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W78E858P-40

更新时间： 2024-11-20 15:57:55
品牌 Logo 应用领域
华邦 - WINBOND 微控制器
页数 文件大小 规格书
28页 377K
描述
Microcontroller, 8-Bit, FLASH, 8051 CPU, 20MHz, CMOS, PQCC44,

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中文翻译

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W78E858P-40 技术参数

生命周期：Transferred包装说明：QCCJ, LDCC44,.7SQ
Reach Compliance Code：unknown风险等级：5.8
位大小：8CPU系列：8051
JESD-30 代码：S-PQCC-J44端子数量：44
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：QCCJ
封装等效代码：LDCC44,.7SQ封装形状：SQUARE
封装形式：CHIP CARRIER电源：5 V
认证状态：Not QualifiedRAM（字节）：768
ROM（单词）：32768ROM可编程性：FLASH
速度：20 MHz子类别：Microcontrollers
最大压摆率：20 mA标称供电电压：5 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
Base Number Matches：1

W78E858P-40 数据手册

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W78E858  
8-BIT MICROCONTROLLER  
1. GENERAL DESCRIPTION  
The W78E858 is an 8-bit microcontroller which has an in-system programmable Flash EPROM for  
firmware updating. The instruction set of the W78E858 is fully compatible with the standard 8052. The  
W78E858 contains a 32K bytes of main Flash EPROM and a 4K bytes of auxiliary Flash EPROM  
which allows the contents of the 32KB main Flash EPROM to be updated by the loader program  
located at the 4KB auxiliary Flash EPROM ROM; 768 bytes of on-chip RAM; 128 bytes of EEPROM, 8  
extra power down wake-up through INT2 to INT9; 4 channel 8-bit PWM; four 8-bit bi-directional and  
bit-addressable I/O ports; an additional 4-bit port P4; three 16-bit timer/counters where the TIMER2  
with programmable clock output and 17-bit watchdog timer are built in this device; a serial port. These  
peripherals are supported by a eight sources two-level interrupt capability. To facilitate programming  
and verification, the Flash EPROM inside the W78E858 allows the program memory to be  
programmed and read electronically. Once the code is confirmed, the user can protect the code for  
security.  
2. FEATURES  
• Fully static design 8-bit CMOS micro-controller up to 40 MHz  
• 32K bytes of in-system programmable FLASH EPROM for Application Program (APROM)  
• 4K bytes of auxiliary FLASH EPROM for Loader Program (LDROM)  
• Low standby current at full supply voltage  
• 256 + 512 bytes of on-chip RAM  
• 128 bytes on-chip EEPROM memory  
• 64K bytes program memory address space and 64K bytes data memory address space  
• Four 8-bit bi-directional ports  
• One 4-bit bi-directional port  
• Extra interrupts INT2 to INT9 at PORT1  
• Wake-up via external interrupts INT0 − INT9  
• Three 16-bit timer/counters  
• One full duplex serial port  
• Fourteen-sources, two-level interrupt capability  
• Programmable Timer2 clock output via P1.0  
• 17-bits watchdog timer  
• Four channels 8-bit PWM  
• Built-in power management  
• Code protection  
• Packaged in PDIP 40 / PLCC 44 / PQFP 44  
Publication Release Date: November 27, 2002  
- 1 -  
Revision A3  
1234567...28

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