ATmega8515 Atmel Corporation, ATmega8515 Datasheet - Page 199

• Manufacturer Part Number: ATmega8515
• 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

External Clock Drive
Waveforms
External Clock Drive
2512K–AVR–01/10
Figure 86. External Clock Drive Waveforms
Table 95. External Clock Drive
Note:
Table 96. External RC Oscillator, Typical Frequencies (V
Notes:
Symbol
1/t
t
t
t
t
t
Δ
CLCL
CHCX
CLCX
CLCH
CHCL
t
CLCL
CLCL
1. Refer to “External Clock” on page 40 for details.
1. R should be in the range 3 kΩ - 100 kΩ, and C should be at least 20 pF. The C values
2. The frequency will vary with package type and board layout.
given in the table includes pin capacitance. This will vary with package type.
V
R [kΩ]
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period from
one clock cycle to the
next
IL1
33
10
V
(1)
IH1
(1)
V
Min
125
50
50
0
CC
= 2.7 -
C [pF]
22
22
5.5
Max
1.6
1.6
8
2
V
ATmega8515(L)
CC
62.5
V
Min
= 5V)
25
25
0
CC
= 4.5 -
5.5
Max
650 kHz
2.0 MHz
0.5
0.5
16
2
V
f
(2)
Units
MHz
ns
ns
ns
μs
μs
%
199