9EPRS475BGLF

9EPRS475BGLF Datasheet

ICS9EPRS475 Datasheet

Part	Datasheet
9EPRS475BGLF	9EPRS475BGLF (pdf)

Related Parts	Information
9EPRS475BGLFT	9EPRS475BGLFT

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Integrated Circuit Systems, Inc. ICS9EPRS475 Datasheet System Clock for Embedded AMDTM based Systems Recommended Application AMD M690T/780E systems Output Features • 2 - Greyhound compatible K8 CPU pair • 4 - low-power differential SRC pairs • 2 - low-power differential SouthBridge SRC pairs • 3 - low-power differential ATIG pairs • 1 - Selectable 100MHz low-power differential/ 66 MHz single-ended HTT clock • 2 - 48MHz USB clock • 3 - 14.318MHz Reference clock Key Specifications • CPU outputs cycle-to-cycle jitter < 150ps • SRC outputs cycle-to-cycle jitter < 125ps • ATIG outputs cycle-to-cycle jitter < 125ps • +/- 300ppm frequency accuracy on CPU, SRC & ATIG clocks Features/Benefits • Spread Spectrum for EMI reduction • Outputs may be disabled via SMBus • External crystal load capacitors for maximum frequency accuracy • PCI Express Generation compliant Pin Configuration 48MHz_1 1 48MHz_0 2 GND48 3 SMBCLK 4 SMBDAT 5 SRC3C_LPRS 6 SRC3T_LPRS 7 SRC2C_LPRS 8 SRC2T_LPRS 9 GNDSRC 10 VDDSRC 11 SRC1C_LPRS 12 SRC1T_LPRS 13 VDDSRC 14 GNDSRC 15 SRC0C_LPRS 16 SRC0T_LPRS 17 SB_SRC1C_LPRS 18 SB_SRC1T_LPRS 19 GNDSB_SRC 20 VDDSB_SRC 21 SB_SRC0C_LPRS 22 SB_SRC0T_LPRS 23 GNDATIG 24 ATIG2C_LPRS 25 ATIG2T_LPRS 26 GNDATIG 27 VDDATIG 28 ICS9EPRS475 56 VDD48 55 X2 54 X1 53 GNDREF 52 VDDREF 51 REF0/SEL_HTT66 50 REF1 49 REF2 48 VDDHTT 47 HTT0T_LPRS/66M 46 HTT0C_LPRS/66M 45 GNDHTT 44 RESTORE# 43 PD# 42 CPUKG0T_LPRS 41 CPUKG0C_LPRS 40 VDDCPU 39 GNDCPU 38 CPUKG1T_LPRS 37 CPUKG1C_LPRS 36 VDDA 35 GNDA 34 GND 33 VDD 32 ATIG0T_LPRS 31 ATIG0C_LPRS 30 ATIG1T_LPRS 29 ATIG1C_LPRS 56-Pin TSSOP *Other names and brands may be claimed as the property of others. Document contains information on products in the formative or design phase development. Characteristic data and other specifications are design goals. IDTreserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners. Integrated Circuit Systems, Inc. ICS9EPRS475 Datasheet Pin Description PIN # PIN NAME 1 48MHz_1 2 48MHz_0 3 GND48 4 SMBCLK 5 SMBDAT 6 SRC3C_LPRS 7 SRC3T_LPRS 8 SRC2C_LPRS 9 SRC2T_LPRS 10 GNDSRC 11 VDDSRC 12 SRC1C_LPRS 13 SRC1T_LPRS 14 VDDSRC 15 GNDSRC 16 SRC0C_LPRS 17 SRC0T_LPRS 18 SB_SRC1C_LPRS 19 SB_SRC1T_LPRS 20 GNDSB_SRC 21 VDDSB_SRC 22 SB_SRC0C_LPRS 23 SB_SRC0T_LPRS 24 GNDATIG 25 ATIG2C_LPRS 26 ATIG2T_LPRS Ordering Information Part/Order Number 9EPRS475BGLF 9EPRS475BGLFT Shipping Packaging Tubes Tape and Reel Package 56-pin TSSOP 56-pin TSSOP Temperature 0 to 70° C 0 to 70° C Parts that are ordered w ith a “LF” suffix to the part num ber are the Pb-Free configuration and are RoHS com pliant. Due to package size constraints, actual top-side m arking m ay differ from the full orderable part num ber. Integrated Circuit Systems, Inc. ICS9EPRS475 Datasheet Page # - This product is protected by United States Patent NO. 7,342,420 and other patents.

