ATTINY26-16MI Atmel, ATTINY26-16MI Datasheet - Page 117
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ATTINY26-16MI
Manufacturer Part Number
ATTINY26-16MI
Description
IC AVR MCU 2K 16MHZ IND 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY26-16MI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY26-16MI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 117 of 182
- Download datasheet (3Mb)
Programming the
Fuse High Bits
Programming the
Lock Bits
Reading the Fuse and
Lock Bits
1477K–AVR–08/10
The algorithm for programming the Fuse high bits is as follows (refer to “Programming the Flash”
on page 113 for details on Command and Data loading):
1. A: Load Command “0100 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
3. Set BS1 to “1” and BS2 to “0”. This selects high data byte.
4. Give WR a negative pulse and wait for RDY/BSY to go high.
5. Set BS1 to “0”. This selects low data byte.
Figure 62. Programming the Fuse Waveforms
The algorithm for programming the Lock bits is as follows (refer to “Programming the Flash” on
page 113 for details on Command and Data loading):
1. A: Load Command “0010 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs the Lock bit.
3. Give WR a negative pulse and wait for RDY/BSY to go high.
The Lock bits can only be cleared by executing Chip Erase.
The algorithm for reading the Fuse and Lock bits is as follows (refer to “Programming the Flash”
on page 113 for details on Command loading):
1. A: Load Command “0000 0100”.
2. Set OE to “0”, BS2 to “0”, and BS1 to “0”. The status of the Fuse Low bits can now be
3. Set OE to “0”, BS2 to “1”, and BS1 to “1”. The status of the Fuse High bits can now be
4. Set OE to “0”, BS2 to “0”, and BS1 to “1”. The status of the Lock bits can now be read at
5. Set OE to “1”.
read at DATA (“0” means programmed).
read at DATA (“0” means programmed).
DATA (“0” means programmed).
RESET +12V
PAGEL/BS1
RDY/BSY
XA1/BS2
XTAL1
DATA
XA0
WR
OE
$40
A
DATA
C
XX
Write Fuse Low Byte
$40
A
DATA
C
XX
Write Fuse High Byte
117
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