IDTCV142PAG8

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR IDTCV142 FEATURES: DESCRIPTION: • Power management control suitable for notebook applications • One high precision PLL for CPU, SSC and N programming • One high precision PLL for SRC/PCI, supports 100MHz output frequency, SSC and N programming • One high precision PLL for 96MHz/48MHz • Band-gap circuit for differential outputs • Support spread spectrum modulation, –0.5 down spread and others • Support SMBus block read/write, index read/write • Selectable output strength for REF • Allows for CPU frequency to change to a slower frequency to conserve power when an application is less executionintensive • Smooth transition for N programming • Available in TSSOP package IDTCV142 is a 56 pin clock device, complying with Intel CK410M requirements for Intel advance P4 processors. The CPU output buffer is designed to support up to 400MHz processor. This chip has three PLLs inside for CPU, SRC/PCI, and 48MHz/DOT96 IO clocks. This device also implements Band-gap referenced IREF to reduce the impact of VDD variation on differential outputs, which can provide more robust system performance. Each CPU/SRC has its own Spread Spectrum selection. OUTPUTS: • • • • • • KEY SPECIFICATIONS: 2*0.7V current –mode differential CPU CLK pair 6*0.7V current –mode differential SRC CLK pair One CPU_ITP/SRC selectable CLK pair 6*PCI, 2 free running, 33.3MHz 1*96MHz, 1*48MHz 1*REF • CPU/SRC CLK cycle to cycle jitter < 85ps • SATA CLK cycle to cycle jitter < 85ps • PCI CLK cycle to cycle jitter < 250ps FUNCTIONAL BLOCK DIAGRAM PLL1 SSC N Programmable XTAL_IN CPU[1:0] CPU CLK Output Buffer Stop Logic CPU_ITP/SRC7 XTAL Osc Amp IREF REF XTAL_OUT ITP_EN SDATA SCLK SM Bus Controller SRC CLK Output Buffer Stop Logic PLL2 SSC N Programmable SRC[5:1] PCI[3:0], PCIF[1:0] VTT_PWRGD#/PD IREF SEL100/96# CLKREQA# SEL 100/96MHz 48MHz CLKREQB# FSA.B.C Control Logic PLL3 48MHz/96MHz Output BUffer DOT96 PCI_STOP# CPU_STOP# The IDT logo is a registered trademark of Integrated Device Technology, Inc. COMMERCIAL TEMPERATURE RANGE FEBRUARY 2005 1 © 2005 Integrated Device Technology, Inc. DSC 6584/18 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol VDD_PCI 1 56 PCI0 VSS_PCI 2 55 PCI_STOP# PCI1 3 54 CPU_STOP# PCI2 4 53 FSC/TEST_SEL PCI3 5 52 REF VSS_PCI 6 51 VSS_REF VDD_PCI 7 50 XTAL_IN PCIF0/ITP_EN 8 49 XTAL_OUT PCIF1 9 48 VDD_REF VTT_PWRGD#/PD 10 47 SDA VDD48 11 46 SCL USB48/FSA 12 45 VSS_CPU VSS48 13 44 CPU0 DOT96 14 43 CPU0# 15 42 VDD_CPU FSB/TEST_MODE 16 41 CPU1 SRC0 17 40 CPU1# SRC0# 18 39 IREF SRC1 19 38 VSSA SRC1# 20 37 VDDA VDD_SRC 21 36 CPU2_ITP/SRC7 SRC2 22 35 CPU2_ITP#/SRC7# SRC2# 23 34 VDD_SRC SRC3 24 33 CLKREQA# (1) SRC3# 25 32 CLKREQB# (1) SRC4 26 31 SRC5 27 30 SRC5# VDD_SRC 28 29 VSS_SRC Min 3.3V Core Supply Voltage VDD 3.3V Logic Input Supply Voltage GND - 0.5 TSTG Storage Temperature TAMBIENT Ambient Operating Temperature TCASE Case Temperature ESD Prot Input ESD Protection –65 0 2000 Max Unit 4.6 V 4.6 V +150 °C +70 °C +115 °C V Human Body Model DOT96# SRC4# Description VDDA NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. NOTE: 1. 