SCEA143 December   2023 SN74AVC8T245 , SN74AVC8T245-Q1 , SN74AXC8T245 , SN74AXC8T245-Q1 , TXV0106 , TXV0106-Q1 , TXV0108 , TXV0108-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 TXV as an Upgradeable Pin-to-Pin Design
  5. 2Leveraging TXV for Power Isolation
  6. 3Bench Performance
    1. 3.1 Leveraging TXV for Low Propagation Delay (TPD) Applications
    2. 3.2 Leveraging TXV for Timing Performance
    3. 3.3 Leveraging TXV for Buffering
    4. 3.4 Leveraging TXV for High-Bandwidth Applications
  7. 4Summary
  8. 5References

3.1 Leveraging TXV for Low Propagation Delay (TPD) Applications

Low propagation delay is an important factor in high-speed circuit design on newer processors that level shift at low inputs or outputs. Inconsistent or higher propagation delay in an IC can cause data errors at a system level.

Table 3-1 compares TXV and competitor, with TXV measuring overall lower or faster propagation delay than competitor (15 pF / 125 MHz / 25°C, typical bench data).

Table 3-1 Bench - Propagation Delay (Tpd)
VCCA / VCCB Translation at 250MbpsTXV0108 (ns)Competitor (ns)
1.65 V to 1.65 V2.353.03
1.65 V to 1.8 V2.262.84
1.65 V to 3.6 V2.052.28
1.8 V to 1.8 V2.12.8
1.8 V to 3.6 V1.962.24
AVERAGE2.142.64