ATMEGA64-16MJ Atmel, ATMEGA64-16MJ Datasheet - Page 339

• Manufacturer Part Number: ATMEGA64-16MJ
• Description: IC MCU AVR 64K 5V 16MHZ 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64-16MJ

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2490Q–AVR–06/10
Figure 161. External Memory Timing (SRWn1 = 1, SRWn0 = 0)
Figure 162. External Memory Timing (SRWn1 = 1, SRWn0 = 1)
Note:
System Clock (CLK
System Clock (CLK
DA7:0 (XMBK = 0)
DA7:0 (XMBK = 0)
1. The ALE pulse in the last period (T4-T7) is only present if the next instruction accesses the
RAM (internal or external).
DA7:0
A15:8
CPU
DA7:0
ALE
A15:8
WR
RD
CPU
ALE
WR
RD
)
)
Prev. addr.
Prev. data
Prev. addr.
Prev. data
T1
T1
1
Address
Address
4
2
1
5
T2
6
Address
Address
3a
3b
4
2
XX
7
5
8
T2
6
13
3a
3b
XX
10
7
8
13
T3
10
T3
Address
Data
12
Data
16
15
9
T4
Data
Address
12
Data
16
15
T4
9
T5
(1)
11
T5
ATmega64(L)
T6
11
14
T6
14
T7
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