MPC8248CVRMIBA557 - PowerQUICC II 266MHz MPU | NXP | 516-PBGA
MPN： MPC8248CVRMIBA557 ⚠ 最後購買機會MPC8248CVRMIBA557 概覽
A PowerQUICC II processor is a type of integrated communications microprocessor that combines a PowerPC CPU core with dedicated communications engine logic on a single die, enabling simultaneous general-purpose processing and high-bandwidth serial protocol handling. In the broader system hierarchy, the MPC8248 sits at the intersection of microprocessor, system-on-chip, and communications controller, commonly used in networking line cards, telecom adapters, and industrial control platforms where deterministic processing and fast peripheral access are required.
Key features include the PowerPC G2_LE core at 266 MHz, a 32-bit architecture with MMU and integrated FPU, dual 10/100 Mbps Ethernet MACs, multiple DMA channels, dual I2C interfaces, and a memory controller supporting SDRAM, ROM/Flash, and PCMCIA peripherals. The 516-PBGA package provides 516 balls on a 27x27 mm body, exposing the full range of address, data, and peripheral interfaces while supporting industrial temperature operation.
The MPC8248 architecture integrates the G2_LE core with a 32-bit 60x-compatible bus and dedicated CPM (Communications Processor Module) offload engines. This split architecture allows communication-intensive tasks such as HDLC, ATM, and Ethernet framing to be handled by hardware, freeing the core for application and routing code. Compared to discrete CPU-plus-comm-controller solutions, the integrated CPM significantly reduces board complexity.
Typical applications include telecommunications line cards, industrial routers, network switches, DSLAM line cards, and legacy industrial control systems with serial peripheral requirements. The 266 MHz core and integrated dual Ethernet MACs make it well suited to mid-range networking equipment where deterministic throughput and PowerPC software ecosystem support are priorities.
When designing with this device, ensure proper power decoupling and thermal management. The 27x27 mm PBGA package requires 8-layer or more PCB stack-up for signal integrity, and the 1.8V/2.5V/3.3V multi-rail supply scheme must use sequenced power-up per the manufacturer reference design to avoid bus contention.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, including 516-pin PBGA layout guidance and CPM offload engine integration patterns for legacy PowerPC systems.
直接替換替代品，適用於 MPC8248CVRMIBA557 — 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： MPC8248CVRMIBA557 （相同外形與佔位） — 差異在於 Operating Temperature, Core Architecture, Package, PCI Interface, Mounting Type.
MPC8248CVRMIBA
✅ 直接替換聯絡詢價
查看資料表 →MPC8272VRMIBA
✅ 直接替換聯絡詢價
查看資料表 →MPC8280VVQLDA
✅ 直接替換📋 參考替代品（不在目錄中）
MPC8248CZQUIEA
✅ 直接替換📋 參考替代品（不在目錄中）
MPC8248VRMIBA
✅ 直接替換聯絡詢價
查看資料表 →MPC8248CVRMIBA557 最大額定值與電氣特性
| Manufacturer | NXP Semiconductors (formerly Freescale Semiconductor) |
| Part Number | MPC8248CVRMIBA557 |
| Family | PowerQUICC II (MPC82xx) |
| Core Architecture | PowerPC G2_LE, 32-bit |
| Core Frequency | 266 MHz |
| 封裝 | 516-PBGA (27x27 mm) |
| 安裝類型 | Surface Mount (BGA) |
| Pin/Ball Count | 516 |
| Ethernet MAC | Dual 10/100 Mbps |
| Memory Controller | SDRAM, ROM/Flash, PCMCIA |
| I2C Interfaces | 2 |
| DMA Channels | Yes (multiple) |
| 工作溫度 | -40C to +85C (industrial) |
| 供應電壓 | 1.8V / 2.5V / 3.3V multi-rail |
| RoHS 狀態 | Compliant |
MPC8248CVRMIBA557 516-pbga (27x27 mm) 腳位配置指南
MPC8248CVRMIBA557（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： MPC8248CVRMIBA557.
