ATMEGA8515L-8MUR Atmel, ATMEGA8515L-8MUR Datasheet - Page 195
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ATMEGA8515L-8MUR
Manufacturer Part Number
ATMEGA8515L-8MUR
Description
MCU AVR 8KB FLASH 8MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA8515L-8MC.pdf
(257 pages)
Specifications of ATMEGA8515L-8MUR
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
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
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- Download datasheet (2Mb)
Data Polling EEPROM
2512K–AVR–01/10
When a new byte has been written and is being programmed into EEPROM, reading the
address location being programmed will give the value $FF. At the time the device is
ready for a new byte, the programmed value will read correctly. This is used to deter-
mine when the next byte can be written. This will not work for the value $FF, but the user
should have the following in mind: As a chip erased device contains $FF in all locations,
programming of addresses that are meant to contain $FF, can be skipped. This does
not apply if the EEPROM is reprogrammed without chip-erasing the device. In this case,
data polling cannot be used for the value $FF, and the user will have to wait at least
t
Table 93. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Figure 85. Serial Programming Waveforms
WD_EEPROM
Symbol
t
t
t
t
SERIAL DATA OUTPUT
WD_FUSE
WD_FLASH
WD_EEPROM
WD_ERASE
SERIAL CLOCK INPUT
SERIAL DATA INPUT
before programming the next byte. See Table 93 for t
SAMPLE
(MOSI)
(MISO)
(SCK)
MSB
MSB
Minimum Wait Delay
4.5 ms
4.5 ms
9.0 ms
9.0 ms
ATmega8515(L)
WD_EEPROM
value.
LSB
LSB
195
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