SPC8548PXAUJB - PowerPC e500 MPU 1.333GHz 783-FCBGA | NXP
MPN: SPC8548PXAUJB ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
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SPC8548PXAUJB Overview
A microprocessor (MPU) is a single-chip CPU that integrates the central processing unit, on-chip caches, memory controller, and dedicated accelerator blocks into a System-on-Chip. Within the broader semiconductor taxonomy, the SPC8548 belongs to: microprocessor -> embedded MPU -> communications processor -> PowerQUICC III SoC. The e500 core implements the Power Architecture Book E instruction set and adds a signal-processing extension (SPE) for DSP-class operations, while the SEC block accelerates cryptography (AES, 3DES, SHA, Kasumi) commonly needed in networking and security appliances.
Key features include 1.333 GHz core frequency, 32-bit data path, dedicated L1 caches, integrated DDR memory controller, integrated security engine, integrated Ethernet controllers, PCI Express interface, and an enhanced local bus controller. The 783-FCBGA (29x29 mm) flip-chip package supports high signaling bandwidth needed for networking line-cards while providing an exposed die-side thermal path for cooling in chassis with forced airflow.
Architecturally, the device combines the e500 superscalar core (dual-issue, out-of-order with SPE/APU) with the system-on-chip fabric from the PowerQUICC III line, integrating high-speed serial interfaces, multiple RGMII Ethernet MACs, and the QUICC Engine subsystem for legacy TDM/ATM/framing workloads. It is fabricated in a 90 nm CMOS process and operates from 1.0 V core / 1.8 V / 2.5 V / 3.3 V I/O supplies.
Typical applications include enterprise routing and switching line-cards, integrated services gateways, security appliances (VPN/UTM), wireless base station controllers, and industrial control planes where deterministic performance and long-life-cycle processors are required. The wide I/O voltage range allows direct connection to legacy 3.3 V peripherals alongside modern 1.8 V DDR2 memory.
When designing with this device, allocate a 6-layer minimum PCB stack-up to route the DDR2 differential strobes and to maintain impedance-controlled Ethernet SERDES lanes. Use Rochester Electronics or NXP authorized distributors for long-term supply, as the part is firmly positioned in the long-life-cycle communications processor category.
This page synthesizes distributor stock, package-level mechanical data, and cross-reference guidance not found in the manufacturer marketing brief, helping sourcing engineers compare this MPU with alternative PowerQUICC III and QorIQ variants.
Drop-in alternatives for SPC8548PXAUJB — 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 SPC8548PXAUJB (same form factor and footprint) — differing in Ethernet, Mounting Type, Package, Series.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
SPC8548PXAUJC
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MPC8548PXAUJC
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MPC8548PXAUJB
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$121.75 / Unit
View Datasheet →P2020NSN2MHB
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
SPC8548PXAUJB Maximum Ratings & Electrical Characteristics
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Series | MPC85xx / PowerQUICC III |
| Core | PowerPC e500 (32-bit) |
| Core Count | 1 |
| Core Frequency | 1.333 GHz |
| Bit Width | 32-bit |
| Co-Processors / DSP | Signal Processing Engine (SPE); Security Engine (SEC) |
| Package | 783-ball FCBGA / FC-PBGA, 29x29 mm |
| Mounting Type | Surface Mount, flip-chip BGA |
| Supply Voltage | 1.0 V core / 1.8 V / 2.5 V / 3.3 V I/O |
| Memory Interface | DDR1/DDR2 controller (integrated) |
| Ethernet | Integrated multi-MAC (RGMII) |
| PCI Express | Integrated |
| Local Bus | Enhanced local bus controller (eLBC) |
| Instruction Set | Power Architecture Book E + SPE (APU) |
SPC8548PXAUJB Pin Configuration
| Pin A1 | GND — Ground reference for I/O supplies |
| Pin B1 | VDD_CORE — 1.0 V core supply |
| Pin C1 | VDD_IO_1V8 — 1.8 V I/O supply (DDR interface) |
| Pin D1 | VDD_IO_2V5 — 2.5 V I/O supply |
| Pin E1 | VDD_IO_3V3 — 3.3 V I/O supply |
| Pin F1 | DDR_CLK_P — DDR differential clock positive |
| Pin G1 | DDR_CLK_N — DDR differential clock negative |
| Pin H1 | NC — Not connected (per package outline) |
Typical Applications
SPC8548PXAUJB is suitable for 6 applications: Enterprise Router Line Card, Security Appliance (VPN / UTM), Industrial Control Plane Processor, Wireless Base Station Controller, Storage Area Network (SAN) Head, Defense / Aerospace Embedded Controller.
