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參數(shù)資料
| 型號(hào)： | K4H560438D-GCB0 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | DDR 256Mb |
| 中文描述： | 的DDR 256Mb的 |
| 文件頁數(shù)： | 25/26頁 |
| 文件大?。?/td> | 291K |
| 代理商： | K4H560438D-GCB0 |
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- 25 -
DDR SDRAM
Rev. 2.2 Mar. ’03
K4H561638D
8. I/O Setup/Hold Plateau Derating
I/O Input Level
This derating table is used to increase tDS/tDH in the case where the input level is flat below VREF
±
310mV for a duration of
up to 2ns.
9. I/O Delta Rise/Fall Rate(1/slew-rate) Derating
tDS
tDH
(ns/V)
(ps)
(ps)
This derating table is used to increase t
DS
/t
DH
in the case where the DQ and DQS slew rates differ. The Delta Rise/Fall Rate
is calated as 1/SlewRate1-1/SlewRate2. For example, if slew rate 1 = 5V/ns and slew rate 2 =.4V/ns then the Delta Rise/Fall
Rate =-0/5ns/V. Input S/H slew rate based on larger of AC-AC delta rise/fall rate and DC-DC delta rise/fall rate.
10. This parameter is fir system simulation purpose. It is guranteed by design.
11. For each of the terms, if not already an integer, round to the next highest integer. tCK is actual to the system clock cycle time.
tDS
tDH
(mV)
±
280
(ps)
+50
(ps)
+50
Delta Rise/Fall Rate
0
0
0
±
0.25
±
0.5
+50
+50
+100
+100
The following table specifies derating values for the specifications listed if the single-ended clock skew rate is less than 1.0V/ns.
tIH/tIS
(ps)
(ps)
1.0V/ns
0
0
CK slew rate
(Single ended)
tDSS/tDSH
tAC/tDQSCK
(ps)
0
tLZ(min)
(ps)
0
tHZ(max)
(ps)
0
0.75V/ns
0.5V/ns
+50
+100
+50
+100
+50
+100
-50
-100
+50
+100
<Reference>
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| K4H560438D-GCB3 | DDR 256Mb |
| K4H560438D-GLA2 | DDR 256Mb |
| K4H560438E-ZLB0 | Connector Kit; Contents Of Kit:C14610F0240001 24 position bulkhead housing double latch, C14610B0241021 24 position female insert wire protect, Without spring cover; For Use With:C146 Heavy Duty Industrial Connectors RoHS Compliant: Yes |
| K4H560438E-ZLB3 | Connector Kit; Contents Of Kit:C14610G0245001 24 position hood PG 21 double latch low profile side entry, C14610A0241021 24 position male insert wire protect, VN162100014 PG 21 gland bushing, For 0.433" - 0.866" diameter cable RoHS Compliant: Yes |
| K4H560438E-ZLA2 | Rectangular Industrial Connector Housing; Series:C-146; No. of Contacts:6; Gender:Female; Body Material:Aluminum Alloy; Connecting Termination:Screw; Features:Spring Cover; For Use With:C146 Rectangular Circular Connectors RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| K4H560438D-GCB3 | 制造商:Samsung Semiconductor 功能描述:DRAM Chip DDR SDRAM 256M-Bit 64Mx4 2.5V 60-Pin FBGA Tray |
| K4H560438D-GLA2 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DDR 256Mb |
| K4H560438D-GLB0 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DDR 256Mb |
| K4H560438D-GLB3 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DDR 256Mb |
| K4H560438D-NC | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:256Mb sTSOPII |
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