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74ALS645A-1N 데이터시트(PDF) 3 Page - NXP Semiconductors |
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74ALS645A-1N 데이터시트(HTML) 3 Page - NXP Semiconductors |
3 / 8 page Philips Semiconductors Product specification 74ALS645A/74ALS645A-1 Octal transceiver (3-State) 1991 Jun 03 3 LOGIC DIAGRAM SF00201 18 B0 17 B1 16 B2 15 B3 14 B4 13 B5 12 B6 11 B7 A0 A1 A2 A3 A4 A5 A6 A7 23 4567 89 19 1 OE T/R VCC = Pin 20 GND = Pin 10 FUNCTION TABLE INPUTS OUTPUTS OE T/R OUTPUTS L L Bus B data to Bus A L H Bus A data to Bus B H X Z H = High voltage level L = Low voltage level X = Don’t care Z = High impedance “off” state 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.) 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 VCC V I Current applied to output in Low output state All versions 48 mA IOUT Current applied to output in Low output state -1 version 96 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 IOH High-level output current –15 mA IO Low level output current All versions 24 mA IOL Low-level output current -1 version 48 1 mA Tamb Operating free-air temperature range 0 +70 °C NOTES: 1. The 48mA limit applies only under the condition of VCC = 5.0V ± 5%. |
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