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SN74LS139 Datasheet(PDF) 2 Page - ON Semiconductor |
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SN74LS139 Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 8 page ![]() SN74LS139 http://onsemi.com 2 CONNECTION DIAGRAM DIP (TOP VIEW) Address Inputs Enable (Active LOW) Input Active LOW Outputs A0, A1 E O0 – O3 0.5 U.L. 0.5 U.L. 10 U.L. 0.25 U.L. 0.25 U.L. 5 U.L. NOTES: a) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW. HIGH LOW (Note a) LOADING PIN NAMES NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. 14 13 12 11 10 9 123 45 6 7 16 15 8 VCC Eb GND A0b A1b O0b O1b O2b O3b Ea O0a O1a A0a A1a VCC = PIN 16 GND = PIN 8 O1 12 3 15 14 13 4 5 6 7 12 11 10 9 EA0 A1 DECODER a DECODER b O0 O2 O3 EA0 A1 O2a O3a O1 O0 O2 O3 LOGIC SYMBOL |
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