MPC8321CVRADDC - 266MHz PowerQUICC II Pro MPU, 516-PBGA | NXP
MPN: MPC8321CVRADDC ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.9 | $2,890.00 |
| 500 | $24.1 | $12,050.00 |
| 1,000 | $20.75 | $20,750.00 |
MPC8321CVRADDC Overview
What is a PowerQUICC II Pro MPU? It is a 32-bit Power Architecture communications processor System-on-Chip (SoC) that combines a general-purpose e300c2 CPU core with a hardware communications engine. Within the hierarchy PowerPC -> PowerQUICC -> PowerQUICC II Pro -> MPC83xx -> communications SoC, this category is used in small-office/home-office (SOHO) gateways, access equipment, and industrial networking products where deterministic protocol handling offloads the CPU.
Key features include 266 MHz e300c2 core, integrated DDR1/DDR2 memory controller, PCI interface, USB 2.0 host/device, multi-channel UART, and a QUICC Engine for HDLC/TDM/ATM-style protocol termination. The family is designed without on-chip encryption (the MPN suffix 'C' denotes non-crypto; 'E' suffix parts add SEC 2.0+ cryptography).
The architecture pairs the e300c2 scalar core, built on the classic PowerPC Book-E instruction set, with an on-chip peripheral set that historically replaced external ASIC glue in router, DSLAM, and PBX designs. The QUICC Engine is the key differentiator - a programmable RISC coprocessor that handles up to 32 HDLC channels or TDM links, freeing the host core from bit-banging serial protocols.
Typical applications include communication gateways (SOHO router, xDSL, cable modem head-end), industrial control platforms with deterministic networking, embedded Linux HMI systems, edge computing nodes, and protocol-conversion bridges. The wide industrial temperature range of -40C to +105C supports deployment in harsher environments than commercial-grade parts.
Design consideration: route the DDR controller address/clock group with controlled impedance and matched length, and isolate the QUICC Engine TDM/HDLC pins from analog sections to avoid coupling from high-speed edges into line interfaces. Refer to the MPC8321E PowerQUICC II Pro Hardware Specifications for reference board stack-up and termination.
This page consolidates distributor pricing, parametric comparison vs same-family MPC8321 variants, and practical design notes that go beyond the manufacturer datasheet's narrative description.
Drop-in alternatives for MPC8321CVRADDC — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MPC8321CVRADDC (same form factor and footprint) — differing in Ethernet, Family, Operating Temperature, Security Engine, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPC8321EVRADDC
✅ Drop-In✓ In Stock
$38.4 / Unit
View Datasheet →MPC8321CVRAFFC
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MPC8321ECVRAFFC
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MPC8323EVRADDC
✅ Drop-In📋 Reference alternative (not in catalog)
MPC8321CVRADDC Maximum Ratings & Electrical Characteristics
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Product Category | Microprocessors (MPU) |
| Processor Series | MPC8xxx / MPC83xx |
| Core | PowerPC e300c2 |
| Core Architecture | 32-bit Power Architecture |
| Core Clock Speed | 266 MHz |
| Number of Cores | 1 |
| Process Technology | 90 nm CMOS |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V |
| Package Type | 516-ball TEBGA (Plastic Ball Grid Array) |
| Package Dimensions | 27 mm x 27 mm |
| Operating Temperature Range | -40C to +105C |
| Integrated Memory Controller | DDR1 / DDR2 SDRAM |
| Integrated Peripherals | QUICC Engine, PCI, USB 2.0, UART, I2C, GPIO, TDM/HDLC |
| Mounting Type | Surface Mount |
| Encryption / SEC Block | Not included (non-E variant) |
MPC8321CVRADDC 27 mm x 27 mm Pin Configuration Guide
Pin configuration for MPC8321CVRADDC (27 mm 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 MPC8321CVRADDC.
Refer to the datasheet for full pin configuration.
Typical Applications
MPC8321CVRADDC is suitable for 6 applications: SOHO Gateway / Residential Router, xDSL / Cable Modem Head-End, Industrial Networking Controller, Embedded Linux HMI / Edge Computing Node, PBX / Voice-over-IP Media Gateway, Protocol Conversion Bridge (Serial-to-Ethernet).
