MB81F643242C-60FN View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB81F643242C-60FN

MEMORY CMOS 4 × 512 K × 32 BIT SYNCHRONOUS DYNAMIC RAM

Fujitsu 

MB81F643242C-60/-70/-10 Advanced Info (AE0.1E)

(Continued)

Current

State

CS RAS CAS WE

Addr

Command

Function

Notes

Pre-

HXXX

X

charging

L HHH

X

DESL

NOP

NOP (Idle after tRP)

NOP (Idle after tRP)

L HH L

X

BST

NOP (Idle after tRP)

L H L H BA, CA, AP READ/READA Illegal

*2

L H L L BA, CA, AP WRIT/WRITA Illegal

*2

L LHH

BA, RA

ACTV

Illegal

*2

L LHL

BA, AP

PRE/PALL

NOP (PALL may affect other

bank)

*5

L L LH

X

REF/SELF Illegal

LLLL

MODE

MRS

Illegal

Bank

HXXX

X

Activating

L HHH

X

DESL

NOP

NOP (Bank Active after tRCD)

NOP (Bank Active after tRCD)

L HH L

X

BST

NOP (Bank Active after tRCD)

L H L H BA, CA, AP READ/READA Illegal

*2

L H L L BA, CA, AP WRIT/WRITA Illegal

*2

L LHH

BA, RA

ACTV

Illegal

*2

L LHL

BA, AP

PRE/PALL Illegal

*2

L L LH

X

REF/SELF Illegal

LLLL

MODE

MRS

Illegal

(Continued)

11

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