MPC8270VRMIBA - PowerQUICC II 266MHz MPU | NXP | Networking
MPN: MPC8270VRMIBA ✗ Tapus ng BuhayMPC8270VRMIBA Ulas
A communications processor is a specialized microprocessor that combines a general-purpose CPU core with hardware accelerators for telecom and networking protocols. The PowerQUICC II architecture belongs to the broader family of embedded microprocessors (MPU -> microprocessor -> microcontroller unit -> semiconductor device), optimized for deterministic real-time packet handling rather than pure compute.
Key features include 32 KB of on-chip cache memory, a core voltage range of 1.45 V to 1.6 V, I/O at 3.3 V, HiPerMOS7 0.13-micron silicon process technology, and an operating temperature range of 0 C to 105 C. The integrated communications engine offloads HDLC, ATM, and Ethernet framing from the host CPU, enabling line-rate throughput without software intervention.
The MPC8270VRMIBA uses a Harvard-style bus architecture with separate instruction and data paths feeding the CPM (Communications Processor Module), allowing simultaneous CPU compute and DMA-driven peripheral servicing. The 516-ball PBGA provides ample signal headroom for the 32-bit address/data bus, three Fast Ethernet MACs, USB 1.1, and a PCI 2.2 interface.
Typical applications include DSLAM line cards, wireless base station control plane, router/switch control, industrial control gateways, and T1/E1 aggregation equipment. The wide integration reduces BOM and board area compared with discrete CPU-plus-assp designs.
When designing with this part, ensure proper power sequencing of 1.5 V core and 3.3 V I/O rails and provide adequate decoupling to the PBGA's inner-row balls. The part has been flagged End of Life on NXP's product page, so design teams should validate longevity supply before committing to new programs.
This page synthesizes distributor pricing, same-family and cross-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Mga alternatibo na pwedeng ilagay na MPC8270VRMIBA — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok MPC8270VRMIBA (parehas na form factor at footprint) — pagkakaiba sa Process Technology, Package, Core Architecture, PCI Interface, RoHS Status.
MPC8270CVRMIBA
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MPC8270CZQMIBA
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MPC8270VVMIBA
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
MPC8250AVRIHBC
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MPC8250ACZQIHBC
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →MPC8270VRMIBA Mga Pinakamataas na Rating at Electrical Characteristics
| Core Architecture | PowerPC G2_LE, 32-bit |
| Core Frequency | 266 MHz |
| Series | PowerQUICC II (MPC82xx) |
| Number of Cores | 1 |
| On-Chip Cache | 32 KB |
| Core Voltage | 1.45 V to 1.6 V |
| I/O Voltage | 3.3 V |
| Process Technology | HiPerMOS7, 0.13 micron |
| Packhaging | 516-PBGA (27 x 27 mm) |
| Uri ng Pagpapasok | Surface Mount |
| Temperature na Operasyon | 0 C to 105 C |
| Integrated Peripherals | PCI, USB, HDLC, 10/100 Ethernet |
| Communications Module | CPM with multi-channel HDLC and ATM |
| PCI Interface | PCI 2.2 compliant |
| USB Interface | USB 1.1 (function or host with external PHY) |
| Ethernet MACs | Up to 3 x 10/100 Ethernet |
Gabay sa Pin Configuration ng MPC8270VRMIBA 516-pbga (27 x 27 mm)
Pin configuration para sa MPC8270VRMIBA (516-pbga (27 x 27 mm) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa MPC8270VRMIBA.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
MPC8270VRMIBA ay nararapat para sa 6 aplikasyons: DSLAM Line Card Aggregation, Wireless Base Station Control Plane, Enterprise Router/Switch Controller, Industrial Control Gateway, T1/E1 Aggregation Multiplexer, Network Appliance Storage Controller.
DSLAM Line Card Aggregation
The MPC8270VRMIBA is well suited for DSLAM line card aggregation because its CPM (Communications Processor Module) provides up to 128 HDLC channels and multi-channel ATM SAR in hardware. The 266 MHz PowerPC G2_LE core runs control-plane and management tasks while the CPM offloads per-channel DMA, sustaining DS3/E3 line rates. The 516-PBGA package integrates PCI 2.2 to the backplane ASIC plus three 10/100 Ethernet MACs for uplink trunking, eliminating external bridge chips.
Inirekomenda
Wireless Base Station Control Plane
In wireless base station control, the MPC8270VRMIBA manages Layer 2 protocols with hardware-accelerated HDLC/ATM while running RTOS and OAM tasks on the G2_LE core. The CPM offloads framer and scheduler work that an MCU cannot sustain at 155 MHz ATM rates, freeing the 266 MHz core for call processing and timing. Its 3.3 V I/O and 1.5 V core rails integrate cleanly with standard telecom power architectures (e.g., -48 V isolated supplies), and the PBGA thermal envelope supports 0 to 105 C operation in controlled indoor cabinets.
Inirekomenda
Enterprise Router/Switch Controller
For branch-office routers, the MPC8270VRMIBA provides routing control plus PCI-to-PCI bridging using its 32-bit PowerPC core, three Fast Ethernet MACs, and PCI 2.2 host bridge. The 266 MHz frequency sustains Cisco-style IOS-XE or Linux-based routing stacks with routing-table lookup offloaded to TCAM ASICs over the PCI bus. The integrated USB 1.1 host enables local diagnostics and configuration and the CPM HDLC handles legacy serial WAN uplinks.
