công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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MC145010P bảng dữ liệu(PDF) 4 Page - Freescale Semiconductor, Inc |
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MC145010P bảng dữ liệu(HTML) 4 Page - Freescale Semiconductor, Inc |
4 / 12 page Sensors 4 Freescale Semiconductor MC145010 Table 3. AC Electrical Characteristics Reference Timing Diagram Figure 6 and Figure 7. (TA = 25°C, VDD = 9.0 V, Component values from Figure 8: R1 = 100.0 KΩ, C3 = 1500.0 pF, R2 = 10.0 M Ω.) No. Characteristics Symbol Clocks Min Max Unit 1 Oscillator Period(1) Free-Running Sawtooth Measured at Pin 12 1. Oscillator Period T (= Tr + Tf) is determined by the external components R1, R2, and C3 where Tr = (0.6931) R2 x C3 and Tf = (0.6031) R1 x C3. The other timing characteristics are some multiple of the oscillator timing shown in the table. 1/fOSC 1 9.5 11.5 ms 2 3 4 LED Pulse Period No Local Smoke, and No Remote Smoke Remote Smoke, but No Local Smoke Local Smoke or Push Button Test tLED 4096 — 64 38.9 — 0.60 47.1 — 0.74 s 5 LED Pulse Width and Strobe Pulse Width tw(LED), tw(STB) 1 9.5 11.5 ms 6 7 8 IRED Pulse Period Smoke Test Chamber Sensitivity Test without Local Smoke Push Button Test tIRED 1024 4096 32 9.67 38.9 0.302 11.83 47.1 0.370 s 9 IRED Pulse Width tw(IRED) Tf1 94 116 µs 10 IRED Rise Time IRED Fall Time tr tf — — — — 30 200 µs 11 Silver and Brass Modulation Period Local or Remote Smoke tMOD — 297 363 ms 11 12 Silver and Brass Duty Cycle Local or Remote Smoke tON/tMOD — 73 77 % 13 Silver and Brass Chirp Pulse Period Low Supply or Degraded Chamber Sensitivity tCH 4096 38.9 47.1 s 14 Silver and Brass Chirp Pulse Width Low Supply or Degraded Chamber Sensitivity tw(CH) 1 9.5 11.5 ms 15 Rising Edge on I/O to Smoke Alarm Response Time Remote Smoke, No Local Smoke tRR — — 800 ms 16 17 18 19 Strobe Out Pulse Period Smoke Test Chamber Sensitivity Test without Local Smoke Low Supply Test without Local Smoke Push Button Test tSTB 1024 4096 4096 — 9.67 38.9 38.9 0.302 11.83 47.1 47.1 0.370 s |
Số phần tương tự - MC145010P |
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Mô tả tương tự - MC145010P |
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