MPC8270ZQMIBA - PowerQUICC II MPU 266MHz 516-PBGA | NXP
MPN： MPC8270ZQMIBA ✗ 停產MPC8270ZQMIBA 概覽
A microprocessor (MPU) is an integrated circuit that combines a central processing unit, memory interfaces, and peripheral controllers on a single die. The PowerQUICC II family belongs to the broader Power Architecture microprocessor hierarchy, occupying the niche between general-purpose PowerPC microprocessors and application-specific communications processors. By embedding both computation and I/O acceleration in one package, PowerQUICC II devices reduce system BOM count and latency for protocol processing, a critical advantage in base stations, DSLAMs, and router line cards.
Key features include 16 KB instruction and 16 KB data L1 caches, dual 10/100 Ethernet MACs with MII/RMII interfaces, a 32-bit PCI 2.2 controller, USB 1.1 host/slave, HDLC/TDM support for up to 256 channels, and a 60x-compatible local bus. The integrated CPM (Communications Processor Module) offloads protocol handling from the core, enabling sustained line-rate throughput on multiple serial channels concurrently. Memory interfaces include a 64-bit SDRAM controller supporting PC100/PC133 and a 32-bit local bus with Flash/ROM support.
The architecture pairs a superscalar PowerPC G2_LE core with a dedicated RISC-based CPM, allowing the host CPU to run Linux or VxWorks while the CPM independently manages time-critical protocol stacks. This dual-engine topology is the defining technical characteristic of PowerQUICC II and explains its enduring presence in telecom designs where deterministic I/O latency matters more than raw clock speed.
Typical applications include wireless base station controllers, DSL access multiplexers, multi-port router line cards, voice-over-IP gateways, and industrial serial protocol concentrators. The PCI and Ethernet integration also makes it suitable for embedded networking appliances requiring deterministic multi-protocol bridging.
When designing with this part, note that thermal dissipation in the 516-PBGA package depends heavily on PCB layer count and copper pour area; a minimum 8-layer stack-up with continuous ground plane is recommended. The core voltage requires careful sequencing to avoid latch-up, and decoupling capacitance must follow the reference board layout in the hardware specifications document.
This page synthesizes distributor pricing, drop-in same-family PowerQUICC alternatives, and practical design considerations not collated in the manufacturer datasheet alone.
直接替換替代品，適用於 MPC8270ZQMIBA — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MPC8270ZQMIBA （相同外形與佔位） — 差異在於 Process Technology, Package Type, RoHS Status, Operating Temperature, Architecture.
MPC8275ZQMIBA
✅ 直接替換聯絡詢價
查看資料表 →MPC8280ZQMIBA
✅ 直接替換📋 參考替代品（不在目錄中）
MPC8270CZQMIBA
✅ 直接替換聯絡詢價
查看資料表 →MPC8270CVRMIBA
✅ 直接替換聯絡詢價
查看資料表 →MPC8270VRMIBA
✅ 直接替換聯絡詢價
查看資料表 →MPC8270ZQMIBA 最大額定值與電氣特性
| Core Architecture | PowerPC G2_LE (32-bit) |
| Core Frequency | 266 MHz |
| Bus Frequency | 333 MHz |
| Process Technology | 0.13 micron HiPerMOS7 CMOS |
| Core Voltage | 1.45 V to 1.6 V |
| I/O Voltage | 3.3 V |
| L1 Instruction Cache | 16 KB |
| L1 Data Cache | 16 KB |
| Ethernet MAC | Dual 10/100 MII/RMII |
| PCI Controller | 32-bit PCI 2.2 |
| USB | USB 1.1 host/slave |
| Serial Channels | Up to 256 HDLC/TDM channels |
| Memory Controller | 64-bit SDRAM (PC100/PC133) |
| 封裝 | 516-PBGA (27x27 mm) |
| 工作溫度 | 0 C to 105 C |
| 安裝類型 | Surface Mount (BGA) |
| Lead Status | Contains Lead |
MPC8270ZQMIBA 516-pbga (27x27 mm) 腳位配置指南
MPC8270ZQMIBA（516-pbga (27x27 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MPC8270ZQMIBA.
請參閱 資料表 以查看完整腳位配置。
典型應用
MPC8270ZQMIBA 適用於 6 應用s: Wireless Base Station Controller, DSL Access Multiplexer (DSLAM) Line Card, Multi-Port Router Line Card, Voice-over-IP Gateway, Industrial Serial Protocol Concentrator, Embedded Networking Appliance.
Wireless Base Station Controller
The MPC8270ZQMIBA's 266 MHz PowerPC G2_LE core plus dedicated CPM offload engines make it well suited to wireless base station controller applications where deterministic multi-channel serial I/O is mandatory. The CPM handles HDLC framing for E1/T1 backhaul links and Abis traffic while the host core runs Layer 2/3 management software, removing protocol jitter that would otherwise consume CPU cycles. With dual 10/100 Ethernet MACs, a 32-bit PCI 2.2 controller for DSP cards, and a 60x local bus for ASIC glue logic, this NXP device provides the full peripheral mix a 2G/3G BSC backplane needs in a single 516-PBGA package, reducing BOM and PCB area compared to discrete CPU plus protocol ASIC designs.
推薦
DSL Access Multiplexer (DSLAM) Line Card
In DSLAM line cards the MPC8270ZQMIBA aggregates subscriber traffic and bridges to the upstream uplink, leveraging its dual 10/100 Ethernet MACs for multi-port aggregation without external switches. The 32-bit PCI 2.2 controller accepts DSL PHY framer chips while the 60x local bus attaches line-card glue logic, and the integrated CPM offloads ATM/HDLC segment-and-reassembly so the host core stays free for QoS scheduling and management plane code. Designers benefit from the 516-PBGA package's 27x27 mm footprint which fits standard ATCA/AdvancedTCA line card outlines, simplifying mechanical integration into central-office chassis.
