M2S56D40ATP-75L View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
Manufacturer
M2S56D40ATP-75L Datasheet PDF : 37 Pages
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DDR SDRAM (Rev.1.0)
Jul. '01 Preliminary
MITSUBISHI LSIs
M2S56D20/ 30/ 40AKT
256M Double Data Rate Synchronous DRAM
FUNCTION TRUTH TABLE (continued)
Current State
WRITE(Auto-
Precharge
Disabled)
/CS /RAS /CAS /WE Address
H X X XX
L H H HX
L H H L BA
L H L H BA, CA, A10
Command
DESEL
NOP
TERM
READ / READA
LH
LL
LL
LL
LL
HX
READ with
LH
Auto-Precharge
LH
LH
LH
LL
LL
LL
LL
HX
WRITE with
LH
Auto-Precharge
LH
LH
LH
LL
LL
LL
LL
L L BA, CA, A10 WRITE / WRITEA
H H BA, RA
ACT
H L BA, A10
PRE / PREA
L HX
REFA
L
L Op-Code, Mode- MRS
Add
X XX
DESEL
H HX
NOP
H L BA
TERM
L H BA, CA, A10 READ / READA
L L BA, CA, A10 WRITE / WRITEA
H H BA, RA
ACT
H L BA, A10
PRE / PREA
L HX
REFA
Op-Code, Mode-
LL
MRS
Add
X XX
DESEL
H HX
NOP
H L BA
TERM
L H BA, CA, A10 READ / READA
L L BA, CA, A10 WRITE / WRITEA
H H BA, RA
ACT
H L BA, A10
PRE / PREA
L HX
REFA
Op-Code, Mode-
LL
MRS
Add
Action
NOP (Continue Burst to END)
NOP (Continue Burst to END)
ILLEGAL
Terminate Burst, Latch CA, Begin
Read, Determine Auto-Precharge
Terminate Burst, Latch CA, Begin
Write, Determine Auto-Precharge
Bank Active / ILLEGAL
Terminate Burst, Precharge
ILLEGAL
ILLEGAL
NOP (Continue Burst to END)
NOP (Continue Burst to END)
ILLEGAL
ILLEGAL for Same Bank
ILLEGAL for Same Bank
Bank Active / ILLEGAL
Precharge / ILLEGAL
ILLEGAL
ILLEGAL
NOP (Continue Burst to END)
NOP (Continue Burst to END)
ILLEGAL
ILLEGAL for Same Bank
ILLEGAL for Same Bank
Bank Active / ILLEGAL
Precharge / ILLEGAL
ILLEGAL
ILLEGAL
Notes
3
3
2
6
6
2
2
7
7
2
2
MITSUBISHI ELECTRIC
8
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