SN74LVC2T45-EP Datasheet, PDF (10/25 Pages) Texas Instruments – DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER

SN74LVC2T45-EP
SCES777C – NOVEMBER 2008 – REVISED JULY 2010
Power-Up Considerations
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A proper power-up sequence always should be followed to avoid excessive supply current, bus contention,
oscillations, or other anomalies. To guard against such power-up problems, take the following precautions:
1. Connect ground before any supply voltage is applied.
2. Power up V_CCA.
3. V_CCB can be ramped up along with or after V_CCA.
V_CCB
0V
1.8 V
2.5 V
3.3 V
5V
Table 3. Typical Total Static Power Consumption (I_CCA + I_CCB)
V_CCA
0V
1.8 V
2.5 V
3.3 V
5V
0
<1
<1
<1
<1
<1
<2
<2
<2
2
<1
<2
<2
<2
<2
<1
<2
<2
<2
<2
<1
2
<2
<2
<2
UNIT
mA
10
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