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SN74HCT157DT 数据表(PDF) 4 Page - Texas Instruments |
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SN74HCT157DT 数据表(HTML) 4 Page - Texas Instruments |
4 / 13 page SN54HCT157, SN74HCT157 QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS SCLS071D − NOVEMBER 1988 − REVISED OCTOBER 2003 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM TO VCC TA = 25°C SN54HCT157 SN74HCT157 UNIT PARAMETER FROM (INPUT) TO (OUTPUT) VCC MIN TYP MAX MIN MAX MIN MAX UNIT A or B Y 4.5 V 18 28 42 35 A or B Y 5.5 V 15 25 38 32 tpd A/B Y 4.5 V 20 32 48 40 ns tpd A/B Y 5.5 V 17 29 43 36 ns G Y 4.5 V 18 26 39 33 G Y 5.5 V 15 23 35 30 tt Any 4.5 V 8 15 22 19 ns tt Any 5.5 V 7 14 21 17 ns switching characteristics over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM TO VCC TA = 25°C SN54HCT157 SN74HCT157 UNIT PARAMETER FROM (INPUT) TO (OUTPUT) VCC MIN TYP MAX MIN MAX MIN MAX UNIT A or B Y 4.5 V 23 42 63 52 A or B Y 5.5 V 19 38 52 46 tpd A/B Y 4.5 V 24 46 72 58 ns tpd A/B Y 5.5 V 21 41 61 52 ns G Y 4.5 V 21 39 58 48 G Y 5.5 V 19 35 49 43 tt Any 4.5 V 17 42 63 53 ns tt Any 5.5 V 14 38 57 48 ns operating characteristics, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT Cpd Power dissipation capacitance No load 12 pF 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. |
类似零件编号 - SN74HCT157DT |
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类似说明 - SN74HCT157DT |
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