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參數(shù)資料
| 型號(hào)： | W83194AR-WE |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | XO, clock |
| 英文描述： | 200MHZ CLOCK FOR WHITNEY CHIPSET |
| 中文描述： | 166 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大小： | 135K |
| 代理商： | W83194AR-WE |
W83194AR-73
150MHZ CLOCK FOR WHITNEY CHIPSET
Publication Release Date: May 1999
Revision 0.40
- 1 -
1.0 GENERAL DESCRIPTION
The W83194AR-73 is a Clock Synthesizer for Intel Whitney chipset. W83194AR-73 provides all
clocks required for high-speed RISC or CISC microprocessor and also provides 32 different
frequencies of CPU, SDRAM, PCI, 3V66, IOAPIC clocks frequency setting. All clocks are externally
selectable with smooth transitions.
The W83194AR-73 provides I
2
C serial bus interface to program the registers to enable or disable
each clock outputs and provides 0.25% center and 0-0.5% down type spread spectrum to reduce EMI.
The W83194AR-73 accepts a 14.318 MHz reference crystal as its input and runs on a 3.3V supply.
High drive PCI and SDRAM CLOCK outputs typically provide greater than 1 V /ns slew rate into 30
pF loads. CPU CLOCK outputs typically provide better than 1 V /ns slew rate into 20 pF loads as
maintaining 50
ó
5% duty cycle. The fixed frequency outputs as REF, 24MHz, and 48 MHz provide
better than 0.5V /ns slew rate.
1.0 PRODUCT FEATURES
2 CPU clocks
9 SDRAM clocks for 2 DIMMs
8 PCI synchronous clocks.
Optional single or mixed supply:
(VDDR = VDDP=VDDS = VDD48 = VDD3 = 3.3V, VDDA=VDDC=2.5V)
Skew form CPU to PCI clock -1 to 4 ns, center 2.6 ns
Smooth frequency switch with selections from 66.8 to 150MHz
I
2
C 2-Wire serial interface and I
2
C read back
0.25% center and 0-0.5% down type spread spectrum
Programmable registers to enable/stop each output and select modes
(mode as Tri-state or Normal )
48 MHz for USB
24 MHz for super I/O
Packaged in 48-pin SSOP
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| W83194BG-323 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:STEPLESS CLOCK FOR INTEL BROOKDALE CHIPSET |
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| W83194BG-703 | 功能描述:IC CLOCK GENERATOR 48-SSOP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 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(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| W83194BG-903 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:STEPLESS VIA PT/PM MAIN CLOCK GENERATOR |
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