SCES640J january 2007 – july 2023 TXS0102
PRODUCTION DATA
To begin the design process, determine the following:
• Input voltage range
- Use the supply voltage of the device that is driving the TXS0102 device to determine the input voltage range. For a valid logic high the value must exceed the VIH of the input port. For a valid logic low the value must be less than the VIL of the input port.
• Output voltage range
- Use the supply voltage of the device that the TXS0102 device is driving to determine the output voltage range.
- The TXS0102 device has 10-kΩ internal pullup resistors. External pullup resistors can be added to reduce the total RC of a signal trace if necessary.
• An external pull down resistor decreases the output VOH and VOL. Use Equation 1 to calculate the VOH as a result of an external pull down resistor.
VOH = VCCx × RPD / (RPD + 10 kΩ)
Where:
• VCCx is the supply voltage on either VCCA or VCCB
• RPD is the value of the external pull down resistor