MPC8321CZQADDC - PowerQUICC II Pro MPU 266MHz PBGA516 | NXP
N.º da peça: MPC8321CZQADDC ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $35.2 | $352,00 |
| 100 | $31.8 | $3.180,00 |
| 500 | $28.5 | $14.250,00 |
| 1.000 | $25.9 | $25.900,00 |
MPC8321CZQADDC Visão geral
An MPU (Microprocessor Unit) is the central processing subsystem in an embedded system, executing operating-system and protocol-stack code. The PowerQUICC II Pro family sits within NXP's communications-processor taxonomy: MPU -> communications processor -> PowerQUICC -> PowerPC ecosystem -> 32-bit embedded computing. The e300c2 core is a descendant of the classic PowerPC Book E architecture with MMU and 16KB/16KB L1 caches, designed for deterministic real-time packet handling in cost-sensitive networking gear.
Key features include the e300c2 core at 266MHz, dual 10/100/1000 Ethernet controllers with TDM support, dual PCI interfaces, USB 2.0 (host/device), DDR1/DDR2 memory controller up to 266MHz, four DMA channels, and an integrated security engine. The device also provides dual UART, dual I2C, SPI, local bus, and GPIO. Unlike the MPC8321E variant, the 'C' (without ENCR suffix per Mouser's description) does not include the hardware encryption accelerator, lowering cost and power for designs that rely on software crypto or external accelerators.
Typical applications include small/medium business routers, DSLAM line cards, IP-PBX systems, industrial gateways, and protocol-conversion appliances. The 516-pin PBGA footprint gives ample I/O for parallel local-bus peripherals and multiple PHY connections.
When designing, allocate four-layer PCB stack-up with continuous power planes for the DDR2 controller; route DDR traces with matched lengths (within 25 mils) and 50-ohm characteristic impedance. The MPC8321E variant should be chosen if hardware-accelerated IPsec or SSL is required.
Alternativas drop-in para MPC8321CZQADDC — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MPC8321CZQADDC (mesmo formato e footprint) — diferindo em Mounting Type, Operating Temperature, RoHS Status, Core Architecture, Data Bus Width.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MPC8321EZQADDC
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MPC8321CVRAFDC
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$52 / unidade
Ver ficha técnica →MPC8321CZQDPRC
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MPC8321CZQADDC Classificações máximas e características elétricas
| Core Architecture | PowerPC e300c2 |
| Number of Cores | 1 |
| Largura do barramento de dados | 32-bit |
| Frequência máxima de clock | 266 MHz |
| Process Technology | 90 nm CMOS |
| Tensão de alimentação | 1.8 V / 2.5 V / 3.3 V |
| Encapsulamento | 516-PBGA (27x27 mm) |
| Contagem de pinos | 516 |
| Encryption Accelerator | Not included (8321C variant, no ENCR) |
| Ethernet Controllers | Two 10/100/1000 MAC with TDM |
| PCI Interfaces | Dual PCI 2.3 |
| USB Interface | USB 2.0 Host/Device |
| Memory Controller | DDR1/DDR2 up to 266 MHz |
| DMA Channels | 4 |
| Temperatura de operação | -40C to +85C (industrial) |
| Tipo de montagem | Surface Mount (PBGA) |
Configuração de pinos do MPC8321CZQADDC
| Pino A1 | VCC — Core 1.8V supply |
| Pino B12 | GND — Ground reference |
| Pino C20 | DDR_DQ0 — DDR2 data lane 0 |
| Pino AA1 | TSEC1_TXD0 — Gigabit Ethernet 1 transmit data 0 |
| Pino AB24 | PCI_AD31 — PCI Address/Data bus bit 31 |
| Pino T7 | JTAG_TCK — JTAG test clock |
| Pino U16 | USB1_DP — USB 2.0 data plus |
| Pino P25 | LB_AD0 — Local bus address/data 0 |
Aplicações típicas
MPC8321CZQADDC é adequado para 6 aplicaçãos: SOHO Router / Residential Gateway, DSLAM Line Card / Access Multiplexer, IP-PBX / VoIP Communications Platform, Industrial Gateway / Protocol Converter, Network-Attached Storage (NAS) Controller, Wireless LAN Access Point Controller.
SOHO Router / Residential Gateway
The MPC8321CZQADDC's 266MHz e300c2 core plus dual Gigabit Ethernet MACs make it well suited for small-office/home-office routers that need NAT, firewall, and basic QoS at line rate. The DDR2 controller (266MHz, 16/32-bit) supplies enough bandwidth for routing tables and connection tracking. Without the encryption accelerator, IPsec VPN throughput must be limited to a few hundred Mbps - acceptable for SOHO use cases where cloud-managed security is offloaded.
Recomendado
DSLAM Line Card / Access Multiplexer
The MPC8321CZQADDC's dual PCI interfaces and local-bus controller allow it to front-end multiple xDSL PHY chips or GPON/EPON transceivers in a DSLAM line card. The e300c2 core's deterministic response time handles ATM and PTM segmentation efficiently. Per NXP's PowerQUICC II Pro reference designs, this architecture was widely deployed in central-office access equipment; the 266MHz clock rate provides adequate headroom for bonded-port aggregation.
