MPC860ENVR66D4 - 66MHz PowerQUICC MPU, 357-BBGA | NXP
MPN: MPC860ENVR66D4 ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $77.97 | $77.97 |
| 10 | $70.2 | $702.00 |
| 100 | $62.4 | $6,240.00 |
| 500 | $55.1 | $27,550.00 |
| 1,000 | $48.85 | $48,850.00 |
MPC860ENVR66D4 Overview
What is an MPU? A microprocessor unit (MPU) is the central processing IC of an embedded system - a CPU core + bus architecture + peripheral controllers integrated into a single silicon die. The MPC8xx family adds a hardware communications processor module (CPM) that offloads DMA-driven serial protocols (HDLC, Ethernet, UART, SCC/SMC channels) from the core, allowing deterministic I/O for telecom equipment. Within the taxonomy, the MPC860 sits at: PowerPC embedded MPU -> MPC8xx family -> PowerQUICC communications processors -> NXP legacy networking silicon.
Key features include 4 KB instruction cache, 4 KB data cache, an integrated memory management unit (MMU), dual 10/100 Mbps Ethernet MACs inside the CPM, four SCC channels, two SMC channels, an SPI port, an I2C port, and a general-purpose timer cascade. The device supports up to eight memory chip selects, 32-bit DRAM with page-mode operation, and PCMCIA interface logic for two card slots - a feature set rarely matched by modern MPUs.
The architecture combines a single-issue PowerPC integer core with the CPM on-chip peripheral engine. Code executes on the core while DMA-driven frame traffic is handled autonomously by the CPM, freeing the CPU for higher-layer protocol stacks. This dual-engine split is the historical strength of PowerQUICC: deterministic serial throughput without software intervention.
Typical applications include legacy Ethernet routers and DSLAM line cards, industrial serial-protocol concentrators, telecom control plane processors, factory-floor PLCs and protocol bridges, and avionics data concentrators. The wide operating temperature range and long-life NXP support made it a common choice in long-deployment industrial and military programs.
When designing around an EOL MPU, verify stock life expectancy at franchised distributors and lock the BOM with form-fit-function alternates. The MPC860ENVR66D4 footprint, bus timings, and register map are shared with the broader MPC860 family, easing substitution across speed grades.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for MPC860ENVR66D4 — 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 MPC860ENVR66D4 (same form factor and footprint) — differing in Package / Case, Processor Type, RoHS Status, Manufacturer, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPC860ENVR50D4
✅ Drop-In📋 Reference alternative (not in catalog)
MPC860ENVR80D4
✅ Drop-In✓ In Stock
$102.27 / Unit
View Datasheet →MPC860ENCVR66D4
✅ Drop-In📋 Reference alternative (not in catalog)
MPC860DTCZQ50D4
✅ Drop-In📋 Reference alternative (not in catalog)
MPC860TVR66D4
✅ Drop-In📋 Reference alternative (not in catalog)
MPC860ENVR66D4 Maximum Ratings & Electrical Characteristics
| Processor Type | MPC8xx PowerQUICC, 32-Bit |
| Core Architecture | PowerPC Embedded |
| Core Clock Speed | 66 MHz |
| Number of Cores | 1 |
| Operating Supply Voltage | 3.3 V |
| Package / Case | 357-PBGA (25x25 mm) |
| Mounting Type | Surface Mount |
| Instruction Cache | 4 KB |
| Data Cache | 4 KB |
| MMU | Yes (integrated) |
| Communications Processor Module (CPM) | Yes (SCC/SMC/SPI/I2C) |
| Ethernet MAC | Dual 10/100 Mbps (Fast Ethernet) |
| RoHS Status | Compliant |
| Lead Free | Yes |
| Packaging | Tray |
| Process Technology | 0.32 um CMOS |
MPC860ENVR66D4 357-pbga (25x25 mm) Pin Configuration Guide
Pin configuration for MPC860ENVR66D4 (357-pbga (25x25 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 MPC860ENVR66D4.
Refer to the datasheet for full pin configuration.
Typical Applications
MPC860ENVR66D4 is suitable for 6 applications: Legacy Ethernet Router Control Plane, Industrial Serial Protocol Concentrator, Telecom Control Plane Processor, Factory-Floor PLC and Protocol Bridge, Avionics Data Concentrator, Networked Medical Imaging Controller.
