KMPC8379CVRALG - PowerPC e300c4s MPU 667MHz 689-TEPBGA II | NXP
MPN: KMPC8379CVRALG ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $54.51 | $54.51 |
| 10 | $49.2 | $492.00 |
| 100 | $44.85 | $4,485.00 |
| 500 | $40.1 | $20,050.00 |
| 1,000 | $36.95 | $36,950.00 |
KMPC8379CVRALG Overview
A microprocessor (MPU) is the central processing unit of an embedded system, executing instruction fetch, decode, and execution cycles while coordinating peripherals through memory-mapped registers and on-chip buses. Within the broader hierarchy, the KMPC8379CVRALG sits as a Power Architecture CPU -> embedded MPU -> SoC-class networking processor, a class used widely in routers, switches, networked storage, and industrial control where deterministic performance and integrated peripherals reduce total system BOM. Unlike a microcontroller, an MPU typically relies on external DRAM and operates at higher clock rates with a memory management unit.
Key features of the KMPC8379CVRALG include the e300c4s core with dual-issue integer pipeline, hardware floating-point support, DDR/DDR2 memory controller with ECC, integrated Gigabit Ethernet MAC for high-throughput networking, and PCI Express and PCI interfaces for expansion. The 689-TEPBGA II package provides a generous 31x31 mm substrate, enabling dense breakout to multi-layer PCBs while supporting the high I/O count required for parallel memory and serial interface fan-out. The 90 nm CMOS process balances leakage and performance for thermally constrained embedded enclosures.
At 667 MHz the device delivers deterministic throughput for control-plane and data-plane tasks in wired networking and industrial automation. Its on-chip peripherals reduce the need for external glue logic, allowing single-board designs in space-limited networking appliances. The architecture is software-compatible with the wider PowerPC e300 ecosystem, preserving firmware investment across MPC83xx, MPC85xx, and QorIQ migrations.
Typical applications for the KMPC8379CVRALG include enterprise routers and switches, network attached storage (NAS), industrial gateways with dual Ethernet, and secure access controllers. When designing with this device, allocate adequate copper area beneath the TEPBGA to dissipate core power and follow NXP's design checklist for DDR2 signal integrity, including matched length traces, reference planes, and VTT termination for the address/command bus.
Drop-in alternatives for KMPC8379CVRALG — 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 KMPC8379CVRALG (same form factor and footprint) — differing in Ethernet, Package, Process Technology, Series.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MPC8379CVRAFG
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MPC8377CVRALG
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$29.53 / Unit
View Datasheet →MPC8378CVRAG
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
KMPC8379CVRALG Maximum Ratings & Electrical Characteristics
| Core Processor | PowerPC e300c4s |
| Number of Cores | 1 |
| Core Width | 32-bit |
| Clock Speed | 667 MHz |
| RAM Controllers | DDR, DDR2 |
| Ethernet | 10/100/1000 Mbps |
| Graphics Acceleration | No |
| Process Technology | 90 nm |
| Supply Voltage | 1.8 V / 2.5 V / 3.3 V |
| Package | 689-TEPBGA II (31x31 mm) |
| Series | MPC83xx |
| Number of Pins | 689 |
| Mounting Type | Surface Mount |
| Encryption | Not enabled (W/O ENCR) |
| Lead-Free | Yes (NO-PB) |
| Part Status | Obsolete |
KMPC8379CVRALG 689-tepbga ii (31x31 mm) Pin Configuration Guide
Pin configuration for KMPC8379CVRALG (689-tepbga ii (31x31 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 KMPC8379CVRALG.
Refer to the datasheet for full pin configuration.
Typical Applications
KMPC8379CVRALG is suitable for 6 applications: Enterprise Router Control Plane, Network Attached Storage Controller, Industrial Ethernet Gateway, Secure Access Controller / Firewall, Wireless Base Station Controller, Single-Board Computer / Embedded Linux Platform.
Enterprise Router Control Plane
The KMPC8379CVRALG fits enterprise router control-plane workloads because its e300c4s core at 667 MHz provides deterministic integer and floating-point performance for routing-protocol processing, while the integrated Gigabit Ethernet MAC and DDR2 controller with ECC maintain packet table integrity under sustained load. Unlike a host CPU, this MPU runs control-plane firmware (Linux, VxWorks) with predictable interrupt latency, and its 689-TEPBGA II provides the I/O density required for multi-port Ethernet fan-out. Using this part reduces BOM by eliminating an external memory controller and software bridges.
Recommended
Network Attached Storage Controller
NAS controller boards leverage the KMPC8379CVRALG because the e300c4s core runs file-system stacks (ext4, XFS) and RAID managers at 667 MHz, while the dual Gigabit Ethernet supports link aggregation to clients. The integrated DDR2 with ECC ensures reliable write-back caching, and the PCI Express / PCI controllers host SATA or SAS controllers for multi-drive enclosures. The 689-ball TEPBGA provides the routing area needed for multi-port storage fan-out, and is software-compatible with NXP's later QorIQ NAS reference designs for customers planning a migration.
