MPC942CFA Freescale Semiconductor, MPC942CFA Datasheet

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MPC942CFA

Manufacturer Part Number
MPC942CFA
Description
IC DRVR CLK PLL 2.5/3.3V 32-TQFP
Manufacturer
Freescale Semiconductor
Type
Clock Distributionr
Datasheet

Specifications of MPC942CFA

Input
LVCMOS
Output
LVCMOS
Frequency - Max
250MHz
Voltage - Supply
2.375 V ~ 3.465 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
32-TQFP, 32-VQFP
Frequency-max
250MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MPC942CFA
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Low Voltage 1:18 Clock
Distribution Chip
3.3V LVCMOS output capabilities. The device is offered in two versions;
the MPC942C has an LVCMOS input clock while the MPC942P has a
LVPECL input clock. The 18 outputs are 2.5V or 3.3V LVCMOS
compatible and feature the drive strength to drive 50
terminated transmission lines. With output–to–output skews of 200ps, the
MPC942 is ideal as a clock distribution chip for the most demanding of
synchronous systems. The 2.5V outputs also make the device ideal for
supplying clocks for a high performance Pentium II
based design.
states, the output buffers of the MPC942 are ideal for driving series
terminated transmission lines. With an output impedance of 12
MPC942 can drive two series terminated transmission lines from each
output. This capability gives the MPC942 an effective fanout of 1:36. The
MPC942 provides enough copies of low skew clocks for most high
performance synchronous systems.
into a high impedance state. The OE pin has an internal pullup resistor.
chosen to optimize performance, board space and cost of the device. The 32–lead TQFP has a 7x7mm body size with a
conservative 0.8mm pin spacing.
Pentium II is a trademark of Intel Corporation.
02/01
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 2001
LVCMOS/LVTTL Clock Input
2.5V LVCMOS Outputs for Pentium II Microprocessor Support
150ps Maximum Targeted Output–to–Output Skew
Maximum Output Frequency of 250MHz @ 3.3 V CC
32–Lead TQFP Packaging
Single 3.3V or 2.5V Supply
The MPC942 is a 1:18 low voltage clock distribution chip with 2.5V or
With a low output impedance ( 12 ), in both the HIGH and LOW logic
The LVCMOS/LVTTL input of the MPC942C provides a more standard LVCMOS interface. The OE pins will place the outputs
The MPC942 is a single supply device. The V CC power pins require either 2.5V or 3.3V. The 32–lead TQFP package was
Freescale Semiconductor, Inc.
For More Information On This Product,
1
Go to: www.freescale.com
series or parallel
microprocessor
the
REV 0
DISTRIBUTION CHIP
32–LEAD TQFP PACKAGE
MPC942C
LOW VOLTAGE
1:18 CLOCK
CASE 873A–02
FA SUFFIX
Order this document
by MPC942C/D

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MPC942CFA Summary of contents

Page 1

... Freescale Semiconductor, Inc. MOTOROLA SEMICONDUCTOR TECHNICAL DATA Low Voltage 1:18 Clock Distribution Chip The MPC942 is a 1:18 low voltage clock distribution chip with 2.5V or 3.3V LVCMOS output capabilities. The device is offered in two versions; the MPC942C has an LVCMOS input clock while the MPC942P has a LVPECL input clock ...

Page 2

... Freescale Semiconductor, Inc. MPC942C LOGIC DIAGRAM MPC942C Block Diagram LVCMOS_CLK OE (Int. Pullup) GND VCC ABSOLUTE MAXIMUM RATING Symbol Parameter V CC Supply Voltage V I Input Voltage I IN Input Current T Stor Storage Temperature Range Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...

Page 3

... Freescale Semiconductor, Inc. DC CHARACTERISTICS ( CCI = 2.5V 5%, V CCO = 2.5V 5%) Symbol Characteristic V IH Input HIGH Voltage V IL Input LOW Voltage V OH Output HIGH Voltage V OL Output LOW Voltage I IN Input Current C IN Input Capacitance C PD Power Dissipation Capacitance Z OUT Output Impedance I CC Maximum Quiescent Supply Current AC CHARACTERISTICS ( CCI = 2 ...

Page 4

... Freescale Semiconductor, Inc. MPC942C –T– DETAIL –Z– –AB– SEATING –AC– PLANE 0.10 (0.004 DETAIL AD How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 Customer Focus Center: 1– ...

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