M2S56D20TP View Datasheet(PDF) - Mitsumi
Part Name
Description
Manufacturer
M2S56D20TP Datasheet PDF : 36 Pages
| |||
DDR SDRAM (Rev.0.0)
MITSUBISHI LSIs
Sep.'99 Preliminary
M2S56D20/ 30 TP
256M Double Data Rate Synchronous DRAM
FUNCTION TRUTH TABLE (continued)
Current State /CS /RAS /CAS /WE Address
WRITE
(Auto-
Precharge
Disabled)
H X X XX
L H H HX
L H H L BA
L H L H BA, CA, A10
L
H
L
L BA, CA, A10
L L H H BA, RA
L L H L BA, A10
L L L HX
Op-Code,
L
L
L
L
Mode-Add
READ with
H X X XX
AUTO
L H H HX
PRECHARGE L
H
H
L BA
L H L H BA, CA, A10
L
H
L
L BA, CA, A10
L L H H BA, RA
L L H L BA, A10
L L L HX
Op-Code,
L
L
L
L
Mode-Add
WRITE with
H
X
X
XX
AUTO
L H H HX
PRECHARGE L
H
H
L BA
L H L H BA, CA, A10
L
H
L
L BA, CA, A10
L L H H BA, RA
L L H L BA, A10
L L L HX
L
L
L
L Op-Code,
Mode-Add
Command
Action
Notes
DESEL NOP (Continue Burst to END)
NOP
TERM
NOP (Continue Burst to END)
ILLEGAL
Terminate Burst, Latch CA,
READ / READA Begin Read, Determine Auto- 3
Precharge
WRITE /
WRITEA
Terminate Burst, Latch CA,
Begin Write, Determine Auto- 3
Precharge
ACT
Bank Active / ILLEGAL
2
PRE / PREA Terminate Burst, Precharge
REFA
ILLEGAL
MRS
ILLEGAL
DESEL NOP (Continue Burst to END)
NOP
NOP (Continue Burst to END)
TERM
ILLEGAL
READ / READA ILLEGAL
WRITE /
WRITEA
ILLEGAL
ACT
Bank Active / ILLEGAL
2
PRE / PREA PRECHARGE/ILLEGAL
2
REFA
ILLEGAL
MRS
ILLEGAL
DESEL NOP (Continue Burst to END)
NOP
NOP (Continue Burst to END)
TERM
ILLEGAL
READ / READA ILLEGAL
WRITE /
WRITEA
ILLEGAL
ACT
Bank Active / ILLEGAL
2
PRE / PREA PRECHARGE/ILLEGAL
2
REFA
ILLEGAL
MRS
ILLEGAL
MITSUBISHI
ELECTRIC
8
Share Link: 