Datasheet > K4F640412B-JC50

K4F640412B-JC50

更新时间： 2023-08-15 00:00:00

品牌	Logo	应用领域
三星 - SAMSUNG		动态存储器光电二极管
页数	文件大小	规格书
20页	369K
描述
Fast Page DRAM, 16MX4, 50ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32

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K4F640412B-JC50 数据手册

K4F660412B,K4F640412B

CMOS DRAM

16M x 4bit CMOS Dynamic RAM with Fast Page Mode

DESCRIPTION

This is a family of 16,777,216 x 4 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), power consumption(Normal or Low power)

are optional features of this family. All of this family have CAS-before-RAS refresh, RAS-only refresh and Hidden refresh capabilities.

Furthermore, Self-refresh operation is available in L-version. This 16Mx4 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

- K4F660412B-JC/L(3.3V, 8K Ref., SOJ)

- K4F640412B-JC/L(3.3V, 4K Ref., SOJ)

- K4F660412B-TC/L(3.3V, 8K Ref., TSOP)

- K4F640412B-TC/L(3.3V, 4K Ref., TSOP)

• CAS-before-RAS refresh capability

• RAS-only and Hidden refresh capability

• Self-refresh capability (L-ver only)

• Fast parallel test mode capability

• LVTTL(3.3V) 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

• +3.3V±0.3V power supply

Speed

-45

360

324

288

468

432

396

-50

-60

• Refresh Cycles

Part

NO.

Refresh

cycle

Refresh time

FUNCTIONAL BLOCK DIAGRAM

Normal

L-ver

K4F660412B*

K4F640412B

RAS

CAS

64ms

128ms

Vcc

Vss

Control

Clocks

VBB Generator

* Access mode & RAS only refresh mode

: 8K cycle/64ms(Normal), 8K cycle/128ms(L-ver.)

CAS-before-RAS & Hidden refresh mode

: 4K cycle/64ms(Normal), 4K cycle/128ms(L-ver.)

Row Decoder

Refresh Timer

Refresh Control

Data in

Buffer

Memory Array

16,777,216 x 4

Cells

DQ0

DQ3

Refresh Counter

Row Address Buffer

Col. Address Buffer

• Performance Range

Speed

Data out

Buffer

tRAC

45ns

50ns

60ns

tCAC

12ns

13ns

15ns

tRC

tPC

A0~A12

(A0~A11)*1

-45

-50

-60

80ns

90ns

110ns

31ns

35ns

40ns

A0~A10

(A0~A11)*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

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与K4F640412B-JC50相关器件

型号	品牌	描述	获取价格	数据表
K4F640412B-JC60	SAMSUNG	Fast Page DRAM, 16MX4, 60ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32	获取价格
K4F640412B-JL45	SAMSUNG	Fast Page DRAM, 16MX4, 45ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32	获取价格
K4F640412B-JL60	SAMSUNG	Fast Page DRAM, 16MX4, 60ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32	获取价格
K4F640412B-JL600	SAMSUNG	Fast Page DRAM, 16MX4, 60ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, SOJ-32	获取价格
K4F640412B-TC45	SAMSUNG	Fast Page DRAM, 16MX4, 45ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, TSOP2-32	获取价格
K4F640412B-TL50	SAMSUNG	Fast Page DRAM, 16MX4, 50ns, CMOS, PDSO32, 0.400 INCH, PLASTIC, TSOP2-32	获取价格