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參數資料
| 型號： | ICS94201yFT |
| 英文描述： | Programmable System Frequency Generator for PII/III⑩ |
| 中文描述： | 可編程系統頻率發生器有價證券/三⑩ |
| 文件頁數： | 1/18頁 |
| 文件大小： | 357K |
| 代理商： | ICS94201YFT |
Integrated
Circuit
Systems, Inc.
ICS94201
94201 Rev A - 05/24/01
Pin Configuration
Recommended Application:
810/810E and Solano (815) type chipset
Output Features:
2 - CPUs @ 2.5V
13 - SDRAM @ 3.3V
3 - 3V66 @ 3.3V
8 - PCI @3.3V
1 - 24/48MHz@ 3.3V
1 - 48MHz @ 3.3V fixed
1 - REF @3.3V, 14.318MHz
Features:
Programmable ouput frequency.
Programmable ouput rise/fall time for PCI
and SDRAM clocks.
Programmable 3V66 to PCI skew.
Spread spectrum for EMI control
with programmable spread percentage.
Watchdog timer technology to reset system
if over-clocking causes malfunction.
Support power management through PD#.
Uses external 14.318MHz crystal.
FS pins for frequency select
Key Specifications:
CPU Output Jitter: <250ps
IOAPIC Output Jitter: <500ps
48MHz, 3V66, PCI Output Jitter: <500ps
CPU Output Skew: <175ps
PCI Output Skew: <500ps
3V66 Output Skew <175ps
For group skew timing, please refer to the
Group Timing Relationship Table.
Programmable System Frequency Generator for P
II
/
III
56-Pin 300 mil SSOP
1. These pins will have 1.5 to 2X drive strength.
* 120K ohm pull-up to VDD on indicated inputs.
PLL2
PLL1
Spread
Spectrum
48MHz
24_48MHz
CPUCLK [1:0]
2
12
8
3
SDRAM [11:0]
IOAPIC
PCICLK [7:0]
SDRAM_F
3V66 [2:0]
X1
X2
XTAL
OSC
CPU
DIVDER
SDRAM
DIVDER
IOAPIC
DIVDER
PCI
DIVDER
3V66
DIVDER
FS[4:0]
PD#
SEL24_48#
SDATA
SCLK
Control
Logic
Config.
Reg.
/ 2
REF0
Block Diagram
VDDREF
X1
X2
GNDREF
GND3V66
3V66-0
3V66-1
3V66-2
VDD3V66
VDDPCI
*(FS0)PCICLK0
*(FS1)PCICLK1
*(SEL24_48#)PCICLK2
GNDPCI
PCICLK3
PCICLK4
PCICLK5
VDDPCI
PCICLK6
PCICLK7
GNDPCI
PD#
SCLK
SDATA
VDDSDR
SDRAM11
SDRAM10
GNDSDR
1
1
1
REF0(FS4)*
VDDLAPIC
IOAPIC
VDDLCPU
CPUCLK0
CPUCLK1
GNDLCPU
GNDSDR
SDRAM0
SDRAM1
SDRAM2
VDDSDR
SDRAM3
SDRAM4
SDRAM5
GNDSDR
SDRAM6
SDRAM7
SDRAM_F
VDDSDR
GND48
24_48MHz(FS2)*
48MHz(FS3)*
VDD48
VDDSDR
SDRAM8
SDRAM9
GNDSDR
1
I
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
ICS reserves the right to make changes in the device data identified in
this publication without further notice. ICS advises its customers to
obtain the latest version of all device data to verify that any
information being relied upon by the customer is current and accurate.
相關PDF資料 |
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| ICS94201 | Programmable System Frequency Generator for PII/III⑩ |
| ICS94203 | 18-Bit Universal Bus Transceivers With 3-State Outputs 56-SSOP -40 to 85 |
| ICS94203F-T | Peripheral IC |
| ICS94203yF-T | Programmable System Frequency Generator for PII/III⑩ |
| ICS94206 | Programmable System Frequency Generator for PII/III⑩ |
相關代理商/技術參數 |
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|---|---|
| ICS94203 | 制造商:ICS 制造商全稱:ICS 功能描述:Programmable System Frequency Generator for PII/III⑩ |
| ICS94203F-T | 制造商:ICS 制造商全稱:ICS 功能描述:Peripheral IC |
| ICS94203YF-T | 制造商:ICS 制造商全稱:ICS 功能描述:Programmable System Frequency Generator for PII/III⑩ |
| ICS94206 | 制造商:ICS 制造商全稱:ICS 功能描述:Programmable System Frequency Generator for PII/III⑩ |
| ICS94206YF-T | 制造商:ICS 制造商全稱:ICS 功能描述:Programmable System Frequency Generator for PII/III⑩ |
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