NXP Semiconductors MC68376BGMAB20

Overview

MC68376BGMAB20 from NXP (formerly Motorola) is a 32-bit microcontroller unit (MCU) featuring a CPU32 core, 160-pin QFP package, 20.97 MHz maximum clock frequency, integrated Time Processing Unit (TPU), and CAN 2.0A/B controller. It serves as a real-time control engine in industrial motion systems requiring deterministic I/O timing and fieldbus connectivity.

For engineers reviewing the MC68376BGMAB20 datasheet, MC68376BGMAB20 pinout, MC68376BGMAB20 application, or MC68376BGMAB20 equivalent, key selection considerations include TPU channel count (16-channel), CAN interface presence (dual CANRX0/CANTX0), analog input capability (60-channel ADC with 10-bit resolution), and extended temperature support (–40 to +125 °C).

Technical Context

The MC68376BGMAB20 implements the CPU32 instruction set architecture with 32-bit data and address buses, supporting external memory expansion up to 16 MB via programmable chip select logic and burst-mode bus arbitration. Its TPU provides hardware-accelerated timing functions including PWM generation, input capture, and quadrature decoding without CPU intervention.

It integrates a dual-CAN controller compliant with ISO 11898-1, supporting both standard (11-bit) and extended (29-bit) identifiers, with message buffering and prioritized transmission. The on-chip 10-bit ADC supports up to 60 analog inputs across three banks (PQA, PQB, ANx), with configurable sample-and-hold and conversion trigger sources.

Key Specifications

Pinout & Package

MC68376BGMAB20 uses a 160-pin plastic quad flat pack (QFP) per Case 864A-03 mechanical specification, with 0.65 mm lead pitch, 28.0 mm × 28.0 mm body size, and 3.5 mm max height. Pin 1 and pin 160 are No Connect (NC) 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 MC68376BGMAB20, MC68336ACFT20 removes CAN functionality while retaining identical TPU and ADC capabilities, whereas MC9328MX1LK shifts to ARM architecture with higher throughput but sacrifices hardware-accelerated real-time I/O features essential for motor control.

Availability

MC68376BGMAB20 is available at Aetrix Electronics and suitable for industrial motor drives, automotive engine control units, and power converter controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC68376BGMAB20 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 (originally Motorola Semiconductor) designs high-reliability microcontrollers for automotive, industrial, and aerospace applications, with deep expertise in real-time embedded systems and functional safety.

The MC68376 belongs to the M68300 family of 32-bit microcontrollers engineered specifically for deterministic real-time control in harsh environments, emphasizing hardware acceleration for timing-critical I/O and fieldbus integration.

FAQ

What is the maximum operating frequency of the MC68376BGMAB20?

The MC68376BGMAB20 operates at a maximum clock frequency of 20.97 MHz, derived from its crystal oscillator input (XTAL/EXTAL) and internal PLL configuration. This frequency governs instruction execution speed, TPU event resolution, and ADC conversion rate. The MC68376BGMAB20 maintains timing accuracy across its full –40 to +125 °C operating range without derating.

Does the MC68376BGMAB20 include an integrated CAN controller?

Yes, the MC68376BGMAB20 integrates a fully compliant CAN 2.0A/B controller with dedicated CANRX0 and CANTX0 pins. It supports both standard and extended identifier formats, message filtering, and transmit/receive FIFOs. Unlike external CAN solutions, this on-chip controller eliminates interface timing uncertainty and reduces BOM count in automotive and industrial networks.

How many analog input channels does the MC68376BGMAB20 support?

The MC68376BGMAB20 supports 60 analog input channels (AN0 through AN59), mapped across three multiplexed banks (PQA, PQB, ANx), each feeding a shared 10-bit successive-approximation ADC. Channel selection is software-configurable, and conversions can be triggered by TPU events, timers, or software commands - enabling synchronized sampling in motor control applications.

What package type and pin count does the MC68376BGMAB20 use?

The MC68376BGMAB20 uses a 160-pin plastic quad flat pack (QFP) per Case 864A-03 mechanical specification, measuring 28.0 mm × 28.0 mm with 0.65 mm lead pitch. Pins 1 and 160 are designated No Connect (NC) to ensure pin compatibility with later revisions of the MC68336, simplifying board design reuse across both families.

Is the MC68376BGMAB20 suitable for automotive under-hood applications?

Yes, the MC68376BGMAB20 is rated for operation from –40 to +125 °C and qualified for automotive under-hood environments. Its integrated TPU, CAN controller, and high-channel-count ADC meet critical requirements for engine control, transmission management, and electric power steering systems where reliability and real-time performance are mandatory.