NXP Semiconductors MPC8308CZQAFD

Overview

MPC8308CZQAFD from NXP Semiconductors (formerly Freescale) is a PowerQUICC II Pro communications processor featuring an e300c3 core, 16 KB instruction and 16 KB data cache, dual 10/100/1000 Mbps Ethernet controllers (eTSEC), DDR2 SDRAM controller, PCI Express x1 interface, USB 2.0 HS host/device/OTG, and integrated SerDes. It serves as a highly integrated host processor for network-attached storage, industrial gateways, and edge routers requiring low power, compact footprint, and multi-protocol connectivity.

For engineers reviewing the MPC8308CZQAFD datasheet, MPC8308CZQAFD pinout, MPC8308CZQAFD application, or MPC8308CZQAFD equivalent, key selection considerations include its 400 MHz e300c3 CPU frequency, 1.0 V core supply, 1.8 V DDR2 I/O, dual RGMII/MII Ethernet interfaces, and 324-pin PBGA package with defined power sequencing requirements.

Technical Context

The MPC8308CZQAFD implements the Power Architecture user ISA with hardware debug support and integrates a programmable interrupt controller (IPIC), general-purpose DMA, two I²C controllers, DUART, SPI, GPIOs, and timers. Its SerDes block supports high-speed serial interfaces including PCI Express and optional SGMII.

It features a DDR2 memory controller supporting 266 MHz operation with 32-bit bus + ECC, dual eTSEC controllers configurable for MII or RGMII (2.5 V or 3.3 V), and USB 2.0 HS PHY with ULPI interface. Power management includes dynamic voltage and frequency scaling via the e300c3 core's power management unit.

Key Specifications

Pinout & Package

Package: 324-pin Plastic Ball Grid Array (PBGA), 19 mm × 19 mm, 1.0 mm ball pitch, RoHS-compliant. Thermal pad on underside requires solder paste stencil design per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8309CZQAFD, the MPC8308CZQAFD offers identical core performance and dual Ethernet but omits the second PCIe lane - making it optimal for cost-sensitive, single-expansion applications. Versus MPC8313EVRAGDB, it trades crypto acceleration and higher clock speed for lower power, smaller footprint, and USB OTG - better suited for non-security-focused edge nodes.

Availability

MPC8308CZQAFD is available at Aetrix Electronics and suitable for network-attached storage, industrial gateways, and smart grid edge routers requiring stable component supply across extended product lifecycles.

Supply support for MPC8308CZQAFD 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 company formed from the spin-off of Philips' semiconductor division, now specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MPC8308CZQAFD belongs to the PowerQUICC II Pro family, designed specifically for cost-optimized, low-power communications infrastructure where integration of CPU, memory controller, and multiple high-speed interfaces reduces system complexity and time-to-market.

FAQ

What is the maximum operating frequency of the MPC8308CZQAFD e300c3 core?

The MPC8308CZQAFD e300c3 core operates at a maximum frequency of 400 MHz under recommended conditions (VDD = 1.0 V ± 50 mV, TA = 0–105°C). This frequency is validated across process corners and temperature ranges, and the device achieves 400 MHz at typical power dissipation of 600 mW (core only) as specified in Table 4 of the MPC8308EC Rev. 4 hardware specification.

Does the MPC8308CZQAFD support DDR2 memory with ECC, and what is the bus width?

Yes, the MPC8308CZQAFD supports DDR2 SDRAM with full ECC capability using a 32-bit data bus plus 8-bit ECC bits (total 40-bit interface). The DDR2 controller operates at 266 MHz (533 MT/s), requires GVDD = 1.8 V ± 100 mV, and mandates MVREF = GVDD/2 with ±2% noise tolerance as defined in Tables 13 and 15 of the MPC8308EC Rev. 4 specification.

What Ethernet interface modes does the MPC8308CZQAFD support, and how are they configured?

The MPC8308CZQAFD supports both MII (3.3 V) and RGMII (2.5 V) modes on each of its two eTSEC controllers. Mode selection is determined by LVDD1/LVDD2 supply voltage and register configuration in the eTSEC control registers. RGMII mode reduces pin count by 50% versus MII and is enabled when LVDD is set to 2.5 V, as specified in Section 8.1.1 of the MPC8308EC Rev. 4 document.

Is the MPC8308CZQAFD pin-compatible with other PowerQUICC II Pro processors like the MPC8309CZQAFD?

Yes, the MPC8308CZQAFD is pin-compatible with the MPC8309CZQAFD in the 324-pin PBGA package (CZQAFD suffix). Both share identical ball map, power domains, and signal assignments; the MPC8309CZQAFD adds functionality (second PCIe lane) without altering pinout or electrical characteristics, enabling drop-in upgrade where additional SerDes resources are required.

What is the required power-up sequencing for the MPC8308CZQAFD, and why is it critical?

The MPC8308CZQAFD requires VDD (core) to reach 90% of nominal before any I/O supply (GVDD, LVDD, NVDD) exceeds 0.7 V, and PORESET must be asserted until power rails stabilize. Violating this sequence risks input/output contention and excessive current draw, potentially damaging the device or causing undefined behavior during boot - as explicitly mandated in Section 2.1.4 of the MPC8308EC Rev. 4 specification.