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74LVT640DB 데이터시트(PDF) 3 Page - NXP Semiconductors |
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3 / 10 page Philips Semiconductors Product specification 74LVT640 3.3V Octal transceiver with direction pin; inverting (3-State) 1998 Feb 19 3 LOGIC SYMBOL DIR SV00171 OE B0 B1 B2 B3 B4 B5 B6 B7 A0 A1 A2 A3 A4 A5 A6 A7 1 2 3 4 5 6 7 8 9 19 18 17 16 15 14 13 12 11 FUNCTION TABLE INPUTS INPUTS/OUTPUTS OEn DIR An Bn L L Bn Inputs L H Inputs An H X Z Z H = High voltage level L = Low voltage level X = Don’t care Z = High impedance “Off” state LOGIC SYMBOL (IEEE/IEC) 2 3 4 5 6 7 8 9 G3 3 EN1 (BA) 3 EN2 (AB) 1 2 18 17 16 15 14 13 12 11 19 1 SV00172 ABSOLUTE MAXIMUM RATINGS1,2 SYMBOL PARAMETER CONDITIONS RATING UNIT VCC DC supply voltage –0.5 to +4.6 V IIK DC input diode current VI < 0 –50 mA VI DC input voltage3 –0.5 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 +7.0 V IO DC output current Output in Low state 128 mA IOUT DC output current Output in High state –64 mA Tstg Storage temperature range –65 to +150 °C 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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. |
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