Datasheet > W27C520

W27C520

更新时间： 2024-09-18 22:41:27

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
16页	237K
描述
64K X 8 ELECTRICALLY ERASABLE EPROM

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中文翻译

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数据手册

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W27C520 数据手册

Preliminary W27C520

´ 8 ELECTRICALLY ERASABLE EPROM

64K

GENERAL DESCRIPTION

The W27C520 is a high speed, low power Electrically Erasable and Programmable Read Only Memory

organized as 65,536 ´ 8 bits. It includes latches for the lower 8 address lines to multiplex with the 8

data lines. To cooperate with the MCU, this device could save the external TTL component, also cost

and space. It requires only one supply in the range of 3.0V to 3.6V or 4.5V to 5.5V in normal read

mode. The W27C520 provides an electrical chip erase function. It will be a great convenient when you

need to change/update the contents in the device.

FEATURES

· High speed access time: 70/90 nS (max.)

· Read operating current: 8/20 mA (max.)

· Erase/Programming operating current

· High Reliability CMOS Technology

- 2K V ESD Protection

- 200 mA Latchup Immunity

· Fully static operation

30 mA (max.)

· All inputs and outputs directly LVTTL/CMOS

compatible

· Three-state outputs

· Standby current: 20/100 mA (max.)

· Unregulated battery power supply range,

3.0V to 3.6V and 4.5V to 5.5V

· Available packages: 20-pin TSSOP and 20-pin

SOP

· +13V erase and programming voltage

PIN CONFIGURATIONS

BLOCK DIAGRAM

A10

A12

A14

ALE

OUTPUT

BUFFER

CONTROL

AD1

AD3

AD5

AD7

GND

OE / V

TSSOP

Top View

AD7 - AD0

OE/VPP

A15

MEMORY

ARRAY

DECODER

AD6

AD4

AD2

AD0

A13

A15 - A8

A11

GND

VDD

ALE

A14

A12

A10

OE/VPP

A15

PIN DESCRIPTION

A13

A11

SYMBOL

DESCRIPTION

Address/Data Inputs/Outputs

Address Inputs

AD0- AD7

A8- A15

ALE

SOP

Top View

AD0

AD1

AD2

AD4

AD6

GND

Address Latch Enable

AD3

AD5

AD7

Output Enable, Program/Erase

Supply Voltage

OE/VPP

VDD

Power Supply

Ground

GND

Publication Release Date: October 2000

Revision A1

- 1 -

12 3 4 5 6 7...16

中文翻译

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