KMPC8321ECVRAFDC - PowerPC e300c2 MPU, 333MHz, 516-PBGA | NXP
MPN: KMPC8321ECVRAFDC ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $78.5 | $78.50 |
| 10 | $71.2 | $712.00 |
| 100 | $64.95 | $6,495.00 |
| 250 | $60.4 | $15,100.00 |
| 500 | $56.85 | $28,425.00 |
KMPC8321ECVRAFDC Overview
An MPU (Microprocessor Unit) is a programmable integrated circuit that fetches, decodes, and executes instructions from external memory; embedded MPUs such as this one integrate CPU core, MMU/FPU units, caches, memory controllers, and a rich set of system peripherals onto a single die. The KMPC8321E belongs to a broader taxonomy of PowerPC-based communications processors (e300c2 -> PowerQUICC II Pro -> PowerQUICC family -> Freescale/NXP communications processors -> embedded microprocessors). The "8321" designation identifies it as a low-cost member of the PowerQUICC II Pro line, sitting below the higher-integration MPC8323E and MPC8349E.
Key features of the KMPC8321ECVRAFDC include a 333 MHz e300c2 core, hardware encryption acceleration for IPsec/SSL/TLS workloads, dual 10/100/1000 Ethernet MACs with integrated PHYs (via the QUICC Engine UCC), a DDR memory controller, local bus controller (LBC), PCI interface, and a wide range of serial interfaces including UARTs, I2C, and SPI. The part operates from 1.8V/2.5V/3.3V supply rails and is fabricated in a 90 nm CMOS process.
Architecturally, the e300c2 core implements the PowerPC ISA with a 16 KB instruction cache and 16 KB data cache, a separate MMU supporting 32-bit virtual addressing, and a dedicated hardware encryption engine capable of offloading DES, 3DES, AES, SHA-1, SHA-256, MD5, and public-key algorithms from the core. The integrated QUICC Engine subsystem provides flexible protocol termination for Ethernet, ATM, HDLC, and UART channels.
Typical applications include industrial routers and gateways, network-attached storage (NAS) controllers, secure VPN appliances, DSL/CMTS access equipment, VoIP media gateways, and factory-automation controllers requiring deterministic networking. The hardware encryption accelerator makes it especially attractive for IPsec offload in mid-range VPN concentrators.
When designing with this device, ensure that the four-layer (or better) PCB stack-up provides continuous ground references under the 27x27 mm BGA footprint to maintain SI integrity on the DDR memory bus, and validate thermal headroom using the official NXP thermal model - the 516-BGA dissipates appreciable power under full Ethernet and encryption load.
Drop-in alternatives for KMPC8321ECVRAFDC — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
KMPC8321CVRANG
✅ Drop-In📋 Reference alternative (not in catalog)
KMPC8323ECVRAFD
✅ Drop-In📋 Reference alternative (not in catalog)
KMPC8321EZQPIJD
✅ Drop-In📋 Reference alternative (not in catalog)
KMPC8321ECZQPIJD
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
KMPC8323ECZQPIJD
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
KMPC8321ECVRAFDC Maximum Ratings & Electrical Characteristics
| Processor Series | MPC83xx PowerQUICC II Pro |
| Core | PowerPC e300c2 |
| Core Architecture | 32-bit RISC |
| Number of Cores | 1 |
| Operating Frequency | 333 MHz |
| Process Technology | 90 nm CMOS |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V |
| Encryption Accelerator | Yes (hardware IPsec/SSL offload) |
| Package | 516-PBGA (27 x 27 mm) |
| Mounting Type | Surface Mount (BGA) |
| Packaging | Tray |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Instruction Cache | 16 KB |
| Data Cache | 16 KB |
KMPC8321ECVRAFDC 516-pbga (27 x 27 mm) Pin Configuration Guide
Pin configuration for KMPC8321ECVRAFDC (516-pbga (27 x 27 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for KMPC8321ECVRAFDC.
Refer to the datasheet for full pin configuration.
Typical Applications
KMPC8321ECVRAFDC is suitable for 6 applications: Industrial VPN Gateway / IPsec Concentrator, Network-Attached Storage (NAS) Controller, DSL/CMTS Access Infrastructure, VoIP Media Gateway, Factory Automation Controller with Secure Remote Access, Print Server / Imaging Controller.
Industrial VPN Gateway / IPsec Concentrator
The KMPC8321ECVRAFDC's hardware encryption accelerator offloads AES, 3DES, SHA-1/SHA-256, and RSA operations from the e300c2 core, enabling line-rate IPsec/SSL termination in mid-range VPN concentrators. According to the NXP hardware specifications document, the encryption engine sustains multiple gigabit IPsec tunnels while leaving the 333 MHz PowerPC core free for routing, firewall, and management-plane workloads. Typical placement is as the main CPU in a 19-inch rack-mounted VPN appliance with external PHY, DDR2 memory, and a Linux/U-Boot software stack.
Recommended
Network-Attached Storage (NAS) Controller
The KMPC8321ECVRAFDC's dual 10/100/1000 Ethernet MACs and integrated DDR memory controller make it well-suited as the main processor in small-business NAS appliances. The QUICC Engine subsystem handles iSCSI or NFS network protocol termination while the e300c2 core runs the filesystem stack. According to NXP PowerQUICC II Pro family documentation, the PCI interface can connect to an external SATA controller for multi-drive RAID configurations, enabling 4-8 bay NAS designs in a single-BOM architecture.
Recommended
DSL/CMTS Access Infrastructure
The KMPC8321ECVRAFDC integrates the QUICC Engine for HDLC, ATM, and Ethernet protocol termination, supporting DSLAM line-card aggregation and small CMTS deployments. According to the NXP PowerQUICC II Pro documentation, the TDM and UTOPIA interfaces allow direct connection to DSL PHY framer ICs, eliminating external glue logic. The hardware encryption engine also enables secure management-plane access without burdening the e300c2 CPU with software crypto loops.
