Datasheet > W78E858F-40

W78E858F-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, PQFP44,

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W78E858F-40 技术参数

生命周期：	Transferred	包装说明：	QFP, QFP44,.5SQ,32
Reach Compliance Code：	unknown	风险等级：	5.8
位大小：	8	CPU系列：	8051
JESD-30 代码：	S-PQFP-G44	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：	QFP
封装等效代码：	QFP44,.5SQ,32	封装形状：	SQUARE
封装形式：	FLATPACK	电源：	5 V
认证状态：	Not Qualified	RAM（字节）：	768
ROM（单词）：	32768	ROM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：	GULL WING
端子节距：	0.8 mm	端子位置：	QUAD
Base Number Matches：	1

W78E858F-40 数据手册

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

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与W78E858F-40相关器件

型号	品牌	获取价格	描述	数据表
W78E858P	WINBOND	获取价格	Microcontroller, 8-Bit, FLASH, 8051 CPU, 40MHz, CMOS, PQCC44, PLASTIC, LCC-44
W78E858P-40	WINBOND	获取价格	Microcontroller, 8-Bit, FLASH, 8051 CPU, 20MHz, CMOS, PQCC44,
W78ERD2	WINBOND	获取价格	8-BIT MICROCONTROLLER
W78ERD2_07	WINBOND	获取价格	8-BIT MICROCONTROLLER
W78ERD2A	WINBOND	获取价格	8-BIT MICROCONTROLLER
W78ERD2A	NUVOTON	获取价格	PCA， 6T/12T option， Extra I/O port
W78ERD2A40DL	WINBOND	获取价格	8-BIT MICROCONTROLLER
W78ERD2A40DN	WINBOND	获取价格	8-BIT MICROCONTROLLER
W78ERD2A40FL	WINBOND	获取价格	8-BIT MICROCONTROLLER
W78ERD2A40FN	WINBOND	获取价格	8-BIT MICROCONTROLLER

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