MPC93H51AC

Overview

The MPC93H51AC is a PLL clock generator IC from the Renesas MPC93H51 series, designed for high-performance timing applications. It operates with a single power supply of 3.135V to 3.465V and supports LVCMOS and LVPECL input signals while providing LVCMOS outputs. The device features a maximum output frequency of 240 MHz and accepts input frequencies up to 300 MHz. Packaged in a 32-LQFP (7x7 mm) surface-mount format, it functions within an industrial temperature range of 0°C to +70°C. This component integrates one PLL circuit for precise frequency synthesis.

Feature Summary

• Supports LVCMOS and LVPECL inputs with LVCMOS outputs
• Maximum output frequency of 240 MHz
• Operates on a 3.3V nominal supply voltage (3.135V–3.465V)
• Available in a compact 32-LQFP package

Applications

• FSL (Field Selectable Logic) systems requiring clock generation
• LVCMOS/LVPECL level translation via PLL clocking
• General-purpose clock distribution in embedded systems

Procurement Notes

The MPC93H51AC is officially discontinued and no longer manufactured by Renesas Electronics. Availability is limited to existing stock or surplus channels. Verification of authenticity and storage history is critical due to the component's end-of-life status. Buyers should confirm the specific suffix variant matches their design requirements, as packaging and pinout details may vary between tape-and-reel and tray formats.

Selection Notes

Designers replacing this component must account for its discontinuation. The MPC93H51AC provides a 2:11 input-to-output ratio. When selecting a substitute, ensure compatibility with the required 240 MHz maximum output frequency and the 3.3V operating voltage. Verify that the replacement package matches the 32-LQFP footprint if board space is constrained. Check for equivalent support for LVPECL inputs if that interface is utilized in the current design.

Part Context

This part belongs to the MPC93H51 family of clock generators. It is distinct from similar models like the MPC93R51AC or MPC9352ACR2, which may differ in I/O configurations or supported protocols. The 'AC' suffix typically denotes specific commercial temperature ranges and packaging variations within the Renesas portfolio. Understanding the specific family characteristics is essential for accurate integration into legacy designs.

Replacement Considerations

Publicly documented substitutes include the 8T49N285A-999NLGI8. Engineers should verify electrical compatibility, particularly regarding input/output voltage levels and package dimensions, before implementing any cross-reference.