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CD74AC257M Scheda tecnica(PDF) 7 Page - Texas Instruments |
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CD74AC257M Scheda tecnica(HTML) 7 Page - Texas Instruments |
7 / 17 page 7 FIGURE 2. INPUTS OR SELECT TO OUTPUT PROPAGATION DELAYS (AC/ACT257) FIGURE 3. SELECT TO OUTPUT PROPAGATION DELAYS (CD74ACT258) 90% 10% tf = 3ns tr = 3ns nI0, nI1, S tPLH tPHL VS Y INPUT LEVEL GND VS INPUT LEVEL VS S tPLH tPHL VS Y DUT OUTPUT RL (NOTE) OUTPUT LOAD 500 Ω CL 50pF NOTE: For AC Series Only: When VCC = 1.5V, RL = 1kΩ. FIGURE 4. PROPAGATION DELAY TIMES AC ACT Input Level VCC 3V Input Switching Voltage, VS 0.5 VCC 1.5V Output Switching Voltage, VS 0.5 VCC 0.5 VCC CD54/74AC257, CD54/74ACT257, CD74ACT258 |
Codice articolo simile - CD74AC257M |
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Descrizione simile - CD74AC257M |
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