Datasheet > W78E54B-24

W78E54B-24

更新时间： 2024-11-16 23:41:39

品牌	Logo	应用领域
其他 - ETC		微控制器
页数	文件大小	规格书
23页	307K
描述
MICROCONTROLLER\|8-BIT\|8051 CPU\|CMOS\|DIP\|40PIN\|PLASTIC

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W78E54B-24 数据手册

W78E58

8-BIT MICROCONTROLLER

GENERAL DESCRIPTION

The W78E58 is an 8-bit microcontroller that is functionally compatible with the W78C58, except that

the mask ROM is replaced by a flash EEPROM with a size of 32 KB. To facilitate programming and

verification, the flash EEPROM inside the W78E58 allows the program memory to be programmed

and read electronically. Once the code is confirmed, the user can protect the code for security.

The W78E58 microcontroller supplies a wider frequency range than most 8-bit microcontrollers on the

market. It is functionally compatible with the industry-standard 80C52 microcontroller series, except

that one extra 4-bit bit-addressable I/O port(Port 4) and two additional external interrupts (INT2 ,

INT3 ).

The W78E58 contains four 8-bit bi-directional and bit-addressable I/O ports, three 16-bit

timer/counters, and a serial port. These peripherals are supported by a eight-source, two-level

interrupt capability. There are 256 bytes of RAM and an 32 KB flash EEPROM for application

programs.

The W78E58 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

· 8-bit CMOS microcontroller

· Fully static design

· Low standby current at full supply voltage

· DC-40 MHz operation

· 256 bytes of on-chip scratchpad RAM

· 32 KB electrically erasable/programmable EPROM

· 64 KB program memory address space

· 64 KB data memory address space

· Four 8-bit bidirectional ports

· One extra 4-bit bit-addressable I/O port, additional INT2 / INT3

(available on 44-pin PLCC/QFP package)

· Three 16-bit timer/counters

· One full duplex serial port

· Boolean processor

· Eight-source, two-level interrupt capability

· Built-in power management

· Code protection mechanism

· Packages:

- DIP 40: W78E58-16/24/40

- PLCC 44: W78E58P-16/24/40

- QFP 44: W78E58F-16/24/40

- TQFP 44: W78E58M-16/24/40

Publication Release Date: November 1997

- 1 -

Revision A2

12 3 4 5 6 7...23

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与W78E54B-24相关器件

型号	品牌	获取价格	描述	数据表
W78E54B-24/40	WINBOND	获取价格	Microcontroller, 8-Bit, EEPROM, 40MHz, CMOS, PDIP40, DIP-40
W78E54B-40	ETC	获取价格	MICROCONTROLLER\|8-BIT\|8051 CPU\|CMOS\|DIP\|40PIN\|PLASTIC
W78E54B40DL	WINBOND	获取价格	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PDIP40, ROHS COMPLIANT, DIP-40
W78E54B40FL	WINBOND	获取价格	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PQFP44, ROHS COMPLIANT, PLASTIC, QFP-44
W78E54B40PL	WINBOND	获取价格	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, PQCC44, ROHS COMPLIANT, PLASTIC, LCC-44
W78E54BF-24	ETC	获取价格	MICROCONTROLLER\|8-BIT\|8051 CPU\|CMOS\|QFP\|44PIN\|PLASTIC
W78E54BF-24/40	WINBOND	获取价格	Microcontroller, 8-Bit, EEPROM, 40MHz, CMOS, PQFP44, PLASTIC, QFP-44
W78E54BF-40	ETC	获取价格	MICROCONTROLLER\|8-BIT\|8051 CPU\|CMOS\|QFP\|44PIN\|PLASTIC
W78E54BP-24	ETC	获取价格	MICROCONTROLLER\|8-BIT\|8051 CPU\|CMOS\|LDCC\|44PIN\|PLASTIC
W78E54BP-40	ETC	获取价格	MICROCONTROLLER\|8-BIT\|8051 CPU\|CMOS\|LDCC\|44PIN\|PLASTIC

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