K4D263238M Datasheet, PDF (17/19 Pages) Samsung semiconductor – 1M x 32Bit x 4 Banks Double Data Rate Synchronous RAM with Bi-directional Data Strobe and DLL

K4D263238M
128M DDR SDRAM
AC CHARACTERISTICS (II)
K4D263238M-QC45*
Frequency
Cas Latency tRC
222MHz ( 4.5ns )
4
13
200MHz ( 5.0ns )
3
12
183MHz ( 5.5ns )
3
12
166MHz ( 6.0ns )
3
10
143MHz ( 7.0ns )
3
9
K4D263238M-QC50
Frequency
Cas Latency tRC
200MHz ( 5.0ns )
3
12
183MHz ( 5.5ns )
3
12
166MHz ( 6.0ns )
3
10
143MHz ( 7.0ns )
3
9
K4D263238M-QC55
Frequency
Cas Latency tRC
183MHz ( 5.5ns )
3
12
166MHz ( 6.0ns )
3
10
143MHz ( 7.0ns )
3
9
K4D263238M-QC60
Frequency
Cas Latency tRC
166MHz ( 6.0ns )
3
10
143MHz ( 7.0ns )
3
9
*
(Unit : Number of Clock)
tRFC
15
14
14
12
11
tRFC
14
14
12
11
tRFC
14
12
11
tRFC
12
11
tRAS tRCDRD tRCDWR
tRP
9
4
2
4
8
4
2
4
8
4
2
4
7
3
2
3
6
3
2
3
tRAS tRCDRD tRCDWR
tRP
8
4
2
4
8
4
2
4
7
3
2
3
6
3
2
3
tRAS tRCDRD tRCDWR
tRP
8
4
2
4
7
3
2
3
6
3
2
3
tRAS tRCDRD tRCDWR
tRP
7
3
2
3
6
3
2
3
tRRD
Unit
2
tCK
2
tCK
2
tCK
2
tCK
2
tCK
tRRD
Unit
2
tCK
2
tCK
2
tCK
2
tCK
tRRD
Unit
2
tCK
2
tCK
2
tCK
tRRD
Unit
2
tCK
2
tCK
- 17 -
Rev. 1.3 (Aug. 2001)