ATMEGA8515L-8AU Atmel, ATMEGA8515L-8AU Datasheet - Page 199

• Manufacturer Part Number: ATMEGA8515L-8AU
• Description: IC AVR MCU 8K 8MHZ 3V 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8515L-8AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: ATMEGA8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: SPI, USART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 35
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Minimum Operating Temperature: - 40 C
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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