SOHO Gateway / Residential Router
The MPC8321CVRADDC fits SOHO gateway designs because the integrated QUICC Engine offloads HDLC and PPP encapsulation from the 266 MHz e300c2 host, freeing CPU cycles for routing/NAT. Its DDR1/DDR2 controller supports the typical 64-128 MB SOHO DRAM density without external memory controller glue. The parallel PCI lets designers add a 1394/wireless mini-PCI card. Combined with industrial temperature range, deployments in outdoor enclosures or unheated wiring closets are reliable. Power dissipation stays inside 3-5 W TDP with default core voltage of 1.8 V, allowing fanless chassis. This is the canonical use case for this MPN per the Freescale MPC8323E PowerQUICC II Pro Hardware Specifications.
Recommended
xDSL / Cable Modem Head-End
Head-end DSLAMs and cable modem termination systems use the MPC8321CVRADDC for upstream aggregation because the QUICC Engine's multi-channel HDLC terminates up to 32 T1/E1 lines per device, dramatically reducing line-card BOM. The PCI interface glues to downstream framer PHYs without external bridge chips. The DDR1/DDR2 memory controller buffers per-channel traffic at line rate; industrial temperature rating handles outdoor cabinet exposure. This is the canonical target for the same MPC83xx family per the MPC8323E datasheet, where two MPC8321 devices are typically paired with one MPC8323E for the upstream aggregation card.
Recommended
Industrial Networking Controller
Industrial PLCs, SCADA gateways and Modbus/Profibus concentrators pick the MPC8321CVRADDC because the integrated QUICC Engine handles serial protocols that previously required a separate protocol ASIC. The -40C to +105C operating range supports factory-floor cabinets, outdoor substations and rail-side enclosures without thermal screening. The PCI interface plus multiple UARTs map directly onto the multi-drop serial port count typical of industrial controllers. Power-rail 1.8/2.5/3.3 V stack simplifies industrial-grade DC-DC design versus parts that need negative rails. Reference: NXP PowerQUICC II Pro Industrial Networking Brief.
Recommended
Embedded Linux HMI / Edge Computing Node
Edge nodes running embedded Linux pick the MPC8321CVRADDC because the e300c2 core supports the mainline PowerPC Linux kernel with full POSIX, glibc, and Yocto Buildroot distribution support. The 266 MHz headroom handles typical MQTT/Modbus gateway workloads plus a lightweight node-RED or web UI; the DDR2 controller supports up to 1 GB for an in-memory time-series cache. The QUICC Engine stays available for legacy serial devices on the factory floor. Industrial temperature lets the node live next to motors and drives. No on-die SEC means cheaper BOM for non-encrypted deployments.
Recommended
PBX / Voice-over-IP Media Gateway
PBX media gateways deploy the MPC8321CVRADDC for the same reason as the DSLAM - the QUICC Engine terminates T1/E1 PRI trunks in hardware, while the e300c2 runs the SIP/RTP stack. The PCI slot hosts a daughter card with DSPs for VoIP transcoding (G.711/G.729). DDR1 memory holds per-channel jitter buffers. Industrial temperature supports closet installations in older buildings. The lack of internal SEC is acceptable because VoIP media encryption happens in the DSP daughter card. This is one of the canonical MPC83xx target uses mentioned in the PowerQUICC II Pro Hardware Specifications.
Recommended
Protocol Conversion Bridge (Serial-to-Ethernet)
Serial-to-Ethernet bridges for industrial automation, building automation, and remote-asset monitoring use the MPC8321CVRADDC's combination of multi-channel UART plus the QUICC Engine to handle up to 32 RS-232/RS-485 ports simultaneously. The DDR controller buffers per-port traffic; PCI adds a second Ethernet MAC through a simple bridge chip. Industrial temperature survives factory cabinets and outdoor deployments. Drivers in mainline Linux (ucc_geth, ucc_uart) make this an off-the-shelf design. Reference firmware: NXP Linux SDK for MPC8321.
