AS4C64M8D2 datasheet(25/59 Pages) ALSC

номер детали	AS4C64M8D2

подробное описание детали	Fully synchronous operation

PDF	59 Pages

Scroll/Zoom	100%

производитель	ALSC [Alliance Semiconductor Corporation]

домашняя страница	https://www.alliancememory.com

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25 / 59 page

AS4C64M8D2

Confidential

Rev. 1.0

Feb. /2014

tXARD

Exit active power down to read command

tCK

tXARDS

Exit active power down to read command(slow exit,

lower power)

8-AL

7-AL

tCK

1, 2

tAOND

ODT turn-on delay

tCK

tAON

ODT turn-on

tAC(min)

tAC(max)+0.7

tAC(min)

tAC(max)+0.7

6, 16, 38

tAONPD

ODT turn-on (Power-Down mode)

tAC(min)+2

2 tCK

+tAC(max)+1

tAC(min)+2

2 tCK

+tAC(max)+1

tAOFD

ODT turn-off delay

2.5

tCK

17, 42

tAOF

ODT turn-off

tAC(min)

tAC(max)+0.6

tAC(min)

tAC(max)+0.6

17, 41, 42

tAOFPD

ODT turn-off (Power-Down mode)

tAC(min)+2

2.5 tCK

+tAC(max)+1

tAC(min)+2

2.5 tCK

+tAC(max)+1

tANPD

ODT to power down entry latency

tCK

tAXPD

ODT power down exit latency

tCK

tMRD

Mode register set command cycle time

tCK

tMOD

MRS command to ODT update delay

tOIT

OCD drive mode output delay

tDelay

Minimum time clocks remains ON after CKE

asynchronously drops LOW

tIS+ tCK +tIH

tRFC

Refresh to active/Refresh command time

105

tREFI

Average periodic refresh

interval

@ 0℃≦TC≦ +85℃

7.8

s

@ +85℃＜TC≦ +95℃

3.9

s

tRCD

RAS# to CAS# Delay time

12.5

tRP

Row precharge Delay time

12.5

tRC

Row cycle Delay time

57.5

tRAS

Row active Delay time

70k

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