Recomendado
IP-PBX / VoIP Communications Platform
The MPC8321CZQADDC supports VoIP platforms needing dual Ethernet for WAN/LAN separation plus TDM interface for PSTN gateway connections. The integrated DMA (4 channels) and interrupt controller handle RTP packet flow with low jitter. PowerQUICC II Pro devices have a long track record in IP-PBX products; software ecosystems include SIP stacks from third parties and pre-ported DSP firmware for echo cancellation.
Recomendado
Industrial Gateway / Protocol Converter
The MPC8321CZQADDC's industrial temperature rating (-40C to +85C) and dual Ethernet plus local-bus make it ideal for industrial gateways converting between Modbus, PROFINET, EtherNet/IP, and MQTT. The PCI bus can host fieldbus master cards, while the DDR2 controller buffers large telemetry datasets. PowerQUICC II Pro devices are common in factory-floor PLCs and SCADA gateways where long-lifecycle support is critical.
Recomendado
Network-Attached Storage (NAS) Controller
The MPC8321CZQADDC's DDR2 controller (up to 1GB) and dual PCI for SATA/PATA host controllers support entry-level NAS appliances for small business backup. The 266MHz e300c2 core runs embedded Linux distros with Samba/NFS; USB 2.0 adds external-drive expandability. Note: without hardware AES, software RAID encryption will bottleneck CPU throughput, so this is suitable only for unencrypted RAID configurations.
Recomendado
Wireless LAN Access Point Controller
The MPC8321CZQADDC can act as the central host CPU in enterprise-grade 802.11n/802.11ac access points, using its Gigabit Ethernet MAC for uplink and PCI/USB for radio module host interface. The e300c2's MMU supports embedded Linux running hostapd and 802.1X supplicant stacks. The industrial temperature range supports outdoor AP enclosures. Per NXP reference designs, PowerQUICC II Pro devices are widely deployed in managed APs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MPC8321CZQADDC — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MPC8321EZQADDC | MPC8321CVRAFDC | MPC8321CZQDPRC |
|---|---|---|---|---|
| Package | 516-PBGA (27x27) | 516-PBGA (27x27) - same | 516-PBGA (27x27) - same | 516-PBGA (27x27) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Architecture | PowerPC e300c2 | PowerPC e300c2 | PowerPC e300c2 | PowerPC e300c2 |
| Encryption Accelerator | Not included | Included (IPsec/AES/SHA) | Not included | Not included |
| Ethernet Controllers | Dual GbE + TDM | Dual GbE + TDM | Dual GbE + TDM | Dual GbE + TDM |
| Memory Controller | DDR1/DDR2 up to 266 MHz | DDR1/DDR2 up to 266 MHz | DDR1/DDR2 up to 266 MHz | DDR1/DDR2 up to 266 MHz |
| Industrial Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Principais diferenciais
- Lower BOM cost vs MPC8321E for non-encrypted designs (vs MPC8321EZQADDC)
- Same e300c2 core at 266MHz with dual GbE (vs MPC8313EVRADDC)
- DDR2 support for higher memory bandwidth (vs MPC8313EVRADDC)
Notas de projeto
The 516-PBGA package has a 1.0mm ball pitch on a 27x27mm body, requiring a 4-layer PCB minimum with continuous power and ground planes. Route DDR2 traces with 50-ohm characteristic impedance and matched lengths within 25 mils between byte lanes; use microstrip with reference to a solid ground plane 6-8 mils below. Place DDR2 termination resistors within 200 mils of the MPC8321 balls and within 1 inch of the DRAM, avoiding vias in the DDR signal paths whenever possible.
The MPC8321CZQADDC requires three separate supply rails: 1.8V for the e300c2 core, 2.5V for DDR1/DDR2 I/O and select peripherals, and 3.3V for legacy I/O including PCI and USB. Per NXP's hardware design guide, the 1.8V rail must ramp within +/-10% of monotonic sequence after the 3.3V rail to prevent latch-up; a power-sequencing supervisor or simple MOSFET load switches is recommended. Decouple each supply ball with 0.1uF X7R plus 10uF bulk tantalum within 100 mils.
The 516-PBGA dissipates roughly 3-5W at 266MHz with typical networking workloads. While the package has a moderate theta_JA around 15 C/W with adequate PCB thermal vias, place an 8x8 thermal via array (0.3mm drill, 1.0mm pitch) under the die to spread heat into the bottom-side copper plane. In enclosed SOHO router enclosures without forced airflow, derate ambient by 10C or apply a heatsink for sustained line-rate packet throughput.
Do not assume the 'C' suffix variant (no encryption) is firmware-compatible with the 'E' (encryption-enabled) variants - boot loaders that probe the security engine will misbehave. Confirm with the marking on the top of the package: 'MPC8321C' vs 'MPC8321E'. Also note that the local bus and PCI bus share pins; pulling unused PCI balls to defined logic levels prevents floating-input current leakage. Always initialize the e300c2 MMU before enabling the DDR ECC controller.
Informações de conformidade
RoHS and lead-free compliant per NXP product page; not AEC-Q100 qualified - not intended for automotive safety applications; halogen-free status not explicitly stated in the verified data.