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SN74LV4040APWRG4 Datasheet(PDF) 5 Page - Texas Instruments |
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SN74LV4040APWRG4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 17 page SN54LV4040A, SN74LV4040A 12BIT ASYNCHRONOUS BINARY COUNTERS SCES226I − APRIL 1999 − REVISED MAY 2005 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range, VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1) TA = 25°C SN54LV4040A SN74LV4040A UNIT MIN MAX MIN MAX MIN MAX UNIT tw Pulse duration CLK high or low 7 7 7 ns tw Pulse duration CLR high 6.5 6.5 6.5 ns tsu Setup time CLR inactive before CLK ↓ 6.5 6.5 6.5 ns timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) TA = 25°C SN54LV4040A SN74LV4040A UNIT MIN MAX MIN MAX MIN MAX UNIT tw Pulse duration CLK high or low 5 5 5 ns tw Pulse duration CLR high 5 5 5 ns tsu Setup time CLR inactive before CLK ↓ 5 5 5 ns timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C SN54LV4040A SN74LV4040A UNIT MIN MAX MIN MAX MIN MAX UNIT tw Pulse duration CLK high or low 5 5 5 ns tw Pulse duration CLR high 5 5 5 ns tsu Setup time CLR inactive before CLK ↓ 5 5 5 ns switching characteristics over recommended operating free-air temperature range, VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO LOAD TA = 25°C SN54LV4040A SN74LV4040A UNIT PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE MIN TYP MAX MIN MAX MIN MAX UNIT fmax CL = 15 pF 50* 115* 40* 40 MHz fmax CL = 50 pF 40 95 35 35 MHz tPLH CLK QA CL = 15 pF 8.7* 19.4* 1* 23* 1 23 ns tPHL CLK QA CL = 15 pF 8.7* 19.4* 1* 23* 1 23 ns tPHL CLR Any Q CL = 15 pF 9.3* 19.9* 1* 24* 1 24 ns tPLH CLK QA CL = 50 pF 10.5 24.1 1 28 1 28 ns tPHL CLK QA CL = 50 pF 10.5 24.1 1 28 1 28 ns tPHL CLR Any Q CL = 50 pF 11.7 24.5 1 28 1 28 ns ∆tpd Qn Qn+1 CL = 50 pF 1.7 5.9 7 7 ns * On products compliant to MIL-PRF-38535, this parameter is not production tested. 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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