130K pull-up resistor. TSSOP TOP VIEW FREQUENCY SELECTION TABLE FSC, B, A CPU SRC[7:0] PCI USB DOT REF 101 100 100 33.3 48 96 14.318 001 133 100 33.3 48 96 14.318 011 166 100 33.3 48 96 14.318 010 200 100 33.3 48 96 14.318 000 266 100 33.3 48 96 14.318 100 333 100 33.3 48 96 14.318 110 400 100 33.3 48 96 14.318 111 Reserve 100 33.3 48 96 14.318 2 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE PIN DESCRIPTION Pin Number Name Type Description 1 VDD_PCI PWR 3.3V 2 VSS_PCI GND GND 3 PCI1 OUT PCI clock 4 PCI2 OUT PCI clock 5 PCI3 OUT PCI clock 6 VSS_PCI GND GND 7 VDD_PCI PWR 3.3V 8 PCIF0/ITP_EN I/O PCI clock, free running. CPU2 select (sampled on VTT_PWRGD# assertion) HIGH = CPU2. 9 PCIF1 I/O PCI clock, free running. 10 VTT_PWRGD#/PD IN Level-sensitive strobe used to latch the FSA, FSB, FSC/TEST_SEL, and PCIF0/ITP_EN inputs. After VTT_PWRGD# assertion, becomes a real-time input for asserting power down. (Active HIGH) 11 VDD48 PWR 12 USB48/FSA OUT 48MHz clock for CPU frequency selection 13 VSS48 GND GND 14 DOT96 OUT 96MHz 0.7 current mode differential clock output 15 DOT96# OUT 16 FSB/TEST_MODE IN 17 SRC0 OUT Differential serial reference clock 18 SRC0# OUT Differential serial reference clock 19 SRC1 OUT Differential serial reference clock 3.3V 96MHz 0.7 current mode differential clock output CPU frequency selection. Selects REF/N or Hi-Z when in test mode, Hi-Z = 1, REF/N = 0. 20 SRC1# OUT Differential serial reference clock 21 VDD_SRC PWR 3.3V 22 SRC2 OUT Differential serial reference clock 23 SRC2# OUT Differential serial reference clock 24 SRC3 OUT Differential serial reference clock 25 SRC3# OUT Differential serial reference clock 26 SRC4 OUT Differential serial reference clock 27 SRC4# OUT Differential serial reference clock 28 VDD_SRC PWR 3.3V 29 VSS_SRC GND GND 30 SRC5# OUT Differential serial reference clock 31 SRC5 OUT Differential serial reference clock 32 CLKREQB# IN SRC clock enable (Active LOW, see Byte 8) 33 CLKREQA# IN SRC clock enable (Active LOW, see Byte 8) 34 VDD_SRC PWR 3.3V 35 CPU2_ITP#/SRC7# OUT Selectable CPU or SRC differential clock output. ITP_EN = 0 at VTT_PWRGD# assertion = SRC7#. 36 CPU2_ITP/SRC7 OUT Selectable CPU or SRC differential clock output. ITP_EN = 0 at VTT_PWRGD# assertion = SRC7. 37 VDDA PWR 3.3V 38 VSSA GND GND 39 IREF OUT Reference current for differential output buffer 40 CPU1# OUT Host 0.7 current mode differential clock output 41 CPU1 OUT Host 0.7 current mode differential clock output 42 VDD_CPU PWR 3.3V 3 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE PIN DESCRIPTION (CONT.) Pin Number Name Type 43 CPU0# OUT Host 0.7 current mode differential clock output Description 44 CPU0 OUT Host 0.7 current mode differential clock output 45 VSS_CPU GND GND 46 SCL IN SM bus clock SM bus data 47 SDA I/O 48 VDD_REF PWR 3.3V 49 XTAL_OUT OUT XTAL output 50 XTAL_IN IN 51 VSS_REF GND XTAL input 52 REF OUT 53 FSC/TEST_SEL IN CPU frequency selection. Selects test mode if pulled above 2V when VTT_PWRGD# is asserted LOW. 54 CPU_STOP# IN Stop all stoppable CPU CLK 55 PCI_STOP# IN Stop all stoppable PCI, SRC CLK 56 PCI0 OUT GND 14.318 MHz reference clock output PCI clock INDEX BLOCK WRITE PROTOCOL Bit 1 2-9 10 11-18 19 20-27 28 29-36 37 38-45 46 # of bits 1 8 1 8 1 8 1 8 1 8 1 From Master Master Slave Master Slave Master Slave Master Slave Master Slave Master Slave Master INDEX BLOCK READ PROTOCOL Master can stop reading any time by issuing the stop bit without waiting until Nth byte (byte count bit30-37). Description Start D2h Ack (Acknowledge) Register offset byte (starting byte) Ack (Acknowledge) Byte count, N (0 is not valid) Ack (Acknowledge) first data byte (Offset data byte) Ack (Acknowledge) 2nd data byte Ack (Acknowledge) : Nth data byte Acknowledge Stop Bit 1 2-9 10 11-18 19 20 21-28 29 30-37 # of bits 1 8 1 8 1 1 8 1 8 From Master Master Slave Master Slave Master Master Slave Slave 38 39-46 47 48-55 1 8 1 8 Master Slave Master Slave Master Slave Master Description Start D2h Ack (Acknowledge) Register offset byte (starting byte) Ack (Acknowledge) Repeated Start D3h Ack (Acknowledge) Byte count, N (block read back of N bytes), power on is 8 Ack (Acknowledge) first data byte (Offset data byte) Ack (Acknowledge) 2nd data byte Ack (Acknowledge) : Ack (Acknowledge) Nth data byte Not acknowledge Stop INDEX BYTE WRITE INDEX BYTE READ Setting bit[11:18] = starting address, bit[20:27] = 01h. Setting bit[11:18] = starting address. After reading back the first data byte, master issues Stop bit. 4 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE SSC MAGNITUDE CONTROL FOR CPU, SRC, AND SMC SMC[2:0] 000 001 010 011 100 101 110 111 RESOLUTION CPU (MHz) 100 133 166 200 266 333 400 -0.25 -0.5 -0.75 -1 ±0.125 ±0.25 ±0.375 ±0.5 Resolution 0.666667 0.666667 1.333333 1.333333 1.333333 2.666667 2.666667 N= 150 200 125 150 200 125 150 S.E. CLOCK STRENGTH SELECTION (PCI, REF, USB48) Str[1:0] Level 00 1 01 0.8 10 0.6 11 1.2 CONTROL REGISTERS N PROGRAMMING PROCEDURE Use Index byte write. For N programming, the user only needs to access Byte 12, Byte 13, and Byte 10. • • 1. 2. 3. Write Byte 12 for CPU PLL N, CPU f = N* Resolution (see resolution table). Write Byte 13 for SRC PLL N, SRC f = N*0.666667, PCI = SRC f /3. Enable N Programming bit, Byte 10 bit 1. Once this bit is enabled, any N value will be changed on the fly. BYTE 0 Bit Output(s) Affected Description/Function 0 1 Type Power On 0 1 SRC0, SRC0# SRC1, SRC1# Output Enable Output Enable Tristate Tristate Enable Enable RW RW 1 1 2 SRC2, SRC2# Output Enable Tristate Enable RW 1 3 SRC3, SRC3# Output Enable Tristate Enable RW 1 4 SRC4, SRC4# Output Enable Tristate Enable RW 1 5 SRC5, SRC5# Output Enable Tristate Enable RW 1 RW 1 Output Enable Tristate Enable RW 1 6 Reserved 7 CPU2, CPU2#/ SRC7, SRC7# 5 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE BYTE 1 Bit Output(s) Affected Description/Function 0 1 Type Power On 0 CPU[2:0], SRC[7:0], PCI[5:0], PCIF[1:0] CPU0, CPU0# CPU1, CPU1# Reserved REF USB48 DOT96 PCIF0 Spread Spectrum mode enable Spread off Spread on RW 0 Output Enable Output Enable Tristate Tristate Enable Enable Output Enable Output Enable Output Enable Output Enable Tristate Tristate Tristate Tristate Enable Enable Enable Enable RW RW RW RW RW RW RW 1 1 1 1 1 1 1 Bit Output(s) Affected Description/Function 0 1 Type Power On 0 1 2 3 4 5 6 7 PCIF1 Reserved Reserved Reserved PCI0 PCI1 PCI2 PCI3 Output Enable Tristate Enable Output Enable Output Enable Output Enable Output Enable Tristate Tristate Tristate Tristate Enable Enable Enable Enable RW RW RW RW RW RW RW RW 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 BYTE 2 BYTE 3 Bit Output(s) Affected 0 1 2 3 4 5 6 7 SRC0 SRC1 SRC2 SRC3 SRC4 SRC5 Reserved SRC7 Description / Function 0 1 Allow controlled by PCI_STOP# assertion Free running, not affected by PCI_STOP# Stopped with PCI_STOP# Allow controlled by PCI_STOP# assertion Free running, not affected by PCI_STOP# Stopped with PCI_STOP# Type Power On RW RW RW RW RW RW RW RW 0 0 0 0 0 