bit 9)
A8 (External Memory interface address bit 8)
0
1
0
0
–
–
Alternate Function
SRE • (XMM<3)
SRE • (XMM<3)
SRE • (XMM<3)
PC5/A13
A13
0
1
0
0
–
–
SRE • (XMM<4)
SRE • (XMM<4)
SRE • (XMM<4)
PC4/A12
A12
0
1
0
0
–
–
82
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