MPC8260ACZUMIBB - PowerQUICC II MPU 266MHz 480-TBGA | NXP
MPN: MPC8260ACZUMIBB ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $360.71 | $360.71 |
| 10 | $320 | $3,200.00 |
| 100 | $280 | $28,000.00 |
| 250 | $240 | $60,000.00 |
| 500 | $200 | $100,000.00 |
MPC8260ACZUMIBB Overview
A microprocessor (MPU) is a single-chip CPU that fetches, decodes, and executes instructions stored in external memory. The MPC82xx PowerQUICC II family belongs to the PowerPC microprocessor hierarchy, which itself descends from the Power architecture (POWER -> PowerPC -> PowerQUICC). Within an embedded system hierarchy, the MPU sits at the top of the SoC integration stack: MPU -> SoC/communications processor -> networking chipset -> telecom/networking equipment.
Key features include 266 MHz core frequency, an integrated CPM with multiple serial channels (FCC, MCC, SCC, SMC), 32-bit PowerPC G2 core with hardware multiply/accumulate, floating-point unit support, integrated memory controller for DRAM/SDRAM, and 1.8 V core / 3.3 V I/O dual-rail operation. The CPM offloads communications tasks from the core, enabling wire-speed processing on ATM, Ethernet, HDLC, and TDM interfaces.
Architecturally, the MPC8260 combines a PowerPC G2 core, dual-port system bus, and the CPM block connected via an internal 64-bit bus. The CPM includes a 32-bit RISC controller, DMA engines, and serial interface controllers, all running independently of the CPU. This heterogeneous architecture allows real-time protocol handling with low CPU overhead, making it well suited for high-availability routers, DSLAMs, and wireless base stations that need deterministic throughput.
Typical applications include telecommunications switching equipment, networking routers and bridges, ATM and SONET adapters, and industrial control platforms requiring deterministic serial communications. Its combination of integrated comms peripherals and PowerPC compatibility makes it ideal for legacy telecom infrastructure refreshes and long-lifecycle industrial designs.
When designing with this part, allocate decoupling capacitance close to each core/I/O voltage pin and provide a 25 MHz or 33 MHz system clock reference. Note that NXP has marked this part No Longer Manufactured - verify last-time-buy availability and consider the suggested replacement device listed on the manufacturer product page for new designs.
This page synthesizes authorized distributor inventory, drop-in alternatives from the same MPC82xx family, and lifecycle guidance not always found in the standalone datasheet, giving engineers a faster path to component selection and obsolescence planning.
Drop-in alternatives for MPC8260ACZUMIBB — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MPC8260ACZUMIBB (same form factor and footprint) — differing in Process Technology, Core Architecture, Series, Mounting Type, Manufacturer.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPC8260ACZUMHBB
✅ Drop-In✓ In Stock
$162.1 / Unit
View Datasheet →MPC8260AVVPJDC
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MPC8250AZUMHBC
✅ Drop-In📋 Reference alternative (not in catalog)
MPC8255AZUMHBB
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MPC8260ACZUMIBB Maximum Ratings & Electrical Characteristics
| Core Processor | PowerPC G2 |
| Architecture | RISC 32-bit |
| Number of Cores | 1 |
| Core Clock Speed | 266 MHz |
| Co-Processor / DSP | Communications; RISC CPM |
| RAM Controllers | DRAM, SDRAM |
| Graphics Acceleration | No |
| Display & Interface Controllers | None (per datasheet) |
| Supply Voltage - Core | 1.8 V |
| Supply Voltage - I/O | 3.3 V |
| Process Technology | 0.25 µm CMOS |
| Package | 480-TBGA (37.5 x 37.5 mm) |
| Mounting Type | Surface Mount |
| Part Status | Not For New Designs (No Longer Manufactured) |
MPC8260ACZUMIBB 480-tbga (37.5 x 37.5 mm) Pin Configuration Guide
Pin configuration for MPC8260ACZUMIBB (480-tbga (37.5 x 37.5 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MPC8260ACZUMIBB.