0 0 0 BYTE 4 Bit Output(s) Affected Description / Function 0 1 Type Power On 0 CPU0, CPU0# RW 1 2 CPU2, CPU2# RW 1 3 4 5 6 7 PCIF0 PCIF1 Reserved DOT96 Reserved Stopped with CPU_STOP# Stopped with CPU_STOP# Stopped with CPU_STOP# Stopped with PCI_STOP# 1 CPU1, CPU1# Not stopped by CPU_STOP# Not stopped by CPU_STOP# Not stopped by CPU_STOP# Not stopped by PCI_STOP# RW 1 Allow control of CPU0 with assertion of CPU_STOP# Allow control of CPU1 with assertion of CPU_STOP# Allow control of CPU2 with assertion of CPU_STOP# Allow controlled by PCI_STOP# assertion DOT96 power down drive mode Driven in power down Tristate RW RW RW RW RW 0 0 0 0 0 6 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE BYTE 5 Bit Output(s) Affected Description / Function 0 1 Type Power On 0 CPU0, CPU0# CPU0 PD drive mode Driven in power down Tristate in power down RW 0 1 CPU1, CPU1# CPU1 PD drive mode Driven in power down Tristate in power down RW 0 2 CPU2, CPU2# CPU2 PD drive mode Driven in power down Tristate in power down RW 0 3 SRCS SRC PD drive mode Driven in power down Tristate in power down RW 0 4 CPU0 CPU0 CPU_STOP drive mode Driven in CPU_STOP# Tristate when stopped RW 0 5 CPU1 CPU1 CPU_STOP drive mode Driven in CPU_STOP# Tristate when stopped RW 0 6 CPU2 CPU2 CPU_STOP drive mode Driven in CPU_STOP# Tristate when stopped RW 0 7 SRCS SRC PCI_STOP drive mode Driven in PCI_STOP Tristate when stopped RW 0 Bit Output(s) Affected Description / Function 0 0 CPU[2:0] 1 CPU[2:0] 2 3 BYTE 6 Type Power On FSA latched value on power up R FSA FSB latched value on power up R FSB CPU[2:0] FSC latched value on power up R FSC PCI, SRC Software PCI_STOP control for PCI and SRC CLK Stop all PCI, PCIF, and SRC which can be stopped by PCI_STOP# Software STOP Disabled RW 1 4 REF REF drive strength 1x drive 2x drive 5 Reserved 6 7 1 RW 1 RW 0 Test clock mode entry control Normal operation Test mode, controlled by Byte 6, Bit 7 RW 0 CPU, SRC, PCI PCIF, REF, USB48, DOT96 Only valid when Byte 6, Bit 7 is HIGH Hi-Z REF/N RW 0 Output(s) Affected Description / Function 0 1 BYTE 7 Bit Type Power On 0 Vendor ID R 1 1 Vendor ID R 0 2 Vendor ID R 1 3 Vendor ID R 0 4 Revision ID R 0 5 Revision ID R 0 6 Revision ID R 0 7 Revision ID R 0 7 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE BYTE 8(1,2) Bit Output(s) Affected 0 1 2 3 4 5 6 7 SRC0 SRC2 SRC4 Reserved SRC1 SRC3 SRC5 Reserved Description / Function 0 1 Controlled by CLKREQA#. When CLKREQA# is HIGH, output is Hi-Z Not Controlled Controlled Controlled by CLKREQB#. When CLKREQB# is HIGH, output is Hi-Z Not Controlled Controlled Type Power On RW RW RW RW RW RW RW RW 0 0 1 0 0 0 1 0 NOTES: 1. When SRCCLK outputs controlled by CLKREQA# and CLKREQB# are enabled, clock output behavior will follow SMBus control bits (per CK410 spec). 2. Assertion/de-assertion time of CLKREQ# pins will match PCI_STOP# timing of the CK410 spec. This is 15ns from the assertion/de-assertion of CLKREQ# to the drive/tie-state of the respective SRCCLK output. BYTE 9 (RESERVED) Bit Output(s) Affected 0 1 2 3 4 5 6 7 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Description/Function 0 1 Type Power On RW RW RW RW RW RW RW RW BYTE 10 Bit Output(s) Affected 0 1 2 3 4 5 6 7 Reserved Description / Function 0 1 N Programming enable Disable Enable USB PLL power down SRC PLL power down CPU PLL power down Normal Normal Normal Power Down Power