MC7457VG1000LC

The MC7457VG1000LC is a PowerPC G4 microprocessor IC from NXP Semiconductors, implemented as a single 32‑bit core running at 1.0 GHz. It targets embedded networking and computing systems where a high‑performance, superscalar core with floating‑point and multimedia capabilities is required.

This device integrates a 512‑Kbyte L2 cache and an internal L3 tag/controller that supports a backside L3 cache, and includes a double‑precision floating point unit plus a SIMD multimedia unit—providing a compact solution for compute‑intensive embedded applications.

Key Features

• Core Architecture PowerPC G4 implementation with a superscalar, single 32‑bit core designed for compute and control tasks.
• Core Frequency 1 GHz operating speed for responsive single‑thread performance.
• On‑chip Cache & L3 Support Integrates a 512‑Kbyte L2 cache and an internal L3 tag/controller that supports 1, 2 or 4 Mbytes of external SRAM for backside L3 cache and/or private memory.
• Floating‑Point and Multimedia Includes a double‑precision floating point unit and a SIMD multimedia unit to accelerate numeric and media workloads.
• Memory/System Interface Memory storage subsystem supports the MPX bus protocol and a subset of the 60x bus protocol to main memory and system resources.
• Co‑processor/DSP Multimedia and SIMD co‑processor support for enhanced signal and data processing.
• Package & Mounting 483‑FCCBGA (29×29) surface‑mount package (also listed as 483‑BCBGA / FCCBGA footprint).
• Operating Range Specified operating temperature range: 0 °C to 105 °C.
• Compliance RoHS compliant.
• Graphics No dedicated graphics acceleration.

Typical Applications

• Networking Equipment Designed for embedded networking and communication systems that require a high‑performance RISC core and robust memory subsystem.
• Compute‑Oriented Embedded Systems Suited to embedded computing platforms that need floating‑point and SIMD acceleration for data processing tasks.
• Multimedia Processing The SIMD multimedia unit and FPU support audio, signal processing, and other media workloads within embedded devices.
• System Controller Applications Useful where a single, powerful core with cache hierarchy and external L3 cache support is required for control and management functions.

Unique Advantages

• High single‑core frequency: 1.0 GHz core speed delivers strong single‑threaded performance for control and compute tasks.
• Integrated cache hierarchy: 512‑Kbyte L2 plus L3 tag/controller support enables scalable memory performance with external SRAM options up to 4 Mbytes.
• Floating‑point and SIMD acceleration: Built‑in double‑precision FPU and SIMD multimedia unit accelerate numeric and media workloads without external accelerators.
• Compact BGA footprint: 483‑FCCBGA (29×29) surface‑mount package simplifies board integration for space‑constrained designs.
• Designed for embedded networking/compute: Memory subsystem and bus protocol support align with networking and computing system requirements.
• RoHS compliant: Conforms to lead‑free manufacturing requirements for environmental compliance.

Why Choose MC7457VG1000LC?

The MC7457VG1000LC positions itself as a focused single‑core PowerPC G4 solution that balances compute capability and system integration for embedded networking and computing platforms. Its integrated L2 cache, L3 tag/controller with external SRAM support, and onboard FPU and SIMD unit reduce the need for external acceleration while providing scalability in system memory design.

This part is appropriate for designers seeking a verified PowerPC G4 implementation in a compact 483‑FCCBGA package with an operating range up to 105 °C and RoHS compliance, offering a stable platform for long‑lifecycle embedded applications in networking and compute‑oriented systems.

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