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SN74CBT3251DR Datasheet(PDF) 5 Page - Texas Instruments |
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SN74CBT3251DR Datasheet(HTML) 5 Page - Texas Instruments |
5 / 25 page Temperature (qC) -45 -30 -15 0 15 30 45 60 75 90 0.07 0.075 0.08 0.085 0.09 0.095 0.1 D001 SN74CBT3251 www.ti.com SCDS019M – MAY 1995 – REVISED DECEMBER 2015 6.5 Electrical Characteristics over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP(1) MAX UNIT VIK VCC = 4.5 V, II = −18 mA –1.2 V II VCC = 5.5 V, VI = 5.5 V or GND ±1 µA ICC VCC = 5.5 V, IO = 0, VI = VCC or GND 3 µA ΔICC (2) Control inputs VCC = 5.5 V; One input at 3.4 V, other inputs at VCC or GND 2.5 mA Ci Control inputs VI = 3 V or 0 3.5 pF A port VO = 3 V or 0, OE = VCC 17.5 Cio(OFF) pF B port VO = 3 V or 0, OE = VCC 4 VCC = 4 V, TYP at VCC = 4 V, VI = 2.4 V, II = 15 mA 14 20 II = 64 mA 5 7 ron (3) VI = 0 Ω VCC = 4.5 V II = 30 mA 5 7 VI = 2.4 V, II = 15 mA 10 15 (1) All typical values are at VCC = 5 V (unless otherwise noted), TA = 25°C. (2) This is the increase in supply current for each input at the specified TTL voltage level, rather than VCC or GND. (3) Measured by the voltage drop between the A and the B terminals at the indicated current through the switch. On-state resistance is determined by the lower of the voltages of the two (A or B) terminals. 6.6 Switching Characteristics over operating free-air temperature free-air temperature range, CL = 50 pF (unless otherwise noted) PARAMETER FROM (INPUT) TO (OUTPUT) VCC MIN MAX UNIT VCC = 4 V 0.35 tpd (1) A or B B or A ns VCC = 5 V ±0.5 V 0.24 VCC = 4 V 6 tpd S A ns VCC = 5 V ±0.5 V 2 5.5 VCC = 4 V 6.4 S B VCC = 5 V ±0.5 V 1.5 5.6 ten ns VCC = 4 V 6.4 OE A or B VCC = 5 V ±0.5 V 1.6 5.8 VCC = 4 V 6.8 S B VCC = 5 V ±0.5 V 1.9 6.4 tdis ns VCC = 4 V 6 OE A or B VCC = 5 V ±0.5 V 2.3 6.2 (1) The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance). 6.7 Typical Characteristic Figure 1. ICC Variation With Temperature Copyright © 1995–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: SN74CBT3251 |
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