MC7457RX1267LC

The MC7457RX1267LC is a single‑core PowerPC G4 microprocessor operating at 1.267 GHz in a 483‑pin FCCBGA (29×29) surface‑mount package. It implements the 32‑bit PowerPC architecture and is targeted at networking and computing systems applications that require integrated cache support and SIMD multimedia acceleration.

Designed with on‑chip 512‑Kbyte L2 cache, an internal L3 tag and controller, and a dedicated backside L3 interface, the device simplifies system cache architectures while providing a high‑performance superscalar core with double‑precision floating‑point and SIMD multimedia capabilities.

Key Features

• Core & Architecture PowerPC G4 32‑bit core, single core implementation running at 1.267 GHz.
• Memory & Cache Integrated 512‑Kbyte L2 cache plus an internal L3 tag and controller with a glueless backside L3 cache interface supporting 1, 2 or 4 Mbytes of external SRAM.
• Execution & Performance Superscalar design with an execution pipeline that supports multiple instruction fetch and dispatch stages to improve instruction throughput.
• Co‑processors & Acceleration Built‑in double‑precision floating‑point unit and SIMD multimedia unit for enhanced numeric and multimedia processing.
• Package & Mounting 483‑FCCBGA (29×29) surface‑mount package for compact system integration.
• Operating Range Qualified for consumer use with an operating temperature range of 0 °C to 105 °C.
• Compliance RoHS compliant.
• Graphics No dedicated graphics acceleration included.

Typical Applications

• Networking Equipment Suited for routing, switching and network processing tasks that benefit from a high‑performance RISC core and external L3 cache support.
• Compute and Server Platforms Useful in compact compute nodes and embedded server appliances where on‑chip L2 and L3 cache controller support reduces external memory subsystem complexity.
• Embedded Processing Fits embedded systems requiring SIMD multimedia and floating‑point acceleration within a surface‑mount BGA footprint.

Unique Advantages

• Integrated L2 and L3 support: On‑chip 512‑Kbyte L2 and an internal L3 tag/controller with a dedicated backside interface simplify high‑bandwidth cache designs.
• Superscalar PowerPC G4 core: Architecture supports multiple instruction fetch/dispatch stages and includes double‑precision FPU and SIMD multimedia units for improved throughput on compute‑intensive tasks.
• Flexible L3 options: Backside interface supports 1, 2 or 4 Mbytes of external SRAM, enabling designers to balance cache size and private memory per system requirements.
• Compact surface‑mount package: 483‑FCCBGA (29×29) package enables dense board layouts while supporting robust connectivity to system memory and peripherals.
• RoHS compliant and consumer qualified: Meets lead‑free compliance requirements and is specified for consumer applications.

Why Choose MC7457RX1267LC?

The MC7457RX1267LC combines a PowerPC G4 superscalar core, integrated L2 cache and a dedicated L3 cache controller/interface to deliver a balanced solution for networking, compute and embedded systems that need on‑chip cache integration and SIMD multimedia acceleration. Its 1.267 GHz operating point and support for external SRAM L3 cache provide design flexibility for varying performance and memory requirements.

This part is well suited to engineers and procurement teams building systems where a compact BGA package, consumer qualification, and RoHS compliance are required. The internal cache and controller features reduce external cache complexity and help streamline system design and integration.

If you would like pricing, lead time, or a formal quote for the MC7457RX1267LC, request a quote or submit an inquiry to obtain current availability and purchasing information.