推薦
Multi-Port Router Line Card
Multi-port router line cards use the MPC8270ZQMIBA as a control-plane plus forwarding co-processor, where the CPM handles fast-path HDLC or PPP encapsulated links and the G2_LE core runs routing daemons. The 64-bit SDRAM controller supports PC133 memory for routing table storage, while the local bus connects to a forwarding ASIC or network processor across the PCI interface. With dual Ethernet plus PCI plus USB, the device provides a rich peripheral mix that eliminates the need for separate bridge chips on a typical edge router line card.
推薦
Voice-over-IP Gateway
The MPC8270ZQMIBA fits VoIP gateway designs because its CPM offloads RTP packetization, jitter buffering, and HDLC-to-Ethernet transcoding while the host PowerPC core runs SIP/H.323 signalling stacks. The PCI 2.2 interface accepts DSP daughter cards for codec acceleration, while the dual Ethernet MACs separate signalling and media planes. Latency stays deterministic even with 256 simultaneous HDLC channels because the CPM operates independently of the core, a key advantage over general-purpose PowerPC designs without dedicated communications hardware.
推薦
Industrial Serial Protocol Concentrator
Industrial protocol concentrators benefit from the MPC8270ZQMIBA's HDLC/TDM support for up to 256 channels, which can carry Modbus, IEC 60870-5-104, or DNP3 traffic over serial or Ethernet backhaul. The host core runs a hardened Linux build with real-time extensions while the CPM maintains deterministic serial framing; the operating temperature range of 0 to 105 C suits most outdoor cabinet deployments. The PCI controller allows expansion with wireless modems or additional Ethernet ports as field requirements grow.
推薦
Embedded Networking Appliance
Embedded networking appliances such as industrial firewalls, VPN terminators, and protocol bridges use the MPC8270ZQMIBA to combine encryption acceleration offload with multi-protocol bridging on a single die. The PCI 2.2 interface accepts crypto accelerator cards, while the dual Ethernet MACs segregate trusted and untrusted zones. Running VxWorks or Linux, the host core can sustain 100+ Mbps IPSec throughput with the CPM handling link-layer framing, making this device a cost-effective alternative to more expensive QorIQ platforms in mid-range appliances.
推薦
推薦產品摘要
工程參考資料，適用於 MPC8270ZQMIBA — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MPC8275ZQMIBA | MPC8280ZQMIBA | MPC8270CZQMIBA | MPC8270CVRMIBA | MPC8270VRMIBA |
|---|---|---|---|---|---|---|
| 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 |
| Ethernet MACs | Dual 10/100 | Dual 10/100 | Dual 10/100 | Dual 10/100 | Dual 10/100 | Dual 10/100 |
| PCI Controller | 32-bit PCI 2.2 | 32-bit PCI 2.2 | 32-bit PCI 2.2 | 32-bit PCI 2.2 | 32-bit PCI 2.2 | 32-bit PCI 2.2 |
| Process Technology | 0.13 micron HiPerMOS7 | 0.13 micron HiPerMOS7 | 0.13 micron HiPerMOS7 | 0.13 micron HiPerMOS7 | 0.13 micron HiPerMOS7 | 0.13 micron HiPerMOS7 |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Operating Temperature | 0 C to 105 C | 0 C to 105 C | 0 C to 105 C | 0 C to 105 C | 0 C to 105 C | 0 C to 105 C |
主要差異化特點
- Integrated CPM offload engine (對比MPC8280ZQMIBA)
- 266 MHz speed grade (對比MPC8275ZQMIBA)
- Mature PowerPC ecosystem (對比MPC8313CVRADDC)
設計說明
The 516-PBGA package dissipates significant heat through the die flag; PCB designers must allocate at least 4 square inches of continuous top-layer copper tied to the thermal balls to keep junction temperature within the 105 C operating limit at full 266 MHz load. Estimated: at 1.5 V core and 1.2 A typical core current, dissipation is approximately 1.8 W; without thermal vias to inner ground planes junction-to-ambient thermal resistance will exceed 25 C/W, risking thermal shutdown in sealed enclosures.
Follow the NXP reference design exactly for SDRAM trace length matching; the 64-bit data bus to PC133 SDRAM requires data-byte group skew below 50 ps and clock-to-DQS alignment within 100 ps. Use 50 ohm controlled-impedance traces with reference to an unbroken ground plane, and place at least one 0.1 uF decoupling capacitor per power pin pair within 100 mil of the BGA.
Power sequencing must follow the NXP datasheet ordering: 3.3 V I/O must ramp before 1.5 V core, and the core voltage must settle within 50 ms of I/O reaching regulation. Use a power supervisor with adjustable delay rather than simple RC sequencing; failure to sequence properly can trigger latch-up events that permanently damage the part.
Do not assume the 333 MHz figure cited on some distributor listings is the core clock; it is the bus frequency. Designs that use 333 MHz as the CPU clock for timing loops will fail timing verification on the actual 266 MHz G2_LE core. Always read the device identification register at boot to confirm the operating frequency before calibrating software delays.
合規資訊
Lead-free status: no per datasheet indication that package contains lead (lead-bearing BGA solder balls). RoHS: non-compliant because the package is not lead-free. REACH and conflict minerals compliance: not stated in retrieved data.