KM4132G271B datasheet(10/51 Pages) SAMSUNG

部件名	KM4132G271B

功能描述	128K x 32bit x 2 Banks Synchronous Graphic RAM LVTTL

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制造商	SAMSUNG [Samsung semiconductor]

网页	http://www.samsung.com/Products/Semiconductor

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KM4132G271B

CMOS SGRAM

- 10

Rev. 2.4 (May 1998)

SIMPLIFIED TRUTH TABLE

(V=Valid, X=Don

′t Care, H=Logic High, L=Logic Low)

COMMAND

CKEn-1 CKEn

CS

RAS

CAS

WE

DSF

DQM

A9

A8

A7~ A0

Note

Register

Mode Register Set

H

X

L

X

OP CODE

1, 2

Special Mode Register Set

H

1,2,7

Refresh

Auto Refresh

H

L

H

L

X

3

Self

Refresh

Entry

L

3

Exit

L

H

L

H

X

3

H

X

3

Bank Active

& Row Addr.

Write Per Bit Disable

H

X

L

H

L

X

V

Row Address

4, 5

Write Per Bit Enable

H

4,5,9

Read &

Column Address

Auto Precharge Disable

H

X

L

H

L

H

L

X

V

L

Column

Address

4

Auto Precharge Enable

H

4, 6

Write &

Column Address

Auto Precharge Disable

H

X

L

H

L

X

V

L

Column

Address

4, 5

Auto Precharge Enable

H

4,5,6,9

Block Write &

Column Addr.

Auto Precharge Disable

H

X

L

H

L

H

X

V

L

Column

Address

4, 5

Auto Precharge Enable

H

4,5,6,9

Burst Stop

H

X

L

H

L

X

7

Precharge

Bank Selection

H

X

L

H

L

X

V

L

X

Both Banks

X

H

Clock Suspend or

Active Power Down

Entry

H

L

H

X

H

X

Exit

L

H

X

Precharge Power Down Mode

Entry

H

L

H

X

H

X

Exit

L

H

L

V

X

H

X

DQM

H

X

V

X

8

No Operation Command

H

X

L

H

X

H

X

1. OP Code : Operand Code

A0 ~ A9 : Program keys. (@MRS)

A5, A6 : LMR or LCR select. (@SMRS)

Color register exists only one per DQi which both banks share.

So dose Mask Register.

Color or mask is loaded into chip through DQ pin.

2. MRS can be issued only at both banks precharge state.

SMRS can be issued only if DQ

′s are idle.

A new command can be issued at the next clock of MRS/SMRS.

Note :

类似零件编号 - KM4132G271B

制造商	部件名	数据表	功能描述
Samsung semiconductor	KM4132G271A	1,000Kb / 48P	128K x 32Bit x 2 Banks Synchronous Graphic RAM
	KM4132G271A-10	1,000Kb / 48P	128K x 32Bit x 2 Banks Synchronous Graphic RAM
	KM4132G271A-12	1,000Kb / 48P	128K x 32Bit x 2 Banks Synchronous Graphic RAM
	KM4132G271A-8	1,000Kb / 48P	128K x 32Bit x 2 Banks Synchronous Graphic RAM
	KM4132G271AQ-10	1,000Kb / 48P	128K x 32Bit x 2 Banks Synchronous Graphic RAM

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类似说明 - KM4132G271B

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Samsung semiconductor	KM4132G271A	1,000Kb / 48P	128K x 32Bit x 2 Banks Synchronous Graphic RAM
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