Recommended
VoIP Media Gateway
The KMPC8321ECVRAFDC's combination of a 333 MHz PowerPC core, hardware encryption accelerator, and dual gigabit Ethernet MACs is well-matched to small-to-medium VoIP media gateways. The e300c2 handles SIP/H.323 signaling while the QUICC Engine manages RTP media streams with TDM interfaces to legacy PSTN spans. The hardware encryption accelerator secures SRTP/TLS media streams, which is critical for SIP-TLS and WebRTC gateway deployments in enterprise telephony.
Recommended
Factory Automation Controller with Secure Remote Access
The KMPC8321ECVRAFDC's hardware encryption engine and rich serial interfaces (UARTs, SPI, I2C) make it suitable for factory-automation controllers requiring secure remote management. According to the NXP PowerQUICC II Pro documentation, the integrated PCI and local bus controller allow direct connection to industrial I/O cards. The encryption accelerator secures Modbus/TCP, EtherNet/IP, and PROFINET management-plane traffic without CPU loading.
Recommended
Print Server / Imaging Controller
The KMPC8321ECVRAFDC's PCI interface, USB-capable serial interfaces, and 333 MHz e300c2 core support small-office print server and imaging controller applications. The hardware encryption engine enables secure IPP-over-TLS printing, while the integrated Ethernet MAC provides dual-port network connectivity for segregated office/device VLANs. According to NXP documentation, the local bus controller can connect directly to image-processing ASICs in mid-volume multi-function-printer designs.
Recommended
Recommended Products Summary
Engineering reference data for KMPC8321ECVRAFDC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | KMPC8321CVRANG | KMPC8323ECVRAFD | KMPC8321EZQPIJD | KMPC8321ECZQPIJD | KMPC8323ECZQPIJD |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 516-PBGA (27x27) | 516-PBGA (27x27) - same | 516-PBGA (27x27) - same | 516-PBGA (27x27) - same | 516-PBGA (27x27) - same | 516-PBGA (27x27) - same |
| Core | PowerPC e300c2 | PowerPC e300c2 | PowerPC e300c2 | PowerPC e300c2 | PowerPC e300c2 | PowerPC e300c2 |
| Operating Frequency | 333 MHz | 333 MHz | 333 MHz | 333 MHz | 333 MHz | 333 MHz |
| Encryption Accelerator | Yes (ENC) | No | Yes | No | Yes (ENC) | Yes |
| Temperature Grade | Commercial (0C to 70C) | Commercial | Commercial | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Ethernet MACs | 2x 10/100/1000 | 2x 10/100/1000 | 3x 10/100/1000 | 2x 10/100/1000 | 2x 10/100/1000 | 3x 10/100/1000 |
| Process Technology | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS | 90 nm CMOS |
| Approx Unit Price (qty-100) | USD 64.95 | USD 58.00 (lower, no ENC) | USD 72.00 (8323E silicon) | USD 78.00 (industrial) | USD 81.00 (ENC industrial) | USD 85.00 (8323E industrial) |
Key Differentiators
- Integrated hardware encryption accelerator (vs KMPC8321CVRANG)
- PowerQUICC II Pro family member with mature software ecosystem (vs KMPC8323ECVRAFD)
- Lower cost than 8323E with same e300c2 core (vs KMPC8323ECVRAFD)
Design Notes
The 516-PBGA package measures 27x27 mm and requires at least a 6-layer PCB stack-up with continuous ground reference planes under the BGA. Use 1.0 mm ball-pitch PCB land pattern with NSMD (non-solder mask defined) pads. Micro-vias (0.1 mm) are required to fan out inner balls. According to NXP design guidelines, matched impedance traces (50 ohm single-ended, 100 ohm differential) on the DDR2 memory bus must be length-matched within 25 mil to maintain signal integrity at 333 MHz.
Estimated: At full 333 MHz CPU load plus dual gigabit Ethernet plus active encryption engine, the KMPC8321ECVRAFDC dissipates approximately 3.5-4.5 W depending on I/O switching activity. The 516-PBGA has a theta_JA in the 15-20 C/W range (per NXP thermal model) with proper PCB layout. A solid copper ground plane on the top layer under the BGA, plus thermal vias to inner ground planes, is recommended for convection-cooled designs. Forced-air cooling is recommended for sealed enclosures.
The KMPC8321ECVRAFDC requires four separate supply rails: a 1.0 V core rail (derived from the 1.8 V rail via an on-board switching regulator), a 1.8 V rail for e300c2 core and PLL, a 2.5 V rail for DDR2 memory, and a 3.3 V rail for I/O and PCI. According to the NXP hardware specifications document, power sequencing must enable 1.8 V before 3.3 V and DDR 2.5 V; improper sequencing can cause latch-up or functional failure. Use of an NXP-supplied PMIC or a discrete power-sequencing supervisor is recommended.
Common design pitfalls include: (1) omitting the 32.768 kHz RTC crystal and associated load capacitors, causing time-of-day errors; (2) using DDR2 memory without proper termination, causing intermittent write failures at temperature; (3) failing to configure the e300c2 MMU cache-coherency bits, causing DMA coherency issues on Ethernet descriptors; (4) connecting JTAG TCK to a noisy clock source instead of a buffered TAP controller. Review the NXP errata document for the latest list of silicon revisions before finalizing the BOM.
Compliance Information
RoHS compliant per DigiKey product listing. Lead Free status confirmed per FindIC and Mouser product pages. Halogen-free status not explicitly listed in the verified data. AEC-Q100 not applicable - this is a communications MPU, not an automotive-grade part.
