Datasheet.kr   

ICS950905 데이터시트 PDF




Integrated Circuit Systems에서 제조한 전자 부품 ICS950905은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 ICS950905 자료 제공

부품번호 ICS950905 기능
기능 Programmable Timing Control Hub
제조업체 Integrated Circuit Systems
로고 Integrated Circuit Systems 로고


ICS950905 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.



전체 18 페이지수

미리보기를 사용할 수 없습니다

ICS950905 데이터시트, 핀배열, 회로
Integrated
Circuit
Systems, Inc.
ICS950905
Advance Information
Programmable Timing Control Hub™ for P4™
Recommended Application:
VIA P4X266 chipset with PC133 or DDR memory.
Output Features:
• 2 - Pair of differential CPU clocks @ 3.3V
• 1 - Pair of differential push pull CPU_CS clocks @ 2.5V
• 3 - AGP @ 3.3V
• 9 - PCI @ 3.3V
• 1- IOAPIC @ 2.5V
• 1 - 48MHz @ 3.3V fixed
• 1 - 24_48MHz @ 3.3V
• 1 - REF @ 3.3V, 14.318MHz
Features/Benefits:
• Programmable output frequency.
• Programmable output divider ratios.
• Programmable output rise/fall time.
• Programmable output skew.
Pin Configuration
1**SEL24_48/REF0
VDDREF
GND
X1
X2
VDD48
*FS3/48MHz
*FS2/24_48MHz
GND
*FS0/PCICLK_F
**FS1/PCICLK0
*MULTI_SEL/PCICLK1
GND
*WDTB/PCICLK2
**WDEN/PCICLK3
VDDPCI
PCICLK4
PCICLK5
PCICLK6
GND
PCICLK7
*PD#
AGPCLK0
VDDAGP
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 VDDLAPIC
47 GND
46 N/C
45 IOAPIC
44 GND
43 VDDCPU_PP (2.5V)
42 CPUCLK_PPT
41 CPUCLK_PPC
40 CPUCLKT_0
39 CPUCLKC_0
38 VDDCPU (3.3V)
37 I REF
36 GND
35 CPUCLKT_1
34 CPUCLKC_1
33 Vtt_PWRGD#
32 CPU_STOP#*
31 PCI_STOP#*
30 RESET#
29 SDATA
28 SCLK
27 AGPCLK2
26 AGPCLK1
25 GND
• Programmable spread percentage for EMI control.
• Watchdog timer technology to reset system
if system malfunctions.
• Programmable watch dog safe frequency.
• Support I2C Index read/write and block read/write
operations.
48-Pin 300-mil SSOP
1. These outputs have 2X drive strength.
* These inputs have a internal Pull-up resistor
of 120K to VDD
** These inputs have a internal pull-down to GND
• For DDR and or PC133 SDRAM system use ICS93718 Frequency Table
as the memory buffer.
• Uses external 14.318MHz crystal.
Key Specifications:
FS3
FS2
FS1
FS0
CPUCLK
MHz
AGP
MHz
PCICLK
MHz
CPU_CS - CPU0: <±250ps
• CPU_CS - AGP: <±250ps
• PCI - PCI: <500ps
• CPU - PCI: Min = 1.0ns, Typ = 2.0ns, Max = 4.0ns
Block Diagram
0 0 0 0 160.00 80.00 40.00
0 0 0 1 164.00 82.00 41.00
0 0 1 0 166.60 66.60 33.30
0 0 1 1 170.00 68.00 34.00
0 1 0 0 175.00 70.00 35.00
PLL2
X1 XTAL
X2 OSC
/2
48MHz
24_48MHz
REF0
0 1 0 1 180.00 72.00 36.00
0 1 1 0 185.00 74.00 37.00
0 1 1 1 190.00 76.00 38.00
1 0 0 0 66.80 66.80 33.40
1 0 0 1 100.90 67.27 33.63
PLL1
Spread
Spectrum
CPU
DIVDER
Stop
CPUCLKT_(1:0)
CPUCLKC_(1:0)
1 0 1 0 133.60 66.80 33.40
1 0 1 1 200.40 66.80 33.40
SEL24_48
SDATA
SCLK
FS (3:0)
PD#
PCI_STOP#
CPU_STOP#
MULTI_SEL
Vtt_PWRGD#
WDEN
WDTB
Control
Logic
Config.
Reg.
CPU
DIVDER
Stop
IOAPIC
DIVDER
PCI
DIVDER
Stop
AGP
DIVDER
CPUCLK_PPT
CPUCLK_PPC
IOAPIC
PCICLK (7:0)
PCICLK_F
AGPCLK (2:0)
3
RESET#
I REF
1 1 0 0 66.60 66.60 32.30
1 1 0 1 100.00 66.60 33.30
1 1 1 0 200.00 68.60 33.30
1 1 1 1 133.30 68.60 33.30
MULTISEL0
Board Target
Trace/Term Z
0 50 ohms
1 50 ohms
Reference R,
Iref =
VDD/(3*Rr)
Rr = 221 1%,
Iref = 5.00mA
Rr = 475 1%,
Iref = 2.32mA
Output
Current
Voh @ Z
Ioh = 4* I REF 1.0V @ 50
Ioh = 6* I REF 0.7V @ 50
950905 Rev - 11/26/01
ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.
ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.