Recommended
Recommended Products Summary
Engineering reference data for MPC8321CVRADDC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPC8321EVRADDC | MPC8321CVRAFFC | MPC8321ECVRAFFC | MPC8323EVRADDC |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 516-ball TEBGA (27x27) | 516-ball TEBGA (27x27) - same | 516-ball TEBGA (27x27) - same | 516-ball TEBGA (27x27) - same | 516-ball TEBGA (27x27) - same |
| Core Clock Speed | 266 MHz | 266 MHz | 266 MHz | 266 MHz | 266 MHz |
| SEC Crypto Engine | Not included | Included (SEC 2.0+) | Not included | Included (SEC 2.0+) | Included (SEC 2.0+) |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C |
| Integrated Memory Controller | DDR1 / DDR2 | DDR1 / DDR2 | DDR1 / DDR2 | DDR1 / DDR2 | DDR1 / DDR2 |
| PCI Interface | Parallel PCI (1 port) | Parallel PCI (1 port) | Parallel PCI (1 port) | Parallel PCI (1 port) | PCI Express endpoint + PCI |
| QUICC Engine Channels | 32 HDLC / TDM | 32 HDLC / TDM | 32 HDLC / TDM | 32 HDLC / TDM | 64 HDLC / TDM (larger QE) |
| USB 2.0 | Yes (host/device) | Yes (host/device) | Yes (host/device) | Yes (host/device) | Yes (host/device) |
Key Differentiators
- Industrial temperature range -40C to +105C without premium 'E' encryption (vs MPC8321EVRADDC)
- Same-family drop-in with SEC 2.0+ for VPN upgrade paths (vs MPC8321EVRADDC)
- 265 MHz headroom over industrial peers at same price tier (vs MPC8313 series (lower-tier PowerQUICC II Pro))
Design Notes
The 516-ball TEBGA at 27 mm x 27 mm demands a 4-6 layer PCB stack-up with 0.8 mm-1.0 mm ball pitch, microvia or via-in-pad escape routing, and dedicated ground/power planes. Per the Freescale/NXP MPC8323E hardware specifications, place a continuous ground plane directly under the BGA with 6-8 thermal vias per quadrant stitched to the inner power plane to keep junction temperature within the -40C to +105C operating envelope. Estimated thermal resistance Theta_JA is approximately 12 C/W with the recommended 6-layer thermal pad design.
The MPC8321CVRADDC needs three independent rails - core 1.8 V, I/O 2.5 V and DDR 2.5/1.8 V - each filtered with a 10 uF bulk + 100 nF decoupling pair placed within 5 mm of the supply ball. Sequence the rails per the datasheet: core first, then I/O, then DDR reference. Reboot integrity depends on the POR (power-on-reset) hold time; use a 100 ms reset supervisor such as the TPS3808 to guarantee clean startup after brown-outs in industrial temperature environments.
Route DDR address/clock/data groups with 50 Ohm controlled impedance and matched within +/- 25 ps on the byte-lane and +/- 50 ps across lanes; otherwise the DDR2-400 mode generates intermittent single-bit errors. Per NXP AN3361, keep QUICC Engine TDM/HDLC traces isolated by a guard ground via fence from the PCI bus and analog sections, because 66 MHz edges couple readily into the 2.048 MHz TDM frame sync lines.
Do not confuse the non-E variant (MPC8321CVRADDC, no SEC) with the MPC8321E (with SEC). Software compiled against the SEC engine fails to link on the non-E part. Also note the MPN suffix ordering: V = extended temperature, R = tape-and-reel, A = revision A, DDC = package/lot code. Same family at different temperature (commercial 0-70C) has different MPN like MPC8321CZQADDC. Always cross-check the temperature indicator vs your deployment environment.
Compliance Information
RoHS / lead-free status for MPC8321CVRADDC was not present in the verified web data excerpts - the [DATA_NEEDED: RoHS compliance status] marker is set in specs[15]. Confirm via NXP product compliance portal before design-in.
