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74AS38N
DM5438 DM7438 Quad 2-Input NAND Buffers with Open-Collector Outputs General Description Pull-Up Resistor Equations This device contains four independent gates each of which performs the logic NAND function The open-collector outputs require external pull-up resistors for proper logical operation RMAX e VCC (Min) b VOH N1 (IOH) a N2 (IIH) VCC (Max) b VOL RMIN e IOL b N3 (IIL) Where N1 (IOH) e total maximum output high current for all outputs tied to pull-up resistor N2 (IIH) e total maximum input high current for all inputs tied to pull-up resistor N3 (IIL) e total maximum input low current for all inputs tied to pull-up resistor Connection Diagram Dual-In-Line Package TL F 6513 – 1 Order Number DM5438J DM5438W DM7438M or DM7438N See NS Package Number J14A M14A N14A or W14B Function Table Y e AB Inputs Output A B Y L L H H L H L H H H H L H e High Logic Level L e Low Logic Level C1995 National Semiconductor Corporation TL F 6513 RRD-B30M105 Printed in U S A DM5438 DM7438 Quad 2-Input NAND Buffers with Open-Collector Outputs June 1989
TI
Texas Instruments Incorporated
U.S.A
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