GENERAL DESCRIPTION
FEATURES
s 2-Way asynchronous data bus communication s Input clamp diodes limit high-speed termination effects Ordering Code: Order Code 74F243SC Package Number M14A Package DESCRIPTION
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol IEEE/IEC Connection Diagram Truth Table Inputs E1 L L H H H = HIGH Voltage Level L = LOW Voltage Level Z = High Impedance N/A = Not Allowed Inputs/Outputs E2 L H L H An Input N/A Z A=B Bn B=A N/A Z Input Unit Loading/Fan Out Pin DESCRIPTION
Names E1 E2 An, Bn Enable Input (Active LOW) Enable Input (Active HIGH) Inputs Outputs 1.0/1.67 1.0/1.67 3.5/2.67 U.L. Input IIH/IIL HIGH/LOW Output IOH/IOL 20 µA/−1 mA 20 µA/−1 mA 70 µA/−1.6 mA 600/106.6 −12 mA/64 mA (80) (48 mA) © 1999 Fairchild Semiconductor Corporation DS009502 74F243 ABSOLUTE MAXIMUM RATINGS
(Note 1) Storage Temperature Ambient Tempera...
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