ATMEGA8515L-8MU Atmel, ATMEGA8515L-8MU Datasheet - Page 37
ATMEGA8515L-8MU
Manufacturer Part Number
ATMEGA8515L-8MU
Description
IC AVR MCU 8K 8MHZ 3V 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8515L-8MU
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-VQFN Exposed Pad
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
ATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA8515L-8MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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Low-frequency Crystal
Oscillator
2512K–AVR–01/10
Table 8. Start-up Times for the Crystal Oscillator Clock Selection (Continued)
Notes:
To use a 32.768 kHz watch crystal as the clock source for the device, the Low-fre-
quency Crystal Oscillator must be selected by setting the CKSEL Fuses to “1001”. The
crystal should be connected as shown in Figure 19. By programming the CKOPT Fuse,
the user can enable internal capacitors on XTAL1 and XTAL2, thereby removing the
need for external capacitors. The internal capacitors have a nominal value of 36 pF.
When this Oscillator is selected, start-up times are determined by the SUT Fuses as
shown in Table 9.
Table 9. Start-up Times for the Low-frequency Crystal Oscillator Clock Selection
Note:
CKSEL0
SUT1..0
00
01
10
11
1
1
1
1. These options should only be used when not operating close to the maximum fre-
2. These options are intended for use with ceramic resonators and will ensure fre-
1. These options should only be used if frequency stability at start-up is not important
quency of the device, and only if frequency stability at start-up is not important for the
application. These options are not suitable for crystals.
quency stability at start-up. They can also be used with crystals when not operating
close to the maximum frequency of the device, and if frequency stability at start-up is
not important for the application.
for the application.
SUT1..0
from Power-down
Start-up Time
01
10
11
1K CK
1K CK
32K CK
from Power-down
(1)
(1)
Start-up Time
16K CK
16K CK
16K CK
Additional Delay from
Reset (V
4.1 ms
65 ms
65 ms
Additional Delay from
CC
Reset (V
Reserved
= 5.0V)
4.1 ms
65 ms
CC
–
= 5.0V)
Recommended Usage
enabled
ATmega8515(L)
Fast rising power or BOD
Slowly rising power
Stable frequency at start-up
Recommended
Usage
Crystal Oscillator,
BOD enabled
Crystal Oscillator, fast
rising power
Crystal Oscillator,
slowly rising power
37
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