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MPC5675K датащи(PDF) 96 Page - Freescale Semiconductor, Inc |
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MPC5675K датащи(HTML) 96 Page - Freescale Semiconductor, Inc |
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96 / 140 page ![]() MPC5675K Microcontroller Data Sheet, Rev. 4 Preliminary—Subject to Change Without Notice Electrical characteristics Freescale Semiconductor 96 3.19 DRAM pad specifications This section specifies the electrical characteristics of the DRAM pads. Please refer to the tables in Section 2.2, Pin descriptions, for a cross reference between package pins and pad types. DRAM pads feature list: • Driver — Configurable to support LPDDR half strength, LPDDR full strength, DDR1, DDR2 half strength, DDR2 full strength, and SDR modes. — VDD_HV_DRAM Range of – 1.8 V nominal – 2.5 V nominal – 3.3 V nominal • Receiver — Differential or pseudo-differential input buffer in all DRAM pads Table 45. PDI pads AC electrical specifications (VDD_HV_PDI = 1.8 V) No. Name Prop. Delay (ns) L H/H L1 NOTES: 1 L H signifies low-to-high propagation delay and H L signifies high-to-low propagation delay. Rise/Fall Edge (ns) Drive Load (pF) Drive/Slew Rate Select Min Max Min Max MSB, LSB 1 PDI Medium — 5.5/3.5 2/1 — 50 11 12/5.5 7.2/2.3 200 49/17 13/6 50 10 60/23 21/9.2 200 102/32 26/12 50 01 119/39 35/16 200 722/216 172/85 50 00 772/237 191/90 200 2 PDI Fast — 10/10 2/2 — 50 11 15/15 6.2/6.2 200 15/15 4.5/4.5 50 10 22/22 7.1/7.1 200 24/24 7.5/7.5 50 01 33/33 12/12 200 66/66 24/24 50 00 84/84 31/31 200 |
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