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PIC16F676-E/P bảng dữ liệu(PDF) 98 Page - Microchip Technology |
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PIC16F676-E/P bảng dữ liệu(HTML) 98 Page - Microchip Technology |
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98 / 130 page ![]() PIC16F630/676 DS40039E-page 96 © 2007 Microchip Technology Inc. FIGURE 12-6: CLKOUT AND I/O TIMING TABLE 12-3: CLKOUT AND I/O TIMING REQUIREMENTS OSC1 CLKOUT I/O pin (Input) I/O pin (Output) Q4 Q1 Q2 Q3 10 13 14 17 20, 21 22 23 19 18 15 11 12 16 Old Value New Value Param No. Sym Characteristic Min Typ† Max Units Conditions 10 TosH2ckL OSC1 ↑ to CLOUT↓ — 75 200 ns (Note 1) 11 TosH2ckH OSC1 ↑ to CLOUT↑ — 75 200 ns (Note 1) 12 TckR CLKOUT rise time — 35 100 ns (Note 1) 13 TckF CLKOUT fall time — 35 100 ns (Note 1) 14 TckL2ioV CLKOUT ↓ to Port out valid — — 20 ns (Note 1) 15 TioV2ckH Port in valid before CLKOUT ↑ TOSC + 200 ns — — ns (Note 1) 16 TckH2ioI Port in hold after CLKOUT ↑ 0 — — ns (Note 1) 17 TosH2ioV OSC1 ↑ (Q1 cycle) to Port out valid — 50 150 * ns — — 300 ns 18 TosH2ioI OSC1 ↑ (Q2 cycle) to Port input invalid (I/O in hold time) 100 — — ns 19 TioV2osH Port input valid to OSC1 ↑ (I/O in setup time) 0— — ns 20 TioR Port output rise time — 10 40 ns 21 TioF Port output fall time — 10 40 ns 22 Tinp INT pin high or low time 25 — — ns 23 Trbp PORTA change INT high or low time TCY —— ns * These parameters are characterized but not tested. † Data in ‘Typ’ column is at 5.0V, 25 °C unless otherwise stated. Note 1: Measurements are taken in RC mode where CLKOUT output is 4xTOSC. |
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