Datasheet
Table Of Contents
- Features
- Pin Configuration
- Description
- Architectural Overview
- General-purpose Register File
- ALU – Arithmetic Logic Unit
- Flash Program Memory
- Program and Data Addressing Modes
- Subroutine and Interrupt Hardware Stack
- EEPROM Data Memory
- Memory Access and Instruction Execution Timing
- I/O Memory
- Reset and Interrupt Handling
- ATtiny12 Internal Voltage Reference
- Interrupt Handling
- Sleep Modes for the ATtiny11
- Sleep Modes for the ATtiny12
- ATtiny12 Calibrated Internal RC Oscillator
- Timer/Counter0
- Watchdog Timer
- ATtiny12 EEPROM Read/Write Access
- Analog Comparator
- I/O Port B
- Memory Programming
- Program (and Data) Memory Lock Bits
- Fuse Bits in ATtiny11
- Fuse Bits in ATtiny12
- Signature Bytes
- Calibration Byte in ATtiny12
- Programming the Flash and EEPROM
- High-voltage Serial Programming
- High-voltage Serial Programming Algorithm
- High-voltage Serial Programming Characteristics
- Low-voltage Serial Downloading (ATtiny12 only)
- Low-voltage Serial Programming Characteristics
- Electrical Characteristics
- Register Summary ATtiny11
- Register Summary ATtiny12
- Instruction Set Summary
- Ordering Information
- Packaging Information
- Data Sheet Change Log for ATtiny11/12
- Table of Contents

57
ATtiny11/12
1006D–AVR–07/03
Electrical Characteristics
Absolute Maximum Ratings
Operating Temperature.................................. -55°C to +125°C
*NOTICE: Stresses beyond those ratings listed under
“Absolute Maximum Ratings” may cause perma-
nent damage to the device. This is a stress rating
only and functional operation of the device at
these or other conditions beyond those indicated
in the operational sections of this specification is
not implied. Exposure to absolute maximum rat-
ing conditions for extended periods may affect
device reliability.
Storage Temperature..................................... -65°C to +150°C
Voltage on any Pin except RESET
with respect to Ground ................................-1.0V to V
CC
+0.5V
Voltage on RESET with respect to Ground......-1.0V to +13.0V
Maximum Operating Voltage ............................................ 6.0V
DC Current per I/O Pin ............................................... 40.0 mA
DC Current V
CC
and GND Pins................................ 100.0 mA
DC Characteristics – Preliminary Data
T
A
= -40°C to 85°C, V
CC
= 2.7V to 5.5V for ATtiny11, V
CC
= 1.8V to 5.5V for ATtiny12 (Unless otherwise noted)
Symbol Parameter Condition Min Typ Max Units
V
IL
Input Low Voltage Except (XTAL) -0.5 0.3 V
CC
(1)
V
V
IL1
Input Low Voltage XTAL -0.5 0.1 V
CC
(1)
V
V
IH
Input High Voltage Except (XTAL, RESET) 0.6 V
CC
(2)
V
CC
+ 0.5 V
V
IH1
Input High Voltage XTAL 0.7 V
CC
(2)
V
CC
+ 0.5 V
V
IH2
Input High Voltage RESET 0.85 V
CC
(2)
V
CC
+ 0.5 V
V
OL
Output Low Voltage
(3)
Port B
I
OL
= 20 mA, V
CC
= 5V
I
OL
= 10 mA, V
CC
= 3V
0.6
0.5
V
V
V
OL
Output Low Voltage
PB5 (ATtiny12)
I
OL
= 12 mA, V
CC
= 5V
I
OL
= 6 mA, V
CC
= 3V
0.6
0.5
V
V
V
OH
Output High Voltage
(4)
Port B
I
OH
= -3 mA, V
CC
= 5V
I
OH
= -1.5 mA, V
CC
= 3V
4.3
2.3
V
V
I
IL
Input Leakage Current
I/O Pin
V
CC
= 5.5V, Pin Low
(Absolute value)
8.0 µA
I
IH
Input Leakage Current
I/O Pin
V
CC
= 5.5V, Pin High
(Absolute value)
8.0 µA
R
I/O
I/O Pin Pull-Up 35 122 kΩ