NXP Semiconductors MPC5123VY400B

Overview

MPC5123VY400B from NXP Semiconductors (formerly Freescale) is a Power Architecture®-based system-on-chip microcontroller integrating an e300 CPU core, DDR1/DDR2 memory controller, USB 2.0 OTG with PHY, SATA controller with integrated PHY, PCI 2.3 interface, and four CAN controllers. It operates at 400 MHz with 0°C to 70°C ambient temperature range and is packaged in a 516-ball TEPBGA (27 mm × 27 mm).

For engineers reviewing the MPC5123VY400B datasheet, MPC5123VY400B pinout, MPC5123VY400B application, or MPC5123VY400B equivalent, key selection considerations include its dual-domain power architecture (VDD_CORE = 1.4 V, VDD_IO = 3.3 V), 128 KB on-chip SRAM, support for NAND flash via NFC, and absence of MBX Lite graphics engine-distinguishing it from the MPC5121E.

Technical Context

The MPC5123VY400B implements a 32-bit e300 core compliant with Power Architecture v2.03, featuring 32 KB instruction and 32 KB data caches. Its memory subsystem includes a flexible external memory bus (EMB), DDR1/DDR2 SDRAM controller with 64-bit data bus, and 128 KB on-chip SRAM. The device supports multiple low-power modes: doze, nap, sleep, deep sleep, and hibernate.

Peripheral integration includes a 64-channel DMA subsystem, programmable serial controllers (PSCs) supporting UART, SPI, I²S, and AC97, three I²C interfaces, SPDIF audio I/O, J1850 automotive bus, and a dedicated video input unit (VIU) compliant with ITU-R BT.656. Unlike the MPC5121E, the MPC5123 omits the MBX Lite 2D/3D graphics engine and AXE auxiliary execution engine.

Key Specifications

Pinout & Package

Package: 516-ball Thin Enhanced Plastic Ball Grid Array (TEPBGA), 27 mm × 27 mm footprint, 1.0 mm ball pitch, standard JEDEC MO-251AC compliant. Thermal pad on underside requires solder paste stencil design per IPC-7351B.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPC5121VY400B, the MPC5123VY400B removes graphics acceleration to reduce die size and static power, making it optimal for headless industrial gateways; versus i.MX27, it delivers deterministic CAN timing and native SATA storage-critical for medical and automotive data aggregation.

Availability

MPC5123VY400B is available at Aetrix Electronics and suitable for automotive infotainment, industrial HMI, and network-attached storage applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for MPC5123VY400B 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 company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MPC5123 belongs to NXP's Power Architecture-based communication processor family, designed specifically for cost-sensitive, high-integration embedded systems requiring mixed-signal I/O, real-time bus interfaces (CAN, PCI), and storage connectivity (SATA, NAND) without graphics overhead.

FAQ

What is the maximum DDR2 memory bandwidth supported by the MPC5123VY400B?

The MPC5123VY400B supports DDR2-400 (200 MHz clock, 400 MT/s data rate) with a 64-bit bus width, delivering up to 3.2 GB/s theoretical peak bandwidth. Actual sustained bandwidth depends on memory timing configuration, bank interleaving, and arbitration between CPU, DMA, and peripheral masters accessing the DDR controller.

Does the MPC5123VY400B include an integrated graphics engine like the MPC5121E?

No, the MPC5123VY400B explicitly excludes the MBX Lite 2D/3D graphics engine and AXE auxiliary execution engine present in the MPC5121E. This omission reduces silicon area and static power consumption, positioning the MPC5123VY400B for headless or low-GUI applications where those accelerators are unnecessary.

How many CAN controllers does the MPC5123VY400B integrate, and what protocol versions do they support?

The MPC5123VY400B integrates four independent CAN controllers, each compliant with ISO 11898-1:2003 (CAN 2.0B). All support both standard (11-bit) and extended (29-bit) identifier formats, programmable bit rates up to 1 Mbps, and hardware message filtering with 32 dedicated message objects per controller.

What is the function of the VBAT_RTC supply pin on the MPC5123VY400B?

The VBAT_RTC pin supplies backup power to the on-chip real-time clock (RTC) and associated oscillator circuitry (RTC_XTALI/RTC_XTALO), enabling continuous timekeeping during main power loss. It accepts 1.0–3.6 V and must be decoupled with a 100 nF capacitor; typical implementation uses a coin-cell battery or supercapacitor.

Can the MPC5123VY400B operate in hibernate mode while maintaining CAN bus wake-up capability?

Yes, the MPC5123VY400B supports hibernate mode with selective wake-up via CAN bus activity. When in hibernate, the e300 core and most peripherals are powered down, but the CAN controllers retain power via VBAT_RTC and can detect dominant bits on CAN1_RX/CAN2_RX to trigger a wake-up interrupt, resuming full operation within 100 µs.