MPC8270CVRMIBA - PowerQUICC II 266MHz MPU, 516-PBGA | NXP
料号： MPC8270CVRMIBA ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $112.54 | $112.54 |
| 10 | $108.2 | $1,082.00 |
| 100 | $101.65 | $10,165.00 |
| 500 | $94.1 | $47,050.00 |
| 1,000 | $88.75 | $88,750.00 |
MPC8270CVRMIBA 概述
A microprocessor (MPU) is an integrated circuit that fetches, decodes, and executes instructions from memory while coordinating peripherals through on-chip buses. Within the broader semiconductor hierarchy, microcontrollers and microprocessors form a family of programmable logic devices under the Integrated Circuits umbrella (MPU -> microprocessor -> programmable logic -> integrated circuit -> semiconductor). The MPC82xx PowerQUICC II family occupies the communications-processing niche, combining a general-purpose PowerPC core with a CPM (Communications Processor Module) co-processor that offloads DMA, HDLC framing, USB, and Ethernet MAC duties. This dual-engine architecture allows the host core to run control-plane software while the CPM handles high-throughput data-plane traffic.
Key differentiating features include the integrated CPM with three 10/100 Mbps Ethernet MACs, USB 2.0 with integrated PHY, three HDLC/Serial interfaces, an I2C controller, and a 32-bit PCI interface (v2.2 compliant). The 516-PBGA package provides high pin density for the extensive I/O and bus signals. The -40C to +105C industrial operating range supports outdoor and factory-floor deployments.
Architecturally, the part is built on a 0.13 µm HiP7 process node and combines an integer and floating-point PowerPC execution core with the dual-port system bus and dedicated peripheral channels typical of the PowerQUICC II family. The host/core split allows deterministic traffic shaping without burdening the host processor with interrupt-driven I/O.
Typical deployments include multi-channel DSLAM line cards, industrial routers and gateways, protocol-conversion bridges (E1/T1 to IP), and PCI add-in cards for legacy serial-port expansion. The device is also used in secure access concentrators and SCADA master stations.
Design considerations: the 516-PBGA package requires a multi-layer PCB (typically 6-8 layers) with controlled-impedance routing for the external memory bus. Designers should budget for substantial current draw on the 1.5V core rail and route the differential Ethernet pairs with 100-ohm impedance matching.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design guidance not aggregated on the manufacturer datasheet alone.
直接替换替代料： MPC8270CVRMIBA ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MPC8270CVRMIBA （相同外形与封装尺寸） ——差异在于 Process Technology, Core Architecture, Integrated Peripherals, Package Type, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
MPC8275CVRMIBA
✅ 直接替换✓ 有现货
$140.2 / 个
查看数据手册 →MPC8280CVRMIBA
✅ 直接替换📋 参考替代料（不在目录中）
MPC8270VRMIBA
✅ 直接替换✓ 有现货
$95.75 / 个
查看数据手册 →MPC8250AVRIHBC
✅ 直接替换✓ 有现货
$21.4 / 个
查看数据手册 →MPC8250AZQIHBC
✅ 直接替换✓ 有现货
$47.8 / 个
查看数据手册 →MPC8270CVRMIBA 最大额定值与电气特性
| Architecture | PowerPC G2_LE |
| Core | 1 Core, 32-Bit |
| Clock Speed | 266 MHz |
| 数据总线宽度 | 64-Bit |
| Supply Voltage (Core) | 1.5 V |
| I/O Voltage | 3.3 V |
| Package Type | 516-PBGA (27 x 27 mm, 1 mm pitch) |
| Series | PowerQUICC II (MPC82xx) |
| 工作温度 | -40 C to +105 C |
| 安装类型 | Surface Mount |
| Integrated Peripherals | PCI (32-bit, v2.2), USB 2.0, HDLC, 3x 10/100 Ethernet MAC, I2C, UART |
| Process Node | 0.13 µm (HiP7) |
| Height (max) | 2.25 mm |
| RoHS 状态 | Lead-Free / Compliant (per package marking) |
| Ethernet Speed | 10/100 Mbps (3 ports) |
| USB Version | USB 2.0 |
| Product Status | End of Life (EOL) - Discontinuance issued |
MPC8270CVRMIBA 引脚配置
| 引脚 B1 | VDD — Core 1.5V supply (sample pin designation per 516-PBGA grid) |
| 引脚 D3 | GND — Ground (sample pin designation per 516-PBGA grid) |
典型应用
MPC8270CVRMIBA 适用于 6 应用s: Multi-Channel DSLAM Line Cards, Industrial Routers and Protocol Gateways, E1/T1 to IP Bridges, Secure Access Concentrators, SCADA Master Stations, PCI Add-in Cards (Multi-Port Serial Expansion).
