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TMS320C31PQL60 数据表(PDF) 16 Page - Texas Instruments |
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TMS320C31PQL60 数据表(HTML) 16 Page - Texas Instruments |
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16 / 48 page ![]() TMS320C31, TMS320LC31 DIGITAL SIGNAL PROCESSORS SPRS035B – MARCH 1996 – REVISED JANUARY 1999 16 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 timing Timing specifications apply to the TMS320C31 and TMS320LC31. X2/CLKIN, H1, and H3 timing The following table defines the timing parameters for the X2/CLKIN, H1, and H3 interface signals. The numbers shown in Figure 10 and Figure 11 correspond with those in the NO. column of the table below. timing parameters for X2/CLKIN, H1, H3 (see Figure 10 and Figure 11) NO. ’LC31 ’C31-40 ’LC31-40 ’C31-50 ’C31-60 ’C31-80 UNIT MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX 1 tf(CI) Fall time, CLKIN 5† 5† 5† 4† 4† ns 2 tw(CIL) Pulse duration, CLKIN low tc(CI) = min 10 9 7 6 5 ns 3 tw(CIH) Pulse duration, CLKIN high tc(CI) = min 10 9 7 6 5 ns 4 tr(CI) Rise time, CLKIN 5† 5† 5† 4† 4† ns 5 tc(CI) Cycle time, CLKIN 30 303 25 303 20 303 16.67 303 12.5 303 ns 6 tf(H) Fall time, H1 and H3 3 3 3 3 3 ns 7 tw(HL) Pulse duration, H1 and H3 low P–6‡ P–5‡ P–5‡ P–4‡ P–3‡ ns 8 tw(HH) Pulse duration, H1 and H3 high P–7‡ P–6‡ P–6‡ P–5‡ P–4‡ ns 9 tr(H) Rise time, H1 and H3 4 3 3 3 3 ns 10 td(HL-HH) Delay time. from H1 low to H3 high or from H3 low to H1 high 0 5 0 4 0 4 0 4 0 3 ns 11 tc(H) Cycle time, H1 and H3 60 606 50 606 40 606 33.3 606 25 606 ns † Specified by design but not tested ‡ P = tc(CI) 1 4 X2/CLKIN 3 5 2 Figure 10. Timing for X2/CLKIN |
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