SN74AVC1T45 Datasheet, PDF (9/22 Pages) Texas Instruments – SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

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SN74AVC1T45
SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
SCES530D – DECEMBER 2003 – REVISED NOVEMBER 2005
Power-Up Considerations
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
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
Table 1. Typical Total Static Power Consumption (I_CCA + I_CCB)
V_CCA
0V
1.2 V
1.5 V
1.8 V
2.5 V
3.3 V
0
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<1
<1
<1
<1
1
<0.5
<1
<1
<1
<1
1
<0.5
<1
<1
<1
<1
<1
<0.5
1
<1
<1
<1
<1
<0.5
1
<1
<1
<1
<1
UNIT
µA
9