ATmega1281 Atmel Corporation, ATmega1281 Datasheet - Page 25

• Manufacturer Part Number: ATmega1281
• Manufacturer: Atmel Corporation

Specifications of ATmega1281

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 17
• Usb Speed: No
• Usb Interface: No
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• 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: 2
• Pwm Channels: 8
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

10. Packaging Information
10.1
2549NS–AVR–05/11
Notes:
100A
1. This package conforms to JEDEC reference MS-026, Variation AED.
2. Dimensions D1 and E1 do not include mold protrusion. Allowable
3. Lead coplanarity is 0.08 mm maximum.
protrusion is 0.25 mm per side. Dimensions D1 and E1 are maximum
plastic body size dimensions including mold mismatch.
R
2325 Orchard Parkway
San Jose, CA 95131
C
e
0°~7°
PIN 1
L
PIN 1 IDENTIFIER
TITLE
100A, 100-lead, 14 x 14 mm Body Size, 1.0 mm Body Thickness,
0.5 mm Lead Pitch, Thin Profile Plastic Quad Flat Package (TQFP)
D1
D
B
ATmega640/1280/1281/2560/2561
E1
A1
E
A2
SYMBOL
A
A
A1
A2
D
D1
E
E1
B
C
L
e
15.75
13.90
15.75
13.90
0.17
0.05
0.09
0.45
COMMON DIMENSIONS
0.95
MIN
(Unit of Measure = mm)
–
0.50 TYP
16.00
14.00
16.00
14.00
NOM
1.00
–
–
–
–
–
DRAWING NO.
16.25
14.10
16.25
14.10
MAX
1.20
0.15
1.05
0.27
0.20
0.75
100A
2010-10-20
Note 2
Note 2
NOTE
REV.
D
25