ATmega640 Atmel Corporation, ATmega640 Datasheet - Page 360

• Manufacturer Part Number: ATmega640
• 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

Table 30-18. JTAG Programming Instruction (Continued)
2549N–AVR–05/11
Instruction
4g. Poll for Page Write Complete
5a. Enter EEPROM Read
5b. Load Address High Byte
5c. Load Address Low Byte
5d. Read Data Byte
6a. Enter Fuse Write
6b. Load Data Low Byte
6c. Write Fuse Extended Byte
6d. Poll for Fuse Write Complete
6e. Load Data Low Byte
6f. Write Fuse High Byte
6g. Poll for Fuse Write Complete
6h. Load Data Low Byte
6i. Write Fuse Low Byte
6j. Poll for Fuse Write Complete
7a. Enter Lock Bit Write
7b. Load Data Byte
7c. Write Lock Bits
7d. Poll for Lock Bit Write complete
8a. Enter Fuse/Lock Bit Read
8b. Read Extended Fuse Byte
8c. Read Fuse High Byte
Set (Continued)
o = data out, i = data in, x = don’t care
(9)
(6)
(7)
(7)
(7)
(6)
a = address high bits, b = address low bits, c = address extended bits, H = 0 - Low byte, 1 - High Byte,
TDI Sequence
0110011_00000000
0100011_00000011
0000111_aaaaaaaa
0000011_bbbbbbbb
0110011_bbbbbbbb
0110010_00000000
0110011_00000000
0100011_01000000
0010011_iiiiiiii
0111011_00000000
0111001_00000000
0111011_00000000
0111011_00000000
0110111_00000000
0010011_iiiiiiii
0110111_00000000
0110101_00000000
0110111_00000000
0110111_00000000
0110111_00000000
0010011_iiiiiiii
0110011_00000000
0110001_00000000
0110011_00000000
0110011_00000000
0110011_00000000
0010011_11iiiiii
0110011_00000000
0110001_00000000
0110011_00000000
0110011_00000000
0110011_00000000
0100011_00000100
0111010_00000000
0111011_00000000
0111110_00000000
0111111_00000000
0100011_00100000
ATmega640/1280/1281/2560/2561
TDO Sequence
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxox_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxox_xxxxxxxx
xxxxxox_xxxxxxxx
xxxxxox_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxox_xxxxxxxx
xxxxxxx_xxxxxxxx
Notes
(2)
(10)
(3)
(1)
(2)
(3)
(1)
(2)
(3)
(1)
(2)
(4)
(1)
(2)
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