ATTINY2313A-SUR Atmel, ATTINY2313A-SUR Datasheet - Page 179
ATTINY2313A-SUR
Manufacturer Part Number
ATTINY2313A-SUR
Description
MCU AVR 2KB FLASH 20MHZ 20SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY2313A-MU.pdf
(270 pages)
Specifications of ATTINY2313A-SUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
18
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)
1.8 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
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20.2
8246A–AVR–11/09
Fuse Bits
The ATtiny2313A/4313 has three Fuse bytes.
briefly the functionality of all the fuses and how they are mapped into the Fuse bytes. Note that
the fuses are read as logical zero, “0”, if they are programmed.
Table 20-3.
Note:
Table 20-4.
Notes:
Fuse Extended
Byte
SELFPRGEN
Fuse High Byte
DWEN
EESAVE
SPIEN
WDTON
BODLEVEL2
BODLEVEL1
BODLEVEL0
RSTDISBL
(1)
(3)
1. Enables SPM instruction. See
1. The SPIEN Fuse is not accessible in serial programming mode.
2. See
3. Never ship a product with the DWEN Fuse programmed regardless of the setting of Lock bits.
4. See
5. See
(2)
(5)
A programmed DWEN Fuse enables some parts of the clock system to be running in all sleep
modes. This may increase the power consumption.
(4)
(4)
(4)
(1)
Fuse Extended Byte
Fuse High Byte
“WDTCSR – Watchdog Timer Control and Status Register” on page 44
Table 21-5 on page 198
“Alternate Functions of Port A” on page 61
Bit
No
Bit
No
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Description
–
–
–
–
–
–
–
Self Programming Enable
Description
debugWIRE Enable
EEPROM memory is preserved
through the Chip Erase
Enable Serial Program and Data
Downloading
Watchdog Timer always on
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
External Reset disable
for BODLEVEL Fuse decoding.
“Self-Programming the Flash” on page
Table
20-3,
for description of RSTDISBL Fuse.
Table 20-4
Default Value
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
Default Value
1 (unprogrammed)
1 (unprogrammed, EEPROM
not preserved)
0 (programmed, SPI prog.
enabled)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
and
172.
Table 20-5
for details.
describe
179
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