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W78E51B-40 PDF预览

W78E51B-40

更新时间: 2024-11-17 22:17:11
品牌 Logo 应用领域
华邦 - WINBOND 微控制器和处理器光电二极管
页数 文件大小 规格书
23页 319K
描述
8-BIT MTP MICROCONTROLLER

W78E51B-40 技术参数

生命周期:Obsolete零件包装代码:DIP
包装说明:DIP, DIP40,.6针数:40
Reach Compliance Code:unknownECCN代码:3A991.A.2
HTS代码:8542.31.00.01风险等级:5.5
具有ADC:NO地址总线宽度:16
位大小:8CPU系列:8051
最大时钟频率:40 MHzDAC 通道:NO
DMA 通道:NO外部数据总线宽度:8
JESD-30 代码:R-PDIP-T40JESD-609代码:e3
长度:52.2 mmI/O 线路数量:32
端子数量:40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:DIP
封装等效代码:DIP40,.6封装形状:RECTANGULAR
封装形式:IN-LINE电源:5 V
认证状态:Not QualifiedRAM(字节):128
ROM(单词):4096ROM可编程性:FLASH
座面最大高度:5.334 mm速度:40 MHz
子类别:Microcontrollers最大压摆率:20 mA
最大供电电压:5.5 V最小供电电压:4.5 V
标称供电电压:5 V表面贴装:NO
技术:CMOS温度等级:COMMERCIAL
端子面层:MATTE TIN端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
宽度:15.24 mmuPs/uCs/外围集成电路类型:MICROCONTROLLER
Base Number Matches:1

W78E51B-40 数据手册

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Preliminary W78E51B  
8-BIT MTP MICROCONTROLLER  
GENERAL DESCRIPTION  
The W78E51B is an 8-bit microcontroller which can accommodate a wider frequency range with low  
power consumption. The instruction set for the W78E51B is fully compatible with the standard 8051.  
The W78E51B contains an 4K bytes MTP ROM (Multiple-Time Programmable ROM); a 128 bytes  
RAM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit I/O port P4; two 16-bit  
timer/counters; a hardware watchdog timer and a serial port. These peripherals are supported by  
seven sources two-level interrupt capability. To facilitate programming and verification, the MTP-  
ROM inside the W78E51B allows the program memory to be programmed and read electronically.  
Once the code is confirmed, the user can protect the code for security.  
The W78E51B microcontroller has two power reduction modes, idle mode and power-down mode,  
both of which are software selectable. The idle mode turns off the processor clock but allows for  
continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power  
consumption. The external clock can be stopped at any time and in any state without affecting the  
processor.  
FEATURES  
· Fully static design 8-bit CMOS microcontroller  
· Wide supply voltage of 4.5V to 5.5V  
· 128 bytes of on-chip scratchpad RAM  
· 4 KB electrically erasable/programmable MTP-ROM  
· 64 KB program memory address space  
· 64 KB data memory address space  
· Four 8-bit bi-directional ports  
· One extra 4-bit bit-addressable I/O port, additional INT2 / INT3  
(available on 44-pin PLCC/QFP package)  
· Two 16-bit timer/counters  
· One full duplex serial port(UART)  
· Watchdog Timer  
· seven sources, two-level interrupt capability  
· EMI reduction mode  
· Built-in power management  
· Code protection mechanism  
· Packages:  
- DIP 40: W78E51B-24/40  
- PLCC 44: W78E51BP-24/40  
- PQFP 44: W78E51BF-24/40  
Publication Release Date: December 1998  
- 1 -  
Revision A1  

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