NXP Semiconductors MPC8347VRADDB

Overview

MPC8347VRADDB 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-Mbps Ethernet controllers (TSECs), DDR SDRAM controller supporting 32-/64-bit interfaces at up to 333 MHz (TBGA), PCI 2.2-compliant 32-bit/66-MHz interface, and hardware security engine with AES-128/192/256, DES/3DES, SHA-1/256, and RSA acceleration - deployed in network edge routers, industrial gateways, and secure communications appliances.

For engineers reviewing the MPC8347VRADDB datasheet, MPC8347VRADDB pinout, MPC8347VRADDB application, or MPC8347VRADDB equivalent, key selection considerations include DDR timing compliance (2.5-V SSTL2 I/O), TSEC RGMII/GMII/TBI interface support, PCI host/agent mode flexibility, e300 core cache configuration (32-KB I/D cache), and security engine crypto-channel concurrency - all validated for revision 1.1 silicon per MPC8347EEC Rev. 11 (02/2009).

Technical Context

The MPC8347VRADDB implements a superscalar PowerPC e300 core with floating-point, integer, and branch units, coupled with tightly integrated system logic including dual TSECs with IEEE 802.3z/802.3ac-compliant GMII/RGMII/TBI physical layer support and on-chip 2-KB transmit/receive FIFOs per channel. Its DDR SDRAM controller supports programmable timing, ECC, page-mode operation, and registered DIMM compatibility with 2.5-V SSTL2 I/O.

PCI interface operates in host or agent mode per configuration, compliant with PCI Spec 2.2 at 32-bit/66 MHz with parity, address translation, and five-master arbitration; security engine delivers concurrent crypto processing via four dedicated channels - PKEU (RSA/ECC), DEU (DES/3DES), AESU (Rijndael), AFEU (RC4), and MDEU (SHA/MD5/HMAC) - each with 256-byte buffer and flow control.

Key Specifications

Pinout & Package

Package: 620-pin TBGA (Thin Ball Grid Array), 27 mm × 27 mm, 1.0-mm ball pitch, RoHS-compliant - optimized for high-density routing and thermal dissipation in compact networking modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8347VRADDB, MPC8349EVRADDB offers drop-in silicon replacement with verified DDR/PCI stability improvements, while MPC8548CVMALG provides higher compute headroom at the cost of increased BOM complexity and loss of integrated security acceleration - making MPC8347VRADDB optimal for cost-sensitive, security-critical embedded networking with mature DDR-1 ecosystems.

Availability

MPC8347VRADDB is available at Aetrix Electronics and suitable for network edge routers, industrial protocol gateways, and secure wireless access points requiring stable component supply through extended production lifecycles.

Supply support for MPC8347VRADDB 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) is a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MPC8347VRADDB belongs to the PowerQUICC™ II Pro family, designed specifically for cost-optimized, highly integrated networking and communications infrastructure requiring deterministic real-time performance and hardware-accelerated security.

FAQ

What is the maximum DDR data rate supported by the MPC8347VRADDB?

The MPC8347VRADDB supports DDR-1 SDRAM at up to 333 MHz in the TBGA package variant, delivering 5.3 GB/s peak bandwidth on the 64-bit interface. This specification is validated for revision 1.1 silicon per MPC8347EEC Rev. 11 (02/2009) and requires 2.5-V SSTL2-compatible DRAM components with full ECC support. The MPC8347VRADDB does not support DDR2 or DDR3 memory standards.

Does the MPC8347VRADDB include hardware cryptographic acceleration?

Yes, the MPC8347VRADDB integrates a dedicated security engine with four crypto-channels supporting AES-128/192/256, DES/3DES, SHA-1/256, MD5, HMAC, RSA-2048, and elliptic curve cryptography. Each channel handles multi-command descriptor chains with 256-byte buffers and flow control, enabling concurrent IPSec/SSL/TLS processing without CPU intervention - a core feature confirmed in Section 1.1 of the MPC8347EEC hardware specifications.

What package type and pin count does the MPC8347VRADDB use?

The MPC8347VRADDB uses a 620-ball TBGA (Thin Ball Grid Array) package with 27 mm × 27 mm footprint and 1.0-mm ball pitch, as specified in Section 18 "Package and Pin Listings" of the MPC8347EEC Rev. 11 document. This package supports high-density PCB routing and thermal dissipation requirements for sustained operation at 105°C junction temperature in networking equipment.

Can the MPC8347VRADDB operate in both PCI host and agent modes?

Yes, the MPC8347VRADDB's PCI interface is configurable for either host or agent mode via strap pins and configuration registers, complying fully with PCI Specification Revision 2.2 at 32-bit/66 MHz. In host mode, it functions as a PCI bus master with address translation and memory prefetching; in agent mode, it responds to PCI transactions initiated by an external host - a capability explicitly detailed in Section 13 of the MPC8347EEC hardware specifications.

What is the recommended power supply sequencing for the MPC8347VRADDB?

The MPC8347VRADDB requires core voltage (VDD = 1.2 V) to be applied before I/O voltages (GVDD = 2.5 V, OVDD/LVDD = 3.3 V) and PORESET asserted prior to full power ramp-up, as stated in Section 2.2 "Power Sequencing" of MPC8347EEC Rev. 11. This sequence minimizes active driving on I/O pins during power transition and ensures reliable reset initialization - deviations may cause undefined behavior or latch-up in revision 1.1 silicon.