NXP Semiconductors SC68376BGVAB25

Overview

SC68376BGVAB25 from NXP Semiconductors (formerly Motorola) is a 16-bit microcontroller unit (MCU) featuring a CPU32 core, integrated TPU (Time Processing Unit), CAN 2.0A controller, 160-pin QFP package, and operation up to 20.97 MHz. It serves as a system-level controller in industrial motion control systems requiring deterministic timing, real-time I/O handling, and fieldbus connectivity.

For engineers reviewing the SC68376BGVAB25 datasheet, SC68376BGVAB25 pinout, SC68376BGVAB25 application, or SC68376BGVAB25 equivalent, key selection criteria include its 20.97 MHz clock speed, integrated CAN interface, TPU-based PWM/encoder support, and extended temperature range (–40 °C to +125 °C).

Technical Context

The SC68376BGVAB25 implements the CPU32 instruction set architecture with 32-bit internal data paths and 24-bit addressing, enabling direct access to up to 16 MB of external memory. Its Time Processing Unit (TPU) provides 24 independent channels for high-precision input capture, output compare, pulse-width modulation, and quadrature decoding - all synchronized to a common time base.

The MCU integrates a full CAN 2.0A controller with dedicated message buffers, programmable bit timing, and error handling logic. It supports both standard (11-bit) identifiers and operates at bus rates up to 1 Mbps, with hardware filtering and automatic retransmission on error.

Key Specifications

Pinout & Package

SC68376BGVAB25 is housed in a 160-pin plastic quad flat pack (QFP), Case 864A-03, with 0.65 mm lead pitch and 28 mm × 28 mm body size. Pin 1 is NC (no connect); pin 160 is NC - ensuring pin compatibility with MC68336 Revision D+ devices.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC68336ACFT20, SC68376BGVAB25 adds CAN 2.0A on-chip, reducing component count and board area; compared with SC68376BGMFT20, it ships with factory-programmed mask ROM containing validated startup code and peripheral initialization routines.

Availability

SC68376BGVAB25 is available at Aetrix Electronics and suitable for industrial motor control, automotive engine management, and off-highway telematics applications requiring stable component supply across long product lifecycles.

Supply support for SC68376BGVAB25 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 SC68376BGVAB25 belongs to the legacy Motorola 68300 family of microcontrollers, designed specifically for deterministic real-time control in harsh-environment applications such as engine control, industrial automation, and motion systems.

FAQ

What is the operating voltage range for the SC68376BGVAB25?

The SC68376BGVAB25 operates from a 5.0 V ±10% supply for digital logic (VDD/VSS) and requires separate 5.0 V ±10% analog supplies (VDDA/VSSA) for its ADC and TPU reference circuitry. The device does not support 3.3 V operation; level-shifting is required when interfacing with lower-voltage peripherals.

Does the SC68376BGVAB25 include on-chip flash or ROM memory?

No, the SC68376BGVAB25 contains no on-chip non-volatile program memory. It relies entirely on external memory mapped via its 24-bit address bus. The "B" in the part number indicates a blank mask ROM option, but SC68376BGVAB25 uses factory-programmed mask ROM for boot code and peripheral configuration - not user-application storage.

Is the SC68376BGVAB25 pin-compatible with the MC68336 series?

Yes, the SC68376BGVAB25 is pin-compatible with MC68336 Revision D and later (F60K+ mask sets), as both assign pins 1 and 160 as NC. However, functional differences exist - notably the integrated CAN controller in SC68376BGVAB25 absent in MC68336 - so PCB layout reuse requires verification of signal routing and power delivery.

What clock sources does the SC68376BGVAB25 support?

The SC68376BGVAB25 supports either a parallel-resonant quartz crystal (4–25 MHz) connected between XTAL and EXTAL pins, or an external CMOS clock signal applied to EXTAL with XTAL grounded. The internal oscillator circuit is not configurable for frequency multiplication; system clock equals crystal or external clock frequency.

How many TPU channels does the SC68376BGVAB25 provide, and what are their primary uses?

The SC68376BGVAB25 provides 24 dedicated TPU channels. These are used for high-precision input capture (e.g., encoder edges), output compare (e.g., PWM generation), pulse-width modulation (e.g., motor phase control), and quadrature decoding (e.g., position tracking). All channels share a common time base and operate independently without CPU intervention.