Inirekomenda
Industrial Control Gateway
In factory automation gateways, the MPC8270VRMIBA bridges industrial fieldbuses to Ethernet using its trio of 10/100 MACs and HDLC channels for serial protocols (Modbus, Profibus over RS-485). The 516-PBGA industrial temperature variants support factory ambient, and the deterministic CPM latency handles real-time control messaging. Software stacks run on a hosted RTOS with Ethernet/IP and Profinet compatibility.
Inirekomenda
T1/E1 Aggregation Multiplexer
The MPC8270VRMIBA shines in T1/E1 multiplexers because its CPM provides per-channel HDLC with hardware AAL1/AAL2 segmentation, freeing the host CPU from bit-banging 24/32-channel TDM streams. The PowerPC G2_LE at 266 MHz runs management plane OAM and SNMP stacks while the CPM handles 256+ HDLC channels. Its 3.3 V I/O connects directly to standard line-interface units and T1/E1 framer ASICs over the 32-bit local bus.
Inirekomenda
Network Appliance Storage Controller
For small NAS appliances and iSCSI targets, the MPC8270VRMIBA runs the storage stack over its integrated PCI bus and three Ethernet MACs, while the CPM handles TCP/IP checksum offload and HDLC for replication links. The 32 KB on-chip cache sustains sequential read/write streams when paired with DDR-like SDRAM via external bridge, and the 516-PBGA package simplifies multi-layer PCB layout for fanless enclosures.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for MPC8270VRMIBA — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | MPC8270CVRMIBA | MPC8270CZQMIBA | MPC8270VVMIBA | MPC8250AVRIHBC | MPC8250ACZQIHBC |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 516-PBGA (27x27) | 516-PBGA (27x27) | 516-PBGA (27x27) | 516-PBGA (27x27) | PBGA (different size) | PBGA (different size) |
| Core | PowerPC G2_LE 266 MHz | PowerPC G2_LE 266 MHz | PowerPC G2_LE 266 MHz | PowerPC G2_LE 266 MHz | PowerPC G2_LE 200 MHz | PowerPC G2_LE 200 MHz |
| Core Voltage | 1.45 V to 1.6 V | 1.45 V to 1.6 V | 1.45 V to 1.6 V | 1.45 V to 1.6 V | 1.45 V to 1.6 V | 1.45 V to 1.6 V |
| Integrated Peripherals | PCI, USB, HDLC, 3x 10/100 MAC | Same | Same | Same | Subset | Subset |
| Operating Temperature | 0 C to 105 C | 0 C to 105 C | 0 C to 105 C | -40 C to 105 C (extended) | 0 C to 105 C | 0 C to 105 C |
| Lead-Free Designator | No (leaded R suffix) | No | Yes (Z designator) | No (extended temp) | No | Yes (Z designator) |
| Lifecycle Status | End of Life | End of Life | End of Life | End of Life | End of Life | End of Life |
Pangunahing mga Pagkakaiba
- True 266 MHz G2_LE core with hardware CPM offload (kumpara saMPC8250AVRIHBC)
- 516-PBGA (27 x 27) maximum I/O density for this family (kumpara saMPC8270CVRMIBA)
- Drop-in compatible with industrial temperature MPC8270VVMIBA (kumpara saMPC8270VVMIBA)
Talaan ng Disenyo
The MPC8270VRMIBA requires separate 1.5 V core (1.45 V to 1.6 V range) and 3.3 V I/O rails with sequencing: power the core before I/O to avoid latch-up. Place low-ESR ceramic decoupling (e.g., 22 uF bulk plus 0.1 uF high-frequency bypass) within 5 mm of every supply pin pair. According to the NXP hardware design guide for PowerQUICC II, a soft-start ramp of 1 ms prevents inrush on the host supply.
The 516-PBGA (27x27) has high thermal mass; follow JEDEC JESD51 test methodology and use the package's exposed thermal balls for a thermal via array into inner planes. Estimated: at ambient 70 C and 1.0 W dissipation (typical for 266 MHz active), junction-to-ambient theta_JA around 18 C/W results in roughly 18 C rise; verify against the silicon-specific thermal model in the datasheet before deployment in sealed enclosures.
Use a minimum 6-layer stack-up with continuous reference planes for the 32-bit local bus and DDR SDRAM connections. Place micro-vias-in-pad (8 mil laser vias) under the inner-row signal balls to break out the dense BGA pitch without dog-bone fanout. Per IPC-7093 BGA guidelines, return all high-speed signals within 2 layers of their reference plane to avoid crosstalk on the 100 MHz+ bus.
Do not assume the RMIBA suffix indicates lead-free - that 'C' (or 'Z') prefix is the lead-free/RoHS marker in the MPC8270 family. Mixing leaded and lead-free BGA balls on a single board violates JEDEC J-STD-020 reflow profiles. Always match the JTAG BSDL against the silicon revision before boundary-scan test during production bring-up.
Impormasyon ng Pagsunod sa Kautusan
Compliance statuses not in verified distributor data; the VRMIBA suffix denotes a leaded (non-RoHS) variant historically. For RoHS-only programs use the MPC8270CVRMIBA (no Z) or MPC8270CZQMIBA (lead-free Z designator) sibling parts.
