MPC9448 Motorola, MPC9448 Datasheet
MPC9448
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MPC9448 Summary of contents
Page 1
... All inputs have an internal pull--up or pull--down resistor preventing unused and open inputs from floating. The device supports a 2.5V or 3.3V power supply and an ambient temperature range of --40°C to +85°C. The MPC9448 is pin and function compatible but performance--enhanced to the MPC948. ...
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... For More Information On This Product, Go to: www.freescale.com MPC9448 Figure 2. 32- -Lead Package Pinout (Top View) 1 CCLK input selected ...
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... PP b. Input pull-up / pull-down resistors influence input current. c. The MPC9448 is capable of driving 50Ω transmission lines on the incident edge. Each output drives one 50Ω parallel terminated transmission line to a termination voltage of V VCC=3.3V) or one 50Ω series terminated transmission line (for VCC=2.5V). ...
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... V (DC) specification Input pull-up / pull-down resistors influence input current. c. The MPC9448 is capable of driving 50Ω transmission lines on the incident edge. Each output drives one 50Ω parallel terminated transmission line to a termination voltage of V VCC=2.5V the DC current consumption of the device with all outputs open and the input in its default state or open ...
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... Using CCLK Using PCLK < 350 MHz and using CCLK 45 <200 MHz and using PCLK 45 0 impacts t CMR pLH 5 For More Information On This Product, Go to: www.freescale.com MPC9448 Typ Max Unit Condition 350 MHz 350 MHz 1000 mV LVPECL V -0.8 V LVPECL ...
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... The waveform plots in Figure 5 “Single versus Dual Line Termination Waveforms” show the simulation results of an output driving a single line versus two lines. In both cases, the drive capability of the MPC9448 output buffer is more than sufficient to drive 50Ω transmission lines on the incident = 50Ω ...
Page 7
... Increased power consumption will increase the die junction temperature and impact the device reliability (MTBF). According to the system-defined tolerable MTBF, the die junction temperature of the MPC9448 needs 50Ω controlled and the thermal impedance of the board/package should be optimized. The power dissipated in the MPC9448 is represented in equation 1 ...
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... The following eight derating charts describe the safe frequency operation range for the MPC9448. The charts were calculated for a maximum tolerable die junction temperature of 110°C (120°C), corresponding to an estimated MTBF of 9 ...
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... Freescale Semiconductor, Inc. The Following Figures Illustrate the Measurement Reference for the MPC9448 Clock Driver Circuit Pulse Generator Ω Figure 11. CCLK MPC9448 AC Test Reference for V Differential Pulse Generator Ω Figure 12. PCLK MPC9448 AC Test Reference TIMING SOLUTIONS MPC9448 DUT Ω ...
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... Freescale Semiconductor, Inc. MPC9448 PCLK V PP PCLK P(LH) P(HL) Figure 13. Propagation Delay ( SK(LH) The pin--to--pin skew is defined as the worst case difference in propagation delay between any similar delay path within a single device Figure 15. Output- -to- -Output Skew 100%) P ...
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... SECTION 0.25 GAUGE PLANE L θ For More Information On This Product, Go to: www.freescale.com MPC9448 e DETAIL G NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DATUMS A, B, AND DETERMINED AT DATUM PLANE H. 4. DIMENSIONS D AND DETERMINED AT SEATING PLANE C ...
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... Minami--Azabu, Minato--ku, Tokyo 106--8573 Japan 81--3--3440--3569 MOTOROLA ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, 2, Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. 852--26668334 HOME PAGE: http://motorola.com/semiconductors ◊ 12 For More Information On This Product, Go to: www.freescale.com MPC9448/D TIMING SOLUTIONS ...