Datasheet > W27E257

W27E257

更新时间： 2024-09-18 22:36:39

品牌	Logo	应用领域
华邦 - WINBOND		可编程只读存储器电动程控只读存储器
页数	文件大小	规格书
14页	227K
描述
32K X 8 ELECTRICALLY ERASABLE EPROM

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中文翻译

获取价格

数据手册

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W27E257 数据手册

W27E257

32K ´ 8 ELECTRICALLY ERASABLE EPROM

GENERAL DESCRIPTION

The W27E257 is a high-speed, low-power Electrically Erasable and Programmable Read Only

Memory organized as 32768 ´ 8 bits that operates on a single 5 volt power supply. The W27E257

provides an electrical chip erase function. This part was the same EPROM Writer's utilities as the

W27E256.

FEATURES

· High speed access time:

100/120/150 nS (max.)

· +14V erase/+12V programming voltage

· Fully static operation

· Read operating current: 15 mA (typ.)

· All inputs and outputs directly TTL/CMOS

compatible

· Erase/Programming operating current

1 mA (typ.)

· Three-state outputs

· Available packages: 28-pin 600 mil DIP and

32-pin PLCC

· Standby current: 5 mA (typ.)

· Single 5V power supply

PIN CONFIGURATIONS

BLOCK DIAGRAM

OUTPUT

CONTROL

DECODER

A14

A13

A12

BUFFER

A11

28-pin

DIP

CORE

ARRAY

A10

A14

GND

PIN DESCRIPTION

SYMBOL

DESCRIPTION

Address Inputs

Data Inputs/Outputs

A0- A14

Q0- Q7

A11

32-pin

PLCC

A10

Chip Enable

Output Enable

VPP

VCC

GND

Program/Erase Supply Voltage

Power Supply

Ground

No Connection

Publication Release Date: January 1997

Revision A3

- 1 -

12 3 4 5 6 7...14

中文翻译

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与W27E257相关器件

型号	品牌	获取价格	描述	数据表
W27E257-10	WINBOND	获取价格	32K X 8 ELECTRICALLY ERASABLE EPROM
W27E257-12	WINBOND	获取价格	32K X 8 ELECTRICALLY ERASABLE EPROM
W27E257-15	WINBOND	获取价格	32K X 8 ELECTRICALLY ERASABLE EPROM
W27E257P-10	WINBOND	获取价格	32K X 8 ELECTRICALLY ERASABLE EPROM
W27E257P-12	WINBOND	获取价格	32K X 8 ELECTRICALLY ERASABLE EPROM
W27E257P-15	WINBOND	获取价格	32K X 8 ELECTRICALLY ERASABLE EPROM
W27E4096-12	WINBOND	获取价格	EEPROM, 256KX16, 120ns, Parallel, CMOS, PDIP40, 0.600 INCH, PLASTIC, DIP-40
W27E4096-90	WINBOND	获取价格	EEPROM, 256KX16, 90ns, Parallel, CMOS, PDIP40, 0.600 INCH, PLASTIC, DIP-40
W27E4096P-12	WINBOND	获取价格	EEPROM, 256KX16, 120ns, Parallel, CMOS, PQCC44, PLASTIC, LCC-44
W27E4096P-90	WINBOND	获取价格	EEPROM, 256KX16, 90ns, Parallel, CMOS, PQCC44, PLASTIC, LCC-44