Down PowerDown 0 1 Reserved Reserved Reserved Type Power On RW RW RW RW RW RW RW RW 0 0 0 0 0 0 0 0 Type Power On RW RW RW RW RW RW RW RW 1 0 0 0 1 0 0 0 BYTE 11 Bit Output(s) Affected Description / Function 0 1 2 3 4 5 6 7 SRC SMC0 SRC SMC1 SRC SMC2 Reserve CPU SMC0 CPU SMC1 CPU SMC2 Reserve SRC/PCI SSC control see SMC table CPU PLL SSC control see SMC table 8 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE BYTE 12 Bit Output(s) Affected 0 1 2 3 4 5 6 7 CPU_N0, LSB CPU_N1 CPU_N2 CPU_N3 CPU_N4 CPU_N5 CPU_N6 CPU_N7, MSB Description / Function CPU CLK = N* Resolution see Resolution table Bit Output(s) Affected Description / Function 0 1 2 3 4 5 6 7 SRC_N0, LSB SRC_N1 SRC_N2 SRC_N3 SRC_N4 SRC_N5 SRC_N6 SRC_N7, MSB 0 1 Type Power On RW RW RW RW RW RW RW RW 0 1 1 0 1 0 0 1 Type Power On RW RW RW RW RW RW RW RW 0 1 1 0 1 0 0 1 Type Power On RW RW RW RW RW RW RW RW 1 1 0 0 0 0 0 0 BYTE 13 0 1 SRC f = N*SRC Resolution Resolution = 0.666667 100MHz N= 150 BYTE 14 Bit Output(s) Affected 0 1 2 3 4 5 6 7 48MHzStr0 48MHStr1 REFStr0 REFStr1 PCIStrC0 PCIStrC1 PCIFStr0 PCIFStr1 Description / Function 0 1 (1) USB48MHz strength selection REF strength selection(1) PCI strength selection(1) PCIF strength selection(1) NOTE: 1. See S.E. Clock Strength Selection table. BYTE 15 Bit Output(s) Affected 0 1 2 3 4 5 6 7 PCI0 PCI1 PCI2 PCI3 Reserved Reserved Reserved Reserved Description / Function 0 1 Type Power On Allow controlled by PCI_STOP# assertion Free running, not affected by PCI_STOP# Stopped with PCI_STOP# RW RW RW RW 1 1 1 1 0 0 0 0 9 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE BYTES 16 - 20 ARE NOT TO BE USED BYTE 21, BLOCK READ BYTE COUNT(1) Bit Output(s) Affected Description / Function 0 1 Type Power On 0 0 1 1 2 1 3 0 4 1 5 0 6 0 7 0 NOTE: 1. The value contained in this register is used for index block read access on SM Bus. 10 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE ELECTRICAL CHARACTERISTICS - INPUT / SUPPLY / COMMON OUTPUT PARAMETERS Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = 0°C to +70°C, Supply Voltage: VDD = 3.3V ± 5% Symbol Parameter Test Conditions Min. Typ. Max. Unit VIH Input HIGH Voltage 3.3V ± 5% 2 — VDD + 0.3 V VIL Input LOW Voltage 3.3V ± 5% VSS - 0.3 — 0.8 V VIH_FS LOW Voltage, HIGH Threshold For FSA.B.C test_mode 0.7 — VDD + 0.3 V VIL_FS LOW Voltage, LOW Threshold For FSA.B.C test_mode VSS - 0.3 — 0.35 V IIH Input HIGH Current VIN = VDD –5 — 5 µA IIL1 Input LOW Current VIN = 0V, inputs with no pull-up resistors –5 — — µA IIL2 Input LOW Current VIN = 0V, inputs with pull-up resistors –200 — — µA IDD3.3OP Operating Supply Current Full active, CL = full load — — 400 mA IDD3.3PD Powerdown Current All differential pairs driven — — 70 mA All differential pairs tri-stated — — 12 VDD = 3.3V — 14.31818 — MHz — — 7 nH FI Input Frequency(1) LPIN Pin Inductance(2) CIN COUT Input Capacitance(2) CINX COUTX TSTAB Logic inputs — — 5 Output pin capacitance — — 6 XTAL_IN — — 5 pF XTAL_OUT — — 12 Clock Stabilization(2,3) From VDD power-up or de-assertion of PD to first clock — — 1.8 ms Modulation Frequency(2) Triangular modulation 30 — 33 KHz TDRIVE_SRC(2) SRC output enable after PCI_STOP# de-assertion — — 15 ns TDRIVE_PD(2) CPU output enable after PD de-assertion — — 300 us TFALL_PD(2) Fall time of PD — — 5 ns TRISE_PD(2) Rise time of PD — — 5 ns TDRIVE_CPU_STOP#(2) CPU output enable after CPU_STOP# de-assertion — — 10 ns TFALL_CPU_STOP#(2) Fall time of CPU_STOP# — — 5 ns TRISE_CPU_STOP#(2) Rise time of CPU_STOP# — — 5 ns NOTES: 1. Input frequency should be measured at the REF output pin and tuned to ideal 14.31818MHz to meet ppm frequency accuracy on PLL outputs. 