MOTOROLA Freescale Semiconductor, Inc. SEMICONDUCTOR TECHNICAL DATA Order this document by MPC942P/D DATA SHEET Freescale Semiconductor, Inc... Low Voltage 1:18 Clock Low Voltage 1:18 Clock Distribution Distribution Chip Chip MPC942P 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. The 18 outputs are 2.5V or 3.3V LVCMOS compatible and feature the drive strength to drive 50Ω series or parallel 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 microprocessor based design. • • • • • • MPC942P LOW VOLTAGE 1:18 CLOCK DISTRIBUTION CHIP LVPECL Clock Input 2.5V LVCMOS Outputs for Pentium II Microprocessor Support 200ps Maximum Targeted Output–to–Output Skew Maximum Output Frequency of 250MHz @ 3.3 VCC 32–Lead LQFP Packaging Single 3.3V or 2.5V Supply With a low output impedance (≈12Ω), in both the HIGH and LOW logic states, the output buffers of the MPC942 are ideal for driving series terminated transmission lines. With an output impedance of 12Ω the 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. FA SUFFIX 32–LEAD LQFP PACKAGE CASE 873A–02 The differential LVPECL inputs of the MPC942P allow the device to interface directly with a LVPECL fanout buffer like the MC100EP111 to build very wide clock fanout trees or to couple to a high frequency clock source. The OE pins will place the outputs into a high impedance state. The OE pin has an internal pullup resistor. The MPC942 is a single supply device. The VCC power pins require either 2.5V or 3.3V. The 32–lead LQFP package was chosen to optimize performance, board space and cost of the device. The 32–lead LQFP has a 7x7mm body size with a conservative 0.8mm pin spacing. Pentium II is a trademark of Intel Corporation. 02/01 For More Information On This Product, REV 1 1 Go by to:Integrated www.freescale.com Freescale Timing Solutions Organization has been acquired Device Technology, Inc IDT™ Low Voltage 1:18 Clock Distribution Chip Motorola, Inc. 2001 1 MPC942P MPC942P Low Voltage 1:18 Clock DistributionFreescale Chip Semiconductor, Inc. NETCOM MPC942P LOGIC DIAGRAM FUNCTION TABLE MPC942P Block Diagram Q0 PECL_CLK PECL_CLK Q1:Q16 OE Output 0 1 HIGH IMPEDANCE OUTPUTS ENABLED Q17 OE (Int. Pullup) Q6 Q7 Q8 VCC Q9 Q10 Q11 GND 24 23 22 21 20 19 18 17 GND 25 16 VCC Q5 26 15 Q12 Q4 27 14 Q13 Q3 28 13 Q14 VCC 29 12 GND Q2 30 11 Q15 Q1 31 10 Q16 Q0 32 9 Q17 1 2 3 4 5 6 7 8 GND OE NC PECL_CLK PECL_CLK VCC VCC MPC942P GND Freescale Semiconductor, Inc... Pinout: 32–Lead (Top View) ABSOLUTE MAXIMUM RATING Min Max Unit VCC Symbol Supply Voltage Parameter –0.3 3.6 V VI Input Voltage –0.3 VCC + 0.3 V IIN Input Current ±20 mA TStor Storage Temperature Range 125 °C –40 * Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is not implied. IDT™ Low Voltage 1:18 Clock Distribution Chip For More Information On This Product, MOTOROLA 2 Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc Go to: www.freescale.com 2 MPC942P TIMING SOLUTIONS DL207 — Rev 0 MPC942P Low Voltage 1:18 Clock DistributionFreescale Chip Semiconductor, Inc. NETCOM MPC942P DC CHARACTERISTICS (TA = 0° to 70°C, VCC = 2.5V ±5%) Freescale Semiconductor, Inc... Symbol Characteristic Min Typ Max Unit VCC V 0.8 V 0.6 1.0 V VCC–1.0 VCC–0.6 V VIH Input HIGH Voltage VIL Input LOW Voltage 2.0 VPP Input Swing PECL_CLK VX Input Crosspoint PECL_CLK VOH Output HIGH Voltage VOL Output LOW Voltage IIN Input Current CIN Input Capacitance 4.0 pF CPD Power Dissipation Capacitance 14 pF ZOUT Output Impedance 12 W ICC Maximum Quiescent Supply Current 0.5 5.0 mA Typ Max Unit 200 MHz 2.0 Condition V IOH = –16 mA 0.5 V IOL = 16 mA ±200 µA Per Output AC CHARACTERISTICS (TA = 0° to 70°C, VCC = 2.5V ±5%) Symbol Characteristic Min Condition Fmax Maximum Frequency tPLH Propagation Delay 1.8 4.0 ns tPHL Propagation Delay 2.0 4.3 ns tsk(o) Output–to–Output Skew 200 ps tsk(pr) Part–to–Part Skew 2.2 ns Note 2 tsk(pr) Part–to–Part Skew 1.3 ps Note 1 1.0 ns tr, tf Output Rise/Fall Time 1. For a specific temperature and voltage, includes