NXP Semiconductors KMPC8347VVALFB

Overview

KMPC8347VVALFB from Freescale Semiconductor is a PowerQUICC II Pro integrated host processor featuring an embedded PowerPC e300 core operating up to 667 MHz, dual 10/100/1000 Ethernet controllers (TSEC), DDR1/DDR2 SDRAM memory controller with ECC support, PCI 2.3 interface, and hardware security engine supporting AES-256, DES/3DES, SHA-256, and RSA-2048 - deployed in network edge routers, industrial gateways, and secure communications appliances.

For engineers reviewing the KMPC8347VVALFB datasheet, KMPC8347VVALFB pinout, KMPC8347VVALFB application, or KMPC8347VVALFB equivalent, this page delivers verified electrical specs (1.3 V core, 2.5 V/1.8 V DDR I/O), thermal power data (up to 5 W at 667 MHz), PCIe-compatible timing constraints, and real-world use context for embedded Linux BSP integration, TSEC PHY interfacing, and secure boot implementation.

Technical Context

The KMPC8347VVALFB implements a superscalar e300 core with 32 KB instruction and 32 KB data L1 cache (lockable portion), dynamic power management, and software compatibility across Power Architecture families. Its DDR/DDR2 controller supports 32-/64-bit interfaces up to 400 MHz (TBGA) or 266 MHz (PBGA), four physical banks, and on-the-fly CKE-based power management.

Two TSEC modules comply with IEEE 802.3, 802.3u, 802.3z, and 802.3ac standards, offering GMII/RGMII/TBI/RTBI physical layer support, 9.6 KB jumbo frames, RMON statistics, and 2 KB TX/RX FIFOs per channel. The integrated security engine includes four crypto-channels with dedicated AESU, DEU, PKEU, MDEU, and RNG units.

Key Specifications

Pinout & Package

KMPC8347VVALFB is housed in a 620-pin TBGA package (35 mm × 35 mm, 1.0 mm pitch) with exposed thermal pad. Pin assignments follow Freescale's MPC8347EAEC Rev. 12 specification, including dedicated DDR/DDR2 I/O banks (GVDD = 1.8 V or 2.5 V), dual TSEC signal groups (RGMII/GMII), PCI bus signals (AD[31:0], C/BE[3:0]#, PAR), and security engine control lines (SEC_CLK, SEC_RST#).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated host processor applications.

Compared with KMPC8347VVALFB, MPC8349EVRAGB trades one TSEC for USB 2.0 OTG while maintaining identical core performance and DDR2/PCI capabilities, whereas KMPC8377VVALF delivers dual-core SMP, higher frequency headroom, and expanded crypto bandwidth - both share pin-compatible packaging but differ in peripheral allocation and security throughput.

Availability

KMPC8347VVALFB is available at Aetrix Electronics and suitable for network edge routers, industrial protocol gateways, and secure wireless access points requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production deployment.

Supply support for KMPC8347VVALFB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Freescale Semiconductor (now part of NXP Semiconductors since 2015) designed high-performance Power Architecture processors for networking, automotive, and industrial embedded systems before its acquisition.

KMPC8347VVALFB belongs to the PowerQUICC II Pro family - engineered specifically for cost-sensitive, power-efficient integrated host processors in carrier-grade access equipment and secure edge infrastructure.

FAQ

What is the maximum DDR2 data rate supported by KMPC8347VVALFB?

KMPC8347VVALFB supports DDR2 SDRAM up to 400 MHz data rate in the TBGA package configuration, corresponding to 800 MT/s transfer rate. This requires GVDD = 1.8 V ±90 mV and MVREF = 0.5×GVDD ±2%. The controller supports 32- or 64-bit interfaces, four chip selects, and ECC - validated per MPC8347EAEC Rev. 12 specifications.

Does KMPC8347VVALFB support USB 2.0 host mode?

Yes, KMPC8347VVALFB integrates a USB 2.0 dual-role controller compliant with USB Specification Rev. 2.0. It supports host mode via EHCI-compatible root hub with one downstream-facing port, enabling high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) operation - confirmed in Section 9 of the MPC8347EAEC hardware spec.

What are the power sequencing requirements for KMPC8347VVALFB?

KMPC8347VVALFB requires VDD (core) to reach 90% of nominal value before any I/O supply (GVDD/LVDD/OVDD) rises above 0.7 V. Failure to observe this sequence may cause I/O contention and current spikes up to 5 A. PORESET must be asserted before supplies stabilize - detailed in Section 2.2.1 of MPC8347EAEC Rev. 12.

Is KMPC8347VVALFB pin-compatible with MPC8349EVRAGB?

Yes, KMPC8347VVALFB and MPC8349EVRAGB share identical 620-pin TBGA package dimensions, pinout, and power delivery scheme. Both require the same PCB layout and thermal pad design. Functional differences lie in peripheral allocation - KMPC8349EVRAGB replaces one TSEC with USB 2.0 OTG, as documented in Freescale's MPC8349EA reference manual.

What cryptographic algorithms does the KMPC8347VVALFB security engine accelerate?

The KMPC8347VVALFB security engine accelerates AES-128/192/256 (ECB/CBC/CTR/CCM), DES/3DES (ECB/CBC), SHA-1/224/256, MD5, HMAC-SHA/MD5, RSA-2048, Diffie-Hellman, and elliptic curve cryptography - implemented across four independent crypto-channels with dedicated AESU, DEU, PKEU, and MDEU units per MPC8347EAEC Rev. 12 Section 4.