ATMEGA1281V-8MU Atmel, ATMEGA1281V-8MU Datasheet - Page 378

• Manufacturer Part Number: ATMEGA1281V-8MU
• Description: IC MCU AVR 128K FLASH 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1281V-8MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 8 KB
• Interface Type: 2-Wire, SPI, USART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 6
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFPATAVRDB101 - MODULE DISPLAY LCD/RGB BACKLIGHT770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 30-8.
Note:
30.9
Table 30-9.
Notes:
2549M–AVR–09/10
0
1
2
3a
3b
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
AVCC
R
V
V
R
V
V
REF
DIFF
REF
AIN
INT
IN
Symbol
1/t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
LHLL
AVLL
LLAX_ST
LLAX_LD
AVLLC
AVRL
AVWL
LLWL
LLRL
DVRH
RLDV
RHDX
RLRH
DVWL
WHDX
DVWH
WLWH
Values are guidelines only.
External Data Memory Timing
1. This assumes 50% clock duty cycle. The half period is actually the high time of the external clock, XTAL1.
2. This assumes 50% clock duty cycle. The half period is actually the low time of the external clock, XTAL1.
CLCL
Parameter
Analog Supply Voltage
Reference Voltage
Input Voltage
Input Differential Voltage
ADC Conversion Output
Input Bandwidth
Internal Voltage Reference
Reference Input Resistance
Analog Input Resistance
ADC Characteristics, Differential Channels (Continued)
External Data Memory Characteristics, 4.5 to 5.5 Volts, No Wait-state
Parameter
Oscillator Frequency
ALE Pulse Width
Address Valid A to ALE Low
Address Hold After ALE Low,
write access
Address Hold after ALE Low,
read access
Address Valid C to ALE Low
Address Valid to RD Low
Address Valid to WR Low
ALE Low to WR Low
ALE Low to RD Low
Data Setup to RD High
Read Low to Data Valid
Data Hold After RD High
RD Pulse Width
Data Setup to WR Low
Data Hold After WR High
Data Valid to WR High
WR Pulse Width
8 MHz Oscillator
57.5
57.5
47.5
47.5
42.5
Min
115
115
115
115
115
125
115
40
5
5
0
ATmega640/1280/1281/2560/2561
Condition
Max
67.5
67.5
75
0.5t
0.5t
0.5t
0.5t
0.5t
1.0t
1.0t
1.0t
1.0t
1.0t
1.0t
-V
1.0t
V
CLCL
CLCL
CLCL
CLCL
CLCL
Min
REF
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CC
0.0
Min
GND
40
-511
5
5
0
2.7
2.3
CLCL
Variable Oscillator
- 0.3
/Gain
-15
-15
-20
-5
-5
-10
-10
-10
-10
-10
-10
(1)
(1)
(1)
(2)
(2)
(1)
Typ
2.56
100
32
4
(1)
0.5t
0.5t
1.0t
CLCL
CLCL
Max
AVCC - 0.5
CLCL
V
16
V
REF
Max
CC
+5
+5
V
511
2.8
-50
+ 0.3
CC
/Gain
(2)
(2)
(1)
Unit
Units
MHz
LSB
kHz
MΩ
kΩ
ns
V
V
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