請參閱 資料表 以查看完整腳位配置。
典型應用
MPC8248CVRMIBA557 適用於 6 應用s: Telecommunications Line Cards, Industrial Ethernet Switches, Network Router Platforms, Legacy Industrial Control Systems, DSLAM Line Card Controllers, Embedded Server Appliances.
Telecommunications Line Cards
The MPC8248CVRMIBA557's 266 MHz PowerPC G2_LE core combined with the integrated CPM (Communications Processor Module) makes it ideal for telecom line cards in legacy DSLAM and central-office equipment. The CPM offloads HDLC, ATM SAR, and Ethernet framing tasks from the host CPU, freeing the G2_LE core to run routing, signaling, and management code. Its dual 10/100 Ethernet MACs support two uplink/downlink paths simultaneously without an external switch. The 516-PBGA 27x27 mm package allows dense line-card layouts with the full PowerPC 60x bus and SDRAM controller exposed. Engineers porting VxWorks or Linux PowerPC BSPs to legacy line-card designs rely on this part's binary compatibility with the MPC8272 family.
推薦
Industrial Ethernet Switches
Industrial managed Ethernet switches benefit from the MPC8248CVRMIBA557's dual 10/100 MACs, multi-channel DMA, and -40C to +85C industrial temperature rating. The 266 MHz G2_LE core runs L2/L3 forwarding tables, SNMP agents, and CLI/web management stacks while the CPM accelerates Ethernet frame parsing. The 516-PBGA package exposes PCMCIA and PCI interfaces for connecting PHY transceivers and management Ethernet controllers. Compared to discrete CPU-plus-MAC designs, the integrated CPM reduces BOM cost and PCB area, critical for compact industrial switch form factors. Long-term availability through distributors like Rochester Electronics supports the 10+ year lifecycle typical of industrial networking equipment.
推薦
Network Router Platforms
Mid-range router platforms leverage the MPC8248CVRMIBA557's PowerPC ecosystem maturity and integrated dual Ethernet MACs to deliver branch-office and small-business routing. The 266 MHz core runs routing daemons (RIP, OSPF, BGP) while the CPM handles packet framing and DMA across the 60x bus. The 516-PBGA 27x27 mm package supports the multi-rail 1.8V/2.5V/3.3V supply scheme and exposes the full DDR/SDRAM controller for external memory expansion. Designers benefit from a mature Linux/PowerPC BSP and VxWorks toolchain. For higher throughput, the pin-compatible MPC8280 family offers 333 MHz without PCB rework.
推薦
Legacy Industrial Control Systems
Long-lifecycle industrial controllers - particularly in factory automation, energy SCADA, and railway signaling - rely on the MPC8248CVRMIBA557 because of its industrial temperature rating and 15+ year PowerQUICC II software support. The dual I2C, multiple DMA channels, and PCMCIA interface allow connection to legacy industrial sensors, PLC backplanes, and removable storage. The PowerPC G2_LE core at 266 MHz is sufficient for deterministic control loops at typical SCADA cycle times. Compared to migrating to ARM Cortex-A, staying on the MPC8248 family preserves decades of validated firmware and certifications.
推薦
DSLAM Line Card Controllers
DSL Access Multiplexer (DSLAM) line cards historically use the MPC8248CVRMIBA557 as the control-plane processor paired with dedicated DSL PHY silicon. The CPM offloads ATM SAR segmentation/reassembly required for DSL bearer channels while the PowerPC core handles provisioning, OAM, and management. The dual 10/100 MACs connect to the uplink switch fabric and a management network. The 516-PBGA package's high pin count accommodates both the legacy ATM interface signals and the PowerPC bus. Rochester Electronics and authorized NXP distributors continue to supply this part for legacy DSLAM maintenance contracts.
