Datasheet > K4F640811B-JC45

K4F640811B-JC45

更新时间： 2024-02-07 10:41:07

品牌	Logo	应用领域
三星 - SAMSUNG		/
页数	文件大小	规格书
20页	370K
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中文翻译

获取价格

数据手册

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K4F640811B-JC45 数据手册

K4F660811B,K4F640811B

CMOS DRAM

8M x 8bit CMOS Dynamic RAM with Fast Page Mode

DESCRIPTION

This is a family of 8,388,608 x 8 bit Fast Page Mode CMOS DRAMs. Fast Page Mode offers high speed random access of memory cells

within the same row. Refresh cycle(4K Ref. or 8K Ref.), access time (-45, -50 or -60), package type (SOJ or TSOP-II) are optional fea-

tures of this family. All of this family have CAS-before-RAS refresh, RAS-only refresh and Hidden refresh capabilities. This 8Mx8 Fast

Page Mode DRAM family is fabricated using Samsung¢s advanced CMOS process to realize high band-width, low power consumption

and high reliability.

FEATURES

• Fast Page Mode operation

• Part Identification

- K4F660811B-JC(5.0V, 8K Ref.)

- K4F640811B-JC(5.0V, 4K Ref.)

- K4F660811B-TC(5.0V, 8K Ref.)

- K4F640811B-TC(5.0V, 4K Ref.)

• CAS-before-RAS refresh capability

• RAS-only and Hidden refresh capability

• Fast parallel test mode capability

• TTL(5.0V) compatible inputs and outputs

• Early Write or output enable controlled write

• JEDEC Standard pinout

• Active Power Dissipation

Unit : mW

• Available in Plastic SOJ and TSOP(II) packages

• +5.0V±10% power supply

Speed

-45

715

660

605

550

495

440

-50

-60

• Refresh Cycles

Part

NO.

Refresh

cycle

Refresh time

FUNCTIONAL BLOCK DIAGRAM

Normal

K4F660811B*

K4F640811B

RAS

CAS

64ms

Vcc

Vss

Control

Clocks

VBB Generator

* Access mode & RAS only refresh mode

: 8K cycle/64ms

CAS-before-RAS & Hidden refresh mode

: 4K cycle/64ms

Row Decoder

Refresh Timer

Refresh Control

Data in

Buffer

Memory Array

8,388,608 x 8

Cells

DQ0

DQ7

Refresh Counter

Row Address Buffer

Col. Address Buffer

• Performance Range

Speed

Data out

Buffer

tRAC

45ns

50ns

60ns

tCAC

12ns

13ns

15ns

tRC

80ns

90ns

110ns

tPC

A0~A12

(A0~A11)*1

-45

-50

-60

31ns

35ns

40ns

A0~A9

(A0~A10)*1

Column Decoder

Note) *1 : 4K Refresh

SAMSUNG ELECTRONICS CO., LTD. reserves the right to

change products and specifications without notice.

12 3 4 5 6 7...20

中文翻译

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与K4F640811B-JC45相关器件

型号	品牌	获取价格	描述	数据表
K4F640811B-JC450	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 45ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32
K4F640811B-JC50	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 50ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32
K4F640811B-JC500	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 50ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32
K4F640811B-JC60	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 60ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32
K4F640811B-TC45	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 45ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, TSOP2-32
K4F640811B-TC50	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 50ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, TSOP2-32
K4F640811D-TC600	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 60ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, TSOP2-32
K4F640812C-JC500	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 50ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32
K4F640812C-JC60	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 60ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32
K4F640812C-JL45	SAMSUNG	获取价格	Fast Page DRAM, 8MX8, 45ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32

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