K4H281638B-TCB0000 Samsung Semiconductor, K4H281638B-TCB0000 Datasheet - Page 37

• Manufacturer Part Number: K4H281638B-TCB0000
• Manufacturer: Samsung Semiconductor

Specifications of K4H281638B-TCB0000

• Lead Free Status / Rohs Status: Supplier Unconfirmed

128Mb DDR SDRAM
PRECHARGE
RECHARGE
Current State
WRITE with
READ with
(WRITEA)
(READA)
WRITE
AUTO
AUTO
*7
*6
CS
L
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
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
L
W E
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
Table 9-2. Functional truth table
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
X
BA, CA, A
BA, CA, A
BA, RA
BA, A
X
Op-Code, Mode-Add
10
10
10
Address
- 37 -
1 0
1 0
1 0
1 0
1 0
1 0
Burst Stop
READ/READA
WRITE/WRITEA
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. 1.31 Nov. 3. 2001
ILLEGAL
Terminate Burst With DM=High,
Latch CA, Begin Read, Deter-
mine Auto-Precharge*3
Terminate Burst, Latch CA,
Begin new Write, Determine
Auto-Precharge*3
Bank Active/ILLEGAL*2
Terminate Burst With DM=High,
Precharge
ILLEGAL
ILLEGAL
ILLEGAL
*6
ILLEGAL
*6
*6
ILLEGAL
ILLEGAL
ILLEGAL
*7
*7
*7
*7
ILLEGAL
ILLEGAL
Action