NXP Semiconductors MPC8247VRMIBA

Overview

MPC8247VRMIBA from NXP Semiconductors (formerly Freescale) is a PowerQUICC II integrated communications processor combining a 32-bit Power Architecture G2_LE core (266–400 MHz), dual Fast Communication Controllers (FCCs) for 10/100 Ethernet, three Serial Communication Controllers (SCCs), USB 2.0 full/low-speed controller, PCI bridge (32-bit, 66 MHz), and memory controller - deployed in telecom edge routers, industrial gateways, and secure network appliances requiring deterministic real-time packet processing.

For engineers reviewing the MPC8247VRMIBA datasheet, MPC8247VRMIBA pinout, MPC8247VRMIBA application, or MPC8247VRMIBA equivalent, this page delivers verified package mapping (516-pin PBGA, VR lead-free), confirmed absence of integrated security engine (SEC), validated CPM-based protocol offload capability, and precise thermal resistance values (RθJA = 27°C/W on single-layer board) critical for thermal design validation.

Technical Context

The MPC8247VRMIBA implements a dual-issue G2_LE core with separate 16 KB instruction and 16 KB data caches (four-way set associative, physically addressed), MMU support, and independent PLLs for core and CPM clock domains - enabling asynchronous frequency scaling (e.g., 400 MHz core / 200 MHz CPM). Its CPM executes microcode for serial protocols including HDLC, UART, and transparent modes, interfacing via 16 KB dual-port RAM and dedicated DMA channels.

It integrates a 60x bus (64-bit data, 32-bit address, up to 133 MHz), 60x-to-PCI bridge compliant with PCI Spec 2.2, eight-bank memory controller supporting SDRAM/Flash/SRAM, and system interface unit (SIU) with RTC, watchdog timer, JTAG TAP, and clock synthesizer - all operating under split supply (1.5 V core, 3.3 V I/O).

Key Specifications

Pinout & Package

Package: 516-ball Plastic Ball Grid Array (PBGA), VR variant, lead-free, 27 mm × 27 mm footprint, 1.0 mm ball pitch, JEDEC MO-205AC compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8248VRMIBA and MPC8271VRMIBA, the MPC8247VRMIBA provides identical compute, I/O, and memory subsystem performance but excludes both the security engine and UTOPIA/ATM features - making it the most cost-effective PowerQUICC II option for deterministic Ethernet and serial protocol processing without cryptographic or cell-switching requirements.

Availability

MPC8247VRMIBA is available at Aetrix Electronics and suitable for telecom edge routers, industrial protocol gateways, and secure network appliances requiring stable component supply across extended product lifecycles and temperature ranges (0°C to 70°C ambient).

Supply support for MPC8247VRMIBA 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

NXP Semiconductors, headquartered in Eindhoven, Netherlands, designs high-performance microcontrollers and processors for automotive, industrial, and networking applications - with heritage from Freescale's Power Architecture portfolio.

The MPC8247VRMIBA belongs to the PowerQUICC II family, engineered specifically for embedded communications infrastructure demanding real-time protocol offload, multi-interface connectivity, and deterministic packet forwarding - not general-purpose computing.

FAQ

Does the MPC8247VRMIBA include an integrated security engine (SEC)?

No, the MPC8247VRMIBA does not include an integrated security engine. Unlike the MPC8272 and MPC8248 variants, the MPC8247VRMIBA omits the SEC block entirely - meaning it cannot accelerate DES, 3DES, AES, SHA-1, or RSA operations in hardware. Any cryptographic function must be implemented in software on the G2_LE core, resulting in higher CPU utilization and reduced throughput. This omission is explicitly documented in Table 1 of the MPC8272EC hardware specification.

What is the maximum supported CPU frequency for the MPC8247VRMIBA?

The MPC8247VRMIBA supports a maximum CPU frequency of 400 MHz, achieved using the internal PLL with a 5:1 multiplier ratio when driven by an 80 MHz CLKIN source. The device is fully characterized across 266–400 MHz operation, with DC and AC specifications guaranteed at all points within this range. Thermal design must ensure junction temperature remains ≤105°C under sustained 400 MHz load, especially with active I/O and memory controllers.

Which package type corresponds to the MPC8247VRMIBA part number?

The "VR" suffix in MPC8247VRMIBA denotes the 516-ball Plastic Ball Grid Array (PBGA) package with lead-free finish, as defined in Table 2 of the MPC8272EC specification. This VR package has a 27 mm × 27 mm body, 1.0 mm ball pitch, and complies with JEDEC MO-205AC. It is distinct from the ZQ package (lead spheres) and is not pin-compatible with smaller-footprint alternatives like the MPC8275 series.

Can the MPC8247VRMIBA support UTOPIA II interface for ATM applications?

No, the MPC8247VRMIBA does not support UTOPIA II. Table 1 confirms UTOPIA II Ports = 0 for MPC8247, whereas MPC8272 and MPC8271 list "1". The absence is architectural - no UTOPIA signal pins are allocated in the VR package pinout, and the CPM microcode lacks UTOPIA protocol handlers. For ATM SAR functionality, the MPC8271VRMIBA or MPC8272VRMIBA must be selected instead.

What are the key thermal resistance values for the MPC8247VRMIBA in its VR package?

The MPC8247VRMIBA in the 516-pin VR PBGA has RθJA = 27°C/W (natural convection, single-layer board), RθJB = 11°C/W (junction-to-board), and RθJC = 8°C/W (junction-to-case), per Table 7 of the MPC8272EC specification. These values assume JEDEC-standard test conditions and are critical for calculating junction temperature: TJ = TA + (RθJA × PD). Layout practices - including thermal vias to inner ground planes and proper VDD/VDDH decoupling - directly impact actual thermal performance in end systems.