| HD | HP | XP5IO |
|---|---|---|
| Available | Available | Available |
The differential (DIFF_) version uses complementary single-ended drivers for outputs, and differential receivers for inputs. In HP I/O banks, an optional untuned split input ODT provides a weak pull-up to VCCO. The untuned on-die source termination feature (OUTPUT_IMPEDANCE) provides the option of 40 Ω, 48 Ω, or 60 Ω of driver impedance in HP I/O banks. XP5IO I/O banks provide 40 Ω, 48 Ω, or 60 Ω of driver impedance, but it is always calibrated. The driver output impedance is set to a default of 48 Ω.