km4132g271b Samsung Semiconductor, Inc., km4132g271b Datasheet - Page 49

• Manufacturer Part Number: km4132g271b
• Description: 128k X 32bit X 2 Banks Synchronous Graphic Ram Lvttl
• Manufacturer: Samsung Semiconductor, Inc.

KM4132G271B
FUNCTION TRUTH TABLE(TABLE 1, Continued)
Precharging
Recovering
Refreshing
Precharge
Precharge
Read with
Write with
Activating
Current
State
Block
Write
Write
Auto
Auto
Row
CS
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
RAS
X
H
H
H
H
X
H
H
H
H
X
H
H
H
X
H
H
H
X
H
H
H
X
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CAS
H
H
H
X
H
H
H
X
H
H
H
X
H
H
H
H
X
H
H
H
H
X
H
H
H
H
X
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
WE
H
X
X
H
H
X
X
X
H
H
X
X
X
H
X
H
X
X
H
X
H
X
X
H
X
H
X
X
X
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
DSF
X
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
(A
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
BA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
9
)
- 49
CA,AP
ADDR
CA,AP
CA,AP
RA,PA
CA,AP
CA,AP
RA,PA
CA,AP
CA,AP
RA
PA
RA
PA
RA
PA
RA
PA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
ILLEGAL
Term Burst : Precharge timing for Writes
ILLEGAL
ILLEGAL
NOP(Continue Burst to End --> Precharge)
NOP(Continue Burst to End --> Precharge)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP(Continue Burst to End --> Precharge)
NOP(Continue Burst to End --> Precharge)
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP --> Idle after
NOP --> Idle after
ILLEGAL
ILLEGAL
ILLEGAL
NOP --> Idle after
ILLEGAL
NOP --> Row Active after
NOP --> Row Active after
ILLEGAL
ILLEGAL
ILLEGAL
Term Block Write : Precharge timing for Block Write
ILLEGAL
NOP --> Row Active after
NOP --> Row Active after
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP --> Idle after
NOP --> Idle after
ILLEGAL
ILLEGAL
ILLEGAL
t
t
t
t
t
RP
RP
RP
RC
RC
ACTION
t
t
t
t
BWC
BWC
RCD
RCD
Rev. 2.4 (May 1998)
CMOS SGRAM
NOTE
2
3
2
2
2
2
2
2
2
2
2
4
2
2
2
2
2
2
2
2