ATMEGA8535-16AUR Atmel, ATMEGA8535-16AUR Datasheet - Page 253
ATMEGA8535-16AUR
Manufacturer Part Number
ATMEGA8535-16AUR
Description
MCU AVR 8K FLASH 16MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA8535L-8AU.pdf
(321 pages)
Specifications of ATMEGA8535-16AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
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
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Manufacturer
Quantity
Price
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Data Polling EEPROM
2502K–AVR–10/06
When a new byte has been written and is being programmed into EEPROM, reading the
address location being programmed will give the value 0xFF. 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 0xFF, but the
user should have the following in mind: As a chip erased device contains 0xFF in all
locations, programming of addresses that are meant to contain 0xFF, 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 0xFF, and the user will have to wait
at least t
value.
Table 108. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Figure 125. Serial Programming Waveforms
Symbol
t
t
t
t
SERIAL DATA OUTPUT
WD_FLASH
WD_EEPROM
WD_ERASE
WD_FUSE
SERIAL CLOCK INPUT
SERIAL DATA INPUT
WD_EEPROM
SAMPLE
(MOSI)
(MISO)
(SCK)
before programming the next byte. See Table 108 for t
MSB
MSB
Minimum Wait Delay
4.5 ms
9.0 ms
9.0 ms
4.5 ms
ATmega8535(L)
LSB
LSB
WD_EEPROM
253
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