Legacy Ethernet Router Control Plane
The MPC860ENVR66D4's integrated dual 10/100 Mbps Ethernet MACs inside the Communications Processor Module (CPM) make it well-suited for legacy router and bridge control-plane designs. The CPM offloads DMA-driven frame traffic (HDLC, Ethernet, SCC channels) from the PowerPC core, delivering deterministic serial throughput without software intervention. At 66 MHz core clock with 4 KB instruction + 4 KB data caches, the MPU sustains routing-table lookups and forwarding-plane handshakes for low-port-count legacy routers. Its 32-bit DRAM controller with page-mode support and eight chip selects handle main memory and peripheral glue logic compactly, and the wide operating temperature range suits indoor telecom equipment. The 357-PBGA package keeps board area small while the 3.3 V single-rail supply simplifies power design. When modernizing, designers should consider NXP's current QorIQ Layerscape family for new platforms.
Recommended
Industrial Serial Protocol Concentrator
Industrial automation lines frequently depend on multi-channel serial concentrators that aggregate HDLC, UART, and bisync links from PLCs, sensors, and field instrumentation. The MPC860ENVR66D4's four SCC channels and two SMC channels, plus dedicated SPI and I2C ports, address this need without external serial controllers. The CPM can autonomously handle serial framing, CRC, and DMA, freeing the core for protocol translation. At 66 MHz the device keeps latency low for SCADA and Modbus TCP gateways. The integrated MMU plus 4 KB + 4 KB caches allow running a real-time OS such as VxWorks or Linux with deterministic interrupt response. The 357-PBGA package is suitable for industrial-grade board assembly, and 3.3 V single-supply operation eases power-tree design. For greenfield designs, evaluate newer NXP i.MX RT or Layerscape MPUs.
Recommended
Telecom Control Plane Processor
The MPC860ENVR66D4 was a workhorse of telecom control-plane designs - DSLAM line cards, base-station controllers, and SS7 signaling processors. Its PowerPC core plus CPM combination delivers the deterministic serial throughput required for T1/E1 framers, HDLC trunks, and SS7 message handling. At 66 MHz core clock it can manage thousands of calls per second when paired with appropriate firmware. The dual Ethernet MACs support redundant backhaul, while PCMCIA interface logic enables two card slots for line-card expansion. Wide memory address space and eight chip selects keep glue logic minimal. Modern replacements include QorIQ and Layerscape devices, but the MPC860ENVR66D4 still ships in long-life telecom programs. Verify supplier longevity before qualifying.
Recommended
Factory-Floor PLC and Protocol Bridge
On the factory floor, the MPC860ENVR66D4 serves as a programmable logic controller (PLC) CPU and protocol bridge converting between Profibus, Modbus, and Ethernet/IP. The CPM's SCC/SMC channels handle fieldbus traffic while the PowerPC core runs the ladder-logic interpreter and SCADA stack. At 66 MHz the MPU sustains scan times below 10 ms for typical I/O counts. The integrated MMU plus 4 KB + 4 KB caches allow protected RTOS execution, while the eight chip selects interface to SRAM, Flash, and FRAM without external logic. The 357-PBGA package supports rugged industrial assembly, and the 3.3 V rail simplifies UPS-backed power. For new factory automation, migrate to NXP i.MX 8M or Layerscape LS1021A.
Recommended
Avionics Data Concentrator
Avionics systems require long-life, deterministic MPUs qualified across wide temperature ranges. The MPC860ENVR66D4 has seen service in cockpit data concentrators aggregating ARINC 429, MIL-STD-1553, and discrete signals, with the CPM handling serial-frame DMA and the PowerPC core running display formatting and bus arbitration. At 66 MHz core clock it meets typical DO-178 software-level throughput targets. Wide operating temperature and ruggedized PBGA packaging support avionics environmental requirements. The integrated Ethernet MACs support modern flight-data network backbones. For new avionics programs, use NXP's safety-capable Layerscape and QorIQ families; the MPC860ENVR66D4 remains in service for legacy retrofit and repair only.
