NXP Semiconductors MPC8321ECVRAFDCA

Overview

MPC8321ECVRAFDCA from Freescale Semiconductor is a PowerQUICC II Pro integrated communications processor featuring an e300c2 Power Architecture core (16 KB I/D cache, dual integer units, no FPU), QUICC Engine communications complex with five UCCs, DDR1/DDR2 memory controller (32-bit, up to 266 MHz), PCI 2.3 interface (32-bit, 66 MHz), and SEC 2.2 security engine supporting DES/3DES/AES/SHA-1/MD-5 - deployed in residential gateways, ADSL modems, and industrial control systems.

For engineers reviewing the MPC8321ECVRAFDCA datasheet, MPC8321ECVRAFDCA pinout, MPC8321ECVRAFDCA application, or MPC8321ECVRAFDCA equivalent, this page delivers verified technical context, package mapping, validated pin functions, real-world use scenarios, and two confirmed alternative parts - all grounded in Freescale's MPC8323EEC Rev. 4 specification and ordering documentation.

Technical Context

The MPC8321ECVRAFDCA implements a dual-integer-unit e300c2 core derived from Power Architecture technology, operating at up to 333 MHz with 16 KB instruction and 16 KB data caches and no floating-point unit. Its QUICC Engine block integrates a 32-bit RISC controller, five universal communication controllers (UCCs), serial DMA, and TDM support - but excludes UTOPIA interface capability, unlike the MPC8323E/MPC8323.

It features a 32-bit DDR1/DDR2 SDRAM controller (266 MHz max, 1.8 V / 2.5 V I/O), PCI 2.3-compliant host/agent interface (32-bit, 66 MHz, 3.3 V only), and SEC 2.2 crypto accelerator with dedicated execution units for DES, AES, and SHA-1 - all coordinated via a system interface unit with programmable interrupt controller (PIC) supporting 8 external and 35 internal interrupts.

Key Specifications

Pinout & Package

RoHS-compliant 620-pin PBGA package (35 mm × 35 mm, 1.0 mm pitch), thermally enhanced with exposed die paddle - pinout defined in Freescale MPC8323EEC Rev. 4 Section 21 "Package and Pin Listings", applicable to MPC8321E/MPC8321 variants per document scope note on page 2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC8323ECVRAFDCA, the MPC8321ECVRAFDCA omits UTOPIA and multi-PHY ATM but retains identical DDR/PCI/UCC foundations - making it optimal for IP-centric gateways. Versus MPC8315EVRAGDC, it adds security acceleration and dual-UART capability essential for managed residential services.

Availability

MPC8321ECVRAFDCA is available at Aetrix Electronics and suitable for residential gateways, ADSL modem/routers, and industrial control gateways requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for MPC8321ECVRAFDCA 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 MPC8321ECVRAFDCA belongs to the PowerQUICC II Pro family - designed specifically for cost-sensitive, highly integrated communications processors targeting SOHO networking, residential broadband, and industrial protocol gateways with balanced performance, power, and feature set.

FAQ

Does MPC8321ECVRAFDCA support DDR2 memory?

Yes, MPC8321ECVRAFDCA supports DDR2 SDRAM at 1.8 V I/O voltage with up to 266 MHz data rate via its integrated 32-bit DDR1/DDR2 memory controller. It also supports DDR1 at 2.5 V, but only one memory type may be used per design. The controller does not support FCRAM, ECC, or atomic logic - confirmed in Section 1.4 of MPC8323EEC Rev. 4.

What is the maximum operating frequency of the e300c2 core in MPC8321ECVRAFDCA?

The e300c2 core in MPC8321ECVRAFDCA operates at up to 333 MHz, as specified in Table 5 (Power Dissipation) of the MPC8323EEC Rev. 4 document, which explicitly covers MPC8321E and MPC8321 variants. This frequency is achievable under nominal 1.0 V core supply and 105 °C junction temperature conditions.

Does MPC8321ECVRAFDCA include a floating-point unit (FPU)?

No, MPC8321ECVRAFDCA does not include a floating-point unit. The e300c2 core is explicitly described in Section 1 (Overview) of MPC8323EEC Rev. 4 as containing "16 Kbytes of L1 instruction and data caches, dual integer units, and on-chip memory management units (MMUs)" with no mention of FPU - and the document states "the e300c2 core does not contain a floating point unit (FPU)."

Is MPC8321ECVRAFDCA pin-compatible with MPC8323ECVRAFDCA?

MPC8321ECVRAFDCA and MPC8323ECVRAFDCA share the same 620-pin PBGA package and mechanical footprint, but are not fully pin-compatible due to UTOPIA interface signals present only on MPC8323E. Section 1.2 of MPC8323EEC Rev. 4 confirms "MPC8321 and MPC8321E do not support UTOPIA," meaning those pins are NC or repurposed - requiring PCB redesign for migration.

What security algorithms are accelerated by the SEC 2.2 engine in MPC8321ECVRAFDCA?

The SEC 2.2 engine in MPC8321ECVRAFDCA accelerates DES, 3DES, AES, SHA-1, and MD-5 cryptographic operations - as documented in Sections 1.3 and 1.1.1 of MPC8323EEC Rev. 4. It does not support SHA-256 or HMAC-SHA-256, which are listed only for MPC8323E's MDEU; MPC8321E's MDEU is limited to MD5 and SHA-1 per functional scope alignment.