dm74ls249 National Semiconductor Corporation, dm74ls249 Datasheet
dm74ls249
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dm74ls249 Summary of contents
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... The ’LS249 has active HIGH open-collector outputs and in- corporates the Lamp Test and BI RBO inputs Additionally the ’LS249 will light the top bar (segment a) for numeral 6 and the bottom bar (segment d) for numeral 9 Connection Diagram Dual-In-Line Package Order Number DM74LS249N See NS Package Number N16E Pin Names A – ...
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Absolute Maximum Ratings Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range b Recommended Operating Conditions Symbol Parameter V Supply Voltage CC V High Level Input Voltage IH V Low Level Input Voltage IL I High Level ...
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Switching Characteristics Symbol Parameter t Propagation Delay Time PLH – g (54LS R PHL n t Propagation Delay Time PLH ...
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Logic Diagram 10213 – 4 ...
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... Italiano National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Order Number DM74LS249N NS Package Number N16E 2 A critical component is any component of a life ...