NXP Semiconductors MPC8241LVR266D

Overview

MPC8241LVR266D from Freescale Semiconductor is a 32-bit integrated processor combining an MPC603e superscalar core with PCI bridge, memory controller, DUART, DMA, and I2C peripherals - operating at up to 266 MHz CPU / 133 MHz memory / 66 MHz PCI - for embedded control in telecom infrastructure, industrial gateways, and legacy PCI-based computing systems.

For engineers reviewing the MPC8241LVR266D datasheet, MPC8241LVR266D pinout, MPC8241LVR266D application, or MPC8241LVR266D equivalent, key selection considerations include its dual-clock domain architecture (separate PLLs for core and peripheral logic), 357-ball PBGA package, 1.8 V core / 3.3 V I/O supply scheme, and support for SDRAM up to 2 GB with ECC/parity options.

Technical Context

The MPC8241LVR266D implements a decoupled 64-bit peripheral logic bus interfacing the MPC603e core to PCI, SDRAM, ROM/PortX, and I/O controllers - enabling independent frequency scaling of core (up to 266 MHz) and peripheral logic (up to 133 MHz) via separate PLLs. It supports both PCI host and agent modes with full 32-bit PCI 2.2 compliance including 5.0-V tolerance and DAC addressing.

Its memory subsystem delivers high-bandwidth access to up to 2 GB SDRAM across 1–8 banks of 16–512-Mbit devices, with programmable timing, write buffering, and selectable data-path width (32- or 64-bit). The integrated dual UART, I2C master/slave, and message unit with I2O interface provide direct connectivity to serial peripherals and intelligent I/O subsystems.

Key Specifications

Pinout & Package

Package: 357-ball plastic ball grid array (PBGA), surface-mount, thick substrate and thick mold cap - designed for thermal performance in high-density industrial PCBs with four-layer board layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8245LVR266D and MPC8272LVR266D, the MPC8241LVR266D provides the foundational integrated processor capability - full PCI bridge, SDRAM controller, and dual UART - without added peripherals or security engines, making it ideal for cost-sensitive, non-USB, non-secure legacy system upgrades where pin compatibility and proven reliability are paramount.

Availability

MPC8241LVR266D is available at Aetrix Electronics and suitable for telecom infrastructure, industrial protocol gateways, and legacy server management modules requiring stable component supply and long-term lifecycle support.

Supply support for MPC8241LVR266D 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 MPC8241LVR266D belongs to Freescale's PowerQUICC™ II family - designed specifically for PCI-based embedded control applications requiring integrated processing, bridging, and peripheral I/O in a single chip.

FAQ

What is the maximum supported SDRAM capacity for the MPC8241LVR266D?

The MPC8241LVR266D supports up to 2 GB of SDRAM across 1–8 banks of 16-, 64-, 128-, 256-, or 512-Mbit memory devices. This is achieved using its 32- or 64-bit wide data path and programmable SDRAM timing registers. The memory controller also supports normal parity, read-modify-write, or ECC error correction - making MPC8241LVR266D suitable for mission-critical industrial and telecom applications where data integrity is essential.

Does the MPC8241LVR266D support both PCI host and agent modes?

Yes, the MPC8241LVR266D supports both PCI host and PCI agent configurations. In host mode, it initiates transactions on the PCI bus to manage peripherals; in agent mode, it responds to accesses from an external PCI host - such as in a BMC or data concentrator. Its dual address translation units (ATUs) enable flexible, isolated memory mapping between PCI and local address spaces, which is essential for secure and reliable operation in either role.

What are the power supply sequencing requirements for the MPC8241LVR266D?

The MPC8241LVR266D requires strict supply sequencing: VDD/AVDD/AVDD2 (1.8 V) must not exceed GVDD_OVDD (3.3 V) by more than 0.6 V at any time, and GVDD_OVDD must not exceed VDD by more than 1.8 V. LVDD (5.0 V or 3.3 V) must remain within defined margins relative to other supplies. These constraints are enforced during power-on reset and must be maintained for ≤20 ms beyond that window - verified via the voltage ramp profiles in Figure 2 of the MPC8241EC Rev. 10 specification.

How does the MPC8241LVR266D handle clock jitter and DLL lock stability for SDRAM interfaces?

The MPC8241LVR266D integrates a digitally controlled delay-locked loop (DLL) with four configurable modes (via DLL_EXTEND and tap delay settings) to compensate for PCB trace delays between SDRAM_SYNC_OUT and SDRAM_SYNC_IN. Its DLL lock range supports loop delays up to 30 ns (Figure 7–10), and pin-to-pin skew for SDRAM_CLK[0:3] is guaranteed ≤190 ps. This ensures robust 133 MHz SDRAM operation even with varying board stackups and trace lengths - critical for deterministic memory access in real-time systems.

Is the MPC8241LVR266D pin-compatible with other members of the MPC824x family?

Yes, the MPC8241LVR266D shares the same 357-ball PBGA package and pinout with MPC8245LVR266D and MPC8272LVR266D - enabling drop-in replacement in existing designs. However, functional differences exist: MPC8245 adds USB 1.1 and enhanced DMA; MPC8272 adds cryptographic acceleration. While pinout and core/peripheral logic timing are identical, firmware and board-level validation are recommended before substitution to confirm compatibility with added features or security requirements.