推薦
Embedded Server Appliances
Embedded server appliances such as print servers, NAS controllers, and protocol gateways historically used the MPC8248CVRMIBA557 for its Ethernet capability and PowerPC software ecosystem. The dual MACs support LAN and WAN interfaces, while the SDRAM/ROM/Flash memory controller supports large memory configurations for caching and protocol translation. The PowerPC G2_LE core runs embedded Linux with full POSIX networking stack. Although modern designs migrate to ARM Cortex-A cores, the MPC8248 family remains in service for installed-base appliances where firmware certification is locked to PowerPC.
推薦
推薦產品摘要
工程參考資料，適用於 MPC8248CVRMIBA557 — 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 | MPC8248CVRMIBA | MPC8272VRMIBA | MPC8280VVQLDA | MPC8248CZQUIEA | MPC8248VRMIBA |
|---|---|---|---|---|---|---|
| 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 Frequency | 266 MHz | 266 MHz | 266 MHz | 333 MHz (+25%) | 266 MHz | 266 MHz |
| Core Architecture | PowerPC G2_LE | PowerPC G2_LE | PowerPC G2_LE | PowerPC G2_LE | PowerPC G2_LE | PowerPC G2_LE |
| Ethernet MACs | Dual 10/100 | Dual 10/100 | Dual 10/100 | Dual 10/100 | Dual 10/100 | Dual 10/100 |
| Lifecycle Status | Last-time-buy | Last-time-buy | Active | Active | Last-time-buy | Last-time-buy |
| Supply Voltage | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | 0C to +70C (commercial) |
主要差異化特點
- Integrated communications engine on-die (對比MPC8248CVRMIBA)
- Last-time-buy status alerts designers to migration (對比MPC8272VRMIBA)
- Dual 10/100 Ethernet MACs integrated on-die (對比MPC8280VVQLDA)
設計說明
The 516-ball PBGA (27x27 mm) package requires an 8-layer or thicker PCB stack-up for signal integrity on the 60x-compatible system bus. BGA escape routing must use 0.8 mm pitch via-in-pad or dog-bone fanout. Match the manufacturer reference design's decoupling scheme - 100 nF X7R ceramic caps must be placed within 5 mm of each power ball group, with bulk 10 uF tantalum or polymer caps at the board edges. Reference: NXP MPC8248 hardware specifications design checklist.
The MPC8248CVRMIBA557 uses a multi-rail 1.8V/2.5V/3.3V supply scheme that requires sequenced power-up per the manufacturer reference design. Power-on reset (POR) timing is critical - assert HRESET until all rails are stable for at least 100 ms. Use a supervisor IC such as the TPS3307 to enforce rail sequencing. Reverse-voltage or out-of-sequence power-up can permanently damage the G2_LE core or cause latch-up in the I/O buffers. Estimated: sequencing window per datasheet is 100 ms minimum before HRESET deassertion.
The 516-PBGA package dissipates approximately 0.8 W at 266 MHz per the MPC8272 family reference. Theta_JA is typically 15-20 C/W with proper thermal via array under the exposed die pad. Place a 4x4 grid of 0.3 mm thermal vias on the BGA center pad to the inner ground layer. In enclosed industrial enclosures, derate ambient temperature by 10 C from the -40C to +85C rating to ensure junction stays below 100 C. Estimated: P = 0.8 W at 266 MHz, theta_JA = 18 C/W, so delta_T = 14.4 C above ambient.
Do not assume the 516-BGA land pattern is identical across the MPC8248/8272/8280 family - always cross-check the manufacturer's package diagram for ball A1 location and substrate pad diameter. When migrating legacy firmware, verify the CPM microcode revision matches between MPC8248 and MPC8272 - some ATM SAR microcode variants differ. The PCMCIA interface pins are multiplexed; confirm pull-up/pull-down requirements before assigning them to GPIO. Lastly, JTAG boundary scan requires a 14-pin header per IEEE 1149.1 - do not omit the TRST pull-down resistor.
合規資訊
RoHS compliant per LCSC product listing. Halogen-free status not confirmed in web data; REACH compliant per NXP product page. AEC-Q100 not applicable - this is an industrial/telecom MPU, not an automotive-grade part.