Sysclk and SYSCLK# DC Characteristics | AMD 10 specs

31994A —1August 2004

AMD Sempron™ Processor Model 10 with 256K L2 Cache Data Sheet

7.9SYSCLK and SYSCLK# DC Characteristics

Table 11 shows the DC characteristics of the SYSCLK and SYSCLK# differential clocks. The SYSCLK signal represents CLKIN and RSTCLK tied together while the SYSCLK# signal represents CLKIN# and RSTCLK# tied together. For more information about SYSCLK and SYSCLK#, see “SYSCLK and SYSCLK#” on page 73 and Table 19, “Pin Name Abbreviations,” on page 52.

Table 11. SYSCLK and SYSCLK# DC Characteristics

Symbol	Description	Min	Max		Units

VThreshold-DC	Crossing before transition is detected (DC)	400			mV
VThreshold-AC	Crossing before transition is detected (AC)	450			mV
ILEAK_P	Leakage current through P-channel pullup to VCC_CORE	–1			mA
ILEAK_N	Leakage current through N-channel pulldown to VSS (Ground)		1		mA
VCROSS	Differential signal crossover		VCC_CORE	± 100	mV
VCROSS	Differential signal crossover		-----------------------	± 100	mV
			2

CPIN	Capacitance *	4	25 *		pF

Note:

* The following processor inputs have twice the listed capacitance because they connect to two input pads—SYSCLK and SYSCLK#. SYSCLK connects to CLKIN/RSTCLK. SYSCLK# connects to CLKIN#/RSTCLK#.

Figure 10 shows the DC characteristics of the SYSCLK and

SYSCLK# signals.

VCROSS

VThreshold-DC = 400 mV

VThreshold-AC = 450mV

Figure 10. SYSCLK and SYSCLK# Differential Clock Signals

Chapter 7

Electrical Data

31

Image 43

AMD 10 manual Sysclk and SYSCLK# DC Characteristics

Contents

Data Sheet Advanced Micro Devices, Inc. All rights reserved Table of Contents Mechanical Data Ordering Information AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet List of Figures Typical AMD Sempron Processor Model 10 System Block Diagram Viii List of Tables List of Tables Date Rev Description Revision History Xii Overview Chapter QuantiSpeed Architecture Summary Typical AMD Sempron Processor Model 10 System Block Diagram Signaling Technology Interface SignalsOverview Push-Pull PP Drivers AMD Athlon System Bus Signals Diode Logic Symbol DiagramProcessor Model Frequency Control Front-Side Bus Autodetect Legacy AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet Power Management States Power Management Halt State Working State Chapter Power Management Connect Protocol Probe State AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet Procrdy Exiting the Stop Grant State and Bus Connect Sequence Connect State Diagram Northbridge Connect Pending Disconnect Disconnect4/CDisconnect request Return internal clocks to full speed and assert Clock Control Cpuid Support AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet 256K L2 Cache Specifications Clock Frequency Parameter Description Minimum MaximumDuty Cycle 333 FSB AMD Athlon System Bus AC Characteristics FSB AMD Athlon System Bus DC Characteristics 333 FSB AMD Athlon System Bus DC Characteristics Conventions Interface Signal GroupingsInterface Signal Groupings Electrical Data Voltage Identification VID40 VID40 DC Characteristics Decoupling Vcca AC and DC CharacteristicsFID30 DC Characteristics Frequency Identification FID30 Vcccore AC and DC Characteristics Vcccore Characteristics Vcccore Voltage Waveform Absolute Ratings Absolute Ratings Sysclk and SYSCLK# DC Characteristics Sysclk and SYSCLK# DC Characteristics General AC and DC Characteristics General AC and DC Characteristics Sync Input Hold Time Sync Input Setup TimeSignal Rise Time Signal Fall Time 50 Ω ±3% Open-Drain Pin IOL = Output Current2 Open Drain Test Circuit Thermal Diode Thermal Diode CharacteristicsCharacteristics Thermal Diode Electrical Characteristics AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet Apic Pin AC and DC Characteristics Apic Pins AC and DC CharacteristicsGuidelines for Platform Thermal Protection of the Processor Hold Time Setup Time Power-Up Requirements Signal and Power-Up Requirements Pwrok AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet Clock Multiplier Processor Warm Reset RequirementsSelection FID30 Location Dynamic MAX Static MAX Units Die Surface 100 Mechanical DataDie Loading Mechanical Loading 453 Letter or Minimum Maximum Chapter Mechanical Data Dimension 49.27 49.78 D1/E1 45.72 BSC 917 REF 42 REF 977 Chapter Mechanical Data AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet Pin Descriptions Pin Diagram and Pin Name Abbreviations Model AMD Sempron Processor AMD Sempron Processor Model 10 Pin Diagram-Bottomside View Pin Name Abbreviations AD30 Abbreviation Full Name Pin Q31 S31 U31 U37 W31 Y31 Y33AA31 AC31 AL33 AE33AJ35 AG37 E15 W33J35 E27 F34 F24F28 F32 AM14 AK34AK36 AM10 V36 V30V32 V34 Pin List A35 SDATA40# A37 SDATA30# Cross-Reference by Pin LocationPin Name No Pin NC Pin F10 SDATA52# E11 SDATA50# E13 SDATA49# E15E29 SDATA33# E31 SDATA32# Pin Name E33 NC Pin E35 SDATA31# E37 SDATA22# J37 SDATA29# NC Pin H10 H12H28 NC Pin H30 H32 H34 NC Pin VID4 J31 J33 SDATA19# J35 U31 NC Pin U33 Key Pin Q31 NC Pin Q33 SDATA24# Q35 SDATA17# Q37 SDATA16#S31 NC Pin S33 S35 SDATA15# S37 Y37 SDATA12# FID0 FID1NC Pin W31 W33 FID2 FID3 NC Pin Key Pin Y31 Y33 Y35 AF20 NC Pin AD30 AD32AE31 NC Pin AE33 NC Pin AF10 AF12 NC Pin AK10 AH30 FSBSense1 AH32NC Pin AJ11 AJ13 Analog AJ15 AJ17 AJ19 AJ21 AJ27 NC Pin AJ29 AN25 NC Pin AN27 AN29 AL25 NC Pin AL27 AL29NC Pin AM10 NC Pin AN11 AN13 Detailed Pin Descriptions Connect Pin Sysclk PinsCOREFB# Pins Pins FID30 Clock Multiplier Encodings FID30 Pins INIT# Pin Front-Side Bus Sense Truth TableFLUSH# Pin IGNNE# Pin NC Pins Jtag PinsK7CLKOUT# Pins Key Pins Pwrok Pin SADDOUT10# PinsScan Pins Thermdc Pins Vrefsys Pin VID40 PinsVID40 Code to Voltage Definition ZN and ZP Pins AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet Standard AMD Sempron Processor Model 10 Products Ordering Information AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet Constants and Variables for the Ideal Diode Equation Ideal Diode Equation Temperature Offset Correction ⎛--- I-- high------ ⎞ AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet Appendix B Signals and Bits Data Terminology Abbreviations Abbreviations and AcronymsAbbreviation Meaning API Acronyms NMI VGA Related Publications AMD Sempron Processor Model 10 with 256K L2 Cache Data Sheet