ATMEGA128A-MNR Atmel, ATMEGA128A-MNR Datasheet - Page 336
ATMEGA128A-MNR
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
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8151H–AVR–02/11
Figure 27-12. External Memory Timing (SRWn1 = 1, SRWn0 = 1)
The ALE pulse in the last period (T4-T7) is only present if the next instruction accesses the RAM
(internal or external).
System Clock (CLK
DA7:0 (XMBK = 0)
DA7:0
A15:8
CPU
ALE
WR
RD
)
Prev. addr.
Prev. data
T1
1
Address
Address
4
2
5
T2
6
3a
3b
XX
7
8
13
10
T3
Data
Address
12
Data
16
15
T4
9
T5
()
11
ATmega128A
T6
14
T7
336
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