Transcend TS64MSD64V3J Datasheet download pdf (Page 8)

200PIN DDR333 Unbuffered SO-DIMM

512MB With 64Mx8 CL2.5

Transcend Information Inc.

AC Timing Parameters & Specifications

(These AC characteristics were tested on the Component)

Parameter Symbol Min Max Unit Note

Row cycle time tRC 60 ns

Refresh row cycle time tRFC 72 ns

Row active time tRAS 42 70K ns

/RAS to /CAS delay tRCD 18 ns

Row active to Row active delay tRP 18 ns

Row active to Row active delay tRRD 12 ns

Write recovery time tWR 15 tCK

Last data in to Read command tCDLR 1 tCK

Col. Address to Col. Address delay tCCD 1 tCK

Clock cycle time tCK 6 12 ns 4

Clock high level width tCH 0.45 0.55 tCK

Clock low level width tCL 0.45 0.55 tCK

DQS-out access time from CK /CK tDQSCK -0.6 0.6 ns

Output data access time from CK /CK tAC -0.7 0.7 ns

Data strobe edge to output data edge tDQSQ 0.45 ns 4

Read Preamble tRPRE 0.9 1.1 tCK

Read Postamble tRPST 0.4 0.6 tCK

CK to valid DQS-in tDQSS 0.75 1.25 tCK

DQS-in setup time tWPRES 0 ns 2

DQS-in hold time tWPREH 0.25 tCK

DQS falling edge to CK rising-setup time tDSS 0.2 tCK

DQS falling edge from CK rising-hold time tDSH 0.2 tCK

DQS-in high level width tDQSH 0.35 tCK

DQS-in low level width tDQSL 0.35 tCK

DQS-in cycle time tDSC 0.9 1.1 tCK

Address and Control input setup time tIS 0.75 ns

Address and Control input hold time tIH 0.75 ns

Data-out high-impedance time from CK, /CK tHZ -0.7 0.7 ns

Data-out low-impedance time from CK, /CK tLZ -0.7 0.7 ns

Mode register set cycle time tMRD 15 ns

DQ & DM setup time to DQS tDS 0.45 ns

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Transcend TS64MSD64V3J Datasheet Page 8