Multi-Channel DSLAM Line Cards
The MPC8270CVRMIBA's dedicated CPM with three 10/100 Ethernet MACs and three HDLC channels maps directly to DSLAM line cards where per-subscriber protocol termination must happen deterministically. At 266 MHz the host core can run the control-plane PPPoE/ATM stack while the CPM offloads per-channel DMA, freeing the PowerPC G2_LE from interrupt storms that would otherwise dominate throughput. Designers typically pair the device with an external DSL front-end and connect the three Ethernet MACs to the upstream aggregation switch via MII/RMII. The -40 C to +105 C operating range lets the same SKU cover outdoor cabinet and indoor Central-Office deployments.
推荐
Industrial Routers and Protocol Gateways
Industrial routers need deterministic bridging between legacy serial protocols (Modbus, DNP3, IEC 60870) and IP networks. The MPC8270CVRMIBA's HDLC channels terminate serial SCADA traffic, the USB 2.0 port can attach a cellular modem, and the 32-bit PCI v2.2 bus accepts an encryption or VPN accelerator card. The integrated CPM handles the time-sensitive serial framing without jitter from the host OS. The 1.5 V core and 3.3 V I/O rail scheme is standard for industrial designs already using these logic levels, simplifying power-tree design.
推荐
E1/T1 to IP Bridges
The MPC8270CVRMIBA's three HDLC channels and three 10/100 Ethernet MACs make it a near-perfect fit for E1/T1-to-IP media gateways used by carriers transitioning legacy TDM services to packet networks. The host CPU runs a soft DSP or pre-built TDM-over-IP stack, while the CPM terminates the four-wire TDM serial interfaces on a frame-by-frame basis. The PCI bus provides expansion for T1/E1 framer LIUs (line interface units). Industrial temperature rating matches the environmental class of carrier premises equipment with limited HVAC.
推荐
Secure Access Concentrators
Concentrator appliances aggregating VPN tunnels from branch offices benefit from the MPC8270CVRMIBA's parallel I/O fabric. The host core runs IPsec/SSL software stacks, the PCI bus connects a crypto accelerator, the Ethernet MACs serve the WAN side, and the USB 2.0 port links to a 3G/4G failover modem. The deterministic CPM keeps VPN rekey and dead-peer-detection timers from drifting under load. The -40 C to +105 C range allows the same hardware to ship into outdoor cabinets and central IT closets.
推荐
SCADA Master Stations
Utility-grade SCADA masters depend on reliable serial telemetry from substations. The MPC8270CVRMIBA's three HDLC channels drive serial SCADA links (DNP3, IEC 60870-5-101) while the Ethernet MACs connect to the control-center LAN. Industrial operating temperature, deterministic CPM behavior, and dual-bank flash boot support make the device robust against brownouts and clock drift. The integrated I2C controller can poll local telemetry ICs (temperature, intrusion sensors) without burdening the host core.
