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74ABT244D
INTEGRATED CIRCUITS 74ABT244 Octal buffer/line driver (3-State) Product specification Supersedes data of 1995 Sep 06 IC23 Data Handbook Philips Semiconductors 1998 Jan 16 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74ABT244 LOGIC SYMBOL LOGIC SYMBOL (IEEE/IEC) 2 1A0 1Y0 4 1A1 1Y1 1A2 1Y2 18 1 EN 6 8 16 1 1OE 2A3 2Y3 2A2 2Y2 15 2A1 2Y1 17 2A0 2Y0 11 13 9 16 6 12 18 4 14 8 1Y3 1A3 2 14 12 19 EN 7 9 13 19 11 7 5 3 15 5 17 2OE 3 SA00149 SA00150 FUNCTION TABLE INPUTS OUTPUTS 1OE 2OE 2An 1Yn 2Yn L L L L L L L H L H H H H H L X Z 1An X H X Z Z = = = = High voltage level Low voltage level Don’t care High impedance “off ” state ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL VCC IIK PARAMETER CONDITIONS RATING UNIT –0.5 to +7.0 V –18 mA –1.2 to +7.0 V VO < 0 –50 mA output in Off or High state –0.5 to +5.5 V output in Low state 128 mA –65 to 150 °C DC supply voltage DC input diode current VI < 0 voltage3 VI DC input IOK DC output diode current voltage3 VOUT DC output IOUT DC output current Tstg Storage temperature range 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. 1998 Jan 16 3
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