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SN74LVT543NSR Datasheet(PDF) 6 Page - Texas Instruments |
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SN74LVT543NSR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 13 page SN54LVT543, SN74LVT543 3.3-V ABT OCTAL REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS SCBS137D – MAY 1992 – REVISED JULY 1995 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) SN54LVT543 SN74LVT543 VCC = 3.3 V ± 0.3 V VCC = 2.7 V VCC = 3.3 V ± 0.3 V VCC = 2.7 V UNIT MIN MAX MIN MAX MIN MAX MIN MAX tw Pulse duration, LEAB or LEBA low 3.3 3.3 3.3 3.3 ns A or B before LEAB or Data high 0 0 0 0 t Setup time LEBA ↑ Data low 0.8 1.1 0.8 1.1 ns tsu Setup time A or B before CEAB or Data high 0 0 0 0 ns CEBA ↑ Data low 0.9 1.2 0.9 1.2 th Hold time A or B after LEAB or LEBA ↑ 1.7 1.7 1.7 1.7 ns th Hold time A or B after CEAB or CEBA ↑ 1.8 1.8 1.8 1.8 ns switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) SN54LVT543 SN74LVT543 PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 3.3 V ± 0.3 V VCC = 2.7 V VCC = 3.3 V ± 0.3 V VCC = 2.7 V UNIT MIN MAX MIN MAX MIN TYP† MAX MIN MAX tPLH AorB BorA 1 4.9 5.7 1 2.9 4.7 5.5 ns tPHL A or B B or A 1 4.8 6 1 3.3 4.6 5.8 ns tPLH LE AorB 1 6.1 7.5 1 4 5.9 7.3 ns tPHL LE A or B 1 5.9 7.5 1 4.1 5.7 7.3 ns tPZH OE AorB 1 6 7.8 1 4.1 5.8 7.6 ns tPZL OE A or B 1.1 6.6 8.4 1.1 4.5 6.4 8.2 ns tPHZ OE AorB 2.4 6.7 7.3 2.4 4.8 6.5 7.1 ns tPLZ OE A or B 2 6 6.1 2 4 5.8 5.9 ns tPZH CE AorB 1 6.2 7.8 1 4.2 6 7.6 ns tPZL CE A or B 1.4 6.9 8.5 1.4 4.7 6.7 8.3 ns tPHZ CE AorB 2.3 6.6 7.3 2.3 4.7 6.4 7.1 ns tPLZ CE A or B 2 5.6 5.8 2 3.8 5.4 5.6 ns † All typical values are at VCC = 3.3 V, TA = 25°C. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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