Q67100-Q2001 datasheet(8/10 Pages) SIEMENS

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Semiconductor Group

HYM 328020S/GS-50/-60

× 32-Bit

Early Write Cycle

Write command hold time

WCH

8–

–ns

Write command pulse width

8–

–ns

Write command setup time

WCS

0–

0–ns

Write command to RAS lead time

RWL

–

Write command to CAS lead time

CWL

–

Data setup time

tDS

0–

0–ns

Data hold time

tDH

–

Fast Page Mode Cycle

Fast page mode cycle time

tPC

–

CAS precharge time

tCP

–

Access time from CAS precharge

tCPA

–

RAS pulse width

tRAS

200k

CAS precharge to RAS Delay

tRHCP

–

CAS-before-RAS Refresh Cycle

CAS setup time

CSR

–

CAS hold time

CHR

–

RAS to CAS precharge time

RPC

5–

5–ns

Write to RAS precharge time

WRP

–

Write hold time referenced to RAS

WRH

–

AC Characteristics (cont’d)

5)6)

A = 0 to 70 °C,VCC = 5 V ± 10 %, tT = 5 ns

Parameter

Symbol

Limit Values

Unit

Note

-50

-60

min.

max.

min.

max.

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