ATTINY861A-MUR Atmel, ATTINY861A-MUR Datasheet - Page 183
ATTINY861A-MUR
Manufacturer Part Number
ATTINY861A-MUR
Description
MCU AVR 8KB FLASH 20MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY461A-MU.pdf
(292 pages)
Specifications of ATTINY861A-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, 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
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18.7.14
18.7.15
8197B–AVR–01/10
Reading the Signature Bytes
Reading the Calibration Byte
Figure 18-8. Mapping Between BS1, BS2 and the Fuse and Lock Bits During Read
The algorithm for reading the Signature bytes is as follows (refer to
page 177
The algorithm for reading the Calibration byte is as follows (refer to
page 177
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte (0x00 - 0x02).
3. Set OE to “0”, and BS to “0”. The selected Signature byte can now be read at DATA.
4. Set OE to “1”.
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte, 0x00.
3. Set OE to “0”, and BS1 to “1”. The Calibration byte can now be read at DATA.
4. Set OE to “1”.
Fuse Low Byte
Extended Fuse Byte
Fuse High Byte
Lock Bits
for details on Command and Address loading):
for details on Command and Address loading):
BS2
BS2
0
1
0
1
BS1
“Programming the Flash” on
“Programming the Flash” on
0
1
DATA
183
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