ATTINY13-20SSI Atmel, ATTINY13-20SSI Datasheet - Page 103

• Manufacturer Part Number: ATTINY13-20SSI
• Description: IC MCU AVR 1K FLASH 20MHZ 8SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY13-20SSI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 1KB (512 x 16)
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Data Bus Width: 8 bit
• Data Ram Size: 64 B
• Interface Type: SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Connectivity: -
• Lead Free Status / Rohs Status: No
• Other names: ATTINY13-24SSI; ATTINY13-24SSI

17.2
2535J–AVR–08/10
Fuse Bytes
The ATtiny13 has two 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 17-3.
Notes:
Table 17-4.
Notes:
Fuse Bit
–
–
–
SELFPRGEN
DWEN
BODLEVEL1
BODLEVEL0
RSTDISBL
Fuse Bit
SPIEN
EESAVE
WDTON
CKDIV8
SUT1
SUT0
CKSEL1
CKSEL0
(4)
(4)
(1)
(2)
1. Enables SPM instruction. See
2. DWEN must be unprogrammed when lock Bit security is required.
3. See
4. See
1. The SPIEN fuse is not accessible in SPI Programming mode.
2. Programming this fues will disable the Watchdog Timer Interrupt. See
3. See
4. The default value of SUT1..0 results in maximum start-up time for the default clock source.
5. The default setting of CKSEL1..0 results in internal RC Oscillator @ 9.6 MHz. See
(3)
(2)
(5)
(5)
(4)
Memory Lock Bits” on page 102.
When programming the RSTDISBL fuse, High-voltage Serial programming has to be used to
change fuses to perform further programming.
page 37
See
on page 118
(3)
(3)
(1)
Fuse High Byte
Fuse Low Byte
“Alternate Functions of Port B” on page 54
Table 18-5 on page 119
“System Clock Prescaler” on page 26
Table 18-3 on page 118
for details.
for details.
Bit No
Bit No
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Description
–
–
–
Self Programming Enable
debugWire Enable
Brown-out Detector trigger level
Brown-out Detector trigger level
External Reset disable
Description
Enable Serial Programming and Data
Downloading
Preserve EEPROM memory through
Chip Erase
Watchdog Timer always on
Divide clock by 8
Select start-up time
Select start-up time
Select Clock source
Select Clock source
Table 17-3 on page 103
for BODLEVEL fuse decoding.
for details.
“Self-Programming the Flash” on page
for details.
for description of RSTDISBL and DWEN fuses.
and
Table 17-4 on page 103
See “Program And Data
Default Value
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
Default Value
0 (programmed)
(SPI prog. enabled)
1 (unprogrammed)
(memory not preserved)
1 (unprogrammed)
0 (programmed)
1 (unprogrammed)
0 (programmed)
1 (unprogrammed)
0 (programmed)
97.
“Watchdog Timer” on
Table 18-3
describe
103