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AT89S8252-24QI PDF预览

AT89S8252-24QI

更新时间： 2024-09-20 22:53:59
品牌 Logo 应用领域
爱特美尔 - ATMEL 微控制器
页数 文件大小 规格书
31页 457K
描述
8-Bit Microcontroller with 8K Bytes Flash

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中文翻译

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AT89S8252-24QI 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QFP包装说明：QFP, QFP44,.5SQ,32
针数：44Reach Compliance Code：unknown
HTS代码：8542.31.00.01风险等级：5.74
具有ADC：NO地址总线宽度：16
位大小：8CPU系列：8051
最大时钟频率：24 MHzDAC 通道：NO
DMA 通道：NO外部数据总线宽度：8
JESD-30 代码：S-PQFP-G44JESD-609代码：e0
长度：10 mmI/O 线路数量：32
端子数量：44最高工作温度：85 °C
最低工作温度：-40 °CPWM 通道：NO
封装主体材料：PLASTIC/EPOXY封装代码：QFP
封装等效代码：QFP44,.5SQ,32封装形状：SQUARE
封装形式：FLATPACK峰值回流温度（摄氏度）：NOT SPECIFIED
电源：5 V认证状态：Not Qualified
RAM（字节）：256ROM（单词）：8192
ROM可编程性：FLASH座面最大高度：2.45 mm
速度：24 MHz子类别：Microcontrollers
最大压摆率：25 mA最大供电电压：6 V
最小供电电压：4 V标称供电电压：5 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：0.8 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：10 mmuPs/uCs/外围集成电路类型：MICROCONTROLLER
Base Number Matches：1

AT89S8252-24QI 数据手册

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Features  
• Compatible with MCS-51™ Products  
• 8K Bytes of In-System Reprogrammable Downloadable Flash Memory  
– SPI Serial Interface for Program Downloading  
– Endurance: 1,000 Write/Erase Cycles  
• 2K Bytes EEPROM  
– Endurance: 100,000 Write/Erase Cycles  
• 4.0V to 6V Operating Range  
• Fully Static Operation: 0 Hz to 24 MHz  
• Three-Level Program Memory Lock  
• 256 x 8-bit Internal RAM  
• 32 Programmable I/O Lines  
• Three 16-bit Timer/Counters  
8-Bit  
Microcontroller  
with 8K Bytes  
Flash  
• Nine Interrupt Sources  
• Programmable UART Serial Channel  
• SPI Serial Interface  
• Low Power Idle and Power Down Modes  
• Interrupt Recovery From Power Down  
• Programmable Watchdog Timer  
• Dual Data Pointer  
• Power Off Flag  
AT89S8252  
Description  
The AT89S8252 is a low-power, high-performance CMOS 8-bit microcomputer with  
8K bytes of Downloadable Flash programmable and erasable read only memory and  
2K bytes of EEPROM. The device is manufactured using Atmel’s high density nonvol-  
atile memory technology and is compatible with the industry standard 80C51 instruc-  
tion set and pinout. The on-chip Downloadable Flash allows the program memory to  
be reprogrammed in-system through an SPI serial interface or by a conventional non-  
volatile memory programmer. By combining a versatile 8-bit CPU with Downloadable  
Flash on a monolithic chip, the Atmel AT89S8252 is a powerful microcomputer which  
provides a highly flexible and cost effective solution to many embedded control appli-  
cations.  
The AT89S8252 provides the following standard features: 8K bytes of Downloadable  
Flash, 2K bytes of EEPROM, 256 bytes of RAM, 32 I/O lines, programmable watch-  
dog timer, two Data Pointers, three 16-bit timer/counters, a six-vector two-level inter-  
rupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In  
addition, the AT89S8252 is designed with static logic for operation down to zero fre-  
quency and supports two software selectable power saving modes. The Idle Mode  
stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt sys-  
tem to continue functioning. The Power Down Mode saves the RAM contents but  
freezes the oscillator, disabling all other chip functions until the next interrupt or hard-  
ware reset.  
The Downloadable Flash can be changed a single byte at a time and is accessible  
through the SPI serial interface. Holding RESET active forces the SPI bus into a serial  
programming interface and allows the program memory to be written to or read from  
unless Lock Bit 2 has been activated.  
0401D-A–12/97  
4-105  
1234567...31

中文翻译

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