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M30833FJGP 数据表(PDF) 59 Page - Renesas Technology Corp |
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M30833FJGP 数据表(HTML) 59 Page - Renesas Technology Corp |
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59 / 94 page ![]() Page 59 1 9 f o 6 0 0 2 , 1 3 . n a J 1 4 . 1 . v e R 1 4 1 0 - 3 1 0 0 B 3 0 J E R ) T 3 8 / C 2 3 M , 3 8 / C 2 3 M ( p u o r G 3 8 / C 2 3 M BCLK DW DB MAi Vcc=5V RAS CASL CASH Hi-Z tac4(CAS-DB)(2) 18ns.max th(BCLK-CAD) -3ns.min tcyc td(BCLK-RAD) tac4(RAS-DB)(2) Row address Column address th(BCLK-RAD) -3ns.min 18ns.max(1) td(BCLK-CAD) 18ns.max(1) td(BCLK-RAS) 18ns.max(1) td(BCLK-CAS) th(RAS-RAD)(2) tRP(2) tac4(CAD-DB)(2) th(BCLK-RAS) -3ns.min th(BCLK-CAS) -3ns.min 0ns.min tsu(DB-BCLK) 26ns.min(1) th(CAS-DB) Measurement Conditions: • VCC=4.2 to 5.5V • Input high and low voltage: VIH=2.5V, VIL=0.8V • Output high and low voltage: VOH=2.0V, VOL=0.8V Read Timing Memory Expansion Mode and Microprocessor Mode (When accessing the DRAM area) NOTES: 1. Values guaranteed only when the microcomputer is used independently. A maximum of 35ns is guaranteed for the following combinations. td(BCLK-RAS) + tsu(DB-BCLK) td(BCLK-CAS) + tsu(DB-BCLK) td(BCLK-CAD) + tsu(DB-BCLK) 2. Varies with operation frequency: tac4(RAS-DB)=(tcyc/2 x m-35)ns.max (m=3 with 1 wait state and m=5 with 2 wait states) tac4(CAS-DB)=(tcyc/2 x n-35)ns.max (n=1 with 1 wait state and n=3 with 2 wait states) tac4(CAD-DB)=(tcyc x l-35)ns.max (l=1 with 1 wait state and l=2 with 2 wait states) th(RAS-RAD)=(tcyc/2-13)ns.min tRP=(tcyc/2 x 3-20)ns.min Figure 5.5 VCC=5V Timing Diagram (4) |
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