MC-4532CD647XFA Ver la hoja de datos (PDF) - Elpida Memory, Inc

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MC-4532CD647XFA

32M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE

Elpida Memory, Inc 

MC-4532CD647XFA

Asynchronous Characteristics

Parameter

Symbol

-A 75

Unit

MIN.

MAX.

ACT to REF/ACT command period (operation)

REF to REF/ACT command period (refresh)

ACT to PRE command period

PRE to ACT command period

Delay time ACT to READ/WRITE command

ACT(one) to ACT(another) command period

Data-in to PRE command period

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

period (Auto precharge)

/CAS latency = 2

Mode register set cycle time

Transition time

Refresh time (4,096 refresh cycles)

tRC

tRC1

tRAS

tRP

tRCD

tRRD

tDPL

tDAL3

tDAL2

tRSC

tT

tREF

67.5

67.5

45

20

20

15

8

1CLK+22.5

1CLK+20

2

0.5

120,000

30

64

ns

ns

ns

ns

ns

ns

ns

ns

ns

CLK

ns

ms

Note This device can satisfy the tDAL3 spec of 1CLK+20 ns for up to and including 125 MHz operation.

Note

1

1

Data Sheet E0230N20 (Ver. 2.0)

9

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