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SN74AHCT257N Arkusz danych(PDF) 4 Page - Texas Instruments |
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SN74AHCT257N Arkusz danych(HTML) 4 Page - Texas Instruments |
4 / 7 page SN54AHCT257, SN74AHCT257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SCLS351E – MAY 1996 – REVISED OCTOBER 1998 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54AHCT257 SN74AHCT257 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT V IOH = –50 mA 45 V 4.4 4.5 4.4 4.4 V VOH IOH = –8 mA 4.5 V 3.94 3.8 3.8 V V IOL = 50 mA 45 V 0.1 0.1 0.1 V VOL IOL = 8 mA 4.5 V 0.36 0.44 0.44 V II VI = VCC or GND 5.5 V ±0.1 ±1 ±1 mA ICC VI = VCC or GND, IO = 0 5.5 V 4 40 40 mA ∆ICC† One input at 3.4 V, Other inputs at VCC or GND 5.5 V 1.35 1.5 1.5 mA IOZ VO = VCC or GND 5.5 V ±0.25 ±2.5 ±2.5 mA Ci VI = VCC or GND 5 V pF † This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC. switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) FROM TO LOAD SN54AHCT257 PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE TA = 25°C MIN MAX UNIT (INPUT) (OUTPUT) CAPACITANCE MIN TYP MAX MIN MAX tPLH* AorB Y CL =15 pF ns tPHL* A or B Y CL = 15 pF ns tPLH* A/B Y CL =15 pF ns tPHL* A/B Y CL = 15 pF ns tPZH* OE Y CL =15 pF ns tPZL* OE Y CL = 15 pF ns tPHZ* OE Y CL =15 pF ns tPLZ* OE Y CL = 15 pF ns tPLH AorB Y CL =50 pF ns tPHL A or B Y CL = 50 pF ns tPLH A/B Y CL =50 pF ns tPLH A/B Y CL = 50 pF ns tPZH OE Y CL =50 pF ns tPZL OE Y CL = 50 pF ns tPHZ OE Y CL =50 pF ns tPLZ OE Y CL = 50 pF ns * On products compliant to MIL-PRF-38535, this parameter is not production tested. |
Podobny numer części - SN74AHCT257N |
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Podobny opis - SN74AHCT257N |
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