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ATA5774 Datasheet(PDF) 11 Page - ATMEL Corporation |
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ATA5774 Datasheet(HTML) 11 Page - ATMEL Corporation |
11 / 219 page 11 9137E–RKE–12/10 Atmel ATA5771/73/74 4. Microcontroller Block These data are referred to the data base of microcontroller Atmel ATtiny44V. 4.1 Overview The ATtiny44V is a low-power CMOS 8-bit microcontroller based on the Atmel AVR ® enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny44V achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. 4.2 Block Diagram Figure 4-1. Block Diagram WATCHDOG TIMER MCU CONTROL REGISTER TIMER/ COUNTER0 DATA DIR. REG.PORT A DATA REGISTER PORT A PROGRAMMING LOGIC TIMING AND CONTROL MCU STATUS REGISTER PORT A DRIVERS PA7-PA0 VCC GND 8-BIT DATABUS ADC ISP INTERFACE INTERRUPT UNIT EEPROM INTERNAL OSCILLATOR OSCILLATORS CALIBRATED OSCILLATOR INTERNAL DATA DIR. REG.PORT B DATA REGISTER PORT B PORT B DRIVERS PB3-PB0 PROGRAM COUNTER STACK POINTER PROGRAM FLASH SRAM GENERAL PURPOSE REGISTERS INSTRUCTION REGISTER INSTRUCTION DECODER STATUS REGISTER Z Y X ALU CONTROL LINES TIMER/ COUNTER1 |
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