H55S1G22MFP-60 datasheet(51/53 Pages) HYNIX

部件名	H55S1G22MFP-60

功能描述	1Gb (32Mx32bit) Mobile SDRAM

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制造商	HYNIX [Hynix Semiconductor]

网页	http://www.skhynix.com/kor/main.do

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51 / 53 page

Rev 1.2 / Jun. 2008

51

11

1Gbit (32Mx32bit) Mobile SDR Memory

H55S1G(2/3)2MFP Series

Special Operation for Low Power Consumption

Deep Power Down Mode

Deep Power Down Mode is an operating mode to achieve maximum power reduction by cutting the power of the whole

memory array of the devices.

Data will not be retained once the device enters Deep Power Down Mode.

Full initialization is required when the device exits from Deep Power Down Mode.

Truth Table

Deep Power Down Mode Entry

The Deep Power Down Mode is entered by having CS and WE held low with RAS and CAS high at the rising edge of

the clock, while CKE is low. The following diagram illustrates deep power down mode entry.

Current State

Command

CKEn-1

CKEn

CS

RAS

CAS

WE

Idle

Deep Power Down Entry

H

L

H

L

Deep Power Down

Deep Power Down Exit

L

H

XXXX

CKE

CS

RAS

CAS

WE

Pre-charge

if needed

tRP

Deep Power

Down Entry

类似零件编号 - H55S1G22MFP-60

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类似说明 - H55S1G22MFP-60

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