ICS950905 pdf, 반도체, 판매, 대치품
Integrated
Circuit
Systems, Inc.
ICS950905
Advance Information
Byte 0: Functionality and frequency select register (Default=0)
Bit
Bit
(2,7:4)
Bit 3
Bit 1
Bit 0
Description
Bit2
Bit7
FS3
Bit6
FS2
Bit5
FS1
Bit4
FS0
CPUCLK AGPCLK
MHz MHz
PCICLK
MHz
Spread %
0 0 0 0 0 102.00 68.00 34.00 +/- 0.30% Center Spread
0 0 0 0 1 105.00 70.00 35.00 +/- 0.30% Center Spread
0 0 0 1 0 108.00 72.00 36.00 +/- 0.30% Center Spread
0 0 0 1 1 111.00 74.00 27.00 +/- 0.30% Center Spread
0 0 1 0 0 114.00 76.00 38.00 +/- 0.30% Center Spread
0 0 1 0 1 117.00 78.00 39.00 +/- 0.30% Center Spread
0 0 1 1 0 120.00 80.00 40.00 +/- 0.30% Center Spread
0 0 1 1 1 123.00 82.00 41.00 +/- 0.30% Center Spread
0 1 0 0 0 126.00 72.00 36.00 +/- 0.30% Center Spread
0 1 0 0 1 130.00 74.30 37.10 +/- 0.30% Center Spread
0 1 0 1 0 133.90 66.95 33.48 +/- 0.30% Center Spread
0 1 0 1 1 140.00 70.00 35.00 +/- 0.30% Center Spread
0 1 1 0 0 144.00 72.00 36.00 +/- 0.30% Center Spread
0 1 1 0 1 148.00 74.00 37.00 +/- 0.30% Center Spread
0 1 1 1 0 152.00 76.00 38.00 +/- 0.30% Center Spread
0 1 1 1 1 156.00 78.00 39.00 +/- 0.30% Center Spread
1 0 0 0 0 160.00 80.00 40.00 +/- 0.30% Center Spread
1 0 0 0 1 164.00 82.00 41.00 +/- 0.30% Center Spread
1 0 0 1 0 166.60 66.60 33.30 +/- 0.30% Center Spread
1 0 0 1 1 170.00 68.00 34.00 +/- 0.30% Center Spread
1 0 1 0 0 175.00 70.00 35.00 +/- 0.50% Center Spread
1 0 1 0 1 180.00 72.00 36.00 +/- 0.50% Center Spread
1 0 1 1 0 185.00 74.00 37.00 +/- 0.50% Center Spread
1 0 1 1 1 190.00 76.00 38.00 +/- 0.30% Center Spread
1 1 0 0 0 66.80 66.80 33.40 +/- 0.30% Center Spread
1 1 0 0 1 100.90 67.27 33.63 +/- 0.30% Center Spread
1 1 0 1 0 133.60 66.80 33.40 +/- 0.30% Center Spread
1 1 0 1 1 200.40 66.80 33.40 +/- 0.30% Center Spread
1 1 1 0 0 66.60 66.60 32.30 0 to - 0.6% Down Spread
1 1 1 0 1 100.00 66.60 33.30 0 to - 0.6% Down Spread
1 1 1 1 0 200.00 68.60 33.30 0 to - 0.6% Down Spread
1 1 1 1 1 133.30 68.60 33.30 0 to - 0.6% Down Spread
0 - Frequency is selected by hardware select, latched inputs and Bit2 setting.
1 - Frequency is selected by Bit 2,7:4
0 - Normal
1 - Spread spectrum enable
0 - Watch dog safe frequency will be selected by latch inputs
1 - Watch dog safe frequency will be programmed by Byte 10 bit (4:0)
PWD
1xxxx
0
1
0
Notes:
1. Default at power-up will be for latched logic inputs to define frequency, as displayed by Bit 3.
Third party brands and names are the property of their respective owners.
4

