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HYM72V4015GS

4M × 72-Bit EDO-DRAM Module (ECC - Module)

Siemens AG 

HYM72V4005/15GS-50/-60

4M x 72-ECC EDO-Module

AC Characteristics (contd’ ) (note: 5,6,7,8)

TA = 0 to 70 °C,VCC = 3.3 ± 0.3 V

Parameter

Symbol

-50

min. max.

-60

min. max.

Unit Note

Hyper Page Mode Read-Modify-Write Cycle

Hyper page mode read-write cycle time tPRWC

CAS precharge to WE

tCPWD

CAS-before-RAS Refresh Cycle

CAS setup time

tCSR

CAS hold time

tCHR

RAS to CAS precharge time

tRPC

Write to RAS precharge time

tWRP

Write hold time referenced to RAS

tWRH

Presence Detect Read Cycle

PDE to valid presence detect data

PDE inactive to presence detects

inactive

tPD

tPDOFF

60

–

70

–

ns 11

43

–

51

–

ns 11,21

12

–

12

–

ns 11

8

–

8

– ns 10

5

–

5

– ns

12

–

12

– ns 11

8

–

8

– ns 10

–

10

–

10 ns

0

10

0

10 ns

Semiconductor Group

9

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