Datasheet

SN74LVC1T45
SCES515K –DECEMBER 2003 –REVISED DECEMBER 2014 www.ti.com
11 Power Supply Recommendations
The SN74LVC1T45 device uses two separate configurable power-supply rails, V
CCA
and V
CCB
. V
CCA
accepts any
supply voltage from 1.65 V to 5.5 V and V
CCB
accepts any supply voltage from 1.65 V to 5.5 V. The A port and B
port are designed to track V
CCA
and V
CCB
, respectively allowing for low-voltage bidirectional translation between
any of the 1.8-V, 2.5-V, 3.3-V and 5-V voltage nodes.
12 Layout
12.1 Layout Guidelines
To ensure reliability of the device, the following common printed-circuit board layout guidelines are
recommended:
• Bypass capacitors should be used on power supplies.
• Short trace lengths should be used to avoid excessive loading.
• Placing pads on the signal paths for loading capacitors or pullup resistors to help adjust rise and fall times of
signals depends on the system requirements
12.2 Layout Example
Figure 15. Layout Example
16 Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated
Product Folder Links: SN74LVC1T45