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MC145404DW Datasheet(PDF) 3 Page - Motorola, Inc |
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MC145404DW Datasheet(HTML) 3 Page - Motorola, Inc |
3 / 9 page MC145403 •MC145404•MC145405•MC145408 MOTOROLA 3 ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND, except where noted) Rating Symbol Value Unit DC Supply Voltage (VDD ≥ VCC) VDD VSS VCC – 0.5 to + 13.5 + 0.5 to – 13.5 – 0.5 to + 6.0 V Input Voltage Range Rx1 – Rx n DI1 – DI n VIR VSS – 15 to VDD + 15 0.5 to VCC + 15 V DC Current Drain per Pin I ± 00 mA Power Dissipation PD 1 W Operating Temperature Range TA – 40 to + 85 °C Storage Temperature Range Tstg – 85 to + 150 °C DC ELECTRICAL CHARACTERISTICS (All polarities referenced to GND = 0 V, TA = – 40 to + 85°C) Parameter Symbol Min Typ Max Unit DC Supply Voltage VDD VSS VCC 4.5 – 4.5 4.5 5 to 12 – 5 to – 12 5 13.2 – 13.2 5.5 V Quiescent Supply Current (Outputs Unloaded, Inputs Low) VDD = + 12 V VSS = – 12 V VCC = + 5 V IDD ISS ICC — — — 425 – 400 110 635 – 600 200 µA RECEIVER ELECTRICAL SPECIFICATIONS (Voltage polarities referenced to GND = 0 V, VDD = + 12 V, VSS = – 12 V, TA = – 40 to + 85°C, VCC = + 5 V, ± 10%) Characteristic Symbol Min Typ Max Unit Input Turn–On Threshold Rx1 – Rx n VDO = VOL Von 1.35 1.8 2.35 V Input Turn–Off Threshold Rx1 – Rx n VDO = VOH Voff 0.75 1 1.25 V Input Threshold Hysteresis ∆ = Von – Voff Vhys 0.6 0.8 — V Input Resistance (VSS – 15 V) ≤ V Rx1 – Rxn ≤ (VDD + 15 V) Rin 3 5.4 7 k Ω High Level Output Voltage Iout = – 20 µA VRx = – 3 to – 25 V* (DO1 – DOn)Iout = – 1.0 mA VOH 4.9 3.8 4.9 4.3 — — V Low Level Output Voltage Iout = + 2 mA VRx = + 3 to + 25 V* (DO1 – DOn)Iout = + 4 mA VOL — — 0.02 0.5 0.5 0.7 V * This is the range of input voltages as specified by EIA–232–E to cause a receiver to be in the high or low. This device contains circuitry to protect the inputs and outputs against damage due to high static voltages or electric fields; however, it is advised that normal precautions be taken to avoid applications of any voltage higher than maximum rated voltages to this high imped- ance circuit. For proper operation it is recommended that Vout and Vin be constrained to the ranges described as follows: Digital I/O: Driver Inputs (DI): (GND ≤ VDI ≤ VCC). Receiver Outputs (DO): (GND ≤ VDO ≤ VCC). EIA–232 I/O: Driver Outputs (Tx): (VSS ≤ VTx1 – Txn ≤ VDD). Receiver Inputs (Rx): VSS – 15 V ≤ VRx1 – Rxn ≤ VDD + 15 V). Reliability of operation is enhanced if unused outputs are tied off to an appropriate logic voltage level (e.g., either GND or VCC for DI, and GND for Rx). |
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