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NXP Semiconductors MC68376BAMAB20
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- Part No.:
- MC68376BAMAB20
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 160-BQFP
- Datasheet:
-
MC68376BAMAB20.pdf
- Description:
- IC MCU 32BIT ROMLESS 160QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,251
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Product details
Overview
MC68376BAMAB20 from NXP (formerly Motorola) is a 16-bit CISC microcontroller with integrated TPU, QSM, CAN controller, and 20.97 MHz CPU clock, housed in a 160-pin QFP package. It supports real-time control in industrial automation, engine management, and embedded motion systems via its 16-channel TPU, dual CAN 2.0A/B interface, and 16-bit external bus interface.
For engineers reviewing the MC68376BAMAB20 datasheet, MC68376BAMAB20 pinout, MC68376BAMAB20 application, or MC68376BAMAB20 equivalent, key selection considerations include CAN protocol compliance, TPU timing resolution (16-bit counters with 4 ns resolution), QSM SPI compatibility, and temperature grade (–40 to +125 °C).
Technical Context
The MC68376BAMAB20 implements a 16-bit M68K core with on-chip ROM mask option (blank in this variant), integrated Time Processing Unit (TPU) supporting 16 independent I/O channels for PWM, capture, compare, and quadrature decoding. Its QSM module provides full-duplex SPI-compatible serial communication with programmable baud rate and frame format.
It integrates a dual CAN 2.0A/B controller with message objects, acceptance filtering, and time-triggered communication support. The external bus interface supports 16-bit data/24-bit address multiplexing, asynchronous/synchronous modes, and chip select decoding for up to 11 memory or peripheral regions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68K 16-bit CISC architecture with 20.97 MHz maximum operation |
| TPU Channels | 16 independent channels with 4 ns timing resolution for motor control and sensor interfacing |
| CAN Interface | Dual CAN 2.0A/B controllers with 64 message objects and hardware acceptance filtering |
| QSM Module | Quad Serial Module supporting SPI master/slave, UART-like framing, and daisy-chain capability |
| External Bus | 16-bit data/24-bit address multiplexed interface with 11 chip selects and programmable wait states |
| Analog Inputs | 16-channel 10-bit ADC with differential input support and internal voltage reference (VRH/VRL) |
| Operating Temp | –40 °C to +125 °C industrial grade, qualified per AEC-Q100 Class 0 requirements |
Pinout & Package
MC68376BAMAB20 is packaged in a 160-pin Quad Flat Package (QFP), case 864A-03, measuring 28.0 mm × 28.0 mm × 3.5 mm with 0.65 mm lead pitch. Pin 1 and pin 160 are No Connect (NC) to ensure pin compatibility with MC68336 Revision D+ devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CANRX0 / CANTX0 | CAN 0 physical layer interface | Differential CAN transceiver connection points for ISO 11898-compliant bus termination |
| TPUCH0–TPUCH15 | Time Processing Unit channel I/O | 16 dedicated pins for high-resolution edge detection, PWM output, and quadrature encoder input |
| PCS0–PCS3 / SCK / MOSI / MISO | QSM serial interface signals | Configurable SPI-compatible bus supporting master/slave, daisy-chain, and multi-drop topologies |
| ADDR0–ADDR23 / DATA0–DATA15 | External memory/peripheral bus | 24-bit address and 16-bit data multiplexed interface enabling direct connection to SRAM, Flash, or FPGA logic |
| AN0–AN59 / VRH / VRL / VDDA / VSSA | Analog subsystem terminals | 16-channel 10-bit ADC inputs with programmable reference and separate analog power domain |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0A/B Controller | Enables redundant or multi-bus automotive/industrial networks with hardware message filtering and time-triggered scheduling |
| 16-Channel TPU with 4 ns Resolution | Supports precise motor phase control, encoder position tracking, and real-time event capture without CPU intervention |
| QSM Serial Module | Provides flexible SPI/UART-like communication with automatic frame handling and configurable clock polarity/phase |
| 24-Bit External Bus Interface | Allows seamless integration with off-chip memory, peripherals, or custom ASICs using standard address/data multiplexing |
| On-Chip Debug Support | Includes BKPT/DSCLK, IPIPE/DSO, IFETCH/DSI, FREEZE/QUOT signals for real-time trace and breakpoint debugging |
Applications
| Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Real-time spark/fuel timing, knock detection, and CAN-based diagnostics in gasoline/diesel engines. IC Role / Device Role / Timing Role: Primary MCU executing control algorithms, managing CAN diagnostics, and sampling crank/cam sensors via TPU. Use Value: TPU's 4 ns resolution enables sub-degree ignition timing accuracy; dual CAN supports OBD-II and powertrain bus separation. |
Use Scenario: High-density digital I/O expansion with deterministic response in modular PLC backplanes. IC Role / Device Role / Timing Role: Local controller for 16-channel isolated digital input/output, synchronized via CANopen or proprietary fieldbus. Use Value: 16 TPU channels directly manage pulse-width modulated outputs and high-speed counter inputs without host polling. |
| Electric Power Steering (EPS) | Factory Automation Motion Controller |
Use Scenario: Torque assist calculation, motor current control, and vehicle-CAN feedback in steering column modules. IC Role / Device Role / Timing Role: Safety-critical MCU running ASIL-B software, interfacing with torque sensor, motor driver, and CAN gateway. Use Value: Dual CAN allows separation of chassis bus (CAN 0) and diagnostic bus (CAN 1); 125 °C rating ensures under-hood reliability. |
Use Scenario: Coordinating multi-axis servo drives via distributed clock synchronization and position feedback. IC Role / Device Role / Timing Role: Central motion sequencer using TPU for encoder interpolation and QSM for drive command distribution. Use Value: QSM daisy-chain mode reduces wiring complexity; TPU quadrature decoding achieves 4× resolution on 1000-line encoders. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68376BGCFT20 | Same core, package, and peripheral set but rated for –40 to +85 °C and mask ROM version G (not blank) | Suitable for commercial/industrial environments without extended temperature requirements | Select when operating ambient stays below +85 °C and pre-programmed ROM is acceptable |
| S912XDP512J3MAG | 16-bit S12X core, 512 KB Flash, single CAN, no TPU - uses XGATE coprocessor for timing tasks | Lacks native TPU hardware; requires XGATE firmware for equivalent PWM/capture functionality | Choose when Flash reprogrammability is required and CAN count is not critical |
Compared with MC68376BGCFT20 and S912XDP512J3MAG, the MC68376BAMAB20 uniquely combines blank mask ROM, extended temperature range, dual CAN, and hardware TPU - making it optimal for safety-critical, unchangeable firmware deployments in harsh environments.