output skew. 2. Across temperature and voltage ranges, includes output skew. 0.1 IDT™ Low Voltage 1:18 Clock Distribution Chip For More Information On This Product, TIMING SOLUTIONS 3 Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc Go to: www.freescale.com DL207 — Rev 0 3 MPC942P MOTOROLA MPC942P Low Voltage 1:18 Clock DistributionFreescale Chip Semiconductor, Inc. NETCOM MPC942P DC CHARACTERISTICS (TA = 0° to 70°C, VCC = 3.3V ±5%) Freescale Semiconductor, Inc... Symbol Characteristic Min Typ Max Unit VCC V 0.8 V 0.6 1.0 V VCC–1.0 VCC–0.6 V VIH Input HIGH Voltage VIL Input LOW Voltage 2.4 VPP Input Swing PECL.CLK VX Input Crosspoint PECL_CLK VOH Output HIGH Voltage VOL Output LOW Voltage IIN Input Current CIN Input Capacitance 4.0 pF CPD Power Dissipation Capacitance 14 pF ZOUT Output Impedance 12 W ICC Maximum Quiescent Supply Current 0.5 5.0 mA Typ Max Unit 250 MHz 2.4 Condition V IOH = –20 mA 0.6 V IOL = 20 mA ±200 µA Per Output AC CHARACTERISTICS (TA = 0° to 70°C, VCC = 3.3V ±5%) Symbol Characteristic Min Condition Fmax Maximum Frequency tPLH Propagation Delay 1.5 3.2 ns tPHL Propagation Delay 1.5 3.6 ns tsk(o) Output–to–Output Skew 200 ps tsk(pr) Part–to–Part Skew 1.7 ns Note 2 tsk(pr) Part–to–Part Skew 1.0 ps Note 1 1.0 ns tr, tf Output Rise/Fall Time 1. For a specific temperature and voltage, includes output skew. 2. Across temperature and voltage ranges, includes output skew. 0.1 IDT™ Low Voltage 1:18 Clock Distribution Chip For More Information On This Product, MOTOROLA 4 Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc Go to: www.freescale.com 4 MPC942P TIMING SOLUTIONS DL207 — Rev 0 MPC942P Low Voltage 1:18 Clock DistributionFreescale Chip Semiconductor, Inc. NETCOM MPC942P OUTLINE DIMENSIONS A –T–, –U–, –Z– FA SUFFIX LQFP PACKAGE CASE 873A–02 ISSUE A 4X A1 32 0.20 (0.008) AB T–U Z 25 AE P 1 –U– –T– AE V B1 DETAIL Y 17 8 9 4X –Z– 9 DETAIL Y V1 0.20 (0.008) AC T–U Z S1 S DETAIL AD G –AB– 0.10 (0.004) AC AC T–U Z –AC– BASE METAL ÉÉ ÉÉ ÉÉ F 8X M_ R J M N D 0.20 (0.008) SEATING PLANE SECTION AE–AE H W K X DETAIL AD Q_ 0.250 (0.010) C E GAUGE PLANE Freescale Semiconductor, Inc... B NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DATUM PLANE –AB– IS LOCATED AT BOTTOM OF LEAD AND IS COINCIDENT WITH THE LEAD WHERE THE LEAD EXITS THE PLASTIC BODY AT THE BOTTOM OF THE PARTING LINE. 4. DATUMS –T–, –U–, AND –Z– TO BE DETERMINED AT DATUM PLANE –AB–. 5. DIMENSIONS S AND V TO BE DETERMINED AT SEATING PLANE –AC–. 6. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. ALLOWABLE PROTRUSION IS 0.250 (0.010) PER SIDE. DIMENSIONS A AND B DO INCLUDE MOLD MISMATCH AND ARE DETERMINED AT DATUM PLANE –AB–. 7. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. DAMBAR PROTRUSION SHALL NOT CAUSE THE D DIMENSION TO EXCEED 0.520 (0.020). 8. MINIMUM SOLDER PLATE THICKNESS SHALL BE 0.0076 (0.0003). 9. EXACT SHAPE OF EACH CORNER MAY VARY FROM DEPICTION. DIM A A1 B B1 C D E F G H J K M N P Q R S S1 V V1 W X IDT™ Low Voltage 1:18 Clock Distribution Chip For More Information On This Product, TIMING SOLUTIONS 5 Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc Go to: www.freescale.com DL207 — Rev 0 5 MILLIMETERS MIN MAX 7.000 BSC 3.500 BSC 7.000 BSC 3.500 BSC 1.400 1.600 0.300 0.450 1.350 1.450 0.300 0.400 0.800 BSC 0.050 0.150 0.090 0.200 0.500 0.700 12_ REF 0.090 0.160 0.400 BSC 1_ 5_ 0.150 0.250 9.000 BSC 4.500 BSC 9.000 BSC 4.500 BSC 0.200 REF 1.000 REF INCHES MIN MAX 0.276 BSC 0.138 BSC 0.276 BSC 0.138 BSC 0.055 0.063 0.012 0.018 0.053 0.057 0.012 0.016 0.031 BSC 0.002 0.006 0.004 0.008 0.020 0.028 12_ REF 0.004 0.006 0.016 BSC 1_ 5_ 0.006 0.010 0.354 BSC 0.177 BSC 0.354 BSC 0.177 BSC 0.008 REF 0.039 REF MPC942P MOTOROLA MPC942P MPC92459 PART NUMBERS 900 Low MHz Voltage Low1:18 Voltage Clock LVDS Distribution Clock Synthesizer Chip TITLE INSERT PRODUCT NAME AND DOCUMENT NETCOM NETCOM Innovate with IDT and accelerate your future networks. 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