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SPC5643AF0MLU3 数据表(PDF) 87 Page - Freescale Semiconductor, Inc |
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SPC5643AF0MLU3 数据表(HTML) 87 Page - Freescale Semiconductor, Inc |
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87 / 138 page ![]() MPC5644A Microcontroller Data Sheet, Rev. 7 Freescale Semiconductor 87 3.9.2 LVDS pad specifications LVDS pads are implemented to support the MSC (Microsecond Channel) protocol which is an enhanced feature of the DSPI module. The LVDS pads are compliant with LVDS specifications and support data rates up to 50 MHz. Table 24. VRC33 pad average DC current1 1 These are typical values that are estimated from simulation and not tested. Currents apply to output pins only. Pad Type Symbol C Period (ns) Load2 (pF) 2 All loads are lumped. VRC33 (V) VDDE (V) Drive Select IDD33 Avg (µA) IDD33 RMS (µA) Fast IDRV_FC CC D 10 50 3.6 3.6 11 2.35 6.12 CC D 10 30 3.6 3.6 10 1.75 4.3 CC D 10 20 3.6 3.6 01 1.41 3.43 CC D 10 10 3.6 3.6 00 1.06 2.9 CC D 10 50 3.6 1.98 11 1.75 4.56 CC D 10 30 3.6 1.98 10 1.32 3.44 CC D 10 20 3.6 1.98 01 1.14 2.95 CC D 10 10 3.6 1.98 00 0.95 2.62 Table 25. DSPI LVDS pad specification # Characteristic Symbol C Condition Min. Value Typ. Value Max. Value Unit Data Rate 4 Data Frequency fLVDSCLK CC D — 50 MHz Driver Specs 5 Differential output voltage VOD CC P SRC=0b00 or 0b11 150 400 mV CC P SRC=0b01 90 320 CC P SRC=0b10 160 480 6 Common mode voltage (LVDS), VOS VOD CC P 1.06 1.2 1.39 V 7 Rise/Fall time TR/TF CC D — 2 ns 8 Propagation delay (Low to High) TPLH CC D 4 ns 9 Propagation delay (High to Low) TPHL CC D — 4 ns 10 Delay (H/L), sync Mode tPDSYNC CC D 4 ns |
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