AT90LS2323 ATMEL Corporation, AT90LS2323 Datasheet

AT90LS2323

Manufacturer Part Number

AT90LS2323

Description

8-bit Microcontroller

Manufacturer

ATMEL Corporation

Datasheet

1.AT90LS2323.pdf (11 pages)

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Features

•

Description

The AT90S/LS2323 and AT90S/LS2343 is a low-power CMOS 8-bit microcontrollers

based on the AVR

in a single clock cycle, the AT90S/LS2323 and AT90S/LS2343 achieves throughputs

approaching 1 MIPS per MHz allowing the system designer to optimize power con-

sumption 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.

Pin Configuration

(CLOCK) PB3

Utilizes the AVR

AVR - High Performance and Low Power RISC Architecture

118 Powerful Instructions - Most Single Clock Cycle Execution

2K bytes of In-System Programmable ISP Flash

128 bytes EEPROM

128 bytes Internal RAM

32 x 8 General Purpose Working Registers

Power-On Reset Circuit

Speed Grades: 0 - 10 MHz AT90S2323/AT90S2343

Speed Grades: 0 - 4 MHz AT90LS2323/AT90LS2343

Up to 10 MIPS Throughput at 10 MHz

One 8-Bit Timer/Counter with Separate Prescaler

External and Internal Interrupt Sources

Programmable Watchdog Timer with On-Chip Oscillator

Low Power Idle and Power Down Modes

Programming Lock for Flash Program and EEPROM Data Security

Selectable On-Chip RC Oscillator

8-Pin Device

– SPI Serial Interface for Program Downloading

– Endurance: 1,000 Write/Erase Cycles

– Endurance: 100,000 Write/Erase Cycles

– 3 AT90S/LS2323 Programmable I/O Lines

– 5 AT90S/LS2343 Programmable I/O Lines

: 4.0 - 6.0V AT90S2323/AT90S2343

: 2.7 - 6.0V AT90LS2323/AT90LS2343

RESET

GND

PB4

AT90S/LS2343

Enhanced RISC Architecture

enhanced RISC architecture. By executing powerful instructions

VCC

PB2 (SCK/T0)

PB1 (MISO/INT0)

PB0 (MOSI)

PDIP/SOIC

RESET

XTAL1

XTAL2

GND

AT90S/LS2323

VCC

PB2 (SCK/T0)

PB1 (MISO/INT0)

PB0 (MOSI)

8-Bit

Microcontroller

with 2K Bytes of

In-System

Programmable

Flash

AT90S2323

AT90LS2323

AT90S2343

AT90LS2343

Preliminary

AT90S/LS2323

Rev. 1004AS–05/98

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