ICS952703BFT IDT, Integrated Device Technology Inc, ICS952703BFT Datasheet

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ICS952703BFT

Manufacturer Part Number
ICS952703BFT
Description
IC TIMING CTRL HUB K7 48-SSOP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Timing Control Hubr
Datasheet

Specifications of ICS952703BFT

Input
Crystal
Output
Clock
Frequency - Max
217.9MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
48-SSOP
Frequency-max
217.9MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
952703BFT

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS952703BFT
Manufacturer:
IDT
Quantity:
2 000
Recommended Application:
SiS741 style chipset with 964 South Bridge.
Output Features:
Key Specifications:
Functionality
0813B—05/17/05
Bit4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1 - Pair of differential open drain CPU outputs
1 - Single-ended open drain CPU output
1 - Pair of current mode differential serial reference clock
8 - PCICLK @ 3.3V including 2 PCI clock free running
2 - AGPCLK @ 3.3V
3 - REF @ 3.3V
2 - ZCLK @ 3.3V
2 - IOAPIC @ 2.5V
1 - 12_48MHz @ 3.3V
1 - 24_48MHz @ 3.3V
CPU Output Jitter <250ps
AGP Output Jitter <250ps
ZCLK Output Jitter <250ps
PCI Output Jitter <500ps
CPU-AGP/PCI/ZCLK skew: 2.5ns~3.5ns
Bit3
FS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Integrated
Circuit
Systems, Inc.
Bit2
FS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Programmable Timing Control Hub for K7
Bit1
FS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Bit0
FS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
200.00
200.01
200.97
190.11
100.00
100.00
100.99
166.66
166.65
161.59
151.97
133.33
133.34
133.98
126.66
206.02
210.00
214.06
217.90
103.01
105.00
106.99
109.01
164.66
167.91
171.22
174.38
137.32
140.00
142.67
145.33
95.00
CPU
MHz
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
100.00
SRC
MHz
133.33
133.34
133.98
126.74
133.33
133.34
134.66
126.66
133.33
133.32
129.27
121.57
133.33
133.34
133.98
126.66
137.35
140.00
142.70
145.27
137.35
140.00
142.65
145.35
131.73
134.33
136.98
139.50
137.32
140.00
142.67
145.33
ZCLK
MHz
66.66
66.67
66.99
63.37
66.66
66.67
67.33
63.33
66.66
66.66
64.64
60.79
66.66
66.67
66.99
63.33
68.67
70.00
71.35
72.63
68.67
70.00
71.33
72.68
65.86
67.17
68.49
69.75
68.66
70.00
71.34
72.66
AGP
MHz
33.33
33.33
33.49
31.69
33.33
33.33
33.66
31.67
33.33
33.33
32.32
30.39
33.33
33.33
33.49
31.67
34.34
35.00
35.68
36.32
34.34
35.00
35.66
36.34
32.93
33.58
34.24
34.88
34.33
35.00
35.67
36.33
MHz
PCI
Features/Benefits:
Pin Configuration
*(CPU_STOP#)PCICLK4 22
*(PCI_STOP#)PCICLK3 21
Selectable synchronous/asynchronous AGP/PCI
frequency
Programmable output frequency.
Programmable output divider ratios.
Programmable output rise/fall time.
Programmable output skew.
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.
Uses external 14.318MHz reference input.
*FS2/PCICLK_F0 14
*FS3/PCICLK_F1 15
*(PD#)PCICLK5 23
**Mode/REF2 4
**FS0/REF0 2
**FS1/REF1 3
GNDREF 5
Preliminary Product Preview
VDDREF 1
PCICLK0 16
PCICLK1 17
PCICLK2 20
GNDPCI 18
GNDPCI 24
VDDPCI 13
VDDPCI 19
ZCLK0 9
ZCLK1 10
GNDZ 8
VDDZ 11
SCLK 12
~ This output have 1.5X Drive Strength
X1 6
X2 7
** Internal Pull-Down Resistor
* Internal Pull-Up Resistor
48-SSOP
TM
System
48 VDDLAPIC
47 IOAPIC1
46 IOAPIC0
45 GNDAPIC
44 VDDSRC
43 SRCCLKT
42 SRCCLKC
41 GND
40 CPUCLKODT1
39 GNDCPU
38 CPUCLKODT0
37 CPUCLKODC0
36 AVDD
35 AGND
34 IREF
33 SDATA
32 GNDAGP
31 AGPCLK0
30 AGPCLK1
29 VDDAGP
28 AVDD48
27 12_48MHz/SEL12_48#MHz*
26 24_48MHz/SEL24_48#MHz**~
25 GND48
ICS952703

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ICS952703BFT Summary of contents

Page 1

Integrated Circuit Systems, Inc. Programmable Timing Control Hub for K7 Recommended Application: SiS741 style chipset with 964 South Bridge. Output Features: • Pair of differential open drain CPU outputs • Single-ended open drain CPU output • ...

