NXP Semiconductors SC68376BGVAB25R

Overview

SC68376BGVAB25R from NXP Semiconductors (formerly Motorola) is a 16-bit CISC microcontroller featuring an integrated Time Processing Unit (TPU), 20.97 MHz CPU clock, CAN 2.0A/B controller, and 160-pin QFP package. It executes real-time control tasks in automotive powertrain and industrial motion systems with deterministic TPU event handling and on-chip memory interface.

For engineers reviewing the SC68376BGVAB25R datasheet, SC68376BGVAB25R pinout, SC68376BGVAB25R application, or SC68376BGVAB25R equivalent, key selection criteria include TPU channel count (16 channels), CAN interface presence, operating temperature range (–40 to +105 °C), and 160-pin QFP mechanical compatibility with legacy MC68336/376 designs.

Technical Context

The SC68376BGVAB25R implements the M68300 core architecture with Harvard-style instruction/data buses, supporting external memory expansion up to 16 MB via 24-bit address bus and 16-bit data bus. Its TPU operates independently of the CPU, executing preloaded microcode for precise timing-critical I/O operations including PWM generation, quadrature decoding, and input capture with 100 ns resolution.

It integrates a full CAN 2.0A/B controller with dedicated TX/RX pins (CANTX0/CANRX0), supporting bit rates up to 1 Mbps and message filtering in hardware. The device uses a crystal oscillator (XTAL/EXTAL) with internal PLL to derive the 20.97 MHz system clock and includes separate analog supply rails (VDDA/VSSA) with voltage reference inputs (VRH/VRL) for 10-bit ADC operation across 64 analog input channels.

Key Specifications

Pinout & Package

SC68376BGVAB25R is housed in a 160-pin plastic quad flat pack (QFP) per Case 864A-03 mechanical standard: 28.0 mm × 28.0 mm body, 0.65 mm lead pitch, 1.4 mm max height. Pins 1 and 160 are NC (no connect) to ensure 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 SC68376BGVAB25R, MC68336ACFT20 omits CAN entirely - requiring external interface ICs for networked systems - while SC68376BGCFT20 shares full functional equivalence but lacks the +105 °C qualification needed for under-hood deployment.

Availability

SC68376BGVAB25R is available at Aetrix Electronics and suitable for automotive ECU development, industrial servo drive design, and heavy-duty telematics gateway implementation requiring stable component supply across multi-year production cycles.

Supply support for SC68376BGVAB25R 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 SC68376BGVAB25R belongs to the legacy M68300 microcontroller family, designed specifically for deterministic real-time control in harsh-environment applications such as engine management and industrial automation.

FAQ

What is the maximum operating temperature specification for the SC68376BGVAB25R?

The SC68376BGVAB25R is rated for continuous operation from –40 °C to +105 °C. This extended temperature range qualifies it for under-hood automotive applications and industrial environments with high thermal stress. The device undergoes burn-in and temperature cycling validation per AEC-Q100 Grade 2 requirements, and its thermal design accounts for self-heating under full TPU and CPU load at maximum clock frequency.

Does the SC68376BGVAB25R include an integrated CAN controller, and what version does it support?

Yes, the SC68376BGVAB25R integrates a single CAN 2.0A/B controller with dedicated CANTX0 and CANRX0 pins. It supports both standard (11-bit) and extended (29-bit) identifier formats, configurable bit rates up to 1 Mbps, and hardware message filtering with acceptance masks. The controller operates autonomously with three transmit buffers and two receive buffers, minimizing CPU intervention during high-speed bus traffic.

How many analog input channels does the SC68376BGVAB25R support, and what is the ADC resolution?

The SC68376BGVAB25R supports 64 analog input channels with a 10-bit successive-approximation ADC. Conversion is controlled by software or TPU-triggered events, and results are stored in dedicated result registers. The ADC uses separate analog supply (VDDA/VSSA) and programmable voltage references (VRH/VRL) to maintain linearity and accuracy across temperature and supply variations.

Is the SC68376BGVAB25R pin-compatible with earlier MC68336 devices?

Yes, the SC68376BGVAB25R uses the same 160-pin QFP package (Case 864A-03) and maintains pin compatibility with MC68336 Revision D and later devices. Pins 1 and 160 are designated NC on both parts, enabling direct PCB replacement. However, SC68376BGVAB25R adds CANTX0 and CANRX0 functionality on pins previously unused or assigned to alternate functions in MC68336.

What debug interfaces are supported by the SC68376BGVAB25R?

The SC68376BGVAB25R supports on-chip debugging via dedicated pins: BKPT/DSCLK (breakpoint clock), IPIPE/DSO (instruction pipeline output), and IFETCH/DSI (instruction fetch input). These signals enable real-time trace and non-intrusive breakpoint insertion without requiring JTAG or SWD hardware. Debugging is performed using Motorola/Freescale's DBUG12 or compatible host tools that interpret the synchronous serial debug stream.