ATTINY13A-SUR Atmel, ATTINY13A-SUR Datasheet - Page 103
ATTINY13A-SUR
Manufacturer Part Number
ATTINY13A-SUR
Description
IC MCU AVR 1K FLASH 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY13A-SSH.pdf
(176 pages)
Specifications of ATTINY13A-SUR
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)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Processor Series
ATTINY13
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
64 B
Interface Type
SPI
Maximum Clock Frequency
20 MHz
Operating Supply Voltage
4.5 V to 5.5 V
Mounting Style
SMD/SMT
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Connectivity
-
Lead Free Status / Rohs Status
Details
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17. Memory Programming
17.1
8126E–AVR–07/10
Program And Data Memory Lock Bits
This section describes how ATtiny13A memories can be programmed.
ATtiny13A provides two lock bits which can be left unprogrammed (“1”) or can be programmed
(“0”) to obtain the additional security listed in
erased to “1” with the Chip Erase command, only.
Program memory can be read out via the debugWIRE interface when the DWEN fuse is pro-
grammed, even if the lock bits are set. Thus, when lock bit security is required, debugWIRE
should always be disabled by clearing the DWEN fuse.
Table 17-1.
Note:
Table 17-2.
Notes:
LB2
LB1
LB Mode
Lock Bit Byte
Memory Lock Bits
1
2
3
1. “1” means unprogrammed, “0” means programmed
1. Program fuse bits before lock bits. See section
2. “1” means unprogrammed, “0” means programmed
Lock Bit Byte
Lock Bit Protection Modes
LB2
1
1
0
(1) (2)
LB1
1
0
0
Bit No
7
6
5
4
3
2
1
0
Protection Type
No memory lock features enabled.
Further programming of the Flash and EEPROM is disabled in
High-voltage and Serial Programming mode. Fuse bits are
locked in both Serial and High-voltage Programming mode.
debugWire is disabled.
Further programming and verification of the Flash and
EEPROM is disabled in High-voltage and Serial Programming
mode. Fuse bits are locked in both Serial and High-voltage
Programming mode. debugWire is disabled.
Description
–
–
–
–
–
–
Lock bit
Lock bit
Table 17-2 on page
“Fuse Bytes” on page
Default Value
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
103. The lock bits can be
104.
(1)
103
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