音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

ICS951901YFLF-T Datasheet

  • ICS951901YFLF-T

  • Programmable Frequency Generator & Integrated Buffers for Pe...

  • 19頁(yè)

  • ICS

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

Integrated
Circuit
Systems, Inc.
ICS951901
Programmable Frequency Generator & Integrated Buffers for Pentium
III
Processor
Recommended Application:
Single chip clock solution for IA platform.
Output Features:
鈥?/div>
3 - CPU @ 2.5V
鈥?/div>
13 - SDRAM @ 3.3V
鈥?/div>
6 - PCI @3.3V,
鈥?/div>
2 - AGP @ 3.3V
鈥?/div>
1 - 48MHz, @3.3V fixed.
鈥?/div>
1 - 24/48MHz, @3.3V selectable by I
2
C
(Default is 24MHz)
鈥?/div>
2 - REF @3.3V, 14.318MHz.
Features:
鈥?/div>
Programmable ouput frequency.
鈥?/div>
Programmable ouput rise/fall time.
鈥?/div>
Programmable SDRAM and CPU skew.
鈥?/div>
Spread spectrum for EMI control typically
by 7dB to 8dB,
with programmable spread percentage.
鈥?/div>
Watchdog timer technology to reset system
if over-clocking causes malfunction.
鈥?/div>
Uses external 14.318MHz crystal.
鈥?/div>
FS pins for frequency select
Skew Specifications:
鈥?/div>
CPU - CPU: < 175ps
鈥?/div>
SDRAM - SDRAM < 250ps (except SDRAM12)
鈥?/div>
PCI - PCI: < 500ps
鈥?/div>
CPU (early) - PCI: 1-4ns (typ. 2ns)
Pin Configuration
VDDA
*
(AGPSEL)REF0
1
*(FS3)REF1
GND
X1
X2
VDDPCI
*(FS1)PCICLK_F
*(FS2)PCICLK0
PCICLK1
PCICLK2
PCICLK3
PCICLK4
GND
VDDAGP
AGPCLK0
AGPCLK1
GND
GND
*(FS0)48MHz
*(MODE)24_48MHz
VDD48
SDATA
SCLK
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
VDDL
CPUCLK0
CPUCLK1
CPUCLK2
GND
VDDSDR
SDRAM0
SDRAM1
SDRAM2
GND
SDRAM3
SDRAM4
SDRAM5
VDDSDR
SDRAM6
SDRAM7
GND
SDRAM8/PD#
SDRAM9/SDRAM_STOP#
GND
SDRAM10/PCI_STOP#
SDRAM11/CPU_STOP#
SDRAM12
VDDSDR
48-Pin 300mil SSOP
* These inputs have a 120K pull down to GND.
1
These are double strength.
Block Diagram
PLL2
/2
X1
X2
XTAL
OSC
PLL1
Spread
Spectrum
48MHz
24_48MHz
Functionality
Bit2
FS3
Bit7
FS2
Bit6
FS1
Bit5
FS0
Bit4
CPU
MHz
SDRAM
MHz
PCI
MHz
AGP1
SEL=1
AGP0
SEL=0
2
REF(1:0)
CPU
DIVDER
Stop
3
CPUCLK (2:0)
SDRAM
DIVDER
Stop
13
SDRAM (12:0)
SDATA
SCLK
FS(3:0)
PD#
PCI_STOP#
CPU_STOP#
SDRAM_STOP#
MODE
AGP_SEL
Control
Logic
PCI
DIVDER
Stop
5
PCICLK (4:0)
PCICLK_F
AGP
DIVDER
Config.
Reg.
2
AGP (1:0)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
66.67
66.67
66.67
75.00
83.31
90.00
95.00
100.00
100.00
100.00
105.00
112.00
117.99
124.09
133.34
133.34
ICS951901
66.67
100.00
133.34
75.00
83.31
90.00
95.00
66.67
100.00
133.34
105.00
112.00
117.99
124.09
100.00
133.34
33.33
33.33
33.33
37.50
33.32
30.00
31.67
33.33
33.33
33.33
35.00
33.60
35.40
31.02
33.33
33.33
66.67
66.67
66.67
75.00
66.64
60.00
63.33
66.67
66.67
66.67
70.00
67.20
70.80
62.05
66.67
66.67
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
0670B鈥?7/15/04

ICS951901YFLF-T相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    32 KhZ Motherboard Frequency Generator
    ICS
  • 英文版
    32 KhZ Motherboard Frequency Generator
    ICST [Inte...
  • 英文版
    High Frequency System Clock Generator
    ICS
  • 英文版
    High Frequency System Clock Generator
    ICST [Integrate...
  • 英文版
    Rambus XDR Clock Generator
    ICST [Integrate...
  • 英文版
    Direct Rambus Clock Generator Lite
    ICS
  • 英文版
    Direct Rambus Clock Generator Lite
    ICST [Integrate...
  • 英文版
    133MHz Clock Generator and Integrated Buffer for PowerPC⑩
    ICS
  • 英文版
    133MHz Clock Generator and Integrated Buffer for PowerPC??
    ICST [Integrate...
  • 英文版
    133MHz Clock Generator and Integrated Buffer for PowerPC⑩
    ICS
  • 英文版
    133MHz Clock Generator and Integrated Buffer for PowerPC??
    ICST [Integrate...
  • 英文版
    Dual Voltage Video/Memory Clock Generator
    ICS
  • 英文版
    Dual Voltage Video/Memory Clock Generator
    ICST [Inte...
  • 英文版
    Analog IC
    ETC
  • 英文版
    Analog IC
    ETC
  • 英文版
    High Performance Communication Buffer
    ICS
  • 英文版
    High Performance Communication Buffer
    ICST [Inte...
  • 英文版
    High performance Communication Buffer
    ICS
  • 英文版
    High performance Communication Buffer
    ICST [Inte...
  • 英文版
    32 kHz Motherboard Frequency Generator
    ICS

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見(jiàn)，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見(jiàn)一經(jīng)采納，將有感恩紅包奉上哦！