NXP Semiconductors MPC8347ECVRADDB

Overview

MPC8347ECVRADDB 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), DDR1/DDR2 SDRAM memory controller with ECC support, PCI 2.3 interface, and hardware security engine supporting AES-128/192/256, DES/3DES, SHA-1/224/256, and RSA up to 2048-bit - deployed in network edge routers, industrial gateways, and secure communications appliances.

For engineers reviewing the MPC8347ECVRADDB datasheet, MPC8347ECVRADDB pinout, MPC8347ECVRADDB application, or MPC8347ECVRADDB equivalent, this page delivers verified technical context, validated package mapping (PBGA-620), confirmed pin functions per Freescale's Package and Pin Listings (Section 18), and real-world selection guidance for legacy PowerQUICC II Pro migration paths.

Technical Context

The MPC8347ECVRADDB implements a superscalar e300 core compliant with Power Architecture® technology, with separate 32-Kbyte instruction and data L1 caches (lockable portions), dynamic power management, and software compatibility across Freescale's PowerPC families. Its memory subsystem integrates a programmable DDR1/DDR2 SDRAM controller supporting 32-/64-bit interfaces up to 400 MHz (TBGA) or 266 MHz (PBGA), four physical banks (up to 1 Gbyte each), and full ECC.

Connectivity includes two IEEE 802.3-compliant TSECs with RGMII/GMII/TBI/RTBI interfaces, PCI 2.3 host/agent mode with 32-bit/66 MHz operation and parity, USB 2.0 dual-role controller (EHCI-compatible), dual I²C, DUART, SPI, GPIO (52 pins), and JTAG boundary scan. The on-die security engine features four crypto-channels with dedicated AESU, DEU, PKEU, MDEU, and RNG units.

Key Specifications

Pinout & Package

PBGA-620 package: 35 mm × 35 mm body, 1.27 mm ball pitch, RoHS-compliant lead-free finish. Thermal pad on underside for enhanced heat dissipation in high-power configurations (667 MHz operation).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8347ECVRADDB, MPC8349ECVRADDB offers higher DDR2 bandwidth while maintaining full pin and software compatibility, whereas MPC8377ECVRADDB trades one TSEC for PCIe - making it unsuitable as a drop-in replacement but viable for PCIe-centric designs requiring similar crypto and processing capability.

Availability

MPC8347ECVRADDB is available at Aetrix Electronics and suitable for network edge routers, industrial protocol gateways, and secure wireless access points requiring stable component supply across extended product lifecycles.

Supply support for MPC8347ECVRADDB 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) was a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and networking markets.

The MPC8347ECVRADDB belongs to the PowerQUICC II Pro family - designed specifically for cost-sensitive, power-efficient networking and communications infrastructure requiring integrated security, dual Gigabit Ethernet, and DDR memory control without external co-processors.

FAQ

What is the maximum DDR2 data rate supported by the MPC8347ECVRADDB?

The MPC8347ECVRADDB supports DDR2 SDRAM up to 266 MHz data rate in PBGA-620 package configurations, delivering 4.2 GB/s peak bandwidth on a 64-bit bus. This is confirmed in Section 6 of the MPC8347EAEC Rev. 12 specification, which states "up to 400 MHz data rate for TBGA, 266 MHz for PBGA". The MPC8347ECVRADDB uses the PBGA variant, so 266 MHz is the validated limit. Higher rates require MPC8349ECVRADDB.

Does the MPC8347ECVRADDB include hardware support for AES-256 encryption?

Yes, the MPC8347ECVRADDB includes a dedicated Advanced Encryption Standard Unit (AESU) that fully supports AES-128, AES-192, and AES-256 in ECB, CBC, CCM, and counter (CTR) modes. This is documented in Section 1 (Overview) of the MPC8347EAEC Rev. 12 datasheet, which specifies "AESU implements the Rijndael symmetric-key cipher with key lengths of 128, 192, and 256 bits".

Is the MPC8347ECVRADDB pin-compatible with the MPC8349ECVRADDB?

Yes, the MPC8347ECVRADDB and MPC8349ECVRADDB share identical PBGA-620 mechanical packaging and pinout, including power, clock, reset, DDR, TSEC, PCI, and peripheral signal assignments. Freescale explicitly confirms this in the MPC8349EA reference manual and ordering information tables, enabling direct PCB reuse - though DDR2 timing parameters must be revalidated due to the higher 333 MHz capability of the MPC8349ECVRADDB.

What power supply sequencing is required for reliable MPC8347ECVRADDB startup?

The MPC8347ECVRADDB requires core voltage (VDD/AVDD) to reach 90% of nominal value before any I/O supply (GVDD/LVDD/OVDD) rises above 0.7 V, as shown in Figure 4 of the MPC8347EAEC Rev. 12 datasheet. Failure to follow this sequence risks I/O contention and current spikes up to 5 A. PORESET must be asserted before power ramp completion to ensure proper initialization.

Which security protocols does the MPC8347ECVRADDB hardware engine accelerate?

The MPC8347ECVRADDB security engine accelerates IPSec, SSL/TLS, SRTP, IEEE 802.11i, iSCSI, and IKE protocols through dedicated execution units: AESU for AES-128/192/256, DEU for DES/3DES, PKEU for RSA up to 2048-bit, MDEU for SHA-1/224/256 and MD5, and RNG for cryptographically secure random number generation - all confirmed in Section 1 Overview of MPC8347EAEC Rev. 12.