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參數資料
| 型號： | W83195R-08 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | XO, clock |
| 英文描述： | 150MHZ 4-DIMM Clock(頻率為150MHZ、3-DIMM 時鐘) |
| 中文描述： | 150 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56 |
| 封裝： | SSOP-56 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 230K |
| 代理商： | W83195R-08 |
W83195R-08
150MHZ 4-DIMM CLOCK
Publication Release Date: Mar. 1999
Revision 0.30
- 1 -
1.0 GENERAL DESCRIPTION
The W83195R-08 is a Clock Synthesizer which provides all clocks required for high-speed RISC or
CISC microprocessor such as Intel Pentium II. W83195R-08 provides sixteen CPU/PCI frequencies
which are externally selectable with smooth transitions. W83195R-08 also provides 17 SDRAM clocks
controlled by the none-delay buffer_in pin.
The W83195R-08 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.
Spread spectrum built in at
ó
0.5% or
ó
0.25% to reduce EMI. Programmable stopping individual
clock outputs and frequency selection through I
2
C interface. The device meets the Pentium power-up
stabilization, which requires CPU and PCI clocks be stable within 2 ms after power-up. Using dual
function pin for the slots(ISA, PCI, CPU, DIMM) is not recommend. The add on cards may have a
pull up or pull down.
High drive seven PCI and SDRAM CLOCK outputs typically provide greater than 1 V /ns slew rate
into 30 pF loads. Two CPU CLOCK outputs typically provide better than 1 V /ns slew rate into 20 pF
loads, when maintaining 50
ó
5% duty cycle. The fixed frequency outputs, such as REF, 24MHz and
48 MHz provide better than 0.5V /ns slew rate.
2.0 PRODUCT FEATURES
Supports Pentium
II CPU with I
2
C.
3 CPU clocks (one free-running CPU clock)
17 SDRAM clocks for 4 DIMs
7 PCI synchronous clocks
Two IOAPIC clocks for multiprocessor support
Optional single or mixed supply:
(Vddq1=Vddq2 = Vddq3 = Vddq4 = VddL1 =VddL2= 3.3V) or (Vddq1= Vddq2 = Vddq3=Vddq4 =
3.3V, VddL1 = VdqL2 = 2.5V)
< 250ps skew among CPU and SDRAM clocks
< 250ps skew among PCI clocks
< 5ns propagation delay SDRAM from buffer input
Skew from CPU(earlier) to PCI clock -1 to 4ns, center 2.6ns.
Smooth frequency switch with selections from 50 MHz to 133 MHz CPU
I
2
C 2-Wire serial interface and I
2
C read back
ó
0.25% or
ó
0.5% center type spread spectrum function to reduce EMI
Programmable registers to enable/stop each output and select modes
(mode as Tri-state or Normal )
MODE pin for power Management
One 48 MHz for USB & one 24 MHz for super I/O
56-pin SSOP package
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W83195WG-301 | 功能描述:IC CLOCK GENERATOR 56-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數:- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| W83195WG-382 | 功能描述:IC CLOCK GENERATOR 56-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數:- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| W83195WG-413 | 功能描述:IC CLOCK GENERATOR 56-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數:- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| W83195WG-416 | 功能描述:IC CLOCK GENERATOR 56-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數:- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| W83196G-718 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:VIA BUFFER CHIP (4 X DDR or 2 X DDR + 3 X SDRAM) |
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