HYB18L128160BF Datasheet, PDF(19/53 Page) Infineon Technologies AG

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HYB18L128160BF Datasheet, PDF (19/53 Pages) Infineon Technologies AG – DRAMs for Mobile Applications

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2.4.3 MODE REGISTER SET

HY[B/E]18L128160B[C/F]-7.5

128-Mbit Mobile-RAM

Functional Description

CLK

CKE

RAS

CAS

A0-A11

BA0,BA1

(High)

Code

= Don't Care

Figure 7 Mode Register Set Command

The Mode Register and Extended Mode Register are loaded via inputs A0 - A11 (see mode register descriptions

in Chapter 2.2). The MODE REGISTER SET command can only be issued when all banks are idle and no bursts

are in progress. A subsequent executable command cannot be issued until tMRD is met.

CLK

Command

MRS

Address

Code

NOP

tMRD

Valid

= Don't Care

Code = Mode Register / Extended Mode Register selection

(BA0, BA1) and op-code (A0 - A11)

Figure 8 Mode Register Definition

Table 8 Timing Parameters for Mode Register Set Command

Parameter

Symbol

min.

MODE REGISTER SET command period

tMRD

- 7.5

max.

Units Notes

tCK

Data Sheet

V1.4, 2004-04-30

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