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PIC16F84AT-20/SSROM Datasheet(PDF) 60 Page - Microchip Technology |
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PIC16F84AT-20/SSROM Datasheet(HTML) 60 Page - Microchip Technology |
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60 / 88 page  PIC16F84A DS35007B-page 58 © 2001 Microchip Technology Inc. FIGURE 9-7: CLKOUT AND I/O TIMING TABLE 9-3: 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 Note: All tests must be done with specified capacitive loads (Figure 9-5) 50 pF on I/O pins and CLKOUT. Param No. Sym Characteristic Min Typ† Max Units Conditions 10 TosH2ckL OSC1 ↑ to CLKOUT↓ Standard —15 30 ns (Note 1) 10A Extended (LF) — 15 120 ns (Note 1) 11 TosH2ckH OSC1 ↑ to CLKOUT↑ Standard — 15 30 ns (Note 1) 11A Extended (LF) — 15 120 ns (Note 1) 12 TckR CLKOUT rise time Standard — 15 30 ns (Note 1) 12A Extended (LF) — 15 100 ns (Note 1) 13 TckF CLKOUT fall time Standard — 15 30 ns (Note 1) 13A Extended (LF) — 15 100 ns (Note 1) 14 TckL2ioV CLKOUT ↓ to Port out valid — — 0.5TCY +20 ns (Note 1) 15 TioV2ckH Port in valid before CLKOUT ↑ Standard 0.30TCY + 30 — — ns (Note 1) Extended (LF) 0.30TCY + 80 — — ns (Note 1) 16 TckH2ioI Port in hold after CLKOUT ↑ 0— — ns (Note 1) 17 TosH2ioV OSC1 ↑ (Q1 cycle) to Port out valid Standard — — 125 ns Extended (LF) — — 250 ns 18 TosH2ioI OSC1 ↑ (Q2 cycle) to Port input invalid (I/O in hold time) Standard 10 — — ns Extended (LF) 10 — — ns 19 TioV2osH Port input valid to OSC1 ↑ (I/O in setup time) Standard -75 — — ns Extended (LF) -175 — — ns 20 TioR Port output rise time Standard — 10 35 ns 20A Extended (LF) — 10 70 ns 21 TioF Port output fall time Standard — 10 35 ns 21A Extended (LF) — 10 70 ns 22 TINP INT pin high or low time Standard 20 — — ns 22A Extended (LF) 55 — — ns 23 TRBP RB7:RB4 change INT high or low time Standard TOSC§— — ns 23A Extended (LF) TOSC§— — ns † Data in "Typ" column is at 5.0V, 25 °C unless otherwise stated. These parameters are for design guidance only and are not tested. § By design. Note 1: Measurements are taken in RC mode where CLKOUT output is 4 x TOSC. |
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