ATmega8515 Atmel Corporation, ATmega8515 Datasheet - Page 202
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ATmega8515
Manufacturer Part Number
ATmega8515
Description
Manufacturer
Atmel Corporation
Specifications of ATmega8515
Flash (kbytes)
8 Kbytes
Pin Count
44
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
35
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
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
2
Output Compare Channels
3
Input Capture Channels
1
Pwm Channels
3
32khz Rtc
No
Calibrated Rc Oscillator
Yes
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External Data Memory Timing
Table 98. External Data Memory Characteristics, 4.5 - 5.5 Volts, No Wait-state
Notes:
Table 99. External Data Memory Characteristics, 4.5 - 5.5 Volts, 1 Cycle Wait-state
202
0
1
2
3a
3b
4
5
6
7
8
9
10
11
12
13
14
15
16
0
10
12
15
16
Symbol
1/t
t
t
t
t
RLDV
RLRH
DVWH
WLWH
Symbol
1/t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
LHLL
AVLL
LLAX_ST
LLAX_LD
AVLLC
AVRL
AVWL
LLWL
LLRL
DVRH
RLDV
RHDX
RLRH
DVWL
WHDX
DVWH
WLWH
1. This assumes 50% clock duty cycle. The half period is actually the high time of the external clock, XTAL1.
2. This assumes 50% clock duty cycle. The half period is actually the low time of the external clock, XTAL1.
CLCL
CLCL
ATmega8515(L)
Parameter
Oscillator Frequency
Read Low to Data Valid
RD Pulse Width
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
Data Setup to WR Low
Data Hold After WR High
Data Valid to WR High
WR Pulse Width
Min
240
240
240
8 MHz Oscillator
57.5
57.5
47.5
47.5
42.5
Min
8 MHz Oscillator
115
115
115
115
115
125
115
40
5
5
0
Max
67.5
67.5
75
Max
200
0.5t
0.5t
0.5t
0.5t
0.5t
1.0t
1.0t
1.0t
1.0t
1.0t
1.0t
1.0t
CLCL
CLCL
CLCL
CLCL
CLCL
Min
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
0.0
40
5
5
0
2.0t
2.0t
CLCL
Variable Oscillator
-15
-15
-20
2.0t
-5
-5
-10
-10
-10
-10
-10
-10
Min
CLCL
CLCL
0.0
(1)
(1)
(2)
(2)
(1)
Variable Oscillator
CLCL
-10
-10
0.5t
0.5t
1.0t
2.0t
CLCL
CLCL
Max
CLCL
16
Max
CLCL
16
+5
+5
-50
(2)
(2)
-50
2512K–AVR–01/10
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
MHz
ns
ns
ns
ns