ATMEGA64L-8MQR Atmel, ATMEGA64L-8MQR Datasheet - Page 30
ATMEGA64L-8MQR
Manufacturer Part Number
ATMEGA64L-8MQR
Description
MCU AVR 64KB FLASH 8MHZ 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA64L-8MQR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K 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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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2490Q–AVR–06/10
Figure 13. External Data Memory Cycles without Wait State
(SRWn1 = 0 and SRWn0 =0)
Note:
Figure 14. External Data Memory Cycles with SRWn1 = 0 and SRWn0 = 1
Note:
System Clock (CLK
System Clock (CLK
1. SRWn1 = SRW11 (upper sector) or SRW01 (lower sector), SRWn0 = SRW10 (upper sector) or
1. SRWn1 = SRW11 (upper sector) or SRW01 (lower sector), SRWn0 = SRW10 (upper sector) or
DA7:0 (XMBK = 0)
DA7:0 (XMBK = 1)
DA7:0 (XMBK = 0)
DA7:0 (XMBK = 1)
SRW00 (lower sector).
The ALE pulse in period T4 is only present if the next instruction accesses the RAM (internal
or external).
SRW00 (lower sector).
The ALE pulse in period T5 is only present if the next instruction accesses the RAM (internal
or external).
DA7:0
A15:8
CPU
ALE
DA7:0
WR
A15:8
RD
CPU
ALE
WR
)
RD
)
Prev. Addr.
Prev. Data
Prev. Data
Prev. Data
Prev. addr.
Prev. data
Prev. data
Prev. data
T1
T1
Address
Address
Address
T2
Address
Address
Address
XX
T2
XX
XXXXX
Address
T3
Data
Data
Data
Address
(1)
T3
Data
Data
Data
T4
ATmega64(L)
XXXXXXXX
(1)
T4
T5
30
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