参数资料
型号: AT90LS2343-1SI
厂商: Atmel
文件页数: 22/63页
文件大小: 0K
描述: IC MCU 2K FLASH 1MHZ IND 8-SOIC
标准包装: 95
系列: AVR® 90LS
核心处理器: AVR
芯体尺寸: 8-位
速度: 1MHz
连通性: SPI
外围设备: 欠压检测/复位,POR,WDT
输入/输出数: 5
程序存储器容量: 2KB(1K x 16)
程序存储器类型: 闪存
EEPROM 大小: 128 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 6 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.209",5.30mm 宽)
包装: 管件
3
AT90S/LS2323/2343
1004D–09/01
Figure 2. The AT90S/LS2323 Block Diagram
The AT90S2323/2343 provides the following features: 2K bytes of In-System Program-
mabl e F lash, 128 bytes EEPROM, 128 bytes SRAM, 3 (A T90S/L S2323)/5
(AT90S/LS2343) general-purpose I/O lines, 32 general-purpose working registers, an 8-
bit timer/counter, internal and external interrupts, programmable Watchdog Timer with
internal oscillator, an SPI serial port for Flash Memory downloading and two software-
selectable power-saving modes. The Idle mode stops the CPU while allowing the
SRAM, timer/counters, SPI port 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 device is manufactured using Atmel’s high-density nonvolatile memory technology.
The On-chip Flash allows the program memory to be reprogrammed in-system through
an SPI serial interface. By combining an 8-bit RISC CPU with ISP Flash on a monolithic
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
OSCILLATOR
INTERRUPT
UNIT
EEPROM
SPI
STATUS
REGISTER
Z
Y
X
ALU
PORTB DRIVERS
PB0 - PB2
RESET
VCC
GND
CONTROL
LINES
8-BIT DATA BUS
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