Original Part
Zero Delay Buffer IC 133MHz 1 8-SOIC (0.154", 3.90mm Width)
Alternative Part
1. PL123-05SC-R Substitution Conclusion
The PL123-05SC-R closely matches the original part 2305-1HDCGI8 in key parameters: supply voltage (3V to 3.6V), input-to-output ratio (1:5), PLL with bypass capability, package (8-SOIC), and maximum frequency (134MHz). While its frequency is slightly higher, compatibility remains acceptable. The main deviation lies in the specification of input/output signal types: the original part explicitly defines the input as LVTTL and outputs as CMOS/LVCMOS/TTL, whereas the PL123-05SC-R is generically labeled as “Clock.” In a practical substitution, it is essential to verify whether this device supports the specific logic levels used in the system; otherwise, signal integrity or interface compatibility issues may arise. Additionally, the manufacturer change from Renesas to Microchip may introduce supply chain and documentation differences, but electrical performance is similar. With careful verification of level compatibility and pinout, substitution is generally feasible.
2. PL123S-05SC-R Substitution Conclusion
The PL123S-05SC-R shares identical parameters with the PL123-05SC-R and likewise matches the original part in supply voltage, ratio, PLL function, package, and frequency (134MHz). Minor frequency variations do not affect usability. The critical distinction remains the unspecified input/output logic levels—labeled only as “Clock”—while the original part clearly supports LVTTL input and multiple output standards. Before direct substitution, the PL123S-05SC-R datasheet must be reviewed to confirm LVTTL compatibility and avoid potential level-mismatch risks. Other aspects, such as package and functionality, are identical, making substitution highly viable, though application-specific validation based on detailed datasheets is recommended.
Analysis ID: 47F3-C5BD000
Based on part parameters and for reference only. Not to be used for procurement or production.
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