ATTINY861A-XU Atmel, ATTINY861A-XU Datasheet - Page 183

• Manufacturer Part Number: ATTINY861A-XU
• Description: Microcontrollers (MCU) 8K Flash;125B EEPROM 128B SRAM;16 IO Pins
• Manufacturer: Atmel

Specifications of ATTINY861A-XU

• Core: RISC
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 8 KB
• Data Ram Size: 512 B
• Interface Type: SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 16
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-20
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Details

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
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