Page 2

Integrated Circuit Systems, Inc. General Description The ICS952703 is a two chip clock solution for desktop designs using SiS741 style chipsets. When used with a zero delay buffer such as the ICS9179-16 for PC133 or the ICS93735 for DDR applications ...

Page 3

Integrated Circuit Systems, Inc. Pin Description PIN # PIN NAME TYPE 1 PWR VDDREF 2 **FS0/REF0 3 **FS1/REF1 4 **Mode/REF2 5 GNDREF PWR OUT 8 GNDZ PWR 9 ZCLK0 OUT 10 ZCLK1 OUT 11 VDDZ PWR ...

Page 4

Integrated Circuit Systems, Inc. General SMBus serial interface information for the ICS952703 How to Write: • Controller (host) sends a start bit. • Controller (host) sends the write address D2 • ICS clock will acknowledge • Controller (host) sends the ...

Page 5

Integrated Circuit Systems, Inc. Table1: Frequency Selection Table Bit3 Bit2 Bit1 Bit0 Bit4 FS3 FS2 FS1 FS0 200. 200. 200. ...

Page 6

Integrated Circuit Systems, Inc Table: Frequency Select Register Byte 0 Pin # Name - SS_EN Bit 7 - SEL12_48MHz Bit 6 - SEL24_48MHz Bit 5 - Bit 4 - Bit 3 - Bit 2 - Bit 1 ...

Page 7

Integrated Circuit Systems, Inc Table: Output Skew Control Register Byte 4 Pin # - PCISkw3 Bit 7 - PCISkw2 Bit 6 - PCISkw1 Bit 5 - PCISkw0 Bit 4 - AGPSkw3 Bit 3 - AGPSkw2 Bit 2 ...

Page 8

Integrated Circuit Systems, Inc Table: Byte Count Register Byte 8 Pin # Name - Bit 7 - Bit 6 - Bit 5 - Bit 4 - Bit 3 - Bit 2 - Bit 1 - Bit 0 ...

Page 9

Integrated Circuit Systems, Inc Table: VCO Frequency Control Register Byte 11 Pin # Name - N Div8 Bit Div9 Bit Div5 Bit Div4 Bit Div3 ...

Page 10

Integrated Circuit Systems, Inc. Absolute Maximum Ratings Core Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . 4.6 V I/O Supply Voltage . . ...

Page 11

Integrated Circuit Systems, Inc. Electrical Characteristics - CPUCLKT 70°C; VDD=3.3V +/-5 PARAMETER SYMBOL Current Source 1 Zo Output Impedance Output High Voltage V OH3 Output Low Voltage V OL3 Rise Time t r3 Fall ...

Page 12

Integrated Circuit Systems, Inc. Electrical Characteristics - AGPCLK 70°C; VDD=3.3V +/-5 PARAMETER SYMBOL Output Frequency Output Impedance R DSP1 1 Output High Voltage Output Low Voltage V OL ...

Page 13

Integrated Circuit Systems, Inc. Electrical Characteristics - ZCLK 70°C; VDD=3.3V +/-5 PARAMETER SYMBOL Output Frequency Output Impedance R DSP1 1 Output High Voltage Output Low Voltage V OL ...

Page 14

Integrated Circuit Systems, Inc. Shared Pin Operation - Input/Output Pins The I/O pins designated by (input/output) serve as dual signal functions to the device. During initial power-up, they act as input pins. The logic level (voltage) that is present on ...

Page 15

Integrated Circuit Systems, Inc. PCI_STOP# - Assertion (transition from logic "1" to logic "0") The impact of asserting the PCI_STOP# signal will be the following. All PCI and stoppable PCI_F clocks will latch low in their next high to low ...

Page 16

Integrated Circuit Systems, Inc INDEX INDEX AREA AREA 45° SEATING SEATING b PLANE PLANE .10 (.004) C .10 (.004) C Ordering Information ICS952703yFLFT Example: ICS 95XXXX ...

Page 17

Integrated Circuit Systems, Inc. Revision History Rev. Issue Date Description B 5/17/2005 Added LF Ordering Information 0813B—05/17/05 Preliminary Product Preview Page # 16 17 ICS952703 ...

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