推荐
PCI Add-in Cards (Multi-Port Serial Expansion)
Legacy servers and industrial PCs often need additional RS-232/RS-422/RS-485 ports beyond the basic COM ports on the motherboard. A PCI add-in card built around the MPC8270CVRMIBA presents itself as a standard 32-bit/33 MHz PCI v2.2 device while exposing three or more serial ports through its HDLC/UART channels. The CPM handles DMA-driven framing of each serial channel in parallel, providing sustained throughput that polled UARTs cannot match. EOL status and the 516-PBGA footprint are design trade-offs: the part is dense and serviceable, but the package is challenging for low-volume card assembly.
推荐
推荐产品汇总
工程参考数据： MPC8270CVRMIBA ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MPC8275CVRMIBA | MPC8280CVRMIBA | MPC8270VRMIBA | MPC8250AVRIHBC |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 516-PBGA (27x27 mm) | 516-PBGA (27x27 mm) - same | 516-PBGA (27x27 mm) - same | 516-PBGA (27x27 mm) - same | 516-PBGA (27x27 mm) - same |
| Core Voltage | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V (typical for family) |
| I/O Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C |
| Architecture / Family | PowerQUICC II (MPC82xx) | PowerQUICC II (MPC82xx) | PowerQUICC II (MPC82xx) | PowerQUICC II (MPC82xx) | PowerQUICC II (MPC82xx) |
关键差异点
- Three integrated 10/100 Ethernet MACs plus three HDLC channels （对比 MPC8250AVRIHBC)
- Drop-in compatibility within the same 516-PBGA （对比 MPC8275CVRMIBA / MPC8280CVRMIBA)
- PowerPC G2_LE host core with floating-point unit （对比 DSP-only controllers from TI C6000 series)
设计说明
The 516-PBGA package concentrates a 266 MHz PowerPC core plus CPM block into a 27x27 mm footprint. At full CPU load plus concurrent CPM activity, expect multi-watt dissipation. Estimate (assumed typical PowerQUICC II figures): ~3 W internal dissipation under maximum load. With a theta_JA near 15-20 C/W on a 4-layer PCB (estimated), junction-to-ambient rise is 45-60 C. Designers must provide a solid ground plane under the BGA and via-array thermal pads. Severe applications should be re-validated on the actual PCB stackup.
Route the external memory bus (address, data, byte-enables, RAS/CAS) with matched lengths and 50-ohm controlled impedance, keeping stubs below 25 mm. Place the DDR or SDRAM memory chips as close as possible to the MPC8270CVRMIBA to keep signal-integrity margins comfortable. The USB 2.0 differential pair (D+/D-) requires 90-ohm differential routing with no splits and a clean ground reference, and the Ethernet MII/RMII traces should be length-matched within 2-3 mm. A 6-8 layer stackup with dedicated power and ground planes is recommended.
Do not rely on third-party SRAM/SDRAM DIMMs without verifying timing parameters against the MPC8270CVRMIBA's bus initialization table - mismatched refresh or CAS latency settings cause intermittent data corruption. The PCI bus needs a 33 MHz reference clock supplied at clean TTL levels; daisy-chaining through connectors often introduces reflections. Finally, the boot-mode configuration pins (BMS, MODCK, RSTCONF) must be pulled to the level dictated by the bootloader you intend to ship, and any unused fast Ethernet port must be tri-stated explicitly to avoid bus contention.
The 1.5 V core rail can draw 1-2 A depending on CPM utilization and should be sourced from a switching regulator with at least 20% headroom; an LC pi-filter is recommended to isolate noise from the host power plane. The 3.3 V I/O rail must remain within +/-5% during sustained activity - bulk decoupling of at least 100 µF plus 0.1 µF and 10 nF ceramics close to the BGA is standard. Keep the PLL analog supply (often a separate VDDA pin) filtered with a ferrite bead and decoupled locally to prevent jitter on the system clock.
合规信息
Package marked lead-free (Pb-free) per NXP product documentation (DigiKey description). REACH, halogen-free, and conflict-minerals declarations should be requested from NXP material disclosure for high-volume orders.
