ATMEGA64-16AI Atmel, ATMEGA64-16AI Datasheet - Page 30

• Manufacturer Part Number: ATMEGA64-16AI
• Description: IC AVR MCU 64K 16MHZ IND 64-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA64-16AI

• 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-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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
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