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CY74FCT2543CTSOCE4 Datasheet(PDF) 5 Page - Texas Instruments |
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CY74FCT2543CTSOCE4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 14 page CY74FCT2543T 8-BIT LATCHED TRANSCEIVER WITH 3-STATE OUTPUTS SCCS042C – SEPTEMBER 1994 – REVISED NOVEMBER 2001 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) PARAMETER CY74FCT2543T CY74FCT2543AT CY74FCT2543CT UNIT PARAMETER MIN MAX MIN MAX MIN MAX UNIT tw Pulse duration, LEBA or LEAB low 5 5 5 ns tsu Setup time, high or low A or B before LEBA ↓ or LEAB↓ 2 2 2 ns th Hold time, high or low A or B after LEBA ↓ or LEAB↓ 2 2 2 ns switching characteristics over operating free-air temperature range (see Figure 1) PARAMETER FROM TO CY74FCT2543T CY74FCT2543AT CY74FCT2543CT UNIT PARAMETER (INPUT) (OUTPUT) MIN MAX MIN MAX MIN MAX UNIT tPLH AorB BorA 25 85 25 65 25 55 ns tPHL A or B B or A 2.5 8.5 2.5 6.5 2.5 5.5 ns tPLH LEBA or LEAB AorB 25 12 5 25 8 25 7 ns tPHL LEBA or LEAB A or B 2.5 12.5 2.5 8 2.5 7 ns tPZH OEBA or OEAB AorB 2 12 2 9 2 8 ns tPZL OEBA or OEAB A or B 2 12 2 9 2 8 ns tPZH CEBA CEAB AorB 2 12 2 9 2 8 ns tPZL CEBA or CEAB A or B 2 12 2 9 2 8 ns tPHZ OEBA or OEAB AorB 2 9 2 7.5 2 6.5 ns tPLZ OEBA or OEAB A or B 2 9 2 7.5 2 6.5 ns tPHZ CEBA or CEAB AorB 2 9 2 7.5 2 6.5 ns tPLZ CEBA or CEAB A or B 2 9 2 7.5 2 6.5 ns |
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