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74ALS240AD
INTEGRATED CIRCUITS 74ALS240A/74ALS240A–1 Octal inverter buffer (3–State) Product specification IC05 Data Handbook Philips Semiconductors 1991 Feb 08 Philips Semiconductors Product specification 74ALS240A/ 74ALS240A-1 Octal inverter buffer (3-State) LOGIC DIAGRAM Ia0 2 FUNCTION TABLE 18 Ya0 Ib0 Ya1 Ib1 17 INPUTS 3 Yb0 OUTPUTS Ia2 Ia3 OEa 4 16 6 14 8 12 Ib2 Ya2 Ib3 Ya3 1 OEb 15 5 13 7 11 OEb Ib Ya Yb L L L L H H H L H L L X H X Z Z Yb1 H Yb2 9 H L X Z Yb3 10 VCC = Pin 20 GND = Pin 10 Ia L Ia1 OEa = = = = High voltage level Low voltage level Don’t care High impedance “off” state SF00323 ABSOLUTE MAXIMUM RATINGS (Operation beyond the limit 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.) RATING UNIT VCC Supply voltage PARAMETER –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5 mA SYMBOL VOUT Voltage applied to output in High output state Tamb 96 mA 0 to +70 °C °C Operating free-air temperature range Tstg mA -1 version Current applied to output in Low output state V 48 –65 to +150 IO OUT –0.5 to VCC All versions Storage temperature range RECOMMENDED OPERATING CONDITIONS LIMITS PARAMETER SYMBOL MIN NOM MAX 5.0 5.5 UNIT VCC Supply voltage 4.5 VIH High-level input voltage 2.0 VIL Low-level input voltage 0.8 V IIK Input clamp current –18 mA IOH High-level output current –15 mA 24 mA All versions IO OL Tamb Low-level Low level output current -1 version Operating free-air temperature range NOTE: 1. The 48mA limit applies only under the condition of VCC = 5.0V ±5%. 1991 Feb 08 3 V 1 mA +70 °C 48 0 V
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