MC-458CB64ESB データシートの表示（PDF） - NEC => Renesas Technology

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MC-458CB64ESB

8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE (SO DIMM)

NEC => Renesas Technology 

MC-458CB64ESB, 458CB64PSB

Asynchronous Characteristics

Parameter

Symbol

-A 10B

Unit

MIN.

MAX.

REF to REF/ACT command period

tRC

ACT to PRE command period

tRAS

PRE to ACT command period

tRP

Delay time ACT to READ/WRITE command

tRCD

ACT(0) to ACT(1) command period

tRRD

Data-in to PRE command period

tDPL

Data-in to ACT(REF) command /CAS latency = 3

tDAL3

period (Auto precharge)

/CAS latency = 2

tDAL2

Mode register set cycle time

tRSC

Transition time

tT

Refresh time (4,096 refresh cycles)

tREF

90

60

30

30

20

10

1CLK+30

1CLK+30

2

1

120,000

30

64

ns

ns

ns

ns

ns

ns

ns

ns

CLK

ns

ms

Note

Data Sheet M12263EJAV0DS00

9

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