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SN74AVCH2T45DCTR 数据表(PDF) 5 Page - Texas Instruments |
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SN74AVCH2T45DCTR 数据表(HTML) 5 Page - Texas Instruments |
5 / 24 page www.ti.com Electrical Characteristics (1) (2) SN74AVCH2T45 DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS SCES582F – JULY 2004 – REVISED NOVEMBER 2007 over recommended operating free-air temperature range (unless otherwise noted) TA = 25°C –40 °C to 85°C PARAMETER TEST CONDITIONS VCCA VCCB UNIT MIN TYP MAX MIN MAX IOH = –100 µA 1.2 V to 3.6 V 1.2 V to 3.6 V VCCO – 0.2 IOH = –3 mA 1.2 V 1.2 V 0.95 IOH = –6 mA 1.4 V 1.4 V 1.05 VOH VI = VIH V IOH = –8 mA 1.65 V 1.65 V 1.2 IOH = –9 mA 2.3 V 2.3 V 1.75 IOH = –12 mA 3 V 3 V 2.3 IOL = 100 µA 1.2 V to 3.6 V 1.2 V to 3.6 V 0.2 IOL = 3 mA 1.2 V 1.2 V 0.15 IOL = 6 mA 1.4 V 1.4 V 0.35 VOL VI = VIL V IOL = 8 mA 1.65 V 1.65 V 0.45 IOL = 9 mA 2.3 V 2.3 V 0.55 IOL = 12 mA 3 V 3 V 0.7 II DIR input VI = VCCA or GND 1.2 V to 3.6 V 1.2 V to 3.6 V ±0.025 ±0.25 ±1 µA VI = 0.42 V 1.2 V 1.2 V 25 VI = 0.49 V 1.4 V 1.4 V 15 IBHL (3) VI = 0.58 V 1.65 V 1.65 V 25 µA VI = 0.7 V 2.3 V 2.3 V 45 VI = 0.8 V 3.3 V 3.3 V 100 VI = 0.78 V 1.2 V 1.2 V –25 VI = 0.91 V 1.4 V 1.4 V –15 IBHH (4) VI = 1.07 V 1.65 V 1.65 V –25 µA VI = 1.6 V 2.3 V 2.3 V –45 VI = 2 V 3.3 V 3.3 V –100 1.2 V 1.2 V 50 1.6 V 1.6 V 125 IBHLO (5) VI = 0 to VCC 1.95 V 1.95 V 200 µA 2.7 V 2.7 V 300 3.6 V 3.6 V 500 1.2 V 1.2 V –50 1.6 V 1.6 V –125 IBHHO (6) VI = 0 to VCC 1.95 V 1.95 V –200 µA 2.7 V 2.7 V –300 3.6 V 3.6 V –500 (1) VCCI is the VCC associated with the input port. (2) VCCO is the VCC associated with the output port. (3) The bus-hold circuit can sink at least the minimum low sustaining current at VIL max. IBHL should be measured after lowering VIN to GND and then raising it to VIL max. (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. Copyright © 2004–2007, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): SN74AVCH2T45 |
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