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MC14499DW bảng dữ liệu(PDF) 2 Page - Motorola, Inc |
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MC14499DW bảng dữ liệu(HTML) 2 Page - Motorola, Inc |
2 / 8 page MC14499 MOTOROLA 2 MAXIMUM RATINGS* (Voltages referenced to VSS) Rating Symbol Value Unit DC Supply Voltage VDD – 0.5 to + 7 V Input Voltage, All Inputs Vin – 0.5 to VDD + 0.5 V Storage Temperature Range Tstg – 65 to + 150 °C * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the limits in the Electrical Characteristics table or Circuit Operation section. ELECTRICAL CHARACTERISTICS (VDD = 4.5 to 6.5 V) Characteristic Symbol 0 °C 25 °C 70 °C Unit Characteristic Symbol Min Max Min Max Min Max Unit Serial Port Input Voltage ‘0’ Level ‘1’ Level VIL VIH — 0.7 x VDD 0.3 x VDD — — 0.7 x VDD 0.3 x VDD — — 0.7 x VDD 0.3 x VDD — V Serial Port Input Current (Vin = 0 to VDD) Iin — ± 0.1 — ± 0.1 — ± 1.0 µA Oscillator Input Voltage ‘0’ Level ‘1’ Level VIL VIH — 0.75 x VDD 0.25 x VDD — — 0.75 x VDD 0.25 x VDD — — 0.8 x VDD 0.2 x VDD — V Oscillator Input Current VOSC = 0 VOSC = VDD IIL IIH — — 100 – 100 30 – 30 80 – 80 10 – 10 — — µA Segment Driver Voltage Below VDD Iout = 50 mA Iout = 10 mA ∆VOH — — 1.1 0.8 — — 1.0 0.75 — — 1.1 0.8 V Segment Driver Off Leakage Vout = 0 IOZ — 100 — 50 — 100 µA Digit Drivers Source (On) Vout = 0.8 V Sink (Off) Vout = 0.5 V IOH IOL 6 – 0.2 — — 5.5 – 0.2 — — 4 – 0.1 — — mA Supply Current Vin = 0, Iout = 0, COSC = 0.015 µF IDD — 1 — 1 — 1 mA Maximum Power Dissipation PD — 500 — 500 — 500 mW SWITCHING CHARACTERISTICS (VDD = 5 V ± 10%, TA = 0 to 70°C) Characteristic Figure No. Symbol Min Max Unit Clock High Time 2 tCH 2 — µs Clock Low Time 2 tCL 2 — µs Clock Rise Time 2 tCR — 2 µs Clock Fall Time 2 tCF — 2 µs Enable Lead Time 2 tE LEAD 200 — ns Enable Lag Time 2 tE LAG 200 — ns Data Set–Up Time 2 tD SUP 200 — ns Data Hold Time 2 tD HOLD 1 — µs Scanner Frequency* 4 1/tSCAN 50 300 Hz OSC/Digit Lead Time 4 tOD — 10 µs OSC/Segment Lead Time 4 tOS — 10 µs Digit Overlap 4 tOV — 5 µs * Scanner Capacitance = 0.022 µF. This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields; however, it is ad- vised that normal precautions be taken to avoid application of any voltage higher than maxi- mum rated voltages to this high impedance circuit. For proper operation, it is recom- mended that Vin and Vout be constrained to the range VSS ≤ (Vin or Vout) ≤VDD. |
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Mô tả tương tự - MC14499DW |
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