MPC8248VRPIEA - PowerPC G2_LE 300MHz MPU | NXP PowerQUICC II
MPN: MPC8248VRPIEA ✗ Cuối đờiMPC8248VRPIEA Tóm tắt
A PowerQUICC II processor is a system-on-chip for cost-sensitive networking and communications equipment. It pairs a general-purpose PowerPC host CPU with dedicated RISC communications engines (CPM) that handle serial protocols, ATM, Ethernet MACs, and HDLC channels independently of the host. Within the broader hierarchy, the MPC8248 sits as MPU -> PowerPC -> Power Architecture -> embedded processor -> SoC. This split-architecture design eliminates the need for a separate network ASIC in routers, switches, and DSLAM line cards, allowing vendors to consolidate BOM cost and board area.
Key integrated features include a 32-bit PowerPC 603e core with MMU, dedicated RISC CPM for protocol termination, integrated SEC engine for DES/3DES/AES/SHA-1, dual 10/100 Ethernet MACs (FEC), a 32-bit/66-MHz PCI interface, USB 1.1 host/device, and a memory controller supporting SDRAM (up to PC133) and DRAM. The 516-ball TEPBGA package exposes the full address/data bus plus dedicated parallel I/O ports.
Typical applications include small/medium enterprise routers, integrated access devices, DSLAMs, industrial gateways, and wireline telecom line cards. For these workloads, the MPC8248's host + CPM architecture allows line-rate packet processing without starving the host CPU of cycles for management-plane software.
When designing, ensure thermal vias under the package and verify PCI bus timing against the 66-MHz specification. The SEC engine keys must be loaded via the device tree before IPsec sessions can be initialized.
Bộ thay thế dễ dàng lắp đặt cho MPC8248VRPIEA — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MPC8248VRPIEA (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Number of Cores, Mounting Type, Process Technology.
MPC8272VRPIEA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MPC8247VRPIEA
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPC8250VRPIEA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MPC8248CZPIEA
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MPC8255VRPIEA
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MPC8248VRPIEA Tỷ lệ tối đa & tính chất điện
| Core Processor | PowerPC G2_LE (603e-based) |
| Architecture | 32-bit Power Architecture |
| Tần số xung maksimum | 300 MHz |
| Number of Cores | 1 Core, 32-Bit |
| Co-Processors / DSP | Communications RISC CPM + Security SEC engine |
| RAM Controllers | DRAM, SDRAM (PC133) |
| Graphics Acceleration | No |
| Ethernet | Dual 10/100 Fast Ethernet MACs (FEC) |
| PCI Interface | 32-bit / 66 MHz |
| USB | USB 1.1 Host/Device |
| Điện áp cung cấp hoạt động | 3.3 V |
| Nhiệt độ hoạt động | 0 °C to +105 °C |
| Hộp | 516-pin TEPBGA (27 x 27 mm) |
| Process Technology | 0.13 µm (HiP7) |
Hướng dẫn cấu hình chân MPC8248VRPIEA 516-pin tepbga (27 x 27 mm)
Cấu hình chân cho MPC8248VRPIEA (516-pin tepbga (27 x 27 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho MPC8248VRPIEA.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MPC8248VRPIEA phù hợp cho 6 Áp dụngs: Small/Medium Enterprise Router, DSLAM Line Card Controller, Industrial Gateway / Protocol Converter, Wireless Base Station Controller, Network-Attached Storage (NAS) Head Controller, VoIP Media Gateway.
Small/Medium Enterprise Router
The MPC8248VRPIEA is a strong fit for SMB routers where a single SoC must terminate WAN protocols and run routing software concurrently. Its integrated CPM runs RISC firmware for PPPoE, HDLC, and ATM AAL5, leaving the 300 MHz PowerPC G2_LE host fully available for the routing/management plane (Linux or VxWorks). The integrated SEC engine provides DES/3DES/AES acceleration for IPsec VPNs at line rate on T1/E1 links. Dual 10/100 Ethernet MACs drive LAN-side switching without an external PHY controller, reducing BOM cost on a 4-port router.
Được đề xuất
DSLAM Line Card Controller
Inside a DSLAM line card, the MPC8248VRPIEA's CPM handles ATM TC cell processing and per-port AAL5 segmentation/reassembly without CPU intervention. The 300 MHz G2_LE core runs the line-card provisioning stack, and the integrated Fast Ethernet MACs backhaul aggregated traffic to the uplink. The 0-105 °C industrial temperature range accommodates the dense, fan-cooled DSLAM chassis without derating. Designers pair the part with an external xDSL transceiver such as a Broadcom or Conexant codec over the parallel IO.
Được đề xuất
Industrial Gateway / Protocol Converter
For industrial gateways translating Modbus/Profibus to Ethernet/IP, the MPC8248VRPIEA's RISC CPM is ideal because it offloads serial protocol bit-banging from the host CPU. The 300 MHz host runs the Web-based configuration UI, while the CPM runs deterministic serial frames in real time. The integrated SEC engine secures the Ethernet uplink via IPsec/TLS without off-chip crypto chips, and the PCI bus allows expansion to FPGA-based I/O cards for legacy fieldbus support.
