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W78IE52 PDF预览

W78IE52

更新时间: 2024-11-20 21:55:27
品牌 Logo 应用领域
华邦 - WINBOND 微控制器和处理器外围集成电路光电二极管时钟
页数 文件大小 规格书
22页 281K
描述
8 BIT MICROCONTROLLER

W78IE52 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP-40
针数:40Reach Compliance Code:unknown
HTS代码:8542.31.00.01风险等级:5.88
具有ADC:NO地址总线宽度:16
位大小:8CPU系列:8051
最大时钟频率:20 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:e0
长度:52.2 mmI/O 线路数量:32
端子数量:40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:DIP
封装等效代码:DIP40,.6封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:3/5 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:5.334 mm
速度:20 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:2.4 V标称供电电压:4.5 V
表面贴装:NO技术:CMOS
温度等级:INDUSTRIAL端子面层:TIN LEAD
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:15.24 mmuPs/uCs/外围集成电路类型:MICROCONTROLLER
Base Number Matches:1

W78IE52 数据手册

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Preliminary W78IE52  
8-BIT MICROCONTROLLER  
1. GENERAL DESCRIPTION  
The W78IE52 is an 8-bit microcontroller which can accommodate a wider frequency range with low  
power consumption. The instruction set for the W78IE52 is fully compatible with the standard 8051.  
The W78IE52 contains an 8K bytes Flash EPROM; a 256 bytes RAM; four 8-bit bi-directional and bit-  
addressable I/O ports; an additional 4-bit I/O port P4; three 16-bit timer/counters; a hardware  
watchdog timer and a serial port. These peripherals are supported by eight sources two-level interrupt  
capability. To facilitate programming and verification, the Flash EPROM inside the W78IE52 allows the  
program memory to be programmed and read electronically. Once the code is confirmed, the user can  
protect the code for security.  
The W78IE52 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.  
2. FEATURES  
Fully static design 8-bit CMOS microcontroller  
Wide supply voltage of 2.4V to 5.5V  
Industrial temperature grade -40ºC 85ºC  
256 bytes of on-chip scratchpad RAM  
8 KB electrically erasable/programmable Flash EPROM  
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 package)  
Three 16-bit timer/counters  
One full duplex serial port (UART)  
Watchdog Timer  
Eight sources, two-level interrupt capability  
EMI reduction mode  
Comment [W1]:  
Built-in power management  
Code protection mechanism  
Packages:  
DIP 40: W78IE52  
PLCC 44: W78IE52P  
Publication Release Date: April 20, 2005  
- 1 -  
Revision A2  

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