ATtiny2313 Atmel Corporation, ATtiny2313 Datasheet - Page 159

• Manufacturer Part Number: ATtiny2313
• Manufacturer: Atmel Corporation

Specifications of ATtiny2313

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 20 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 18
• Ext Interrupts: 18
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

Fuse Bits
2543L–AVR–08/10
The ATtiny2313 has three Fuse bytes.
all the fuses and how they are mapped into the Fuse bytes. Note that the fuses are read as logi-
cal zero, “0”, if they are programmed.
Table 66. Fuse Extended Byte
Notes:
Table 67. Fuse High Byte
Note:
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)
“Watchdog Timer Control Register - WDTCSR” on page 42
Table 16 on page 35
“Alternate Functions of Port A” on page 53
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.
Table 67
“Self-Programming the Flash” on page
and
Table 68
for description of RSTDISBL Fuse.
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)
describe briefly the functionality of
for details.
153.
159