74LS247 ON Semiconductor, 74LS247 Datasheet
74LS247
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74LS247 Summary of contents
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... SN74LS247 BCD-to-Seven-Segment Decoders/Drivers The SN74LS247 is a BCD-to-Seven-Segment Decoder/Drivers. The LS247 composes the and with the tails. The LS247 has active-low outputs for direct drive of indicators. The LS247 features a lamp test input and have full ripple-blanking input/output controls. An automatic leading and/or trailing-edge ...
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... BI RBORBI LAMP RB TEST OUT PUT INPUTS CIRCUIT FEATURES LAMP INTENSITY MODULATION CAPABILITY DRIVER OUTPUTS TYPE ACTIVE OUTPUT LEVEL CONFIGURATION SN74LS247 low open-collector http://onsemi.com ...
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... SN74LS247 LOGIC DIAGRAM LS247 (7) INPUT A (1) INPUT B (2) INPUT C (6) INPUT D BI/RBO BLANKING (4) INPUT OR RIPPLE-BLANKING OUTPUT (3) LAMP TEST INPUT RBI (5) RIPPLE-BLANKING INPUT http://onsemi.com 3 (13) OUTPUT a (12) OUTPUT b (11) OUTPUT c (10) OUTPUT d (9) OUTPUT e (15) OUTPUT f (14) OUTPUT g ...
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... When the blanking input/ripple blanking output (BI/RBO) is open or held high and a low is applied to the lamp-test input, all segment outputs are on. BI/RBO is wire-AND logic serving as blanking input (BI) and/or ripple-blanking output (RBO). SN74LS247 LS247 FUNCTION TABLE ...
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... Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS ( Symbol Parameter t Turn-Off Time from A Input PLH t Turn-On Time from A Input PHL t Turn-Off Time from RBI Input PHL t Turn-On Time from RBI Input PLH SN74LS247 (unless otherwise specified) Limits Min Typ Max Unit 2.0 V 0.8 V – 0.65 – 1.5 V 2.4 4.2 V 0.25 0.4 V ...
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... SEATING –T– PLANE 0.25 (0.010 SN74LS247 N SUFFIX PLASTIC PACKAGE CASE 648–08 ISSUE R NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. ...
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... G K –T– SEATING PLANE 0.25 (0.010 SN74LS247 D SUFFIX PLASTIC SOIC PACKAGE CASE 751B–05 ISSUE 0.25 (0.010 http://onsemi.com 7 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14 ...
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... Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–8549 Phone: 81–3–5487–8345 Email: r14153@onsemi.com Fax Response Line: 303–675–2167 800–344–3810 Toll Free USA/Canada ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 8 SN74LS247/D ...