參數(shù)資料
型號(hào)： W199
廠商： IC WORKS INC
元件分類： XO, clock
英文描述： Spread Spectrum FTG for VIA Apollo Pro-133
中文描述： PROC SPECIFIC CLOCK GENERATOR, PDSO48
文件頁數(shù)： 1/14頁
文件大小： 154K
代理商： W199
PRELIMINARY
Spread Spectrum FTG for VIA Apollo Pro-133
W199
Cypress Semiconductor Corporation
3901 North First Street
San Jose
CA 95134
408-943-2600
October 19, 1999, rev. **
Features
Maximized EMI suppression using Cypress’s Spread
Spectrum Technology
Single-chip system frequency synthesizer for VIA
Apollo Pro-133
Two copies of CPU output
Six copies of PCI output
One 48-MHz output for USB
One 24-MHz output for SIO
Two buffered reference outputs
One IOAPIC output
13 SDRAM outputs provide support for 3 DIMMs
Supports frequencies up to 150 MHz
I
2
C interface for programming
Power management control inputs
Available in 48-pin SSOP
Key Specifications
CPU Cycle-to-Cycle Jitter: ......................................... 250 ps
CPU to CPU Output Skew: ........................................ 175 ps
PCI to PCI Output Skew: ............................................ 500 ps
V
DDQ3
: .................................................................... 3.3V±5%
V
DDQ2
: .................................................................... 2.5V±5%
SDRAMIN to SDRAM0:11 Delay: ..........................3.7 ns typ.
SDRAM0:11 (leads) to SDRAM_F Skew:..............0.4 ns typ.
Table 1. Mode Input Table
Mode
0
1
Pin 2
PCI_STOP#
REF0
Table 2. Pin Selectable Frequency
Input Address
FS3
FS2
FS1
1
1
1
1
1
1
1
1
0
1
1
0
1
0
1
1
0
1
1
0
0
1
0
0
0
1
1
0
1
1
0
1
0
0
1
0
0
0
1
0
0
1
0
0
0
0
0
0
CPU_F,
CPU1 (MHz)
133.3
124
150
140
105
110
115
120
100
133.3
112
103
66.8
83.3
75
124
PCI_F, 1:5
(MHz)
33.3 (CPU/4)
31 (CPU/4)
37.5 (CPU/4)
35 (CPU/4)
35 (CPU/3)
36.7 (CPU/3)
38.3 (CPU/3)
40 (CPU/3)
33.3 (CPU/3)
44.43 (CPU/3)
37.3 (CPU/3)
34.3 (CPU/3)
33.4 (CPU/2)
41.7 (CPU/2)
37.5 (CPU/2)
41.3 (CPU/3)
FS0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
I
2
C is a trademark of Philips Corporation.
Note:
1.
Internal pull-up resistors should not be relied upon for setting I/O pins HIGH. Pin function with parentheses determined by MODE pin resistor strapping.
Unlike other I/O pins, input FS3 has an internal pull-down resistor.
Logic Block Diagram
Pin Configuration
[1]
VDDQ3
REF0/(PCI_STOP#)
GND
X1
X2
VDDQ3
PCI_F/MODE
PCI1/FS3
GND
PCI2
PCI3
PCI4
PCI5
VDDQ3
SDRAMIN
GND
SDRAM11
SDRAM10
VDDQ3
SDRAM9
SDRAM8
I
2
C
{
GND
SDATA
SCLK
W
VDDQ2
IOAPIC
REF1/FS2*
GND
CPU_F
CPU1
VDDQ2
CLK_STOP#
SDRAM_F
GND
SDRAM0
SDRAM1
VDDQ3
SDRAM2
SDRAM3
GND
SDRAM4
SDRAM5
VDDQ3
SDRAM6
SDRAM7
VDDQ3
48MHz/FS0*
24MHz/FS1*
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
VDDQ3
REF0/(PCI_STOP#)
REF1/FS2
VDDQ2
CPU1
PCI_F/MODE
PCI1/FS3
OSC
PLL Ref Freq
CStop
PLL 1
X2
VDDQ3
Stop
CStop
PCI2
PCI3
PCI4
48MHz/FS0
VDDQ3
PLL2
÷2,3,4
VDDQ2
CLK_STOP#
VDDQ3
IOAPIC
PCI5
2
C
LI
SCLK
I/O Pin
SDRAM0:11
SDRAMIN
12
Stop
CPU_F
÷2
SDRAM_F
相關(guān)PDF資料
PDF描述
W207B Spread Spectrum FTG for SiS540 and 630 Chipsets(應(yīng)用于SiS540 和630 芯片設(shè)置的寬頻譜FTG)
W208D FTG for Integrated Core Logic with 133-MHz FSB(帶133MHz FSB的應(yīng)用于集成核心邏輯器件的頻率定時(shí)發(fā)生器（FTG）)
W209C Frequency Generator for Integrated Core Logic with 133-MHz FSB
W209CH Frequency Generator for Integrated Core Logic with 133-MHz FSB
W20NK70Z N-CHANNEL 700V - 0.25W - 20A TO-247 Zener-Protected SuperMESH TM Power MOSFET
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W199ABMX-7 制造商:Magnecraft 功能描述:Relay;E-Mech;Power;DPDT;Cur-Rtg 40A;Ctrl-V 120AC;Vol-Rtg 277/28AC/DC;Screw 制造商:Magnecraft 功能描述:Electromechanical Relay DPDT 40A 120VAC 290Ohm
W199ABX-14 制造商:Magnecraft 功能描述:POWER RELAY DPDT 120VAC 40A PANEL 制造商:Magnecraft 功能描述:POWER RELAY, DPDT, 120VAC, 40A, PANEL 制造商:Magnecraft 功能描述:POWER RELAY, DPDT, 120VAC, 40A, PANEL; Relay Type:Power; Coil Voltage VAC Nom:120V; Contact Current Max:40A; Contact Voltage AC Nom:600V; Contact Voltage DC Nom:28V; Coil Resistance:290ohm; Contact Configuration:DPDT; Coil Type:AC ;RoHS Compliant: No 制造商:Magnecraft 功能描述:Electromechanical Relay DPDT 40A 120VAC 290Ohm
W199ADBX4 制造商:Magnecraft 功能描述:3-5 Days
W199ADBX-4 功能描述:通用繼電器 Power Relay SPST-NO-DM 40A 120AC RoHS:否 制造商:Omron Electronics 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)電流額定值:150 A 線圈電壓:24 VDC 線圈電阻:144 Ohms 線圈電流:167 mA 切換電壓:400 V 安裝風(fēng)格:Chassis 觸點(diǎn)材料:
W199ADEX-4 制造商:Magnecraft 功能描述: 制造商:Schneider Electric 功能描述:Power Relays 制造商:Magnecraft 功能描述:Electromechanical Relay SPST-NO-DM 50A 120VAC 290Ohm
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*