KM4132G271A Datasheet, PDF (8/48 Pages) Samsung semiconductor – 128K x 32Bit x 2 Banks Synchronous Graphic RAM

KM4132G271A
CMOS SGRAM
FREQUENCY vs. AC PARAMETER RELATIONSHIP TABLE
KM4132G271A-8
Frequency
125MHz (8.0ns)
100MHz (10.0ns)
83MHz (12.0ns)
75MHz (13.4ns)
66MHz (15.0ns)
50MHz(20ns)
CAS
Latency
3
3
2
2
2
2
tRC
80ns
10
8
7
6
6
4
tRAS
48ns
6
5
4
4
4
3
tRP
24ns
3
3
2
2
2
2
tRRD
16ns
2
2
2
2
2
1
tRCD
16ns
2
2
2
2
2
1
tCCD
8ns
1
1
1
1
1
1
(Unit : number of clock)
tCDL
8ns
tRDL
8ns
tBWC
16ns
1
1
2
1
1
2
1
1
2
1
1
2
1
1
2
1
1
1
KM4132G271A-10
Frequency
100MHz (10.0ns)
83MHz (12.0ns)
71MHz (14.0ns)
66MHz (15.0ns)
50MHz (20.0ns)
40MHz(25ns)
CAS
Latency
3
3
2
2
2
2
tRC
80ns
8
7
6
6
4
4
tRAS
50ns
5
5
4
4
3
2
tRP
26ns
3
3
2
2
2
2
tRRD
20ns
2
2
2
2
1
1
tRCD
20ns
2
2
2
2
1
1
tCCD
10ns
1
1
1
1
1
1
(Unit : number of clock)
tCDL
tRDL
tBWC
10ns
10ns
20ns
1
1
2
1
1
2
1
1
2
1
1
2
1
1
1
1
1
1
KM4132G271A-12
Frequency
83MHz (12.0ns)
66MHz (15.0ns)
55MHz (18.2ns)
50MHz (20.0ns)
40MHz (25.0ns)
33MHz(30.0ns)
CAS
Latency
3
2
2
2
2
2
tRC
90ns
8
6
5
5
4
3
tRAS
60ns
5
4
4
3
3
2
tRP
30ns
3
2
2
2
2
1
tRRD
24ns
2
2
2
2
1
1
tRCD
24ns
2
2
2
2
1
1
tCCD
12ns
1
1
1
1
1
1
(Unit : number of clock)
tCDL
tRDL
tBWC
12ns
12ns
24ns
1
1
2
1
1
2
1
1
2
1
1
2
1
1
1
1
1
1
Rev.0 (August 1997)