IDTCV142PAG8 IDT, Integrated Device Technology Inc, IDTCV142PAG8 Datasheet

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IDTCV142PAG8

Manufacturer Part Number
IDTCV142PAG8
Description
IC FLEXPC CLK PROGR P4 56-TSSOP
Manufacturer
IDT, Integrated Device Technology Inc
Series
FlexPC™r
Type
PC Clockr
Datasheet

Specifications of IDTCV142PAG8

Input
Crystal
Output
Clock
Frequency - Max
400MHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
56-TSSOP
Frequency-max
400MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
CV142PAG8
FEATURES:
• 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
• One high precision PLL for 96MHz/48MHz
• Band-gap circuit for differential outputs
• Support spread spectrum modulation, –0.5 down spread and
• Support SMBus block read/write, index read/write
• Selectable output strength for REF
• Allows for CPU frequency to change to a slower frequency to
• Smooth transition for N programming
• Available in TSSOP package
KEY SPECIFICATIONS:
• CPU/SRC CLK cycle to cycle jitter < 85ps
• SATA CLK cycle to cycle jitter < 85ps
• PCI CLK cycle to cycle jitter < 250ps
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
© 2005 Integrated Device Technology, Inc.
FUNCTIONAL BLOCK DIAGRAM
IDTCV142
PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR
frequency, SSC and N programming
others
conserve power when an application is less execution-
intensive
V
TT_
CPU_STOP#
SEL100/96#
P
CLKREQA#
CLKREQB#
PCI_STOP#
XTAL_OUT
WRGD
XTAL_IN
FSA.B.C
SDATA
SCLK
#/PD
100/96MHz
Controller
Osc Amp
SM Bus
Control
XTAL
Logic
SEL
PROGRAMMABLE FLEXPC
CLOCK FOR P4 PROCESSOR
N Programmable
N Programmable
PLL3
PLL1
PLL2
SSC
SSC
1
DESCRIPTION:
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 I
which can provide more robust system performance. Each CPU/SRC has its
own Spread Spectrum selection.
OUTPUTS:
• 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
IDTCV142 is a 56 pin clock device, complying with Intel CK410M requirements
48MHz/96MHz
Output Buffer
Output Buffer
Output BUffer
Stop Logic
Stop Logic
CPU CLK
SRC CLK
REF
I
I
REF
REF
to reduce the impact of V
ITP_EN
COMMERCIAL TEMPERATURE RANGE
CPU_ITP/SRC7
REF
SRC[5:1]
PCI[3:0], PCIF[1:0]
48MHz
DOT96
CPU[1:0]
DD
variation on differential outputs,
FEBRUARY 2005
IDTCV142
DSC 6584/18

Related parts for IDTCV142PAG8

IDTCV142PAG8 Summary of contents

Page 1

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR FEATURES: • 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 ...

Page 2

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR PIN CONFIGURATION V _PCI _PCI PCI1 4 PCI2 5 PCI3 V _PCI _PCI 7 DD PCIF0 _ 8 /ITP EN PCIF1 ...

Page 3

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR PIN DESCRIPTION Pin Number Name 1 V _PCI _PCI SS 3 PCI1 4 PCI2 5 PCI3 6 V _PCI _PCI DD 8 PCIF0/ITP_EN 9 PCIF1 10 V ...

Page 4

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR PIN DESCRIPTION (CONT.) Pin Number Name 43 CPU0# 44 CPU0 45 V _CPU SS 46 SCL 47 SDA 48 V _REF DD 49 XTAL_OUT 50 XTAL_IN 51 V _REF SS 52 REF 53 ...

Page 5

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR SSC MAGNITUDE CONTROL FOR CPU, SRC, AND SMC SMC[2:0] 000 001 010 011 100 101 110 111 CONTROL REGISTERS N PROGRAMMING PROCEDURE Use Index byte write. • For N programming, the user only ...

