NXP Semiconductors KMPC8314VRAGDA

Overview

KMPC8314VRAGDA from NXP Semiconductors (formerly Freescale) is a PowerQUICC II Pro integrated host processor built on Power Architecture™ e300c3 core, operating at up to 400 MHz with 16 KB instruction and 16 KB data caches, floating-point unit, and MMU support. It integrates dual enhanced three-speed Ethernet controllers (eTSEC), DDR1/DDR2 memory controller (up to 266 MHz), PCI interface (32-bit, 66 MHz), dual PCI Express x1 lanes, USB 2.0 dual-role controller, TDM, SPI, I²C, DUART, and programmable interrupt controller - targeting network-attached storage, VoIP gateways, and industrial controllers.

For engineers reviewing the KMPC8314VRAGDA datasheet, KMPC8314VRAGDA pinout, KMPC8314VRAGDA application, or KMPC8314VRAGDA equivalent, this page delivers verified technical context for system-level integration - including clocking architecture, power sequencing requirements, D3warm low-power mode behavior, SerDes configuration flexibility (SGMII/PCIe), and DDR/DDR2 I/O voltage dependencies (GVDD = 1.8 V or 2.5 V).

Technical Context

The KMPC8314VRAGDA implements an e300c3 core derived from MPC603e architecture, featuring dual integer units, FPU, and software compatibility with prior PowerPC-based PowerQUICC designs. Its memory subsystem supports 16- or 32-bit DDR1/DDR2 SDRAM with auto-refresh, CKE-based power management, and up to 16 open pages.

Peripheral interconnects include two independent PCI Express x1 interfaces (root complex or endpoint mode), dual eTSECs supporting RGMII/MII/RTBI/SGMII (but not GMII), and a SerDes block configurable for either PCIe or SGMII - with no security engine (unlike MPC8314E). Power management includes D0–D3hot states plus D3warm standby, where PMC, one eTSEC, and GTM remain powered via split supply.

Key Specifications

Pinout & Package

KMPC8314VRAGDA is housed in a 672-ball plastic ball grid array (PBGA) package with 1.0 mm ball pitch and 35 mm × 35 mm body size. Thermal pad on underside requires solder paste stencil opening and dedicated ground plane connection per Freescale AN3967.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar embedded communications processor applications.

Compared with MPC8315EVRAGDA and LS1023A, KMPC8314VRAGDA delivers the lowest power envelope (1.167 W typical at 400 MHz) and smallest footprint among PowerQUICC II Pro derivatives, making it ideal for thermally constrained fanless gateways where security acceleration and SATA are not required.

Availability

KMPC8314VRAGDA is available at Aetrix Electronics and suitable for network-attached storage, VoIP gateways, and industrial Ethernet controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.

Supply support for KMPC8314VRAGDA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with heritage from Freescale's PowerQUICC portfolio.

KMPC8314VRAGDA belongs to the PowerQUICC II Pro family - designed specifically for cost-sensitive, low-power embedded communications processors in storage, networking, and industrial control applications where integration, software compatibility, and thermal efficiency are critical.

FAQ

Does KMPC8314VRAGDA include a hardware security engine?

No, KMPC8314VRAGDA does not include a security engine. Unlike the MPC8314E variant, this part omits the SEC 3.3 crypto accelerator - confirmed in Freescale MPC8314EEC Rev. 2 documentation section 2.3 ("Note: The MPC8314 do not include a security engine"). Applications requiring IPSec, SSL/TLS, or iSCSI offload must use MPC8315EVRAGDA or migrate to newer NXP Layerscape processors. KMPC8314VRAGDA retains full e300c3 core, eTSEC, DDR, and PCIe functionality otherwise identical to MPC8314E except for this omission.

What are the critical power sequencing requirements for KMPC8314VRAGDA?

KMPC8314VRAGDA requires strict sequencing: continuous core voltage VDDC must reach 90% of nominal before continuous I/O supplies (LVDDx_ON, NVDDx_ON) exceed 0.7 V; switchable core VDD must ramp before switchable I/O (GVDD, LVDDx_OFF, NVDDx_OFF). PORESET must be asserted throughout ramp-up and held for ≥32 SYS_CLK_IN cycles after all supplies stabilize. Violating this risks I/O contention, excessive current draw, or permanent latch-up - detailed in Section 3.2 "Power Sequencing" of MPC8314EEC Rev. 2.

Can KMPC8314VRAGDA support both DDR1 and DDR2 memory simultaneously?

No, KMPC8314VRAGDA supports DDR1 or DDR2 - not both simultaneously. The DDR/DDR2 controller uses shared physical pins and is configured at boot via hardware straps or software initialization to operate in one mode only. GVDD must be set to 2.5 V ±200 mV for DDR1 or 1.8 V ±100 mV for DDR2; mixing voltages will cause bus corruption. Configuration is fixed per board design - see Section 2.4 "DDR Memory Controller" in MPC8314EEC Rev. 2 for timing and density limits per mode.

What Ethernet interface modes does KMPC8314VRAGDA support on its eTSECs?

KMPC8314VRAGDA eTSECs support RGMII, MII, RMII, RTBI, and SGMII - but not GMII. Each eTSEC can be independently configured for any supported mode. RGMII requires LVDD2_ON at 1.8 V or 2.5 V depending on PHY; SGMII uses the SerDes block and requires proper termination and AC coupling. All modes comply with IEEE 802.3 standards including 802.3ab (1000BASE-T) and 802.1588 (PTP) - documented in Section 2.9 and Figure 1 of MPC8314EEC Rev. 2.

Is KMPC8314VRAGDA pin-compatible with MPC8315EVRAGDA?

Yes, KMPC8314VRAGDA and MPC8315EVRAGDA share identical 672-pin PBGA mechanical packaging and pinout - confirmed in Freescale ordering information (Section 26) and package drawings (Section 22) of MPC8314EEC Rev. 2. This allows drop-in replacement where security acceleration or SATA is not needed, reducing redesign effort. However, MPC8315EVRAGDA adds SEC 3.3 and SATA 1.0 functions on reserved pins, so firmware must disable unused peripherals to avoid conflicts.