k4h281638d Samsung Semiconductor, Inc., k4h281638d Datasheet - Page 34
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k4h281638d
Manufacturer Part Number
k4h281638d
Description
128mb D-die X16 Ddr Sdram
Manufacturer
Samsung Semiconductor, Inc.
Datasheet
1.K4H281638D.pdf
(52 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
k4h281638d-TCA2
Manufacturer:
SAMSUNG
Quantity:
660
128Mb D-die(x16) DDR SDRAM
5. Functional Truth Table
Current State
PRECHARGE
STANDBY
STANDBY
ACTIVE
READ
CS
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
RAS CAS
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
W E
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
Table 9-1. Functional truth table
X
BA, CA, A
BA, RA
BA, A
X
Op-Code, Mode-Add
X
BA, CA, A
BA, CA, A
BA, RA
BA, A
X
Op-Code, Mode-Add
X
BA, CA, A
BA, CA, A
BA, RA
BA, A
X
Op-Code, Mode-Add
10
10
10
Address
- 34 -
1 0
1 0
1 0
1 0
1 0
Burst Stop
READ/WRITE
Active
PRE/PREA
Refresh
MRS
Burst Stop
READ/READA
WRITE/WRITEA
Active
PRE/PREA
Refresh
MRS
Burst Stop
READ/READA
WRITE/WRITEA
Active
PRE/PREA
Refresh
MRS
Command
REV. 0.6 Oct. 21. 2002
ILLEGAL*2
ILLEGAL*2
Bank Active, Latch RA
ILLEGAL*4
AUTO-Refresh*5
Mode Register Set*5
NOP
Begin Read, Latch CA,
Determine Auto-Precharge
Begin Write, Latch CA,
Determine Auto-Precharge
Bank Active/ILLEGAL*2
Precharge/Precharge All
ILLEGAL
ILLEGAL
Terminate Burst
Terminate Burst, Latch CA,
Begin New Read, Determine
Auto-Precharge*3
ILLEGAL
Bank Active/ILLEGAL*2
Terminate Burst, Precharge
ILLEGAL
ILLEGAL
Action