Page 6

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR BYTE 1 Bit Output(s) Affected 0 CPU[2:0], SRC[7:0], PCI[5:0], PCIF[1:0] 1 CPU0, CPU0# 2 CPU1, CPU1# 3 Reserved 4 REF 5 USB48 6 DOT96 7 PCIF0 BYTE 2 Bit Output(s) Affected 0 PCIF1 ...

Page 7

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR BYTE 5 Bit Output(s) Affected 0 CPU0, CPU0# 1 CPU1, CPU1# 2 CPU2, CPU2# 3 SRCS 4 CPU0 5 CPU1 6 CPU2 7 SRCS BYTE 6 Bit Output(s) Affected 0 CPU[2:0] 1 CPU[2:0] ...

Page 8

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR BYTE 8 (1,2) Bit Output(s) Affected 0 SRC0 1 SRC2 Controlled by CLKREQA#. When CLKREQA# 2 SRC4 3 Reserved 4 SRC1 5 SRC3 Controlled by CLKREQB#. When CLKREQB# 6 SRC5 7 Reserved NOTES: ...

Page 9

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR BYTE 12 Bit Output(s) Affected 0 CPU_N0, LSB 1 CPU_N1 2 CPU_N2 3 CPU_N3 4 CPU_N4 5 CPU_N5 6 CPU_N6 7 CPU_N7, MSB BYTE 13 Bit Output(s) Affected 0 SRC_N0, LSB 1 SRC_N1 ...

Page 10

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR BYTES ARE NOT TO BE USED BYTE 21, BLOCK READ BYTE COUNT Bit Output(s) Affected NOTE: 1. The value contained in this ...

Page 11

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR ELECTRICAL CHARACTERISTICS - INPUT / SUPPLY / COMMON OUTPUT PARAMETERS Following Conditions Apply Unless Otherwise Specified: Operating Condition 0°C to +70°C, Supply Voltage Symbol Parameter V Input HIGH Voltage ...

Page 12

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR ELECTRICAL CHARACTERISTICS - CPU, SRC, AND DOT96 0.7 CURRENT MODE DIFFERENTIAL PAIR (1) Following Conditions Apply Unless Otherwise Specified: Operating Condition 0°C to +70°C, Supply Voltage Symbol Parameter Z ...

Page 13

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR ELECTRICAL CHARACTERISTICS - CPU, SRC, AND DOT96 0.7 CURRENT MODE DIFFERENTIAL PAIR, CONTINUED Following Conditions Apply Unless Otherwise Specified: Operating Condition 0°C to +70°C, Supply Voltage Symbol Parameter (2) ...

Page 14

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR ELECTRICAL CHARACTERISTICS, 48MHZ, USB Following Conditions Apply Unless Otherwise Specified: Operating Condition 0°C to +70°C, Supply Voltage Symbol Parameter (1,2) ppm Static Error (2) T Clock Period PERIOD V ...

Page 15

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR PCI STOP FUNCTIONALITY The PCI_STOP# signal 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 ...

Page 16

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR 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# 1 Normal Normal float ...

Page 17

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR PD, POWER DOWN 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, ...

Page 18

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR PD DE-ASSERTION PD CPU 133MHz CPU# 133MHz SRC 100MHz SRC# 100MHz USB 48MHz PCI 33MHz REF 14.31818 t <1.8mS STAB t DRIVE_PD <300μS, <200mV 18 COMMERCIAL TEMPERATURE RANGE ...

Page 19

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR DIFFERENTIAL CLOCK TRISTATE To minimize power consumption, CPU[2:0] clock outputs are individually configurable through SMBus to be driven or tristated during PD and CPU_STOP# mode and the SRC clock is configurable to be ...

Page 20

IDTCV142 PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR ORDERING INFORMATION IDTCV XXX XX Device Type Package CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 X Grade Blank Commercial Temperature Range (0°C to +70°C) PA Thin Small Shrink Outline ...

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