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74HCT1284PW Arkusz danych(PDF) 3 Page - NXP Semiconductors |
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74HCT1284PW Arkusz danych(HTML) 3 Page - NXP Semiconductors |
3 / 12 page Philips Semiconductors Product specification 74HCT1284 Parallel printer interface transceiver/buffer 1998 Jul 10 3 LOGIC SYMBOL DIR HD Y7 A7 AY Y6 A6 AY Y5 A5 AY B4 A4 AB AB B2 A2 AB AB B3 A3 B1 A1 SK00009 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 VCC DC supply voltage –0.5 to +6.5 V IIK DC input diode current VI < 0 ±20 mA VI DC input voltage3 –2 to +7.0 V IOK DC output diode current VO < 0 ±50 mA VOUT DC output voltage3 Output in Off or High state –0.5 to +5.5 V IOUT DC output current Output in Low state ±50 mA Tstg Storage temperature range –65 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. RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER LIMITS UNIT SYMBOL PARAMETER MIN MAX UNIT VCC DC supply voltage 4.7 5.5 V VI Input voltage 0 VCC V VIH High-level input voltage 2.0 V VIL Low-level Input voltage 0.8 V IOH High-level output current –14 mA IOL Low-level output current 14 mA Tamb Operating free-air temperature range 0 +70 °C |
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