ATTINY461A-XUR Atmel, ATTINY461A-XUR Datasheet - Page 183
ATTINY461A-XUR
Manufacturer Part Number
ATTINY461A-XUR
Description
MCU AVR 4K FLASH 20MHZ 20TSSOP
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY461A-MU.pdf
(292 pages)
Specifications of ATTINY461A-XUR
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
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 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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