ATMEGA128A-MNR Atmel, ATMEGA128A-MNR Datasheet - Page 331

• Manufacturer Part Number: ATMEGA128A-MNR
• Description: IC MCU AVR 128K FLASH 64VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-MNR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP
• Core: AVR8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 27-8.
Notes:
27.10 External Data Memory Timing
Table 27-9.
Notes:
8151H–AVR–02/11
0
1
2
3a
3b
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
R
R
V
REF
AIN
INT
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
1. Values are guidelines only.
2. Minimum for AVCC is 2.7V.
3. Maximum for AVCC is 5.5V.
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
Internal Voltage Reference
Reference Input Resistance
Analog Input Resistance
ADC Characteristics, Differential Channels (Continued)
External Data Memory Characteristics, 4.5V - 5.5V, 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
8MHz Oscillator
57.5
57.5
47.5
47.5
42.5
Min
115
115
115
115
115
125
115
40
5
5
0
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
1.0t
CLCL
CLCL
CLCL
CLCL
CLCL
Min
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
0.0
Min
40
5
5
0
2.3
CLCL
55
Variable Oscillator
-15
-15
-20
-5
-5
-10
-10
-10
-10
-10
-10
(1)
(1)
(1)
(2)
(2)
(1)
Typ
2.56
100
32
ATmega128A
(1)
0.5t
0.5t
1.0t
CLCL
CLCL
Max
CLCL
16
Max
+5
+5
2.7
-50
(2)
(2)
(1)
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units
MΩ
kΩ
V
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