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SN54LVT2952 Datasheet(PDF) 6 Page - Texas Instruments |
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SN54LVT2952 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 11 page SN54LVT2952, SN74LVT2952 3.3V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3STATE OUTPUTS SCBS152E − MAY 1992 − REVISED JULY 1995 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 timing requirement over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) SN54LVT2952 SN74LVT2952 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 fclock Clock frequency 150 150 MHz tw Pulse duration CLK high 3.3 3.3 ns tw Pulse duration CLK low 3.3 3.3 ns Setup time, A or B before CLK ↑ Data high 2.6 2.9 2.5 2.8 tsu Setup time, A or B before CLK ↑ Data low 2.6 3.1 2.5 3 ns tsu Setup time, CE before CLK ↑ Data high 0.9 0.8 0.9 0.8 ns Setup time, CE before CLK ↑ Data low 2.5 2.7 2.4 2.7 th Hold time, A or B after CLK ↑ 1.5 0.7 1.5 0.7 ns th Hold time, CE after CLK ↑ 2.6 2.6 2.5 2.6 ns switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) SN54LVT2952 SN74LVT2952 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 (INPUT) (OUTPUT) MIN MAX MIN MAX MIN TYP† MAX MIN MAX fmax 150 150 MHz tPLH CLKBA or A or B 1.3 6.4 2.7 7.4 1.3 3.6 6.1 2.7 7.1 ns tPHL CLKBA or CLKAB A or B 1.8 6.1 2.7 7 1.8 3.7 6 2.7 6.9 ns tPZH OEBA or A or B 1 6.3 2.6 7.3 1 3.2 5.6 2.6 6.7 ns tPZL OEBA or OEAB A or B 1.1 6.6 2.9 8.2 1.2 3.2 6.5 2.9 8 ns tPHZ OEBA or A or B 1 7 2.7 7.6 1 4.1 6.3 2.7 6.9 ns tPLZ OEBA or OEAB A or B 1.6 5.8 1.7 6 1.6 3.3 5.1 1.8 5.3 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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