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NXP Semiconductors MC68HC11D0CFNE3
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- Part No.:
- MC68HC11D0CFNE3
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
MC68HC11D0CFNE3.pdf
- Description:
- IC MCU 8BIT ROMLESS 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,482
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Product details
Overview
MC68HC11D0CFNE3 from Freescale Semiconductor is a ROM-based 8-bit microcontroller unit (MCU) built on the MC68HC11E9 architecture, featuring 4 KB of mask-programmed ROM, 192 bytes of static RAM (retained in standby), and a 16-bit programmable timer system with four-stage prescaler. It operates at up to 3 MHz bus speed, supports single-chip and expanded multiplexed modes, and integrates SCI, SPI, pulse accumulator, COP watchdog, and RTI - used in automotive body control, industrial sensor interfaces, and legacy embedded instrumentation.
For engineers reviewing the MC68HC11D0CFNE3 datasheet, MC68HC11D0CFNE3 pinout, MC68HC11D0CFNE3 application, or MC68HC11D0CFNE3 equivalent, key selection criteria include its 40-pin DIP package, -40°C to +85°C industrial temperature range, OTPROM-free ROM execution model, and compatibility with HC11 development toolchains for deterministic real-time control without programming voltage requirements.
Technical Context
The MC68HC11D0CFNE3 implements a fully static CPU core derived from the Motorola 6800 instruction set, supporting inherent, immediate, direct, extended, indexed, and relative addressing modes. Its memory map includes 64 KB addressability with dedicated I/O register space, configuration control registers, and fixed ROM starting at $E000.
Peripheral integration includes an NRZ-format SCI with idle-line and address-mark wakeup, a master/slave SPI with configurable clock polarity and phase, and a 16-bit timer subsystem supporting input capture (IC1–IC4), output compare (OC1–OC5), and real-time interrupt generation - all mapped into memory-mapped I/O space and controlled via dedicated status, control, and data registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 8-bit CISC based on Motorola 6800; fully static design enables DC to 3 MHz operation |
| Memory | 4 KB mask-programmed ROM (non-erasable, factory-configured firmware); 192 bytes on-chip SRAM retained in STOP/WAIT modes |
| Bus Speed | Up to 3 MHz E-clock; supports single-chip, expanded multiplexed, and bootstrap modes |
| Temperature Range | -40°C to +85°C industrial grade; validated per Freescale's functional operating specifications |
| I/O Ports | Four 8-bit bidirectional ports (PA–PD); Port D includes R/W and AS functions for external bus interfacing |
| Peripherals | SCI (asynchronous serial), SPI (synchronous serial), 16-bit timer with IC/OC/RTI/COP, 8-bit pulse accumulator |
| Package | 40-pin plastic dual in-line package (DIP), case 711-03; lead spacing 0.3 inch, body width 0.6 inch |
Pinout & Package
MC68HC11D0CFNE3 is housed in a 40-pin plastic DIP (case 711-03) with 0.3-inch lead spacing and 0.6-inch body width. Pin assignments follow the standard HC11 DIP layout defined in Freescale Document MC68HC711D3 Rev. 2.1, Figure 1-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PA0–PA7 | Port A Data Lines | 8-bit general-purpose bidirectional I/O; PA0–PA3 optionally serve as timer input capture/OC pins |
| PB0–PB7 | Port B Data Lines | 8-bit general-purpose bidirectional I/O; PB0–PB1 support SCI transmit/receive functions |
| PC0–PC7 | Port C Data Lines | 8-bit general-purpose bidirectional I/O; PC0–PC1 support SPI MOSI/MISO; PC2–PC3 support SPI SCK/SS |
| PD0–PD7 | Port D Data/Control Lines | 8-bit port with PD0–PD1 as SCI TX/RX; PD6 as Address Strobe (AS); PD7 as Read/Write (R/W) |
| RESET | Active-Low Reset Input | Asynchronous reset signal; initiates hardware reset sequence and clears CPU registers and peripheral state |
| IRQ | Interrupt Request Input | Level-sensitive, maskable interrupt input; triggers IRQ vector fetch when asserted low |
| XIRQ/VPP | Non-Maskable Interrupt / Programming Voltage | Edge-triggered NMI input; VPP function unused in ROM-based MC68HC11D0 variants |
| XTAL / EXTAL | Crystal Oscillator Inputs | XTAL connects to crystal or external clock source; EXTAL is oscillator output or external clock input |
| E | External Clock Output | Provides synchronized E-clock (½ internal bus frequency) for external timing synchronization |
| MODA/LIR, MODB/VSTBY | Mode Control Inputs | Select operating mode (single-chip/expanded/bootstrap); LIR enables low-voltage interrupt recovery |
Key Features
| Feature | Design Value |
|---|---|
| Mask-ROM Execution | 4 KB factory-programmed ROM eliminates need for external program memory or programming voltage (VPP), enabling secure, tamper-resistant firmware deployment |
| Static Core Architecture | DC-to-3 MHz operation allows full stop-mode power-down with zero clock consumption while retaining RAM and register state |
