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IS41C44054-50JI

更新时间： 2024-02-28 12:14:22

品牌	Logo	应用领域
美国芯成 - ISSI		/
页数	文件大小	规格书
17页	138K
描述
4M x 4 (16-MBIT) DYNAMIC RAM WITH FAST PAGE MODE

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IS41C44054-50JI 数据手册

IS41C4405X

IS41LV4405X SERIES

4M x 4 (16-MBIT) DYNAMIC RAM

WITH FAST PAGE MODE

ISSI

JUNE 2001

DESCRIPTION

FEATURES

• Fast Page Mode Access Cycle

• TTL compatible inputs and outputs

• Refresh Interval:

The ISSI 4405x Series is a 4,194,304 x 4-bit high-performance

CMOS Dynamic Random Access Memory. The Fast

Page Mode allows 2,048 or 4096 random accesses within

a single row with access cycle time as short as 20 ns per

4-bit word.

-- 2,048 cycles/32 ms

-- 4,096 cycles/64 ms

• Refresh Mode: RAS-Only,

CAS-before-RAS (CBR), and Hidden

• Single power supply:

These features make the 4405x Series ideally suited for

high-bandwidth graphics, digital signal processing,

high-performance computing systems, and peripheral

applications.

5V 10ꢀ or 3.3V 10ꢀ

• Byte Write and Byte Read operation via two CAS

The 4405x Series is packaged in a 24-pin 300-mil SOJ

with JEDEC standard pinouts.

• Industrial temperature range -40°C to 85°C

PRODUCT SERIES OVERVIEW

KEY TIMING PARAMETERS

Part No.

Refresh

Voltage

5V 10ꢀ

3.3V 10ꢀ

Parameter

-50

-60

Unit

RAS Access Time (tRAC)

CAS Access Time (tCAC)

ColumnAddressAccessTime(tAA

IS41C44052

IS41C44054

IS41LV44052

IS41LV44054

)

FastPageModeCycleTime(tPC

)

Read/Write Cycle Time (tRC)

104

PIN CONFIGURATION

24 (26) Pin SOJ

PIN DESCRIPTIONS

A0-A11

A0-A10

I/O0-3

Address Inputs (4K Refresh)

Address Inputs (2K Refresh)

Data Inputs/Outputs

Write Enable

VCC

I/O0

GND

I/O3

I/O2

CAS

I/O1

RAS

Output Enable

*A11(NC)

RAS

CAS

Vcc

Row Address Strobe

Column Address Strobe

Power

A10

GND

Ground

No Connection

VCC

GND

* A11 is NC for 2K Refresh devices.

ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any

Integrated Silicon Solution, Inc. — 1-800-379-4774

Rev. C

06/24/01

12 3 4 5 6 7...17

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