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參數(shù)資料
| 型號： | CYW256OXC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | 時鐘及定時 |
| 英文描述： | Multiconductor Paired Security UTP Cable; Number of Conductors:8; Conductor Size AWG:23; No. Strands x Strand Size:Solid; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:4; Impedance:100ohm; Jacket Color:Gray RoHS Compliant: Yes |
| 中文描述： | 256 SERIES, LOW SKEW CLOCK DRIVER, 12 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO28 |
| 封裝： | 5.30 MM, LEAD FREE, SSOP-28 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 176K |
| 代理商： | CYW256OXC |
W256
Document #: 38-07256 Rev. *C
Page 2 of 9
Pin Summary
Name
Pins
Description
SEL_DDR
28
Input to configure for DDR-ONLY mode or STANDARD SDRAM mode
.
1 = DDR-ONLY mode.
0 = STANDARD SDRAM mode.
When SEL_DDR is pulled HIGH or configured for DDR-ONLY mode, all the buffers
will be configured as DDR outputs.
Connect VDD3.3_2.5 to a 2.5V power supply in DDR-ONLY mode.
When SEL_DDR is pulled LOW or configured for STANDARD SDRAM output, all
the buffers will be configured as STANDARD SDRAM outputs.
Connect VDD3.3_2.5 to a 3.3V power supply in STANDARD SDRAM mode.
SMBus clock input
.
SMBus data input
.
Reference input from chipset
. 2.5V input for DDR-ONLY mode; 3.3V input for
STANDARD SDRAM mode.
Feedback clock for chipset
. Output voltage depends on VDD3.3_2.5V.
Active LOW input to enable Power Down mode; all outputs will be pulled LOW
.
Clock outputs
. These outputs provide copies of BUF_IN. Voltage swing depends
on VDD3.3_2.5 power supply.
Clock outputs
. These outputs provide complementary copies of BUF_IN when
SEL_DDR is active. These outputs provide copies of BUF_IN when SEL_DDR is
inactive. Voltage swing depends on VDD3.3_2.5 power supply.
Connect to 2.5V power supply when W256 is configured for DDR-ONLY mode
.
Connect to 3.3V power supply, when W256 is configured for standard SDRAM
mode.
Ground
.
SCLK
SDATA
BUF_IN
16
15
10
FBOUT
PWR_DWN#
DDR[0:5]T_SDRAM
[0,2,4,6,8,10]
DDR[0:5]C_SDRAM
[1,3,5,7,9, 11]
1
2
3, 7, 12, 19, 23, 27
4, 8, 13, 18, 22, 26
VDD3.3_2.5
5, 9, 14, 21, 25
GND
6, 11, 17, 20, 24
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CYW256OXCT | 功能描述:時鐘緩沖器 SDRAM & DDR Output Buff, W256 datasheet RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
| CYW305OXC | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Legacy-Sys Clk Intel RSolano Chip W305B RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| CYW305OXCT | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Legacy-Sys Clk Intel RSolano Chip W305B RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| CYW311OXC | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Sys Clk VIATM Pro266 DDR Chipset W311 DS RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| CYW311OXCT | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Sys Clk VIATM Pro266 DDR Chipset W311 DS RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
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