Recommended
Industrial Ethernet Gateway
Industrial gateways (PROFINET, EtherNet/IP) use the KMPC8379CVRALG because the 667 MHz e300c4s with hardware floating-point executes real-time protocol conversions deterministically, and the 1.8 V / 2.5 V / 3.3 V supply rails simplify power design alongside industrial 24 V-to-DC backplanes. The dual Gigabit Ethernet supports two physically separated subnets (plant vs. management), and the 689-TEPBGA II withstands extended industrial temperature grades with proper PCB thermal design. The MPU runs RTOS or Linux PREEMPT-RT to guarantee cycle-accurate handling.
Recommended
Secure Access Controller / Firewall
Access controllers and SMB firewalls apply the KMPC8379CVRALG when encryption is handled in software (the K-prefix variant ships without the SEC engine), reserving the 667 MHz core for packet classification, connection tracking, and policy enforcement. The integrated DDR2 with ECC protects rule tables and connection state under sustained denial-of-service pressure, and the BGA package's high I/O count allows direct attachment of multiple Gigabit PHYs. Customers later add the encryption-enabled -AFG suffix variant for hardware-accelerated IPsec.
Recommended
Wireless Base Station Controller
Wireless base-station controllers use the KMPC8379CVRALG because the e300c4s at 667 MHz executes MAC-layer scheduling, RLC, and OAM protocol stacks with deterministic latency, while the DDR2 controller with ECC supports high-bandwidth baseband data buffering. The integrated Ethernet MAC links to baseband and backhaul interfaces via external PHYs, and the 689-TEPBGA II's wide pin pitch improves signal integrity across multi-layer boards. Software compatibility with QorIQ P1 simplifies migration when a design is upgraded to LTE or 5G small-cell workloads.
Recommended
Single-Board Computer / Embedded Linux Platform
Single-board computers and Linux development platforms use the KMPC8379CVRALG because the e300c4s supports standard mainstream Linux (2.6.18 LTS through 4.x PowerPC kernels), and the 667 MHz speed is sufficient for compute headroom in instrumentation, test, and Linux-based control. The DDR2 controller maintains stable boot-time behaviour, and PCI/PCIe expansion enables modular I/O daughter cards. The 689-TEPBGA II is typically mounted on a development carrier board with debug (JTAG) and serial console headers for embedded engineers.
Recommended
Recommended Products Summary
Engineering reference data for KMPC8379CVRALG — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MPC8379CVRAFG | MPC8377CVRALG | MPC8378CVRAG |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 689-TEPBGA II (31x31) | 689-TEPBGA II (31x31) - same | 689-TEPBGA II (31x31) - same | 689-TEPBGA II (31x31) - same |
| Core | PowerPC e300c4s | PowerPC e300c4s | PowerPC e300c4s | PowerPC e300c4s |
| Clock Speed | 667 MHz | 667 MHz | 533 MHz | 400 MHz |
| Encryption (SEC) | Not enabled | Enabled | Not enabled | Not enabled |
| RAM Controller | DDR / DDR2 | DDR / DDR2 | DDR / DDR2 | DDR / DDR2 |
| Ethernet | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps |
| Process | 90 nm | 90 nm | 90 nm | 90 nm |
| Lifecycle | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Encryption-disabled (W/O ENCR) for software-only security (vs MPC8379CVRAFG)
- Maximum 667 MHz core in this BGA generation (vs MPC8377CVRALG)
- Integrated Gigabit Ethernet and DDR2 controller (vs Discrete MPU + external bridge)
Design Notes
Estimated: at typical 1.0 V core and 2.0 W at 667 MHz, the 689-TEPBGA II requires a multilayer PCB with a continuous ground plane beneath the die footprint, plus thermal vias to the opposite side copper pour. NXP recommends an exposed copper area at least equal to the die footprint to keep junction temperature rise below 20 C above ambient in 65 C environments; design-in should follow NXP AN3222 thermal characterization.
DDR2 signals must use matched-length traces within 25 mil tolerance and a continuous 1.8 V VTT termination on the address/command bus. Series 33 ohm resistors on clock, DQ, and DQS are recommended per NXP MPC8379 layout guidelines; the 689-ball BGA escapes should break out on inner microstrip layers with via-in-pad where the PCB fabricator permits, to maintain characteristic impedance around 50 ohm single-ended.
Do not confuse the obsolete KMPC8379CVRALG (without SEC engine) with the -AFG variant (AES/SEC enabled); firmware that enables SEC drivers must verify the option bit. Also ensure the boot ROM configures POR values for DDR2 versus DDR, because the part defaults are designed for 1.8 V DDR2 memory in most reference designs but legacy designs may have 2.5 V DDR.
Compliance Information
Lead-free (NO-PB) per NXP part designation. RoHS compliant based on NXP product page language. REACH and halogen-free status not published in the available web data and marked 'unknown'.
