NXP Semiconductors MPC8308CZQAFDA

Overview

MPC8308CZQAFDA from NXP Semiconductors (formerly Freescale) is a PowerQUICC II Pro communications processor featuring an e300c3 core, 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 operates at up to 400 MHz core frequency with 1.0 V core supply and supports industrial temperature range (–40°C to 105°C). It targets network edge routers, industrial gateways, and secure embedded control systems.

For engineers reviewing the MPC8308CZQAFDA datasheet, MPC8308CZQAFDA pinout, MPC8308CZQAFDA application, or MPC8308CZQAFDA equivalent, key selection criteria include DDR2 timing compliance (1.8 V interface), RGMII/MII dual-mode Ethernet I/O voltage flexibility (2.5 V / 3.3 V), PCIe Gen1 x1 link capability, power sequencing requirements (VDD before I/O rails), and e300 core cache configuration (16 KB I-cache + 16 KB D-cache).

Technical Context

The MPC8308CZQAFDA integrates an e300c3 Power Architecture core with FPU, hardware debug support, and dual 32-bit DDR2 memory channels supporting up to 266 MHz data rate. Its SerDes block enables flexible high-speed serial connectivity including PCIe and optional SGMII/RGMII for Ethernet PHY interfacing.

It implements a unified interrupt architecture via IPIC, supports dual UARTs with >1 Mbps baud rate, and provides dedicated DMA channels for eTSEC, USB, and eSDHC. The enhanced local bus controller (eLBC) supports NAND/NOR flash, SRAM, and FPGA interfacing with programmable timing and 8/16/32-bit data width.

Key Specifications

Pinout & Package

The MPC8308CZQAFDA is housed in a 620-ball PBGA package (27 mm × 27 mm, 1.0 mm ball pitch) with signal ball mapping defined in Section 20 of MPC8308EC Rev. 4. Pin functions are grouped by subsystem: DDR2 (MDQ/MDQS/ADDR/CMD), eTSEC (RGMII/MII signals), PCIe (REFCLK/PERST#/PETCLK), USB (ULPI data/control), and system control (PORESET/HRESET/CFG pins).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8309CZQAFDA, the MPC8308CZQAFDA offers identical I/O and memory subsystems at lower cost and power, while MPC8313EVRAGDB trades SerDes/PCIe for SATA - making MPC8308CZQAFDA optimal for PCIe-dependent, cost-sensitive edge routing.

Availability

MPC8308CZQAFDA is available at Aetrix Electronics and suitable for industrial gateways, secure RTUs, small-form-factor routers, and medical network bridges requiring stable component supply across long product lifecycles.

Supply support for MPC8308CZQAFDA 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 processors.

The MPC8308CZQAFDA belongs to the PowerQUICC II Pro family, designed specifically for cost-sensitive, low-power communications infrastructure where integration of networking, memory, and expansion interfaces reduces system complexity.

FAQ

What is the maximum DDR2 data rate supported by the MPC8308CZQAFDA?

The MPC8308CZQAFDA supports DDR2 SDRAM at up to 266 MHz data rate (533 MT/s), with a 32-bit bus plus ECC. This is confirmed in Section 6.2.2 of the MPC8308EC Rev. 4 specification, where tMCK minimum is 7.5 ns - corresponding to 133 MHz clock frequency and 266 MHz data rate. The controller requires 1.8 V ±100 mV GVDD and tracks DRAM GVDD within 50 mV.

Does the MPC8308CZQAFDA support PCIe Gen2?

No, the MPC8308CZQAFDA supports only PCIe Gen1 (2.5 Gbps) in x1 configuration, as specified in Section 11 of MPC8308EC Rev. 4. Its SerDes block is rated for Gen1 signaling; Gen2 (5.0 Gbps) capability is not implemented. Designs requiring higher bandwidth must consider MPC837x or QorIQ families.

What are the power sequencing requirements for MPC8308CZQAFDA?

The MPC8308CZQAFDA requires strict power sequencing: core supply (VDD = 1.0 V ±50 mV) must reach 90% of nominal value before any I/O supplies (GVDD, LVDD, NVDD) rise above 0.7 V. PORESET must be asserted for ≥32 SYS_CLK_IN cycles after VDD stabilization. Failure risks I/O contention and excessive current draw, per Section 2.1.4 of MPC8308EC Rev. 4.

Can the MPC8308CZQAFDA operate in RGMII mode with 2.5 V I/O?

Yes, the MPC8308CZQAFDA supports RGMII operation at 2.5 V via LVDD1/LVDD2 rails, as defined in Table 22 of MPC8308EC Rev. 4. RGMII DC characteristics require LVDD = 2.37–2.63 V, VOH ≥ 2.0 V at –1 mA, and VOL ≤ 0.4 V at 1 mA. This mode enables direct connection to standard RGMII PHYs without level-shifting.

Is the MPC8308CZQAFDA pin-compatible with MPC8309CZQAFDA?

Yes, the MPC8308CZQAFDA and MPC8309CZQAFDA share identical 620-ball PBGA packages and pin assignments, as confirmed in Freescale's MPC8309EC documentation and package drawings. The MPC8309 adds functionality (second PCIe lane, SEC 2.2) without altering pinout - enabling drop-in upgrade paths in compatible designs.