Availability
MC68376BAMAB20 is available at Aetrix Electronics and suitable for engine control units, industrial PLC modules, and electric power steering systems requiring stable component supply across long production lifecycles.
Supply support for MC68376BAMAB20 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, designs high-reliability microcontrollers for automotive, industrial, and aerospace applications.
The MC68376 product line was engineered for deterministic real-time control in safety-critical embedded systems, emphasizing hardware-accelerated timing (TPU), robust communication (dual CAN), and extended temperature resilience.
FAQ
What is the maximum operating frequency of the MC68376BAMAB20?
The MC68376BAMAB20 operates at a maximum CPU clock frequency of 20.97 MHz, derived from an external crystal (XTAL/EXTAL) through an on-chip PLL. This frequency is fixed for this variant and supports deterministic instruction timing essential for real-time control loops in the MC68376BAMAB20.
Does the MC68376BAMAB20 include on-chip flash or ROM memory?
The MC68376BAMAB20 features a blank mask ROM - meaning no factory-programmed firmware is present. Users must load application code externally via the 16-bit bus interface or through debug interfaces. This distinguishes it from ROM-masked variants like MC68376BGCFT20, where firmware is permanently embedded during fabrication.
How many CAN interfaces does the MC68376BAMAB20 support?
The MC68376BAMAB20 integrates two independent CAN 2.0A/B controllers (CAN0 and CAN1), each with dedicated RX/TX pins (CANRX0/CANTX0 and CANRX1/CANTX1). Both controllers support bit rates up to 1 Mbps and include 64 message object buffers with hardware acceptance filtering - a key capability of the MC68376BAMAB20 for multi-bus automotive networks.
What is the function of the TPU in the MC68376BAMAB20?
The Time Processing Unit (TPU) in the MC68376BAMAB20 is a dedicated 16-channel peripheral that handles high-resolution timing tasks independently of the CPU - including PWM generation, input capture, output compare, and quadrature decoding. Each channel offers 4 ns timing resolution, enabling precise motor control and sensor interfacing in the MC68376BAMAB20.
Is the MC68376BAMAB20 pin-compatible with other MC68376 variants?
Yes - the MC68376BAMAB20 uses the same 160-pin QFP package (case 864A-03) and shares identical pin assignments with all MC68376 family members, including MC68376BGCFT20 and MC68376BAVFT20. Pins 1 and 160 are designated NC to maintain compatibility with MC68336 Revision D+ devices, ensuring consistent PCB layout across the MC68376BAMAB20 and related variants.
MC68376BAMAB20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 160-BQFP
- Series:
- M683xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- CPU32
- Core Size:
- 32-Bit Single-Core
- Speed:
- 20MHz
- Connectivity:
- CANbus, EBI/EMI, SCI, SPI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 18
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 7.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.75V ~ 5.25V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68376BAMAB20 FAQ
1.How can I place an order for MC68376BAMAB20 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68376BAMAB20 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC68376BAMAB20 reliable?
The price and inventory of MC68376BAMAB20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68376BAMAB20 is usually 5 days.
3.What payment methods are accepted for MC68376BAMAB20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68376BAMAB20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68376BAMAB20?
MC68376BAMAB20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68376BAMAB20 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC68376BAMAB20?
For technical support, including MC68376BAMAB20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68376BAMAB20 requirements.
6.How does Aetrix verify that MC68376BAMAB20 is sourced from the original manufacturer or authorized distributors?
All MC68376BAMAB20 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC68376BAMAB20 meets industry standards.
7.What is the process for return or replacement of MC68376BAMAB20?
All MC68376BAMAB20 units undergo pre-shipment inspection (PSI). If there is an issue with MC68376BAMAB20, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC68376BAMAB20 part is unused and in its original packaging.
Return procedure for MC68376BAMAB20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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