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SC41344P 数据表(PDF) 15 Page - Freescale Semiconductor, Inc |
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SC41344P 数据表(HTML) 15 Page - Freescale Semiconductor, Inc |
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15 / 20 page  MC145026 •MC145027•MC145028•SC41343•SC41344 MOTOROLA 15 VDD TE 5 TRINARY ADDRESSES 4–BIT BINARY DATA A1 A2 A3 A4 A5 D6 D7 D8 D9 1 2 3 4 5 6 7 9 10 14 16 15 Dout 0.1 µF MC145026 8 12 11 RTC RS VDD 13 CTC REPEAT OF ABOVE MC145027 OR SC41343 VDD 0.1 µF 16 Din 9 6 7 10 R2 C2 R1 C1 1 2 3 4 5 15 14 13 12 11 D6 D7 D8 D9 VT VDD 5 TRINARY ADDRESSES A1 A2 A3 A4 A5 Figure 17. Typical Application CTC′ = CTC + Clayout + 12 pF 100 pF ≤ CTC ≤ 15 µF RTC ≥ 10 kΩ; RS ≈ 2 RTC R1 ≥ 10 kΩ C1 ≥ 400 pF R2 ≥ 100 kΩ C2 ≥ 700 pF fosc = 1 2.3 RTCCTC′ R1C1 = 3.95 RTCCTC R2C2 = 77 RTCCTC Example R/C Values (All Resistors and Capacitors are ± 5%) (CTC′ = CTC + 20 pF) fosc (kHz) RTC CTC ′ RS R1 C1 R2 C2 362 181 88.7 42.6 21.5 8.53 1.71 10 k 10 k 10 k 10 k 10 k 10 k 50 k 20 k 20 k 20 k 20 k 20 k 20 k 100 k 120 pF 240 pF 490 pF 1020 pF 2020 pF 5100 pF 5100 pF 10 k 10 k 10 k 10 k 10 k 10 k 50 k 100 k 100 k 100 k 100 k 100 k 200 k 200 k 8 910 pF 1800 pF 3900 pF 7500 pF 0.015 µF 0.02 µF 0.1 µF 470 pF 910 pF 2000 pF 3900 pF 8200 pF 0.02 µF 0.02 µF REPEAT OF ABOVE |
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