SN74LVCH16T245_15 Datasheet, PDF (17/30 Pages) Texas Instruments – 16-bit Dual-supply Bus Transceiver

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10.2 Typical Application
1.8 V
0.1 µF
SN74LVCH16T245
SCES635B – JULY 2005 – REVISED APRIL 2015
0.1 µF
1 µF
3.3 V
1.8-V
Controller
Data
GND
VCCA
1DIR/2DIR
1OE/2OE
VCCB
SN74LVCH16T245
1A1/2A1
1A2/2A2
1A3/2A3
1A4/2A4
1A5/2A5
1A6/2A6
1A7/2A7
1A8/2A8
GND
1B1/2B1
1B2/2B2
1B3/2B3
1B4/2B4
1B5/2B5
1B6/2B6
1B7/2B7
1B8/2B8
3.3-V
System
Data
GND
Figure 4. Application Schematic
10.2.1 Design Requirements
This device uses drivers which are enabled depending on the state of the DIR pin. The designer must know the
intended flow of data and take care not to violate any of the high or low logic levels. It is important that unused
data inputs not be floating, as this can cause excessive internal leakage on the input CMOS structure. Make sure
to tie any unused input and output ports directly to ground. For this design example, use the parameters listed in
Table 2.
Table 2. Design Parameters
DESIGN PARAMETERS
Input voltage range
Output voltage
EXAMPLE VALUE
1.65 V to 5.5 V
1.65 V to 5.5 V
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