M2V64S20DTP データシートの表示（PDF） - Mitsumi
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M2V64S20DTP Datasheet PDF : 51 Pages
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MITSUBISHI LSIs
SDRAM (Rev.3.2)
Feb.'00
M2V64S20DTP-6,-6L,-7,-7L,-8,-8L (4-BANK x 4,194,304-WORD x 4-BIT)
M2V64S30DTP-6,-6L,-7,-7L,-8,-8L (4-BANK x 2,097,152-WORD x 8-BIT)
M2V64S40DTP-6,-6L,-7,-7L,-8,-8L (4-BANK x 1,048,576-WORD x 16-BIT)
64M Synchronous DRAM
FUNCTION TRUTH TABLE (continued)
Current State /CS /RAS /CAS /WE Address
Command Action
READ
WRIT E
H X X XX
DESEL NOP (Continue Burst to END)
L H H HX
NOP NOP (Continue Burst to END)
L H H LX
TBST Terminate Burst
READ Terminate Burst, Latch CA, Begin New
L H L H BA, CA, A10
/READA Read, Determine Auto-Precharge*3
WRITE & Terminate Burst, Latch CA, Begin
L
HL
L BA, CA, A10 WRITEA Write, Determine Auto-Precharge*3
L
L H H BA, RA
ACT Bank Active / ILLEGAL*2
L
L H L BA, A10
PRE &
Terminate Burst, Precharge
PREA
L
L
L
HX
REFA ILLEGAL
Op-Code,
L
L
L
L
Mode-Add
MRS ILLEGAL
H X X XX
DESEL NOP (Continue Burst to END)
L H H HX
NOP NOP (Continue Burst to END)
L H H LX
TBST Terminate Burst
READ & Terminate Burst, Latch CA, Begin
L H L H BA, CA, A10
READA Read, Determine Auto-Precharge*3
L
HL
L BA, CA, A10 WRITE & Terminate Burst, Latch CA,Begin
WRITEA Write, Determine Auto-Precharge*3
L
L H H BA, RA
ACT Bank Active / ILLEGAL*2
L
L H L BA, A10
PRE & Terminate Burst, Precharge
PREA
L
L
L
HX
REFA ILLEGAL
L
L
L
L Op-Code,
Mode-Add
MRS ILLEGAL
MITSUBISHI ELECTRIC
8
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