MPC942CFA

MOTOROLA Freescale Semiconductor, Inc. SEMICONDUCTOR TECHNICAL DATA Freescale Semiconductor, Inc... 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. 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. • • • • • • Order this document by MPC942C/D MPC942C LOW VOLTAGE 1:18 CLOCK DISTRIBUTION CHIP 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 VCC 32–Lead TQFP 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 TQFP PACKAGE CASE 873A–02 The LVCMOS/LVTTL input of the MPC942C provides a more standard LVCMOS interface. 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 TQFP package was 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, Inc. 2001 For More Information On This Product, REV 0 1 Go to: www.freescale.com Freescale Semiconductor, Inc. MPC942C LOGIC DIAGRAM MPC942C Block Diagram FUNCTION TABLE Q0 LVCMOS_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 LVCMOS_CLK NC OE NC VCC VCC MPC942C GND Freescale Semiconductor, Inc... Pinout: 32–Lead (Top View) ABSOLUTE MAXIMUM RATING Symbol Parameter Min Max Unit V VCC Supply Voltage –0.3 3.6 VI Input Voltage –0.3 VCC + 0.3 V IIN Input Current ±20 mA TStor Storage Temperature Range 125 °C –40 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. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. MOTOROLA For More Information On This Product, 2 Go to: www.freescale.com TIMING SOLUTIONS DL207 — Rev 0 Freescale Semiconductor, Inc. MPC942C DC CHARACTERISTICS (TA = 0° to 70°C, VCCI = 2.5V ±5%, VCCO = 2.5V ±5%) Freescale Semiconductor, Inc... Symbol Characteristic Min Typ 2.0 Max Unit VCCI V 0.8 V VIH Input HIGH Voltage VIL Input LOW Voltage 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 mA 2.0 Condition V IOH = –16 mA 0.5 V IOL = 16 mA ±200 µA Per Output AC CHARACTERISTICS (TA = 0° to 70°C, VCCI = 2.5V ±5%, VCCO = 2.5V ±5%) Symbol Characteristic Min Typ Max Unit 200 MHz Condition Fmax Maximum Frequency tPLH Propagation Delay 2.8 ns tsk(o) Output–to–Output Skew 200 ps tsk(pr) Part–to–Part Skew 1.3 ns Notes 1, 2 tsk(pr) Part–to–Part Skew 600 ps Notes 1, 3 dt Duty Cycle 45 55 % tr, tf Output Rise/Fall Time 0.2 1.0 ns Max Unit VCCI V 0.8 V 1.5 DC CHARACTERISTICS (TA = 0° to 70°C, VCCI = 3.3V ±5%, VCCO = 3.3V ±5%) Symbol Characteristic Min Typ VIH Input HIGH Voltage 2.4 VIL Input LOW Voltage 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 mA 2.4 Condition V IOH = –20 mA 0.5 V IOL = 20 mA ±200 µA Per Output AC CHARACTERISTICS (TA = 0° to 70°C, VCCI = 3.3V ±5%, VCCO = 3.3V ±5%) Symbol Characteristic Min Max Unit 250 MHz 2.3 ns Output–to–Output Skew 200 ps Part–to–Part Skew 1.0 ns Notes 1, 2 500 ps Notes 1, 3 55 % 1.0 ns Fmax Maximum Frequency tPLH Propagation Delay tsk(o) tsk(pr) tsk(pr) Part–to–Part Skew dt Duty Cycle 45 tr, tf Output Rise/Fall Time 0.2 1.3 Typ Condition Note 1 1. Tested using standard input levels, production tested @ 133 MHz. 2. Across temperature and voltage ranges, includes output skew. 3. For a specific temperature and voltage, includes output skew. TIMING SOLUTIONS DL207 — Rev 0 For More Information On This Product, 3 Go to: www.freescale.com MOTOROLA Freescale Semiconductor, Inc. MPC942C OUTLINE DIMENSIONS A –T–, –U–, –Z– FA SUFFIX TQFP 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 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 Mfax is a trademark of Motorola, Inc. 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 JAPAN: Motorola Japan Ltd.; SPD, Strategic Planning Office, 141, 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan. 81–3–5487–8488 Customer Focus Center: 1–800–521–6274 Mfax: RMFAX0@email.sps.mot.com – TOUCHTONE 1–602–244–6609 ASIA / PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, Motorola Fax Back System – US & Canada ONLY 1–800–774–1848 2, Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. – http://sps.motorola.com/mfax/ 852–26668334 HOME PAGE: http://motorola.com/sps/ MOTOROLA ◊For More Information On This Product, 4 Go to: www.freescale.com MPC942C/D TIMING SOLUTIONS DL207 — Rev 0