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SN74LVC8T245PWRG4 Datasheet(PDF) 4 Page - Texas Instruments |
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SN74LVC8T245PWRG4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 23 page www.ti.com Recommended Operating Conditions (1) (2) (3) (4) SN74LVC8T245 8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS SCES584A – JUNE 2005 – REVISED AUGUST 2005 VCCI VCCO MIN MAX UNIT VCCA 1.65 5.5 Supply voltage V VCCB 1.65 5.5 1.65 V to 1.95 V VCCI × 0.65 2.3 V to 2.7 V 1.7 High-level VIH Data inputs(5) V input voltage 3 V to 3.6 V 2 4.5 V to 5.5 V VCCI × 0.7 1.65 V to 1.95 V VCCI × 0.35 2.3 V to 2.7 V 0.7 Low-level VIL Data inputs(5) V input voltage 3 V to 3.6 V 0.8 4.5 V to 5.5 V VCCI × 0.3 1.65 V to 1.95 V VCCA × 0.65 2.3 V to 2.7 V 1.7 High-level Control inputs VIH V input voltage (referenced to VCCA)(6) 3 V to 3.6 V 2 4.5 V to 5.5 V VCCA × 0.7 1.65 V to 1.95 V VCCA × 0.35 2.3 V to 2.7 V 0.7 Low-level Control inputs VIL V input voltage (referenced to VCCA)(6) 3 V to 3.6 V 0.8 4.5 V to 5.5 V VCCA × 0.3 VI Input voltage Control inputs 0 5.5 V Active state 0 VCCO V Input/output VI/O voltage 3-State 0 5.5 V 1.65 V to 1.95 V –4 2.3 V to 2.7 V –8 IOH High-level output current mA 3 V to 3.6 V –24 4.5 V to 5.5 V –32 1.65 V to 1.95 V 4 2.3 V to 2.7 V 8 IOL Low-level output current mA 3 V to 3.6 V 24 4.5 V to 5.5 V 32 1.65 V to 1.95 V 20 2.3 V to 2.7 V 20 Input transition ∆t/∆v Data inputs ns/V rise or fall rate 3 V to 3.6 V 10 4.5 V to 5.5 V 5 TA Operating free-air temperature –40 85 °C (1) VCCI is the VCC associated with the data input port. (2) VCCO is the VCC associated with the output port. (3) All unused or driven (floating) data inputs (I/Os) of the device must be held at logic HIGH or LOW (preferably VCCI or GND) to ensure proper device operation and minimize power. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. (4) All unused control inputs must be held at VCCA or GND to ensure proper device operation and minimize power comsumption. (5) For VCCI values not specified in the data sheet, VIH min = VCCI × 0.7 V, VIL max = VCCI × 0.3 V. (6) For VCCA values not specified in the data sheet, VIH min = VCCA × 0.7 V, VIL max = VCCA × 0.3 V. 4 |
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