74LS47 Fairchild Semiconductor, 74LS47 Datasheet
74LS47
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74LS47 Summary of contents
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... DM74LS47 BCD to 7-Segment Decoder/Driver with Open-Collector Outputs General Description The DM74LS47 accepts four lines of BCD (8421) input data, generates their complements internally and decodes the data with seven AND/OR gates having open-collector outputs to drive indicator segments directly. Each segment output is guaranteed to sink the ON (LOW) state and withstand 15V in the OFF (HIGH) state with a maxi- mum leakage current of 250 A ...
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... Note 5: When the blanking input/ripple-blanking output (BI/RBO) is OPEN or held at a HIGH level, and a LOW level is applied to lamp test input, all segment outputs LOW level. Functional Description The DM74LS47 decodes the input data in the pattern indi- cated in the Truth Table and the segment identification illustration. If the input data is decimal zero, a LOW signal applied to the RBI blanks the display and causes a multi- digit display ...
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Logic Diagram Numerical Designations—Resultant Displays 3 www.fairchildsemi.com ...
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Absolute Maximum Ratings Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range Recommended Operating Conditions Symbol Parameter V Supply Voltage CC V HIGH Level Input Voltage IH V LOW Level Input Voltage IL I HIGH Level Output ...
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Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow Package Number M16A 5 www.fairchildsemi.com ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...