Recommended
Networked Medical Imaging Controller
Medical imaging subsystems such as legacy ultrasound carts and patient monitors use the MPC860ENVR66D4 as the embedded controller for image acquisition, storage, and DICOM/Ethernet transfer. At 66 MHz with 4 KB instruction + 4 KB data caches, the core drives the imaging pipeline while the CPM offloads DMA-driven ultrasound or sensor data capture. The integrated dual Ethernet MACs stream DICOM images to PACS archives, and the PCMCIA interface supports CompactFlash storage. Wide operating temperature and reliability of the 357-PBGA package suit clinical environments. The integrated MMU enables secure Linux-based medical stacks. For new medical designs, migrate to NXP i.MX 8M Plus or Layerscape families that offer modern security and AI accelerators.
Recommended
Recommended Products Summary
Engineering reference data for MPC860ENVR66D4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPC860ENVR50D4 | MPC860ENVR80D4 | MPC860ENCVR66D4 | MPC860DTCZQ50D4 | MPC860TVR66D4 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 357-PBGA (25x25 mm) | 357-PBGA (25x25 mm) - same | 357-PBGA (25x25 mm) - same | 357-PBGA (25x25 mm) - same | 357-PBGA (25x25 mm) - same | 357-PBGA (25x25 mm) - same |
| Core Clock Speed | 66 MHz | 50 MHz (-24%) | 80 MHz (+21%) | 66 MHz (identical) | 50 MHz (-24%) | 66 MHz (identical) |
| Architecture | PowerPC Embedded | PowerPC Embedded | PowerPC Embedded | PowerPC Embedded | PowerPC Embedded | PowerPC Embedded |
| Ethernet MAC | Dual 10/100 Mbps (EN) | Dual 10/100 Mbps (EN) | Dual 10/100 Mbps (EN) | Dual 10/100 Mbps (EN) | Single or Dual (DT variant) | Subset (T variant) |
| Instruction Cache | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB (DT variant) | 4 KB |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| RoHS Compliance | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
| Lifecycle Status | EOL / Last Time Buy | EOL / Last Time Buy | EOL / Last Time Buy | EOL / Last Time Buy | EOL / Last Time Buy | EOL / Last Time Buy |
Key Differentiators
- Mid-tier 66 MHz speed grade with Ethernet enabled (vs MPC860ENVR50D4)
- Lower power than higher-clock EN variant (vs MPC860ENVR80D4)
- Full EN Ethernet feature set (vs MPC860DTCZQ50D4)
Design Notes
The MPC860ENVR66D4 in 357-PBGA dissipates roughly 1.5 to 2.5 W typical at 66 MHz depending on CPM activity. The PBGA package's theta_JA is approximately 25 C/W with adequate board copper; for enclosed industrial enclosures, allocate at least 4 square inches of 1 oz copper under the package and add thermal vias to inner-plane copper. Estimated junction temperature rise at 2 W is ~50 C - verify against your worst-case ambient.
Place decoupling capacitors as close as possible to every VDD/VSS pin pair - 100 nF X7R on each pair plus 10 uF bulk capacitors around the package perimeter. The 357-PBGA requires via-in-pad or dog-bone fan-out with 0.2 mm trace width to escape the 1.27 mm ball pitch. Route the 32-bit DRAM bus with matched length (+/- 2 mm) and 50 ohm controlled impedance. Follow IPC-7351 land-pattern rules and NXP's PBGA layout guidelines.
Do not mix MPC860 speed grades (EN vs SR vs DT vs TC) without verifying the CPM and memory-controller register maps - feature subsets differ between suffixes even at the same 66 MHz clock. Confirm the part marking, package date code, and RoHS/lead-free status before soldering. Because the device is EOL, lock the BOM with form-fit-function alternates (MPC860ENVR50D4, MPC860ENVR80D4, MPC860ENCVR66D4) and qualify multiple distributors to mitigate supply risk.
Keep the 50 MHz system clock traces short and guarded with ground on both sides. The CPM's serial outputs (SCC/SMC) generate fast edges - place series-termination resistors close to the MPU balls if the trace length exceeds 25 mm. Maintain a continuous ground plane under the PBGA footprint to control impedance and provide return paths for high-speed signals. Avoid routing analog and digital signals across split planes.
Compliance Information
RoHS and lead-free confirmed by manufacturer datasheet. AEC-Q100 not applicable for MPU. REACH and conflict-minerals compliance per NXP environmental documentation. Halogen-free status not explicitly stated in the provided data.
