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AT89S8252-24QC PDF预览

AT89S8252-24QC

更新时间: 2024-11-07 22:53:59
品牌 Logo 应用领域
爱特美尔 - ATMEL 微控制器和处理器外围集成电路异步传输模式ATM时钟
页数 文件大小 规格书
31页 457K
描述
8-Bit Microcontroller with 8K Bytes Flash

AT89S8252-24QC 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:5.79
Is Samacsys:N具有ADC:NO
地址总线宽度:16位大小:8
CPU系列:8051最大时钟频率:24 MHz
DAC 通道:NODMA 通道:NO
外部数据总线宽度:8JESD-30 代码:S-PQFP-G44
JESD-609代码:e0长度:10 mm
I/O 线路数量:32端子数量:44
最高工作温度:70 °C最低工作温度:
PWM 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 QualifiedRAM(字节):256
ROM(单词):8192ROM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:COMMERCIAL
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 mm
uPs/uCs/外围集成电路类型:MICROCONTROLLERBase Number Matches:1

AT89S8252-24QC 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  

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