NXP Semiconductors MC68376BGMFT20

Overview

MC68376BGMFT20 from NXP (formerly Motorola) is a 16-bit CISC microcontroller with integrated Time Processing Unit (TPU), 20.97 MHz CPU clock, blank mask ROM, and 160-pin QFP package. It serves as a real-time control engine in industrial motion systems, supporting deterministic I/O timing via TPU channels and external bus interfacing for memory-mapped peripherals.

For engineers reviewing the MC68376BGMFT20 datasheet, MC68376BGMFT20 pinout, MC68376BGMFT20 application, or MC68376BGMFT20 equivalent, key selection criteria include TPU channel count (16), CAN interface presence (CANRX0/CANTX0), 16-bit external data bus width, analog input capability (60-channel ADC with VDDA/VSSA), and industrial temperature range (–40 to +125 °C).

Technical Context

The MC68376BGMFT20 implements a 16-bit M68K core with on-chip TPU for offloading time-critical I/O tasks including PWM generation, quadrature decoding, and pulse-width measurement. Its external bus interface supports 16-bit data (DATA0–DATA15) and 24-bit addressing (ADDR0–ADDR23), enabling direct connection to SRAM, flash, and peripheral ASICs.

It integrates dual analog subsystems: a 12-bit ADC with 60 input channels (AN0–AN59), programmable reference (VRH/VRL), and dedicated analog supply pins (VDDA/VSSA); plus a CAN 2.0A-compliant controller with dedicated CANRX0 and CANTX0 pins - a functional distinction from the MC68336, which lacks CAN hardware.

Key Specifications

Pinout & Package

MC68376BGMFT20 uses a 160-pin Quad Flat Package (QFP), Case 864A-03, with 0.65 mm lead pitch, 28.0 mm × 28.0 mm body size, and 31.2 mm × 31.2 mm overall footprint per JEDEC MS-026.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC68336ACFT20, MC68376BGMFT20 adds essential CAN 2.0A hardware for distributed control networks; compared with MC9328MX1L, it delivers superior real-time determinism via TPU but lacks multimedia peripherals and OS support - making it optimal for hard real-time embedded control where CAN and timing precision are mandatory.

Availability

MC68376BGMFT20 is available at Aetrix Electronics and suitable for motor control systems, automotive body electronics, industrial PLC modules, and power inverter interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC68376BGMFT20 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 (formerly Motorola Semiconductor) is a global leader in secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in microcontroller innovation since the 1980s.

The MC68376 belongs to the M68300 family of 16-bit microcontrollers designed specifically for deterministic real-time control in harsh environments - emphasizing TPU-accelerated I/O, robust analog integration, and industrial-grade reliability.

FAQ

What is the maximum operating frequency of the MC68376BGMFT20?

The MC68376BGMFT20 operates at a maximum CPU clock frequency of 20.97 MHz, derived from an external crystal (XTAL/EXTAL) and internal PLL. This frequency governs instruction execution speed, TPU timer resolution, and ADC conversion timing - all critical for hard real-time control loops in motor drives and power electronics where jitter must remain below 50 ns.

Does the MC68376BGMFT20 include on-chip flash or ROM memory?

The MC68376BGMFT20 features blank mask ROM - meaning its internal ROM is unprogrammed at manufacture and intended for customer-specific firmware programming during production. It does not contain factory-programmed code or flash memory; external parallel memory (via its 16-bit EBI) is typically used for program storage in final designs.

How many analog input channels does the MC68376BGMFT20 support?

The MC68376BGMFT20 integrates a 12-bit successive-approximation ADC with 60 configurable analog input channels (AN0 through AN59), mapped across multiple port pins. These inputs support ratiometric measurement using dedicated VRH and VRL reference pins, and operate from a separate analog power domain (VDDA/VSSA) to ensure noise immunity in mixed-signal applications.

Is the MC68376BGMFT20 pin-compatible with the MC68336 series?

Yes - the MC68376BGMFT20 shares the same 160-pin QFP package and pinout as the MC68336, including NC assignments on Pins 1 and 160 for compatibility. However, MC68376BGMFT20 adds CANRX0 and CANTX0 functionality on Pins 1 and 109 respectively, whereas those pins serve other roles (e.g., GND/VDD) on MC68336 variants - requiring schematic review before substitution.

What is the purpose of the TPU in the MC68376BGMFT20?

The Time Processing Unit (TPU) in the MC68376BGMFT20 is a dedicated 16-channel peripheral that executes time-critical I/O operations autonomously - including PWM generation, input capture, output compare, quadrature decoding, and pulse-width measurement - without CPU intervention. This offloads timing tasks from the M68K core, ensuring sub-microsecond determinism essential for motor commutation and safety-critical control.