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2Gb: x4, x8, x16 DDR3 SDRAM - Micron

2Gb: x4, x8, x16 DDR3 SDRAM - Micron

2Gb: x4, x8, x16 DDR3 SDRAM - Micron

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PDF: 09005aef826aaadc<br />

<strong>Micron</strong> Technology, Inc. reserves the right to change products or specifications without notice.<br />

<strong>2Gb</strong>_<strong>DDR3</strong>_<strong>SDRAM</strong>.pdf – Rev. P 2/12 EN 82 � 2006 <strong>Micron</strong> Technology, Inc. All rights reserved.<br />

Table 57: Electrical Characteristics and AC Operating Conditions (Continued)<br />

Notes 1–8 apply to the entire table<br />

<strong>DDR3</strong>-800 <strong>DDR3</strong>-1066 <strong>DDR3</strong>-1333 <strong>DDR3</strong>-1600<br />

Parameter Symbol Min Max Min Max Min Max Min Max Unit Notes<br />

WRITE with auto BL8 (OTF, MRS)<br />

tWRAP- MIN = WL + 4 + WR + 1 CK<br />

precharge command to BC4OTF<br />

DEN<br />

power-down entry BC4MRS<br />

tWRAP- DEN<br />

MIN = WL + 2 + WR + 1<br />

Power-Down Exit Timing<br />

CK<br />

DLL on, any valid command, or DLL off to<br />

tXP MIN = greater of 3CK or 7.5ns; MIN = greater of 3CK or 6ns; CK<br />

commands not requiring locked DLL<br />

MAX = n/a<br />

MAX = n/a<br />

Precharge power-down with DLL off to<br />

commands requiring a locked DLL<br />

tXPDLL MIN = greater of 10CK or 24ns; MAX = n/a<br />

ODT Timing<br />

CK 28<br />

RTT synchronous turn-on delay ODTLon CWL + AL - 2CK CK 38<br />

RTT synchronous turn-off delay ODTLoff CWL + AL - 2CK CK 40<br />

RTT turn-on from ODTL on reference tAON –400 400 –300 300 –250 250 –225 225 ps 23, 38<br />

RTT turn-off from ODTL off reference tAOF 0.3 0.7 0.3 0.7 0.3 0.7 0.3 0.7 CK 39, 40<br />

Asynchronous RTT turn-on delay<br />

(power-down with DLL off)<br />

tAONPD MIN = 2; MAX = 8.5 ns 38<br />

Asynchronous RTT turn-off delay<br />

(power-down with DLL off)<br />

tAOFPD MIN = 2; MAX = 8.5 ns 40<br />

ODT HIGH time with WRITE command and<br />

BL8<br />

ODTH8 MIN = 6; MAX = n/a CK<br />

ODT HIGH time without WRITE command or<br />

with WRITE command and BC4<br />

ODTH4 MIN = 4; MAX = n/a<br />

Dynamic ODT Timing<br />

CK<br />

RTT,nom-to-RTT(WR) change skew ODTLcnw WL - 2CK CK<br />

RTT(WR)-to-RTT,nom change skew - BC4 ODTLcwn4 4CK + ODTLoff CK<br />

RTT(WR)-to-RTT,nom change skew - BL8 ODTLcwn8 6CK + ODTLoff CK<br />

RTT dynamic change skew tADC 0.3 0.7 0.3 0.7 0.3 0.7 0.3 0.7 CK 39<br />

Write Leveling Timing<br />

First DQS, DQS# rising edge tWLMRD 40 – 40 – 40 – 40 – CK<br />

DQS, DQS# delay tWLDQSEN 25 – 25 – 25 – 25 – CK<br />

Write leveling setup from rising CK, CK#<br />

crossing to rising DQS, DQS# crossing<br />

tWLS 325 – 245 – 195 – 165 – ps<br />

<strong>2Gb</strong>: <strong>x4</strong>, <strong>x8</strong>, <strong>x16</strong> <strong>DDR3</strong> <strong>SDRAM</strong><br />

Electrical Characteristics and AC Operating Conditions

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