ATmega64 Atmel Corporation, ATmega64 Datasheet - Page 336

• Manufacturer Part Number: ATmega64
• Manufacturer: Atmel Corporation

Specifications of ATmega64

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 8
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 8
• Input Capture Channels: 2
• Pwm Channels: 7
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Table 139. External Data Memory Characteristics, 4.5V - 5.5V, SRWn1 = 1, SRWn0 = 0
Table 140. External Data Memory Characteristics, 4.5V - 5.5V, SRWn1 = 1, SRWn0 = 1
Table 141. External Data Memory Characteristics, 2.7V - 5.5V, No Wait-state
2490Q–AVR–06/10
0
10
12
15
16
0
10
12
14
15
16
0
1
2
3a
3b
4
5
6
7
8
9
10
11
12
Symbol
1/t
t
t
t
t
Symbol
1/t
t
t
t
t
t
Symbol
1/t
t
t
t
t
t
t
t
t
t
t
t
t
t
RLDV
RLRH
DVWH
WLWH
RLDV
RLRH
WHDX
DVWH
WLWH
LHLL
AVLL
LLAX_ST
LLAX_LD
AVLLC
AVRL
AVWL
LLWL
LLRL
DVRH
RLDV
RHDX
RLRH
CLCL
CLCL
CLCL
Parameter
Oscillator Frequency
Read Low to Data Valid
RD Pulse Width
Data Valid to WR High
WR Pulse Width
Parameter
Oscillator Frequency
Read Low to Data Valid
RD Pulse Width
Data Hold After WR High
Data Valid to WR High
WR Pulse Width
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
Min
365
375
365
Min
365
240
375
365
Min
235
115
115
235
235
115
115
235
45
5
5
0
4 MHz Oscillator
4 MHz Oscillator
4 MHz Oscillator
Max
Max
Max
325
325
130
130
190
0.5t
0.5t
0.5t
0.5t
3.0t
3.0t
3.0t
2.0t
3.0t
1.0t
1.0t
1.0t
3.0t
3.0t
t
CLCL
CLCL
CLCL
CLCL
CLCL
Min
Min
Min
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
0.0
0.0
0.0
45
5
5
0
Variable Oscillator
Variable Oscillator
Variable Oscillator
CLCL
CLCL
-15
-10
-10
-10
-10
-10
-10
-10
-10
-10
-15
-15
-15
(1)
(1)
(2)
(2)
ATmega64(L)
0.5t
0.5t
3.0t
3.0t
1.0t
CLCL
CLCL
Max
Max
Max
CLCL
CLCL
CLCL
16
16
8
+5
+5
-50
-50
-60
(2)
(2)
MHz
MHz
MHz
Unit
Unit
Unit
ns
ns
ns
336