ATTINY85-15ST1 Atmel, ATTINY85-15ST1 Datasheet - Page 16
ATTINY85-15ST1
Manufacturer Part Number
ATTINY85-15ST1
Description
MCU AVR 8K FLASH 15MHZ 8-SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY25-15MZ.pdf
(196 pages)
Specifications of ATTINY85-15ST1
Package / Case
8-SOIC (3.9mm Width)
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 105°C
Speed
16MHz
Number Of I /o
6
Eeprom Size
512 x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
512 x 8
Program Memory Size
8KB (8K x 8)
Data Converters
A/D 4x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
USI
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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5.3.2
5.3.3
5.3.4
5.3.5
16
ATtiny25/45/85
EEPROM Address Register High – EEARH
EEPROM Address Register – EEARL
EEPROM Data Register – EEDR
EEPROM Control Register – EECR
• Bit 7..1 – Res6..0: Reserved Bits
These bits are reserved for future use and will always read as 0 in ATtiny25/45/85.
• Bits 0 – EEAR8: EEPROM Address
The EEPROM Address Register – EEARH – specifies the high EEPROM address in the
128/256/512 bytes EEPROM space. The EEPROM data bytes are addressed linearly between 0
and 127/255/511. The initial value of EEAR is undefined. A proper value must be written before
the EEPROM may be accessed.
• Bits 7..0 – EEAR7..0: EEPROM Address
The EEPROM Address Register – EEARL – specifies the low EEPROM address in the
128/256/512 bytes EEPROM space. The EEPROM data bytes are addressed linearly between 0
and 127/255/511. The initial value of EEAR is undefined. A proper value must 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 ATtiny25/45/85. For compatibility
with future AVR devices, always write this bit to zero. After reading, mask out this bit.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
EEAR7
EEDR7
R/W
R
R
X
X
X
R
7
7
7
7
–
0
-
EEAR6
EEDR6
R/W
R
R
X
6
X
6
6
X
R
6
–
0
-
EEAR5
EEDR5
EEPM1
R/W
R/W
R/W
R
X
5
X
X
5
5
5
X
-
EEAR4
EEDR4
EEPM0
R/W
R/W
R/W
X
R
X
4
X
X
4
4
4
-
EEAR3
EEDR3
EERIE
R/W
R/W
R/W
X
R
3
3
X
3
X
3
0
-
EEAR2
EEDR2
EEMPE
R/W
R/W
R/W
2
X
R
X
X
2
2
2
0
-
EEAR1
EEDR1
EEPE
R/W
R/W
R/W
X
R
1
1
X
1
X
1
X
-
EEAR0
EEAR8
EEDR0
EERE
R/W
R/W
R/W
R/W
0
X
X
X
0
0
0
0
7598H–AVR–07/09
EEARL
EEARH
EEDR
EECR
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