ATMEGA8515-16JJ Atmel, ATMEGA8515-16JJ Datasheet - Page 181
![IC MCU AVR 8K 5V 16MHZ 44-PLCC](/photos/6/70/67043/453-44-plcc_sml.jpg)
ATMEGA8515-16JJ
Manufacturer Part Number
ATMEGA8515-16JJ
Description
IC MCU AVR 8K 5V 16MHZ 44-PLCC
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8515-16JJ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
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Latching of Fuses
Signature Bytes
Calibration Byte
2512K–AVR–01/10
Table 84. Fuse Low Byte
Notes:
The status of the Fuse bits is not affected by Chip Erase. Note that the Fuse bits are
locked if Lock bit1 (LB1) is programmed. Program the Fuse bits before programming the
Lock bits.
The fuse values are latched when the device enters Programming mode and changes of
the fuse values will have no effect until the part leaves Programming mode. This does
not apply to the EESAVE Fuse which will take effect once it is programmed. The fuses
are also latched on Power-up in Normal mode.
All Atmel microcontrollers have a 3-byte signature code which identifies the device. This
code can be read in both Serial and Parallel mode, also when the device is locked. The
three bytes reside in a separate address space.
For the ATmega8515 the signature bytes are:
1. $000: $1E (indicates manufactured by Atmel).
2. $001: $93 (indicates 8KB Flash memory).
3. $002: $06 (indicates ATmega8515 device when $001 is $93).
The ATmega8515 stores four different calibration values for the internal RC Oscillator.
These bytes resides in the signature row high byte of the addresses 0x000, 0x0001,
0x0002, and 0x0003 for 1, 2, 4, and 8 MHz respectively. During Reset, the 1 MHz value
is automatically loaded into the OSCCAL Register. If other frequencies are used, the
calibration value has to be loaded manually, see “Oscillator Calibration Register – OSC-
CAL” on page 39 for details.
Fuse Low Byte
BODLEVEL
BODEN
SUT1
SUT0
CKSEL3
CKSEL2
CKSEL1
CKSEL0
1. The default value of SUT1..0 results in maximum start-up time. See Table 13 on page
2. The default setting of CKSEL3..0 results in internal RC Oscillator @ 1 MHz. See
39 for details.
Table 5 on page 35 for details.
Bit no
6
5
4
7
3
2
1
0
Description
Brown-out Detector trigger
level
Brown-out Detector enable
Select start-up time
Select start-up time
Select Clock source
Select Clock source
Select Clock source
Select Clock source
Default value
1 (unprogrammed)
1 (unprogrammed, BOD
disabled)
1 (unprogrammed)
0 (programmed)
0 (programmed)
0 (programmed)
0 (programmed)
1 (unprogrammed)
ATmega8515(L)
(1)
(2)
(2)
(2)
(1)
(2)
181
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