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74LVC1284PW Datasheet(PDF) 3 Page - NXP Semiconductors |
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74LVC1284PW Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 10 page Philips Semiconductors Product specification 74LVC1284 3.3V Parallel printer interface transceiver/buffer 1995 Nov 10 3 PIN DESCRIPTION PIN NUMBER SYMBOL FUNCTION 1,2,3,4 A1 - A4 Data inputs/outputs 20,19,18,17 B1 - B4 IEEE 1284 Std. outputs/inputs 7,8,9 A5 - A7 Data inputs 14,13,12 Y5 - Y7 IEEE 1284 Std. outputs 10 DIR Direction selection 11 HD B/Y–side high drive enable/disable 5,6 GND Ground (0V) 15,16 VCC Positive supply voltage FUNCTION TABLE INPUTS OUTPUTS INPUTS/OUTPUTS DIR HD A5-7 Y5-7 A1-4 B1-4 L L L L A = B Inputs L L H Z A = B Inputs L H L L A = B Inputs L H H H A = B Inputs H L L L Inputs Low Outputs Low H L H Z Inputs High Outputs Z H H L L Inputs B = A H H H H Inputs B = A H = High Voltage L = Low Voltage Z = High Impedance, Off-State ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL PARAMETER CONDITIONS RATING UNIT ESD Immunity, per Mil Std 883C method 3015 "2 kV VCC DC supply voltage –0.5 to +4.6 V IIK DC input diode current VI < 0 "20 mA IOK DC output diode current VO < 0 "50 mA VIN DC input voltage3 –0.5 to +5.5 V VOUT B/YDC DC output voltage on B/Y side3 –0.5 to +5.5 V VOUT B/Y (tr) Transient output voltage on B/Y side4 40ns transient –2 to +7 V VOUT A side DC output voltage on A side –0.5 to VCC +0.5 V IO DC output current Outputs in High or Low state "50 mA Tstg Storage temperature range –60 to +150 °C ICC/IGND Continuous current through VCC or GND "200 mA NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150 °C. 3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 4. VOUT B/Y (tr) guarantees only that this part will not be damaged by reflections in application so long as the voltage levels remain in the specified range. RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER LIMITS UNIT SYMBOL PARAMETER MIN MAX UNIT VCC DC supply voltage 3.0 3.6 V VI Input voltage 0 VCC V VOUT B/Y output voltage –0.5 5.5 V VOUT A side output voltage 0 VCC V IOH B/Y side output current High –14 mA IOL B/Y side output current Low 14 mA Tamb Operating free-air temperature range 0 +70 °C |
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