ATtiny4 Atmel Corporation, ATtiny4 Datasheet - Page 3

• Manufacturer Part Number: ATtiny4
• Manufacturer: Atmel Corporation

Specifications of ATtiny4

• Flash (kbytes): 0.5 Kbytes
• Pin Count: 6
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 1
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 4
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.03
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 1
• Output Compare Channels: 2
• Input Capture Channels: 1
• Pwm Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

2. Overview
8127E–AVR–11/11
ATtiny4/5/9/10 are low-power CMOS 8-bit microcontrollers based on the compact AVR
enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
ATtiny4/5/9/10 achieve throughputs approaching 1 MIPS per MHz, allowing the system designer
to optimize power consumption versus processing speed.
Figure 2-1.
The AVR core combines a rich instruction set with 16 general purpose working registers and
system registers. All 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 compact and code efficient while achieving throughputs up to ten
times faster than conventional CISC microcontrollers.
PROGRAMMING
INSTRUCTION
INSTRUCTION
INTERFACE
PROGRAM
REGISTER
DECODER
CONTROL
DATA REGISTER
FLASH
LOGIC
LINES
ISP
PORT B
Block Diagram
V
DRIVERS
PORT B
CC
PB3:0
REG. PORT B
REGISTERS
DIRECTION
PROGRAM
REGISTER
COUNTER
PURPOSE
GENERAL
POINTER
STATUS
STACK
SRAM
ALU
X
Y
Z
GND
8-BIT DATA BUS
COMPARATOR
MCU STATUS
OSCILLATOR
RESET FLAG
WATCHDOG
INTERRUPT
COUNTER0
REGISTER
REGISTER
INTERNAL
ANALOG
TIMER/
TIMER
UNIT
ATtiny4/5/9/10
RESET
OSCILLATOR
CALIBRATED
TIMING AND
CONTROL
ADC
3