1
1006FS–AVR–06/07
Features
Utilizes the AVR
®
RISC Architecture
High-performance and Low-power 8-bit RISC Architecture
90 Powerful Instructions – Most Single Clock Cycle Execution
32 x 8 General Purpose Working Registers
Up to 8 MIPS Throughput at 8 MHz
Nonvolatile Program and Data Memory
1K Byte of Flash Program Memory
In-System Programmable (ATtiny12)
Endurance: 1,000 Write/Erase Cycles (ATtiny11/12)
64 Bytes of In-System Programmable EEPROM Data Memory for ATtiny12
Endurance: 100,000 Write/Erase Cycles
Programming Lock for Flash Program and EEPROM Data Security
Peripheral Features
Interrupt and Wake-up on Pin Change
One 8-bit Timer/Counter with Separate Prescaler
On-chip Analog Comparator
Programmable Watchdog Timer with On-chip Oscillator
Special Microcontroller Features
Low-power Idle and Power-down Modes
External and Internal Interrupt Sources
In-System Programmable via SPI Port (ATtiny12)
Enhanced Power-on Reset Circuit (ATtiny12)
Internal Calibrated RC Oscillator (ATtiny12)
Specification
Low-power, High-speed CMOS Process Technology
Fully Static Operation
Power Consumption at 4 MHz, 3V, 25°C
Active: 2.2 mA
Idle Mode: 0.5 mA
Power-down Mode: <1 µA
Packages
8-pin PDIP and SOIC
Operating Voltages
1.8 - 5.5V for ATtiny12V-1
2.7 - 5.5V for ATtiny11L-2 and ATtiny12L-4
4.0 - 5.5V for ATtiny11-6 and ATtiny12-8
Speed Grades
0 - 1.2 MHz (ATtiny12V-1)
0 - 2 MHz (ATtiny11L-2)
0 - 4 MHz (ATtiny12L-4)
0 - 6 MHz (ATtiny11-6)
0 - 8 MHz (ATtiny12-8)
Pin Configuration
1
2
3
4
8
7
6
5
(RESET) PB5
(XTAL1) PB3
(XTAL2) PB4
GND
VCC
PB2 (T0)
PB1 (INT0/AIN1)
PB0 (AIN0)
ATtiny11
PDIP/SOIC
1
2
3
4
8
7
6
5
(RESET) PB5
(XTAL1) PB3
(XTAL2) PB4
GND
VCC
PB2 (SCK/T0)
PB1 (MISO/INT0/AIN1)
PB0 (MOSI/AIN0)
ATtiny12
PDIP/SOIC
8-bit
Microcontroller
with 1K Byte
Flash
ATtiny11
ATtiny12
Summary
Not recommended for new
design
Rev. 1006FS–AVR–06/07
Note: This is a summary document. A complete document
is available on our Web site at www.atmel.com.
2
ATtiny11/12
1006FS–AVR–06/07
Overview The ATtiny11/12 is a low-power CMOS 8-bit microcontroller based on the AVR RISC
architecture. By executing powerful instructions in a single clock cycle, the ATtiny11/12
achieves throughputs approaching 1 MIPS per MHz, allowing the system designer to
optimize power consumption versus processing speed.
The AVR core combines a rich instruction set with 32 general-purpose working regis-
ters. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU),
allowing two independent registers to be accessed in one single instruction executed in
one clock cycle. The resulting architecture is more code efficient while achieving
throughputs up to ten times faster than conventional CISC microcontrollers.
The ATtiny11/12 AVR is supported with a full suite of program and system development
tools including: macro assemblers, program debugger/simulators, in-circuit emulators,
and evaluation kits.
Table 1. Parts Description
Device Flash EEPROM Register Voltage Range Frequency
ATtiny11L 1K - 32 2.7 - 5.5V 0-2 MHz
ATtiny11 1K - 32 4.0 - 5.5V 0-6 MHz
ATtiny12V 1K 64 B 32 1.8 - 5.5V 0-1.2 MHz
ATtiny12L 1K 64 B 32 2.7 - 5.5V 0-4 MHz
ATtiny12 1K 64 B 32 4.0 - 5.5V 0-8 MHz
3
ATtiny11/12
1006FS–AVR–06/07
ATtiny11 Block Diagram See Figure 1 on page 3. The ATtiny11 provides the following features: 1K bytes of
Flash, up to five general-purpose I/O lines, one input line, 32 general-purpose working
registers, an 8-bit timer/counter, internal and external interrupts, programmable Watch-
dog Timer with internal oscillator, and two software-selectable power-saving modes.
The Idle Mode stops the CPU while allowing the timer/counters and interrupt system to
continue functioning. The Power-down Mode saves the register contents but freezes the
oscillator, disabling all other chip functions until the next interrupt or hardware reset. The
wake-up or interrupt on pin change features enable the ATtiny11 to be highly responsive
to external events, still featuring the lowest power consumption while in the power-down
modes.
The device is manufactured using Atmel’s high-density nonvolatile memory technology.
By combining an RISC 8-bit CPU with Flash on a monolithic chip, the Atmel ATtiny11 is
a powerful microcontroller that provides a highly-flexible and cost-effective solution to
many embedded control applications.
Figure 1. The ATtiny11 Block Diagram
PROGRAM
COUNTER
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
STACK
POINTER
PROGRAM
FLASH
HARDWARE
STACK
MCU CONTROL
REGISTER
GENERAL-
PURPOSE
REGISTERS
INSTRUCTION
REGISTER
TIMER/
COUNTER
INSTRUCTION
DECODER
DATA DIR.
REG. PORTB
DATA REGISTER
PORTB
PROGRAMMING
LOGIC
OSCILLATORS
TIMING AND
CONTROL
INTERRUPT
UNIT
MCU STATUS
REGISTER
STATUS
REGISTER
ALU
PORTB DRIVERS
PB0-PB5
VCC
GND
CONTROL
LINES
+
-
ANALOG
COMP
ARATOR
8-BIT DATA BUS
Z

ATTINY12-8SC

Mfr. #:
Manufacturer:
Microchip Technology / Atmel
Description:
8-bit Microcontrollers - MCU AVR 1K FLASH 64B EE 5V 8MHZ
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union