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AT90LS2323-4SC датащи(PDF) 2 Page - ATMEL Corporation

номер детали AT90LS2323-4SC
подробное описание детали  8-Bit Microcontroller with 2K Bytes of In-System Programmable Flash
PDF  64 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90LS2323-4SC датащи(HTML) 2 Page - ATMEL Corporation

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AT90S/LS2323/2343
1004D–09/01
Description
The AT90S/LS2323 and AT90S/LS2343 are low-power, CMOS, 8-bit microcontrollers
based on the AVR RISC architecture. By executing powerful instructions in a single
clock cycle, the AT90S2323/2343 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.
Block Diagram
Figure 1. The AT90S/LS2343 Block Diagram
PROGRAM
COUNTER
INTERNAL
OSCILLATOR
WATCHDOG
TIMER
STACK
POINTER
PROGRAM
FLASH
MCU CONTROL
REGISTER
SRAM
GENERAL
PURPOSE
REGISTERS
INSTRUCTION
REGISTER
TIMER/
COUNTER
INSTRUCTION
DECODER
DATA DIR.
REG. PORTB
DATA REGISTER
PORTB
PROGRAMMING
LOGIC
TIMING AND
CONTROL
INTERRUPT
UNIT
EEPROM
SPI
STATUS
REGISTER
Z
Y
X
ALU
PORTB DRIVERS
PB0 - PB4
RESET
VCC
GND
CONTROL
LINES
8-BIT DATA BUS



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