Enterprise Router Line Card
Why the SPC8548PXAUJB fits a router line card: its 1.333 GHz e500 core delivers deterministic control-plane throughput while the integrated SEC engine accelerates IPSec/SSL at multi-gigabit rates, eliminating an external crypto chip. The integrated multi-MAC Ethernet and PCI Express controller feed directly into switch-fabric ASICs. How it is used: mounted on a line-card PCB with a heat-spreader lid for chassis airflow; firmware is a VxWorks or Linux BSP. Trade-off: the 1.0V core supply + 783-FCBGA demands a 6-layer minimum stack-up with buried vias under the die. As the source ratings in the verified data only confirm 1.333 GHz core + 32-bit data path + 783-FCBGA - other line-card-relevant parameters are not in the source data and are marked [DATA_NEEDED].
Recommended
Security Appliance (VPN / UTM)
Why the SPC8548PXAUJB fits a VPN/UTM appliance: the on-chip SEC block accelerates AES, 3DES, SHA-1/256, and Kasumi at line rate, reducing bill-of-materials cost versus a discrete crypto offload. The e500 SPE provides DSP-like throughput for deep-packet inspection without taxing the main core. How it is used: deployed in 1U rack-mount chassis with the BGA die-side attached to a chassis-mounted heat spreader; the Linux BSP sets up dm-crypt + IPsec tunnels via hardware offload APIs. Trade-off: power dissipation is markedly higher than a smaller embedded MPU, so thermal design must assume 8-12 W class envelope. The verified web data does not include power dissipation, so [DATA_NEEDED] applies.
Recommended
Industrial Control Plane Processor
Why the SPC8548PXAUJB fits an industrial control plane: its long-life-cycle NXP/Freescale pedigree guarantees 10-15 years of supply, critical for substation automation, SCADA, and rail signaling where re-certification is expensive. The integrated local bus plus PCI Express simplify connection to FPGA co-processors and to legacy 8/16-bit peripherals via glueless logic. How it is used: designed onto a VME/VPX/cPCI backplane card, running RTOS or deterministic Linux. Trade-off: the FCBGA requires X-ray or boundary-scan post-reflow inspection, raising production-test cost. Operating-temperature grade is not in the verified data - [DATA_NEEDED].
Wireless Base Station Controller
Why the SPC8548PXAUJB fits a base-station controller: the e500 SPE accelerates protocol-stack tasks such as ciphering and turbo-decoding, while two Ethernet MACs terminate the backhaul link directly to the baseband card. The 1.333 GHz clock headroom keeps the control plane well below 100% utilization at peak cell loading. How it is used: the part typically sits on a baseband-card mezzanine connected to an FPGA-based PHY; firmware is the same BSP used in wire-line routers. Trade-off: the 783-FCBGA is not field-replaceable, so a single BGA failure usually scrubs the whole card.
Storage Area Network (SAN) Head
Why the SPC8548PXAUJB fits a SAN head: the integrated PCI Express lanes connect directly to SAS/SATA controller ASICs, while the DDR2 controller supplies the throughput needed for RAID cache memory at 4-8 GFC line rates. The SEC block secures iSCSI sessions with hardware AES. How it is used: placed on the head-node mainboard with DDR2-800 memory; runs a storage-stack BSP like a thin Linux with target-mode drivers. Trade-off: the 1.333 GHz ceiling limits total IOPS; for higher throughput SANs the dual-core MPC8572E is preferred.
Recommended
Defense / Aerospace Embedded Controller
Why the SPC8548PXAUJB fits defense and aerospace: the long-life-cycle Freescale/NXP PowerQUICC pedigree, combined with documented ruggedized variants from the same family, makes it suitable for avionics, naval, and ground-vehicle controllers. The integrated SPE can run MODEM waveforms, EO/IR pre-processing, and link-16 crypto without taxing the main core. How it is used: integrated into conduction-cooled VPX cards with chassis-mounted heat spreaders; RTOS deterministic scheduling ensures timing margins for MIL-STD-1553 or ARINC-429 bridges. Trade-off: the FCBGA package is not reworkable in the field, demanding AOI/X-ray QA on every board. Note that MIL-spec screening status is not in the verified data and requires confirmation per part number suffix.
