NXP Semiconductors MPC8306CVMACDCA

Overview

MPC8306CVMACDCA from NXP Semiconductors (formerly Freescale) is a PowerQUICC II Pro integrated communications processor featuring an e300c3 Power Architecture core, dual integer units, 16 KB instruction and data caches, and a 16-bit DDR2 SDRAM controller operating up to 266 MHz. It integrates a QUICC Engine block with five unified communication controllers (UCCs), supporting 10/100 Mbps Ethernet via MII/RMII, IEEE 1588 time synchronization, HDLC, TDM, and FlexCAN 2.0B - deployed in residential gateways, industrial control systems, and test & measurement equipment.

For engineers reviewing the MPC8306CVMACDCA datasheet, MPC8306CVMACDCA pinout, MPC8306CVMACDCA application, or MPC8306CVMACDCA equivalent, key selection considerations include its 333 MHz core frequency, 133 MHz QUICC Engine clock, 1.0 V core supply, 1.8 V DDR2 I/O, and 3.3 V general-purpose I/O voltage - all critical for power-aware embedded networking designs requiring protocol flexibility and deterministic real-time I/O.

Technical Context

The MPC8306CVMACDCA implements a superscalar e300c3 core derived from MPC603e architecture, with four-stage pipeline, floating-point unit, and dynamic power management. Its memory subsystem includes a programmable 16-bit DDR2 controller supporting up to 266 MHz data rate, 14 address lines, and auto-refresh - optimized for low-latency packet buffering in edge routing applications.

The QUICC Engine block operates independently at up to 233 MHz with its own PLL and 48 KB instruction RAM, executing protocol stacks for five UCCs. Each UCC supports configurable serial interfaces including MII/RMII Ethernet, HDLC, TDM (up to 128 channels), and IEEE 1588 timestamping - enabling hardware-accelerated, multi-protocol convergence without CPU intervention.

Key Specifications

Pinout & Package

Package: 484-pin PBGA (27 mm × 27 mm, 1.0 mm pitch), RoHS-compliant, thermal pad exposed on underside.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8306CVMACDCA, MPC8313EVRAG delivers higher compute headroom and hardware crypto but demands board rework, while MPC8315EVRAG offers PCIe expansion within the same package - making it the only true footprint-compatible upgrade path for future-proofing without layout change.

Availability

MPC8306CVMACDCA is available at Aetrix Electronics and suitable for residential gateways, industrial PLCs, and test & measurement instruments requiring stable component supply and long-term lifecycle support.

Supply support for MPC8306CVMACDCA 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 is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep heritage in Power Architecture and communications processors.

The MPC8306CVMACDCA belongs to the PowerQUICC II Pro family - designed specifically for cost-sensitive, power-efficient embedded networking applications where integration of CPU, QUICC Engine, DDR2, and multiple serial protocols reduces system complexity and time-to-market.

FAQ

What is the maximum DDR2 SDRAM data rate supported by the MPC8306CVMACDCA?

The MPC8306CVMACDCA supports a maximum DDR2 SDRAM data rate of 266 MHz on its 16-bit interface. This corresponds to a peak theoretical bandwidth of 4.256 GB/s, sufficient for packet buffering in 100 Mbps Ethernet applications. The controller supports auto-refresh, CKE-based power-down, and up to 16 open pages simultaneously - verified in Freescale's MPC8306EC Rev. 3 specification document, Section 6.

Does the MPC8306CVMACDCA support IEEE 1588 Precision Time Protocol?

Yes, the MPC8306CVMACDCA supports IEEE 1588™ time synchronization through its five unified communication controllers (UCCs). Each UCC can be configured for MII/RMII Ethernet with hardware timestamping capability, enabling sub-microsecond clock alignment in industrial automation and telecom timing applications - as confirmed in Section 1.1 Features and Figure 1 of the MPC8306EC Rev. 3 datasheet.

What power supply sequencing is required for reliable startup of the MPC8306CVMACDCA?

The MPC8306CVMACDCA requires core voltage (VDD = 1.0 V) to be applied before I/O supplies (GVDD = 1.8 V and OVDD = 3.3 V). Specifically, VDD must reach 90% of nominal before GVDD/OVDD exceed 0.7 V, and PORESET must remain asserted for ≥32 SYS_CLK_IN cycles after clocks stabilize - per Figure 3 and Section 2.2 of MPC8306EC Rev. 3. Failure to follow this sequence risks I/O contention and excessive current draw.

How many CAN interfaces does the MPC8306CVMACDCA integrate, and what protocol version do they support?

The MPC8306CVMACDCA integrates four FlexCAN modules, each fully compliant with CAN protocol specification version 2.0B. These support up to 64 message buffers per module, hardware ID filtering, programmable loop-back mode, and global network time synchronization - documented in Section 14 of the MPC8306EC Rev. 3 hardware specifications.

Is the MPC8306CVMACDCA pin-compatible with other PowerQUICC II Pro processors like the MPC8313 or MPC8315?

No, the MPC8306CVMACDCA is not pin-compatible with MPC8313EVRAG or MPC8315EVRAG. While MPC8315EVRAG shares the same 484-pin PBGA footprint, its ball map differs significantly - particularly in DDR2 signal placement and power distribution. MPC8313EVRAG uses a larger 620-pin PBGA package. Mechanical compatibility does not imply electrical or functional interchangeability - verified against Freescale's ordering information tables in Section 25 of MPC8306EC Rev. 3.