2. This parameter is guaranteed by design, but not 100% production tested. 3. See TIMING DIAGRAMS for timing requirements. 11 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE ELECTRICAL CHARACTERISTICS - CPU, SRC, AND DOT96 0.7 CURRENT MODE DIFFERENTIAL PAIR(1) Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = 0°C to +70°C, Supply Voltage: VDD = 3.3V ± 5%; CL = 2pF Symbol Parameter Min. Typ. Max. Unit VO = VX 3000 — — Ω Output HIGH Voltage IOH = -1mA 2.4 — — V VOL3 Output LOW Voltage IOL = 1mA — — 0.4 V VHIGH Voltage HIGH(2) Statistical measurement on single-ended signal using 660 — 1150 mV VLOW Voltage LOW(2) oscilloscope math function –300 — 150 VOVS Max Voltage(2) Measurement on single-ended signal using absolute value — — 1150 VUDS Min Voltage(2) –300 — — VCROSS(ABS) Crossing Voltage (abs)(2) 250 — 550 mV d - VCROSS Crossing Voltage (var)(2) Variation of crossing over all edges — — 140 mV Static Error(2,3) See TPERIOD Min. - Max. values — — 0 ppm 400MHz nominal / -0.5% spread 2.4993 — 2.5133 333.33MHz nominal / -0.5% spread 2.9991 — 3.016 266.66MHz nominal / -0.5% spread 3.7489 — 3.77 200MHz nominal / -0.5% spread 4.9985 — 5.0266 166.66MHz nominal / -0.5% spread 5.9982 — 6.032 133.33MHz nominal / -0.5% spread 7.4978 — 7.54 100MHz nominal / -0.5% spread 9.997 — 10.0533 96MHz nominal 10.4135 — 10.4198 400MHz nominal / -0.5% spread 2.4143 — — 333.33MHz nominal / -0.5% spread 2.9141 — — 266.66MHz nominal / -0.5% spread 3.6639 — — 200MHz nominal / -0.5% spread 166.66MHz nominal / -0.5% spread 4.9135 5.9132 — — — — 133.33MHz nominal / -0.5% spread 7.4128 — — 100MHz nominal / -0.5% spread 9.912 — — Current Source Output Impedance(2) VOH3 ZO ppm TPERIOD TABSMIN Average Period(3) Absolute Min Period(2,3) Test Conditions 96MHz nominal mV ns ns 10.1635 — — tR Rise Time(2) VOL = 0.175V, VOH = 0.525V 175 — 700 ps tF Fall Time(2) VOL = 0.175V, VOH = 0.525V 175 — 700 ps d-tR Rise Time Variation(2) — — 125 ps d-tF dT3 Fall Time Variation(2) Duty Cycle(2) — 45 — — 125 55 ps % Measurement from differential waveform NOTES: 1. SRC clock outputs run only at 100MHz. 2. This parameter is guaranteed by design, but not 100% production tested. 3. All long term accuracy and clock period specifications are guaranteed with the assumption that the REF output is at 14.31818MHz. 12 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE ELECTRICAL CHARACTERISTICS - CPU, SRC, AND DOT96 0.7 CURRENT MODE DIFFERENTIAL PAIR, CONTINUED(1) Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = 0°C to +70°C, Supply Voltage: VDD = 3.3V ± 5%; CL = 2pF Symbol tSK3 Parameter Skew, CPU[1:0](2) Skew, CPU2(2) Skew, tJCYC-CYC Test Conditions VT = 50% SRC(2) Jitter, Cycle to Cycle, CPU[1:0](2) Jitter, Cycle to Cycle, CPU2(2) Measurement from differential waveform SRC(2) Jitter, Cycle to Cycle, Jitter, Cycle to Cycle, DOT96(2) Min. — — Typ. — — Max. 100 250 — — 250 — — 85 — — 100 — — — — 125 250 Unit ps ps NOTES: 1. SRC clock outputs run only at 100MHz. 2. This parameter is guaranteed by design, but not 100% production tested. ELECTRICAL CHARACTERISTICS - PCICLK / PCICLK_F Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = 0°C to +70°C, Supply Voltage: VDD = 3.3V ± 5%; CL = 10 - 30pF Symbol Parameter Test Conditions Min. Typ. Max. Unit ppm Static Error(1,2) See Tperiod Min. - Max. values TPERIOD Clock Period(2) — — 0 ppm 33.33MHz output nominal 29.991 — 30.009 ns 33.33MHz output spread 29.991 — 30.1598 VOH Output HIGH Voltage IOH = -1mA 2.4 — — V VOL Output LOW Voltage IOL = 1mA — — 0.55 V IOH Output HIGH Current VOH at Min. = 1V -33 — — mA VOH at Max. = 3.135V — — -33 VOL at Min. = 1.95V 30 — — IOL Output LOW Current mA VOL at Max. = 0.4V — — 38 Edge Rate(1) Rising edge rate 1 — 4 V/ns Edge Rate(1) Falling edge rate 1 — 4 V/ns tR1 Rise Time(1) VOL = 0.8V, VOH = 2V 0.3 — 1.2 ns tF1 Fall Time(1) VOL = 0.8V, VOH = 2V 0.3 — 1.2 ns VT = 1.5V 45 — 55 % VT = 1.5V — — 500 ps VT = 1.5V — — 500 ps Cycle(1) dT1 Duty tSK1 Skew(1) tJCYC-CYC Jitter, Cycle to Cycle(1) NOTES: 1. This parameter is guaranteed by design, but not 100% production tested. 2. All long term accuracy and clock period specifications are guaranteed with the assumption that the REF output is at 14.31818MHz. 13 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE ELECTRICAL CHARACTERISTICS, 48MHZ, USB Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = 0°C to +70°C, Supply Voltage: VDD = 3.3V ± 5%; CL = 10 - 20pF Symbol Parameter Test Conditions ppm Static Error(1,2) See Tperiod Min. - Max. values TPERIOD Clock Period(2) 48MHz output nominal VOH Output HIGH Voltage IOH = -1mA VOL Output LOW Voltage IOH Output HIGH Current IOL Output LOW Current Min. Typ. Max. Unit — — 0 ppm 20.8257 — 20.834 ns 2.4 — — V IOL = 1mA — — 0.55 V VOH at Min. = 1V -29 — — mA VOH at Max. = 3.135V — — -23 VOL at Min. = 1.95V 29 — — mA VOL at Max. = 0.4V — — 27 Edge Rate(1) Rising edge rate 1 — 2 V/ns Edge Rate(1) Falling edge rate 1 — 2 V/ns tR1 Rise Time(1) VOL = 0.8V, VOH = 2V 0.5 — 1.2 ns tF1 Fall Time(1) VOL = 0.8V, VOH = 2V 0.5 — 1.2 ns dT1 tJCYC-CYC Duty Cycle(1) VT = 1.5V Jitter, Cycle to Cycle 45 — 55 % — — 350 ps Min. Typ. Max. Unit — — 0 ppm 69.827 — 69.855 ns NOTES: 1. This parameter is guaranteed by design, but not 100% production tested. 2. All long term accuracy and clock period specifications are guaranteed with the assumption that the REF output is at 14.31818MHz. ELECTRICAL CHARACTERISTICS - REF-14.318MHZ Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = 0°C to +70°C, Supply Voltage: VDD = 3.3V ± 5%; CL = 10 - 20pF Symbol Parameter Test Conditions Long Accuracy(1) See Tperiod Min. - Max. values Clock Period 14.318MHz output nominal VOH Output HIGH Voltage(1) IOH = -1mA 2.4 — — V VOL Output LOW Voltage(1) IOL = 1mA — — 0.4 V IOH Output HIGH Current VOH at Min. = 1V -33 — — mA VOH at Max. = 3.135V — — -33 VOL at Min. = 1.95V 30 — — ppm TPERIOD IOL Output LOW Current mA VOL at Max. = 0.4V — — 38 Edge Rate(1) Rising edge rate 1 — 4 V/ns Edge Rate(1) Falling edge rate 1 — 4 V/ns tR1 Rise Time(1) VOL = 0.8V, VOH = 2V 0.3 — 1.2 ns tF1 Fall Time(1) VOL = 0.8V, VOH = 2V 0.3 — 1.2 ns VT = 1.5V 45 — 55 % VT = 1.5V — — 1000 ps dT1 tJCYC-CYC Duty Cycle(1) Jitter, Cycle to Cycle(1) NOTE: 1. This parameter is guaranteed by design, but not 100% production tested. 