4페이지










ICS950905 전자부품, 판매, 대치품
Integrated
Circuit
Systems, Inc.
ICS950905
Advance Information
Byte 9: Watchdog Timer Count Register
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Name
WD7
WD6
WD5
WD4
WD3
WD2
WD1
WD0
PWD
0
0
0
0
1
0
0
0
Description
The decimal representation of these 8 bits correspond to X •
290ms the watchdog timer will wait before it goes to alarm mode
and reset the frequency to the safe setting. Default at power up is
16 • 290ms = 4.6 seconds.
Byte 10: Programming Enable bit 8 Watchdog Control Register
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Name
Program
Enable
WD Enable
WD Alarm
SF4
SF3
SF2
SF1
SF0
PWD
0
0
0
0
1
0
0
0
Description
Programming Enable bit
0 = no programming. Frequencies are selected by HW latches or Byte0 1
= enable all I2C programing.
Watchdog Enable bit.
This bit will over write WDEN latched value. 0 = disable, 1 = Enable.
Watchdog Alarm Status 0 = normal 1= alarm status
Watchdog safe frequency bits. Writing to these bits will configure the safe
frequency corrsponding to Byte 0 Bit 2, 7:4 table
Byte 11: VCO Frequency M Divider (Reference divider) Control Register
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Name
Ndiv 8
Mdiv 6
Mdiv 5
Mdiv 4
Mdiv 3
Mdiv 2
Mdiv 1
Mdiv 0
PWD
Description
X N divider bit 8
X
X
X The decimal respresentation of Mdiv (6:0) corresposd to the
X reference divider value. Default at power up is equal to the
X latched inputs selection.
X
X
Byte 12: VCO Frequency N Divider (VCO divider) Control Register
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Name
Ndiv 7
Ndiv 6
Ndiv 5
Ndiv 4
Ndiv 3
Ndiv 2
Ndiv 1
Ndiv 0
PWD
Description
X
X
X The decimal representation of Ndiv (8:0) correspond to the
X VCO divider value. Default at power up is equal to the
X latched inputs selecton. Notice Ndiv 8 is located in Byte 11.
X
X
X
Third party brands and names are the property of their respective owners.
7

7페이지


구       성 총 18 페이지수
다운로드[ ICS950905.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한
광범위한 전력 반도체를 판매합니다.

전력 반도체 전문업체

상호 : 아이지 인터내셔날

사이트 방문 :     [ 홈페이지 ]     [ 블로그 1 ]     [ 블로그 2 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
ICS950901

Programmable Timing Control Hub

Integrated Circuit Systems
Integrated Circuit Systems
ICS950902

Programmable Timing Control Hub

Integrated Circuit Systems
Integrated Circuit Systems

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