ATTINY861V-10SUR Atmel, ATTINY861V-10SUR Datasheet - Page 21
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ATTINY861V-10SUR
Manufacturer Part Number
ATTINY861V-10SUR
Description
IC MCU AVR 8K FLASH 10MHZ 20SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY861V-10SUR
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
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)
1.8 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY861V-10SUR
Manufacturer:
Atmel
Quantity:
1 499
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5.5.2
5.5.3
5.5.4
2588E–AVR–08/10
EEARL – EEPROM Address Register
EEDR – EEPROM Data Register
EECR – EEPROM Control Register
• Bit 7 – EEAR7: EEPROM Address
This is the most significant EEPROM address bit of ATtiny461. In devices with less EEPROM,
i.e. ATtiny261, this bit is reserved and will always read zero. The initial value of the EEPROM
Address Register (EEAR) is undefined and a proper value must therefore be written before the
EEPROM is accessed.
• Bits 6:0 – EEAR6:0: EEPROM Address
These are the (low) bits of the EEPROM Address Register. The EEPROM data bytes are
addressed linearly in the range 0
proper value must be therefore be written before the EEPROM may be accessed.
• Bits 7:0 – EEDR7:0: EEPROM Data
For the EEPROM write operation the EEDR Register contains the data to be written to the
EEPROM in the address given by the EEAR Register. For the EEPROM read operation, the
EEDR contains the data read out from the EEPROM at the address given by EEAR.
• Bit 7 – Res: Reserved Bit
This bit is reserved for future use and will always read as 0 in ATtiny261/461/861. For compati-
bility with future AVR devices, always write this bit to zero. After reading, mask out this bit.
• Bit 6 – Res: Reserved Bit
This bit is reserved in the ATtiny261/461/861 and will always read as zero.
• Bits 5, 4 – EEPM1 and EEPM0: EEPROM Programming Mode Bits
The EEPROM Programming mode bits setting defines which programming action that will be
triggered when writing EEPE. It is possible to program data in one atomic operation (erase the
Bit
0x1E (0x3E)
Read/Write
Initial Value
Bit
0x1D (0x3D)
Read/Write
Initial Value
Bit
0x1C (0x3C)
Read/Write
Initial Value
EEAR7
EEDR7
R/W
R/W
X/0
R
7
0
7
–
0
7
EEAR6
EEDR6
R/W
R/W
R
X
6
0
6
–
0
6
EEAR5
EEDR5
EEPM1
...
R/W
R/W
R/W
X
5
0
5
X
5
128/256/512. The initial value of EEAR is undefined and a
EEAR4
EEDR4
EEPM0
R/W
R/W
R/W
X
4
0
4
X
4
EEAR3
EEDR3
EERIE
R/W
R/W
R/W
X
3
0
3
0
3
EEMPE
EEAR2
EEDR2
R/W
R/W
R/W
X
2
0
2
0
2
EEAR1
EEDR1
EEPE
R/W
R/W
R/W
X
1
0
1
X
1
EEAR0
EEDR0
EERE
R/W
R/W
R/W
X
0
0
0
0
0
EEDR
EECR
EEARL
21
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