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SN74LVCH8T245PWG4 Datasheet(PDF) 6 Page - Texas Instruments |
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SN74LVCH8T245PWG4 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 33 page  6 SN74LVCH8T245 SCES637B – AUGUST 2005 – REVISED FEBRUARY 2016 www.ti.com Product Folder Links: SN74LVCH8T245 Submit Documentation Feedback Copyright © 2005–2016, Texas Instruments Incorporated (1) VCCO is the VCC associated with the output port. (2) VCCI is the VCC associated with the input port. (3) The bus-hold circuit can sink at least the minimum low sustaining current at the VIL maximum. IBHL should be measured after lowering VIN to GND and then raising it to VIL maximum. (4) The bus-hold circuit can source at least the minimum high sustaining current at VIH min. IBHH should be measured after raising VIN to VCC and then lowering it to VIH min. (5) An external driver must source at least IBHLO to switch this node from low to high. (6) An external driver must sink at least IBHHO to switch this node from high to low. 6.5 Electrical Characteristics All typical limits apply over TA = 25°C, and all maximum and minimum limits apply over TA = –40°C to 85°C (unless otherwise noted). (1) (2) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VOH High-level output voltage(1) IOH = –100 μA, VI = VIH VCCA = VCCB = 1.65 V to 4.5 V VCCO = 0.1 V IOH = –4 mA, VI = VIH VCCA = VCCB = 1.65 V 1.2 IOH = –8 mA, VI = VIH VCCA = VCCB = 2.3 V 1.9 IOH = –24 mA, VI = VIH VCCA = VCCB = 3 V 2.4 IOH = –32 mA, VI = VIH VCCA = VCCB = 4.5 V 3.8 VOL Low-level output voltage IOL = 100 μA, VI = VIL VCCA = VCCB = 1.65 V to 4.5 V 0.1 V IOL = 4 mA, VI = VIL VCCA = VCCB = 1.65 V 0.45 IOL = 8 mA, VI = VIL VCCA = VCCB = 2.3 V 0.3 IOL = 24 mA, VI = VIL VCCA = VCCB = 3 V 0.55 IOL = 32 mA, VI = VIL VCCA = VCCB = 4.5 V 0.55 II Control inputs VI = VCCA or GND VCCA = VCCB = 1.65 V to 4.5 V ±0.5 ±2 μA IBHL (3) Bus-hold low sustaining current VI = 0.58 V VCCA = VCCB = 1.65 V 15 μA VI = 0.7 V VCCA = VCCB = 2.3 V 45 VI = 0.8 V VCCA = VCCB = 3 V 75 VI = 1.35 V VCCA = VCCB = 4.5 V 100 IBHH (4) Bus-hold high sustaining current VI = 1.07 V VCCA = VCCB = 1.65 V –15 μA VI = 1.7 V VCCA = VCCB = 2.3 V –45 VI = 2 V VCCA = VCCB = 3 V –75 VI = 3.15 V VCCA = VCCB = 4.5 V –100 IBHLO (5) Bus-hold low overdrive current VI = 0 to VCC VCCA = VCCB = 1.95 V 200 μA VCCA = VCCB = 2.7 V 300 VCCA = VCCB = 3.6 V 500 VCCA = VCCB = 5.5 V 900 IBHHO (6) Bus-hold high overdrive current VI = 0 to VCC VCCA = VCCB = 1.95 V –200 μA VCCA = VCCB = 2.7 V –300 VCCA = VCCB = 3.6 V –500 VCCA = VCCB = 5.5 V –900 Ioff Input and output power-off leakage current VI or VO = 0 to 5.5 V VCCA = 0 V, VCCB = 0 to 5.5 V A Port ±0.5 ±2 μA VCCA = 0 to 5.5 V, VCCB = 0 V B Port ±0.5 ±2 IOZ Off-state output current VO = VCCO or GND, VI = VCCI or GND OE = VIH VCCA = VCCB = 1.65 V to 4.5 V A Port, B Port ±2 μA OE = X VCCA = 0 V, VCCB = 5.5 V B Port ±2 VCCA = 5.5 V, VCCB = 0 V A Port ±2 ICCA Supply current A port VI = VCCI or GND, IO = 0 VCCA = VCCB = 1.65 V to 4.5 V 20 μA VCCA = 5 V, VCCB = 0 V 20 VCCA = 0 V, VCCB = 5 V –2 |
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