Được đề xuất
Wireless Base Station Controller
Small-cell and pico-cell base station controllers use the MPC8248VRPIEA to terminate the Abis/Iub backhaul and translate to IP. The integrated Fast Ethernet MACs plus CPM-driven E1/T1 channels provide the necessary connectivity without an ASIC. The host core runs the Layer 2/Layer 3 stack and the embedded management agent. The part's 3.3 V single-supply operation and 27x27 mm TEPBGA allow integration in the tight mechanical envelope of pole-mount pico cells.
Được đề xuất
Network-Attached Storage (NAS) Head Controller
Entry-level NAS appliances use the MPC8248VRPIEA to run the embedded NAS OS (Linux/uClinux) on the 300 MHz G2_LE core, while the PCI bus connects to a SATA RAID controller for disk I/O. The integrated Fast Ethernet MACs drive LAN-side connectivity, and the SEC engine provides AES acceleration for encrypted volumes. The 27x27 mm TEPBGA package plus industrial temperature range suits a fanless home/SOHO NAS enclosure.
Được đề xuất
VoIP Media Gateway
In VoIP media gateways, the MPC8248VRPIEA's CPM offloads RTP packetization and TDM bus handling for T1/E1 PSTN trunks, freeing the host core for SIP signaling and echo-cancellation DSP. The integrated Ethernet MACs deliver VoIP packets to the IP backbone. The SEC engine secures SIP/TLS and SRTP media streams at line rate. The part's 0-105 °C range supports carrier-grade NEBS-compliant chassis.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MPC8248VRPIEA — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MPC8272VRPIEA | MPC8247VRPIEA | MPC8250VRPIEA | MPC8248CZPIEA | MPC8255VRPIEA |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors (formerly Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 516-pin TEPBGA (27x27 mm) | 516-pin TEPBGA (27x27 mm) | 516-pin TEPBGA (27x27 mm) | 516-pin TEPBGA (27x27 mm) | 516-pin TEPBGA (27x27 mm) | 516-pin TEPBGA (27x27 mm) |
| Host Core Clock | 300 MHz | 300 MHz | 300 MHz | 300 MHz | 266 MHz | 300 MHz |
| CPM Channel Count | Reference baseline (~10 channels) | Higher CPM count (+15%) | Lower CPM count (-20%) | Higher CPM count (+10%) | Same as MPC8248VRPIEA | Higher CPM count |
| SEC Engine | Integrated (DES/3DES/AES/SHA-1) | Upgraded SEC2 engine | Same SEC1 engine | Same SEC1 engine | Same SEC1 engine | Upgraded SEC2 engine |
| PCI Interface | 32-bit / 66 MHz | 32-bit / 66 MHz | 32-bit / 66 MHz | 32-bit / 66 MHz | 32-bit / 66 MHz | 32-bit / 66 MHz |
| Ethernet MACs | Dual 10/100 FEC | Dual 10/100 FEC | Dual 10/100 FEC | Dual 10/100 FEC | Dual 10/100 FEC | Dual 10/100 FEC |
| 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 |
| Lifecycle Status | Obsolete (Last Time Buy) | Obsolete (LTB) | Obsolete (LTB) | Obsolete (LTB) | Obsolete (LTB) | Obsolete (LTB) |
Bảo phân biệt quan trọng
- Higher CPM channel count within same 516-ball TEPBGA (vsMPC8247VRPIEA)
- Lower CPM throughput than successor but same package (vsMPC8272VRPIEA)
- Higher host-clock speed bin (vsMPC8248CZPIEA)
- More CPM channels than older siblings (vsMPC8250VRPIEA)
Ghi chú thiết kế
The 516-ball TEPBGA has a relatively high junction-to-ambient thermal resistance; in fanless router designs, place a thermal pad or heat spreader on the top of the BGA and ensure the PCB has at least 4 thermal vias directly beneath the central ball array. At maximum host+IO activity the die power can exceed 4 W, so verify with the PowerQUICC II thermal model.
Use microvia build-up PCB stack-up with BGA escape traces at 0.1 mm pitch escape rule out of the 27x27 mm package. Implement at least 4 power planes (3.3 V core, 3.3 V IO, GND, and one reserved) and place 0.1 µF + 0.01 µF decoupling caps within 5 mm of every power pin group. For the SDRAM interface matched-length routing is mandatory - run all clocks and strobes within 50 mils of the byte lane lengths.
Do not attempt to substitute a PowerQUICC III (MPC83xx) part for the MPC8248VRPIEA at the board level - the boot ROM, reset configuration word, and CPM register offsets all differ. Always verify the JTAG boundary-scan chain against the silicon revision documented in the errata document before committing to a board revision, because early MPC8248 silicon had PCI parity bugs corrected in newer mask sets.
Route the PCI bus as a 32-bit/66 MHz matched-impedance group with series damping resistors near the MPC8248 side. Keep CPM-driven serial TDM lines on inner layers adjacent to a solid GND plane to control EMI. The USB 1.1 differential pair requires 90-ohm differential impedance; if USB is unused, leave the DP/DM pins floating rather than grounding them, per the manufacturer reference manual.
Thông tin tuân thủ
The MPC8248VRPIEA was originally introduced by Freescale Semiconductor in 2004 per the verified data. RoHS, REACH, lead-free, and halogen-free status are not explicitly stated in the verified data and must be confirmed against the manufacturer datasheet addendum or a NXP compliance letter before RoHS-bound placement.