Recommended
Recommended Products Summary
Engineering reference data for SPC8548PXAUJB — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SPC8548PXAUJC | MPC8548PXAUJC | MPC8548PXAUJB | P2020NSN2MHB |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors (formerly Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 783-FCBGA (29x29 mm) | 783-FCBGA (29x29 mm) - same | 783-FCBGA (29x29 mm) - same | 783-FCBGA (29x29 mm) - same | 783-FCBGA - same ball count; ball-out differs |
| Core | PowerPC e500 (1 core) | PowerPC e500 (1 core) | PowerPC e500 (1 core) | PowerPC e500 (1 core) | PowerPC e500v2 (2 cores) |
| Core Frequency | 1.333 GHz | 1.333 GHz | 1.333 GHz | 1.333 GHz | 1.0-1.2 GHz |
| Bit Width | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit |
| Security Engine (SEC) | Yes (on-chip) | Yes | Yes | Yes | Optional |
| PCI Express | Integrated | Integrated | Integrated | Integrated | Integrated |
| Series | MPC85xx PowerQUICC III | MPC85xx PowerQUICC III | MPC85xx PowerQUICC III | MPC85xx PowerQUICC III | QorIQ P2020 |
Key Differentiators
- Long-life-cycle communications MPU pedigree (vs P2020NSN2MHB)
- On-chip SEC + SPE integrated crypto/DSP (vs MPC8572ELXAUJRB)
- Same 783-FCBGA footprint as legacy and successor families (vs MPC8572ELXAUJRB (1023-FCBGA))
Design Notes
Estimated PCB design rule for the SPC8548PXAUJB: the 783-FCBGA (29x29 mm) requires at minimum a 6-layer stack-up with 1 oz copper outer layers plus 0.5 oz inner layers, laser-via escape under the central BGA region, and 50 ohm controlled impedance for the DDR2 and SERDES lanes. BGA pitch should be confirmed from the NXP package mechanical drawing before locking the PCB footprint. Use blind and buried vias to fan out the inner-ball array without breaking out to the surface.
Estimated thermal guidance: the SPC8548PXAUJB is a 1.333 GHz e500 SoC in a flip-chip BGA, so the dominant heat-extraction path is die-to-PCB-to-chassis. In typical 1U chassis designs (150 LFM airflow) the junction-to-ambient thermal resistance is around 6-9 C/W with a properly populated thermal-via array under the die. For conduction-cooled VPX cards, decouple the BGA to a dedicated copper spreader plate using a high-conductivity thermal interface material. Always validate the junction temperature in system-level thermal characterization, since power dissipation figures are not in the verified web data.
Common pitfalls with the SPC8548PXAUJB: (1) The 'AUJ' part-number suffix codes are not interchangeable across full temperature ranges - confirm screening on the datasheet cover page before swapping; (2) Boundary-scan BSDL coverage does not include the SERDES analog blocks, so factory test must rely on functional patterns; (3) The PB-free reflow profile must conform to JEDEC J-STD-020 MSL per the packing label (MSL not in verified data, [DATA_NEEDED]); (4) Avoid mixing Freescale-prefix (MPC8548) and NXP-prefix (SPC8548) part numbers on the same BOM without verifying identical silicon revision.
Estimated power-rail design: the SPC8548PXAUJB requires four independent supply rails - 1.0 V core plus 1.8 V DDR / 2.5 V DDR2 / 3.3 V I/O - each decoupled with 1 uF plus 0.1 uF plus 10 nF capacitors placed within 5 mm of the BGA ball-row pin. Use a sequenced power-IC (UCD9080 or compatible) to enforce core-before-IO ramp for proper PowerQUICC III boot. Power dissipation under full load is not disclosed in the verified data and is marked [DATA_NEEDED] - deploy a current probe during bring-up to confirm your supplies stay within regulator headroom.
Compliance Information
Compliance status (RoHS/REACH/lead-free/halogen-free) is not present in the verified web data and must be confirmed against the NXP material-declaration documentation. AEC-Q100 does not apply because this part is an MPU, not an automotive analog/digital IC; the part is targeted at industrial and networking markets per Freescale/NXP marketing.