Refer to the datasheet for full pin configuration.
Typical Applications
MPC8260ACZUMIBB is suitable for 6 applications: Telecommunications Switching Equipment, Networking Routers and Bridges, ATM and SONET Adapters, Industrial Control with Deterministic Serial, Wireless Base Station Controllers, Embedded Long-Lifecycle Compute Platforms.
Telecommunications Switching Equipment
The MPC8260ACZUMIBB is purpose-built for telecom switching platforms that wire-speed route voice and data traffic through multiple serial interfaces. Its 266 MHz PowerPC G2 core runs control-plane protocols while the integrated CPM handles ATM, TDM, HDLC, and Ethernet traffic across three FCCs, two MCCs, four SCCs, and two SMCs - offloading protocol processing so the CPU is reserved for routing and call-control tasks. The 480-TBGA package supports the dense BGA layouts typical of central-office line cards and provides robust thermal performance at full load. Recommended companion ICs include external PHY devices (e.g., NXP MC68160 Ethernet transceiver) and TDM framers such as the IDT82V2604, which pair over the MPC8260's standard serial channels.
Recommended
Networking Routers and Bridges
In mid-range enterprise routers and bridges, the MPC8260ACZUMIBB's combination of a 32-bit PowerPC G2 core and on-chip memory controller makes it a compact routing engine. It interfaces directly with external SDRAM and supports 10/100 Ethernet MAC and T1/E1 framer connections through the CPM, eliminating the need for an external communications coprocessor. Compared with a discrete CPU+ASIC approach, integrating the CPM reduces BOM, board area, and software complexity - critical for cost-sensitive SMB routers. The 1.8 V core / 3.3 V I/O dual-rail power domain simplifies integration with common 3.3 V PHYs and 1.8 V DDR memory.
Recommended
ATM and SONET Adapters
ATM SAR (segmentation-and-reassembly) and SONET/SDH adapter cards benefit from the MPC8260ACZUMIBB's hardware ATM support and multi-channel HDLC controllers. The CPM performs AAL2/AAL5 processing at line rate without CPU intervention, while the PowerPC G2 core handles connection-management and signaling. The 480-pin TBGA footprint also lets designers route the high-density parallel bus required for 155 Mbit/s and 622 Mbit/s ATM/SONET PHY interconnect. Legacy and long-lifecycle carrier-grade systems continue to deploy this part for its deterministic throughput and NXP's extended reliability data.
Recommended
Industrial Control with Deterministic Serial
Industrial automation platforms that require deterministic multi-drop serial communication - such as programmable logic controllers (PLCs) and remote terminal units (RTUs) - can use the MPC8260ACZUMIBB as their communications controller. The CPM handles multiple UART, HDLC, and bisync channels in parallel, while the PowerPC G2 runs real-time control loops on the system side. The wide operating voltage tolerance and industrial temperature grades (per the orderable suffix) make this part suitable for factory-floor equipment. Compared with separate MCU + bridge chip implementations, the single-chip integration cuts board space and EMC noise sources.
Recommended
Wireless Base Station Controllers
GSM/UMTS base-station controllers and Node B baseband cards have historically used the MPC8260ACZUMIBB for the Layer-2/Layer-3 control plane. The CPM's HDLC channels terminate the Abis/Iub backhaul links, while the PowerPC G2 runs the radio-resource-management stack. The floating-point unit accelerates signal-processing computations such as channel coding and rate adaptation. For new carrier deployments, design longevity favors parts on NXP's suggested-replacement list, but the MPC8260ACZUMIBB remains in service in installed base stations in many markets.
