전자부품 데이터시트 검색엔진 |
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74F2953 데이터시트(PDF) 6 Page - NXP Semiconductors |
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74F2953 데이터시트(HTML) 6 Page - NXP Semiconductors |
6 / 14 page Philips Semiconductors Product specification 74F2952, 74F2953 Transceivers 1989 Sep 22 6 FUNCTION TABLE for Register An or Bn INPUTS INTERNAL OPERATING An or Bn CPXX CEXX Q MODE X X H NC Hold data L ↑ L L Load data H ↑ L H Load data H = High voltage level L = Low voltage level ↑ = Low-to-High transition X = Don’t Care XX = AB or BA NC= No Change FUNCTION TABLE for Output Enable INPUTS INTERNAL An or Bn OUTPUTS OPERATING OEXX Q 74F2952 74F2953 MODE H X Z Z Disable outputs L L L H Enable outputs L H H L Enable outputs H = High voltage level L = Low voltage level X = Don’t Care XX = AB or BA Z = High impedance “off” state ABSOLUTE MAXIMUM RATINGS (Operation beyond the limits set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) SYMBOL PARAMETER RATING UNIT VCC Supply voltage –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5 mA VOUT Voltage applied to output in High output state –0.5 to +5.5 V I Current applied to output in Low output state A0 – A7 48 mA IOUT Current applied to output in Low output state B0 – B7 128 mA Tamb Operating free-air temperature range 0 to +70 °C Tstg Storage temperature range –65 to +150 °C RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER LIMITS UNIT SYMBOL PARAMETER MIN NOM MAX UNIT VCC Supply voltage 4.5 5.0 5.5 V VIH High-level input voltage 2.0 V VIL Low-level input voltage 0.8 V IIK Input clamp current –18 mA IO High level output current A0 – A7 –3 mA IOH High-level output current B0 – B7 –15 mA I Low level output current A0 – A7 24 mA IOL Low-level output current B0 – B7 64 mA Tamb Operating free-air temperature range 0 +70 °C |
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