14 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE PCI STOP FUNCTIONALITY The PCI_STOP# signal is on an active low input controlling PCI and SRC outputs. If PCIF[1:0] and SRC clocks can be set to be free-running through SMBus programming, they will ignore both the PCI_STOP# pin and the PCI_STOP register bit. PCI_STOP# CPU CPU# SRC SRC# PCIF/PCI USB DOT96 DOT96# REF 1 Normal Normal Normal Normal 33MHz 48MHz Normal Normal 14.318MHz 0 Normal Normal IREF * 6 or float Low Low 48MHz Normal Normal 14.318MHz PCI_STOP# ASSERTION (TRANSITION FROM ‘1’ TO ‘0’) The clock samples the PCI_STOP# signal on a rising edge of PCIF clock. After detecting the PCI_STOP# assertion low, all PCI[6:0] and stoppable PCIF[1:0] clocks will latch low on their next high to low transition. After the PCI clocks are latched low, the SRC clock, (if set to stoppable) will latch high at IREF * 6 (or tristate if Byte 2 Bit 6 = 1) upon its next low to high transition and the SRC# will latch low as shown below. tSU PCI_STOP# PCIF[1:0] 33MHz PCI[6:0] 33MHz SRC 100MHz SRC# 100MHz PCI_STOP# - DE-ASSERTION The de-assertion of the PCI_STOP# signal is to be sampled on the rising edge of the PCIF free running clock domain. After detecting PCI_STOP# de-assertion, all PCI[6:0], stoppable PCIF[1:0] and stoppable SRC clocks will resume in a glitch free manner. tSU tDRIVE_SRC PCI_STOP# PCIF[1:0] 33MHz PCI[6:0] 33MHz SRC 100MHz SRC# 100MHz 15 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE CPU STOP FUNCTIONALITY The CPU_STOP# signal is an active low input controlling the CPU outputs. This signal can be asserted asynchronously. CPU_STOP# CPU CPU# SRC SRC# PCIF/PCI USB DOT96 DOT96# REF 1 Normal Normal Normal Normal 33MHz 48MHz Normal Normal 14.318MHz 0 IREF * 6 or float Low Normal Normal 33MHz 48MHz Normal Normal 14.318MHz CPU_STOP# ASSERTION (TRANSITION FROM ‘1’ TO ‘0’) Asserting CPU_STOP# pin stops all CPU outputs that are set to be stoppable after their next transition. When the SMBus CPU_STOP tri-state bit corresponding to the CPU output of interest is programmed to a ‘0’, CPU output will stop CPU_True = High and CPU_Complement = Low. When the SMBus CPU_STOP# tri-state bit corresponding to the CPU output of interest is programmed to a ‘1’, CPU outputs will be tri-stated. CPU_STOP# CPU CPU# CPU_STOP# - DE-ASSERTION (TRANSITION FROM ‘0’ TO ‘1’) With the de-assertion of CPU_STOP# all stopped CPU outputs will resume without a glitch. The maximum latency from the de-assertion to active outputs is two to six CPU clock periods. If the control register tristate bit corresponding to the output of interest is programmed to ‘1’, then the stopped CPU outputs will be driven High within 10nS of CPU_STOP# de-assertion to a voltage greater than 200mV. CPU_STOP# CPU CPU# CPU Internal tDRIVE_CPU_Stop 10nS > 200mV 16 IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE PD, POWER DOWN PD is an asynchronous active high input used to shut off all clocks cleanly prior to clock power. When PD is asserted high, all single-ended clocks will be driven low, and CPU# and SRC# will be left floating, before turning off the VCO. In PD de-assertion all clocks will start without glitches. PD CPU CPU# SRC SRC# PCIF/PCI USB 0 Normal 1 IREF * 2 or float Normal Normal Normal 33MHz Float IREF * 2 or float Float Low PD ASSERTION PD CPU 133MHz CPU# 133MHz SRC 100MHz SRC# 100MHz USB 48MHz PCI 33MHz REF 14.31818 17 DOT96 DOT96# REF 48MHz Normal Normal 14.318MHz Low IREF * 2 or float Float Low IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR COMMERCIAL TEMPERATURE RANGE PD DE-ASSERTION tSTAB