Recommended
Embedded Long-Lifecycle Compute Platforms
Defense, aerospace, and railway electronic systems often require 10- to 25-year lifecycle support - segments where the MPC8260ACZUMIBB continues to find design-ins despite older process technology. The PowerQUICC II family has well-maintained VxWorks, Linux, and NetBSD BSPs, and the BGA package supports ruggedized PCB assemblies. Designers pair this MPU with industrial-temperature SDRAM and supervisory ICs such as the MAX706 to build fault-tolerant embedded compute nodes. Long-term availability for these systems is best secured via authorized-channel stocking agreements.
Recommended
Recommended Products Summary
Engineering reference data for MPC8260ACZUMIBB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPC8260ACZUMHBB | MPC8260AVVPJDC | MPC8250AZUMHBC |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 480-TBGA (37.5 x 37.5 mm) | 480-TBGA (37.5 x 37.5 mm) - same | 480-TBGA (37.5 x 37.5 mm) - same | 480-TBGA (37.5 x 37.5 mm) - same |
| Core Architecture | PowerPC G2, 32-bit RISC, 1 core | PowerPC G2, 32-bit RISC, 1 core - same | PowerPC G2, 32-bit RISC, 1 core - same | PowerPC G2, 32-bit RISC, 1 core - same |
| Core Clock Speed | 266 MHz | 266 MHz (same) | Up to 300 MHz (+13%) | Up to 266 MHz (same) |
| CPM Serial Controllers (FCC/MCC/SCC/SMC) | 3 FCC / 2 MCC / 4 SCC / 2 SMC | 3 FCC / 2 MCC / 4 SCC / 2 SMC - same | 3 FCC / 2 MCC / 4 SCC / 2 SMC - same family | 1 FCC / 0 MCC / 2 SCC / 1 SMC (-67%) |
| Floating-Point Unit | Yes | Yes | Yes | Yes |
| Core Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| I/O Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lifecycle Status | Obsolete (No Longer Manufactured) | Obsolete (No Longer Manufactured) | Obsolete (No Longer Manufactured) | Obsolete (No Longer Manufactured) |
Key Differentiators
- Industry-leading integrated CPM in a single-chip communications MPU (vs MPC8250AZUMHBC)
- Floating-point unit on-chip (vs MPC860 (predecessor))
- Same 480-TBGA package as family siblings (vs MPC8265AZUPJDC (PBGA variant))
Design Notes
Estimated: The MPC8260ACZUMIBB uses a dual-rail supply of 1.8 V core and 3.3 V I/O; power consumption scales roughly linearly with the 266 MHz core clock and CPM activity. Plan for at least 2 A of 1.8 V current and ~1 A of 3.3 V current at full CPM load, and place low-ESR bulk capacitors (>=220 µF) plus 0.1 µF + 10 nF ceramics within the BGA footprint. Sequence the rails within the datasheet-mandated window to avoid latch-up.
The 480-TBGA package is thermally enhanced with an exposed thermal-ball matrix; provide at least 4 thermal via arrays under the die and stitch vias to inner copper planes. Estimated: at 266 MHz with all CPM channels active, junction temperature may rise 15-25 °C above ambient with proper PCB thermal design. A heatsink is generally not required but airflow is recommended in enclosed chassis.
Use microstrip routing on at least 6 inner layers with matched impedance for the 64-bit system bus; serialize trace lengths to within 100 mil of each other across the byte lanes and the DDR/SDRAM address/command groups. Per NXP hardware design guidelines for PowerQUICC II, do not route high-speed edges over split power planes; use a continuous ground plane in the layer adjacent to BGA rows.
Firmware is not portable across MPC82xx speed grades without checking the CPM baud-rate generator dividers; bit fields differ across 8250/8255/8260 variants even at the same package. When migrating between same-package family members, re-validate the CPM configuration block, pin multiplexing, and JTAG/BDM initialization. Also confirm power-on-reset circuit timing matches the system clock reference in the new layout.
Compliance Information
Distributor listings and NXP product page do not include explicit RoHS/REACH declarations for this obsolete MPN; for new designs request a manufacturer compliance letter against the specific date code, otherwise treat as unknown per data authenticity rule 10.