KMC7457RX1000NC

The KMC7457RX1000NC is a single‑core PowerPC G4 microprocessor operating at 1.0 GHz, supplied in a 483‑FCCBGA (29×29) surface‑mount package. The device implements the 32‑bit PowerPC architecture and integrates on‑chip cache and cache control elements to support high‑bandwidth memory subsystems.

Targeted at networking and computing systems applications, the MPC7457 implementation offers an integrated 512‑Kbyte L2 plus an internal L3 tag and controller that supports a glueless backside L3 cache through a dedicated high‑bandwidth interface. The device is qualified for consumer applications and is RoHS compliant.

Key Features

• Core & Architecture PowerPC G4 single‑core, 32‑bit implementation running at 1.0 GHz.
• On‑chip Cache Integrated 512‑Kbyte L2 cache with an internal L3 tag and controller to support a backside L3 cache.
• L3 Cache Interface Dedicated high‑bandwidth glueless interface supporting 1, 2, or 4 Mbytes of external SRAM for L3 cache and/or private memory; when 4 Mbytes of SRAM are used, up to 2 Mbytes may be used as cache with the remainder designated as private memory.
• Floating‑Point and Multimedia Includes a double‑precision floating‑point unit and a SIMD multimedia unit for DSP and multimedia acceleration.
• System Bus Support Memory storage subsystem supports the MPX bus protocol and a subset of the 60x bus protocol for main memory and other system resources.
• Package & Mounting 483‑FCCBGA (29×29) package, surface‑mount mounting type suitable for compact board designs.
• Operating Range Rated for 0 °C to 105 °C operating temperature.
• Compliance Consumer qualification and RoHS status: Compliant.
• Footprint Compatibility Footprint‑compatible, drop‑in replacement in an MPC7455 application when the core power supply is 1.3 V (per hardware specification).

Typical Applications

• Networking Equipment Suited for networking systems that require a PowerPC G4 core with integrated cache hierarchy and high‑bandwidth L3 support.
• Computing Systems Designed for embedded computing platforms where a 1.0 GHz single‑core PowerPC processor with FPU and SIMD multimedia support is required.
• Systems with High‑Bandwidth Cache Needs Ideal for designs that benefit from an on‑chip L2 plus an external L3 cache interface for expanded, high‑speed memory configurations.
• Multimedia and DSP Subsystems Applicable to systems leveraging the device’s SIMD multimedia unit and double‑precision FPU for signal and media processing tasks.

Unique Advantages

• Integrated Cache Hierarchy: On‑chip 512‑Kbyte L2 plus internal L3 tag/controller reduces external cache complexity and enables a glueless backside L3 cache implementation.
• Dedicated High‑Bandwidth L3 Interface: Supports flexible external SRAM configurations (1/2/4 Mbytes) for scalable cache or private memory use.
• PowerPC G4 Processing: Single 32‑bit core with double‑precision FPU and SIMD multimedia unit provides computational capability for networking and computing workloads.
• Compact Surface‑Mount Package: 483‑FCCBGA (29×29) package supports dense board layouts while providing the required I/O for system integration.
• Industrially Relevant Temperature Range: Rated from 0 °C to 105 °C to meet a wide range of consumer and embedded operating environments.
• RoHS Compliant: Aligns with environmental compliance requirements for leads and materials.

Why Choose KMC7457RX1000NC?

The KMC7457RX1000NC provides a balanced combination of a 1.0 GHz PowerPC G4 core, on‑chip L2 cache, and a dedicated L3 tag/controller that supports a glueless, high‑bandwidth L3 cache—making it suitable for networking and computing system designs that require integrated cache management and multimedia processing. Its support for MPX and a subset of the 60x bus protocols enables straightforward integration into existing memory subsystems.

With a compact 483‑FCCBGA footprint, RoHS compliance, and a 0 °C to 105 °C operating range, this device is aimed at designers seeking a consumer‑qualified, single‑core PowerPC solution that combines performance, cache flexibility, and straightforward board‑level integration.

If you require pricing, availability, or a formal quote for KMC7457RX1000NC, submit a request and our team will provide the details promptly.