MSM514262-70 datasheet(36/45 Pages) OKI

Part #	MSM514262-70

Description	262,144-Word x 4-Bit Multiport DRAM

Download	45 Pages

Scroll/Zoom	100%

Manufacturer	OKI [OKI electronic componets]

Direct Link	http://www.oki.com

Logo

36 / 45 page

¡ Semiconductor

MSM514262

36/45

OPERATION MODES

Table-1 shows the function truth table for a listing of all available RAM ports and transfer

operation of MSM514262.

The RAM port and data transfer operations are determined by the state of CAS, DT/OE, WB/

WE, SE and DSF at the falling edge of RAS and by the level of DSF at the falling edge of CAS.

Table-1. Function Truth Table

If the DSF is 'high" at the falling edge of RAS, special functions such as split transfer, flash write,

and load/read color register can be invoked. If the DSF is "low" at the falling edge of RAS and

"high" at the falling edge of CAS, the block write feature can be invoked.

If the DSF is "low" at the falling edge of RAS and CAS, only the conventional multiport DRAM

operating feature can be invoked.

RASØ

CAS DT/OE WB/WE DSF SE

CASØ

DSF

ADDRESS

RASØ CASØ

W/IO

RASØ CASØ CAS/WEØ

Write

Mask

Register

WM Color

Function

0*

**

*

10

00

0

10

00

1

10

01

*

10

*

10

11

*

11

00

*

11

00

*

11

01

*

11

10

*

11

10

*

11

*

—

*

0

1

*

0

1

*

Row

—

TAP

Column

*

Column

*

WM1

*

WM1

*

WM1

*

—

*

—

*

—

*

Din

—

*

Din

—

Color

—

WM1

—

WM1

—

WM1

—

Use

—

Use

Load

C.B.R Refresh

Masked Write Transfer

Pseudo Write Transfer

Split Write Transfer

Read Transfer

Split Read Transfer

Write per Bit

Masked Block Write

Masked Flash Write

Read Write

Block Write

Load Color Register

Column

A2c-8c

Column

Select

Column

A2c-8c

Column

Select

Load

Use

Load

Use

Load

Use

Load

Use

Load

Use

Similar Part No. - MSM514262-70

Manufacturer	Part #	Datasheet	Description
OKI electronic componet...	MSM514260C	263Kb / 16P	262,144-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
	MSM514260CSL	263Kb / 16P	262,144-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
	MSM514260E	144Kb / 15P	262,144-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
	MSM514260E	144Kb / 15P	262,144-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
	MSM514260E	184Kb / 14P	262,144-Word X 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE

More results

Similar Description - MSM514262-70

Manufacturer	Part #	Datasheet	Description
OKI electronic componet...	MSM514252A	358Kb / 33P	262,144-Word x 4-Bit Multiport DRAM
	MSM548262	464Kb / 37P	262,144-Word x 8-Bit Multiport DRAM
	MSM54V16272	369Kb / 39P	262,144-Word x 16-Bit Multiport DRAM
	MSM54V16282	368Kb / 39P	262,144-Word x 16-Bit Multiport DRAM
	MSM5416272	339Kb / 37P	262,144-Word x 16-Bit Multiport DRAM
	MSM5416282	367Kb / 37P	262,144-Word x 16-Bit Multiport DRAM
	MSM548263	392Kb / 40P	262,144-Word x 8-Bit Multiport DRAM
	MSM54V16283	389Kb / 42P	262,144-Word x 16-Bit Multiport DRAM
	MSM5416262	339Kb / 37P	262,144-Word x 16-Bit Multiport DRAM
	MSM5416263	359Kb / 40P	262,144-Word x 16-Bit Multiport DRAM

More results

MSM514262-70 Datasheet(PDF) 36 Page - OKI electronic componets

MSM514262-70 Datasheet(HTML) 36 Page - OKI electronic componets

Similar Part No. - MSM514262-70

Similar Description - MSM514262-70

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Datasheet Download

Link URL