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Integrated Circuit Systems, Inc.

ICS9EPRS475 Datasheet

System Clock for Embedded AMDTM based Systems

Recommended Application AMD M690T/780E systems

Output Features
• 2 - Greyhound compatible K8 CPU pair
• 4 - low-power differential SRC pairs
• 2 - low-power differential SouthBridge SRC pairs
• 3 - low-power differential ATIG pairs
• 1 - Selectable 100MHz low-power differential/ 66 MHz
single-ended HTT clock
• 2 - 48MHz USB clock
• 3 - 14.318MHz Reference clock

Key Specifications
• CPU outputs cycle-to-cycle jitter < 150ps
• SRC outputs cycle-to-cycle jitter < 125ps
• ATIG outputs cycle-to-cycle jitter < 125ps
• +/- 300ppm frequency accuracy on CPU, SRC & ATIG
clocks

Features/Benefits
• Spread Spectrum for EMI reduction
• Outputs may be disabled via SMBus
• External crystal load capacitors for maximum
frequency accuracy
• PCI Express Generation compliant

Pin Configuration
48MHz_1 1 48MHz_0 2

GND48 3 SMBCLK 4 SMBDAT 5 SRC3C_LPRS 6 SRC3T_LPRS 7 SRC2C_LPRS 8 SRC2T_LPRS 9 GNDSRC 10 VDDSRC 11 SRC1C_LPRS 12 SRC1T_LPRS 13 VDDSRC 14 GNDSRC 15 SRC0C_LPRS 16 SRC0T_LPRS 17 SB_SRC1C_LPRS 18 SB_SRC1T_LPRS 19 GNDSB_SRC 20 VDDSB_SRC 21 SB_SRC0C_LPRS 22 SB_SRC0T_LPRS 23 GNDATIG 24 ATIG2C_LPRS 25 ATIG2T_LPRS 26 GNDATIG 27 VDDATIG 28

ICS9EPRS475
56 VDD48 55 X2 54 X1 53 GNDREF 52 VDDREF 51 REF0/SEL_HTT66 50 REF1 49 REF2 48 VDDHTT 47 HTT0T_LPRS/66M 46 HTT0C_LPRS/66M 45 GNDHTT 44 RESTORE# 43 PD# 42 CPUKG0T_LPRS 41 CPUKG0C_LPRS 40 VDDCPU 39 GNDCPU 38 CPUKG1T_LPRS 37 CPUKG1C_LPRS 36 VDDA 35 GNDA 34 GND 33 VDD 32 ATIG0T_LPRS 31 ATIG0C_LPRS 30 ATIG1T_LPRS 29 ATIG1C_LPRS
56-Pin TSSOP
*Other names and brands may be claimed as the property of others.

Document contains information on products in the formative or design phase development. Characteristic data and other specifications are design goals. IDTreserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.

Integrated Circuit Systems, Inc.

ICS9EPRS475 Datasheet

Pin Description

PIN #

PIN NAME
1 48MHz_1
2 48MHz_0
3 GND48
4 SMBCLK
5 SMBDAT
6 SRC3C_LPRS
7 SRC3T_LPRS
8 SRC2C_LPRS
9 SRC2T_LPRS
10 GNDSRC 11 VDDSRC 12 SRC1C_LPRS
13 SRC1T_LPRS
14 VDDSRC 15 GNDSRC 16 SRC0C_LPRS
17 SRC0T_LPRS
18 SB_SRC1C_LPRS
19 SB_SRC1T_LPRS
20 GNDSB_SRC 21 VDDSB_SRC 22 SB_SRC0C_LPRS
23 SB_SRC0T_LPRS 24 GNDATIG 25 ATIG2C_LPRS
26 ATIG2T_LPRS
Ordering Information

Part/Order Number 9EPRS475BGLF 9EPRS475BGLFT

Shipping Packaging Tubes

Tape and Reel

Package 56-pin TSSOP 56-pin TSSOP

Temperature 0 to 70° C 0 to 70° C

Parts that are ordered w ith a “LF” suffix to the part num ber are the Pb-Free configuration and are RoHS com pliant. Due to package size constraints, actual top-side m arking m ay differ from the full orderable part num ber.

Integrated Circuit Systems, Inc.

ICS9EPRS475 Datasheet

Page # -

This product is protected by United States Patent NO. 7,342,420 and other patents.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 9EPRS475BGLF Datasheet file may be downloaded here without warranties.

Datasheet ID: 9EPRS475BGLF 637223