SN74LS74 ON Semiconductor, SN74LS74 Datasheet
SN74LS74
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SN74LS74 Summary of contents
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... SN74LS74A Dual D-Type Positive Edge-Triggered Flip-Flop The SN74LS74A dual edge-triggered flip-flop utilizes Schottky TTL circuitry to produce high speed D-type flip-flops. Each flip-flop has individual clear and set inputs, and also complementary Q and Q outputs. Information at input D is transferred to the Q output on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level of the clock pulse and is not directly related to the transition time of the positive-going pulse ...
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... SN74LS74A LOGIC DIAGRAM (Each Flip-Flop) SET ( (10) CLEAR (CD) 1 (13) CLOCK 3 (11 (12) LOGIC SYMBOL PIN 14 CC GND = PIN 7 http://onsemi.com ( ( ...
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... Clock Clear Set to Output t PHL AC SETUP REQUIREMENTS ( Symbol Parameter t Clock W (H) t Clear, Set W (L) Data Setup Time — HIGH Data Setup Time — LOW t Hold Time h SN74LS74A Limits Min Typ Max Unit 2.0 V 0.8 V – 0.65 – 1.5 V 2.7 3.5 V 0.25 0.4 V 0.35 0 ...
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... SN74LS74A AC WAVEFORMS 1 h(L) t s(L) t W(H) 1 MAX t PHL Q 1 PLH 1 *The shaded areas indicate when the input is permitted to change for predictable output performance. Figure 1. Clock to Output Delays, Data Set-Up and Hold Times, Clock Pulse Width t W SET 1.3 V 1.3 V CLEAR t PLH 1 ...
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... –T– SEATING PLANE 0.13 (0.005) SN74LS74A PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 646–06 ISSUE M NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN B FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. ...
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... –T– K SEATING PLANE 0.25 (0.010 SN74LS74A PACKAGE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751A–03 ISSUE 0.25 (0.010 http://onsemi.com 6 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14 ...
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... Notes SN74LS74A http://onsemi.com 7 ...
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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 SN74LS74A/D ...