參數(shù)資料
型號(hào): K4D551638D-TC36
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 256Mbit GDDR SDRAM
中文描述: 片256Mbit GDDR SDRAM內(nèi)存
文件頁(yè)數(shù): 16/18頁(yè)
文件大?。?/td> 230K
代理商: K4D551638D-TC36
256M GDDR SDRAM
K4D551638D-TC
- 16 -
Rev 1.8 (Oct. 2003)
AC CHARACTERISTICS (II)
(Unit : Number of Clock)
K4D551638D-TC2A
Frequency
350MHz ( 2.86ns )
300MHz ( 3.3ns )
275MHz ( 3.6ns )
250MHz ( 4.0ns )
222MHz ( 4.5ns )
200MHz ( 5.0ns )
166MHz ( 6.0ns )
Cas Latency
4
4
4
4
4
3
3
tRC
15
15
15
13
12
12
10
tRFC
17
17
17
15
14
14
12
tRAS
10
10
10
9
8
8
7
tRCDRD
5
5
5
4
4
4
3
tRCDWR
3
3
3
2
2
2
2
tRP
5
5
5
4
4
4
3
tRRD
3
3
3
3
3
3
3
tDAL
8
8
8
7
7
7
6
Unit
tCK
tCK
tCK
tCK
tCK
tCK
tCK
K4D551638D-TC33
Frequency
300MHz ( 3.3ns )
275MHz ( 3.6ns )
250MHz ( 4.0ns )
222MHz ( 4.5ns )
200MHz ( 5.0ns )
166MHz ( 6.0ns )
Cas Latency
4
4
4
4
3
3
tRC
15
15
13
12
12
10
tRFC
17
17
15
14
14
12
tRAS
10
10
9
8
8
7
tRCDRD
5
5
4
4
4
3
tRCDWR
3
3
2
2
2
2
tRP
5
5
4
4
4
3
tRRD
3
3
3
3
3
3
tDAL
8
8
7
7
7
6
Unit
tCK
tCK
tCK
tCK
tCK
tCK
K4D551638D-TC36
Frequency
275MHz ( 3.6ns )
250MHz ( 4.0ns )
222MHz ( 4.5ns )
200MHz ( 5.0ns )
166MHz ( 6.0ns )
Cas Latency
4
4
4
3
3
tRC
15
13
12
12
10
tRFC
17
15
14
14
12
tRAS
10
9
8
8
7
tRCDRD
5
4
4
4
3
tRCDWR
3
2
2
2
2
tRP
5
4
4
4
3
tRRD
3
3
3
3
3
tDAL
8
7
7
7
6
Unit
tCK
tCK
tCK
tCK
tCK
K4D551638D-TC40
Frequency
250MHz ( 4.0ns )
222MHz ( 4.5ns )
200MHz ( 5.0ns )
166MHz ( 6.0ns )
Cas Latency
4
4
3
3
tRC
13
12
12
10
tRFC
15
14
14
12
tRAS
9
8
8
7
tRCDRD
4
4
4
3
tRCDWR
2
2
2
2
tRP
4
4
4
3
tRRD
3
3
3
3
tDAL
7
7
7
6
Unit
tCK
tCK
tCK
tCK
K4D551638D-TC50
Frequency
200MHz ( 5.0ns )
166MHz ( 6.0ns )
Cas Latency
3
3
tRC
12
10
tRFC
14
12
tRAS
8
7
tRCDRD
4
3
tRCDWR
2
2
tRP
4
3
tRRD
3
3
tDAL
7
6
Unit
tCK
tCK
K4D551638D-TC60
Frequency
166MHz ( 6.0ns )
Cas Latency
3
tRC
10
tRFC
12
tRAS
7
tRCDRD
3
tRCDWR
2
tRP
3
tRRD
3
tDAL
6
Unit
tCK
K4D551638D-TC45
Frequency
222MHz ( 4.5ns )
200MHz ( 5.0ns )
166MHz ( 6.0ns )
Cas Latency
4
3
3
tRC
12
12
10
tRFC
14
14
12
tRAS
8
8
7
tRCDRD
4
4
3
tRCDWR
2
2
2
tRP
4
4
3
tRRD
3
3
3
tDAL
7
7
6
Unit
tCK
tCK
tCK
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