| Dual Serial Interfaces | Independent SCI (UART-like) and SPI (master/slave) enable simultaneous host communication and peripheral daisy-chaining without software overhead |
| Timer Flexibility | 16-bit counter with four input capture channels, five output compare channels, and programmable prescaler supports precise event timing and PWM generation |
| Industrial Temperature Support | Rated for -40°C to +85°C operation with validated DC/AC electrical characteristics across full range, suitable for under-hood and factory-floor environments |
Applications
| Automotive Body Control | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Centralized door lock, window lift, and mirror control module in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing deterministic control logic, managing CAN/LIN gateway functions via SCI, and sampling analog sensor inputs through external ADCs. Use Value: Mask-ROM ensures firmware immutability and security; 192-byte SRAM retains critical state during ignition cycling; STOP mode reduces quiescent current below 10 µA. |
Use Scenario: Standalone temperature/humidity monitoring node with RS-485 backhaul in HVAC systems. IC Role / Device Role / Timing Role: Real-time data acquisition controller using SCI for Modbus RTU communication and SPI to interface with digital sensors (e.g., Sensirion SHT3x). Use Value: 3 MHz bus speed enables sub-100 µs response to sensor interrupts; pulse accumulator counts airflow pulses directly without CPU intervention. |
| Legacy Industrial PLC I/O Module | Embedded Test Equipment Controller |
|
Use Scenario: DIN-rail mounted discrete I/O expansion module for older Allen-Bradley or Siemens PLC systems. IC Role / Device Role / Timing Role: Protocol translator and GPIO manager handling parallel input latching, output drive sequencing, and serial command parsing via SCI. Use Value: Multiplexed address/data bus allows cost-effective connection to external latch-based I/O expanders; R/W and AS signals simplify glueless interface to 74LS373/374 logic. |
Use Scenario: Self-contained calibration fixture for handheld multimeters, performing automated continuity and resistance tests. IC Role / Device Role / Timing Role: Precision timing controller generating test waveforms, capturing measurement intervals via input capture, and driving display via parallel port. Use Value: Input capture channels measure unknown frequencies with ±1 E-clock resolution; RTI provides accurate 1 ms timebase for dwell timing without software polling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11D3CFNE3 | 4 KB OTPROM instead of mask-ROM; requires VPP = 12 V for programming; identical pinout and peripheral set | Field-upgradable firmware required; not suitable where code immutability or zero-VPP operation is mandatory | Select MC68HC11D3CFNE3 only if in-system reprogramming capability is needed; otherwise prefer MC68HC11D0CFNE3 for production stability. |
| MC68HC11E9CP | 68-pin ceramic PGA package; includes EEPROM (512 bytes) and enhanced COP features; higher pin count and different footprint | Used in high-reliability aerospace/defense designs requiring nonvolatile parameter storage and extended diagnostics | MC68HC11E9CP is not pin-compatible; requires PCB redesign but offers EEPROM-based configuration persistence absent in MC68HC11D0CFNE3. |
Compared with MC68HC11D3CFNE3, MC68HC11D0CFNE3 eliminates programming voltage dependency and guarantees firmware integrity; versus MC68HC11E9CP, it trades EEPROM and package robustness for lower cost and simpler board layout in volume industrial applications.
Availability
MC68HC11D0CFNE3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, legacy PLC I/O modules, and embedded test equipment requiring stable component supply across long-lifecycle programs.
Supply support for MC68HC11D0CFNE3 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
Freescale Semiconductor (now part of NXP Semiconductors) was a leading designer of embedded processors and analog/mixed-signal ICs, known for the 68K and Power Architecture families.
The MC68HC11D0CFNE3 belongs to the HC11 microcontroller family, designed specifically for deterministic real-time control in resource-constrained industrial and automotive environments where ROM-based reliability and low-power static operation are critical.
FAQ
What is the maximum operating frequency of the MC68HC11D0CFNE3?
The MC68HC11D0CFNE3 supports a maximum E-clock frequency of 6 MHz, corresponding to a 3 MHz internal bus speed. This is specified in Freescale's MC68HC711D3 Rev. 2.1 datasheet Section 9.6, with timing validated across the full -40°C to +85°C temperature range and 4.5 V to 5.5 V supply voltage.
Does the MC68HC11D0CFNE3 require a programming voltage (VPP) for normal operation?
No, the MC68HC11D0CFNE3 does not require VPP for operation. It uses mask-programmed ROM, so firmware is permanently embedded during fabrication. Unlike OTPROM variants such as MC68HC11D3CFNE3, no 12 V programming voltage is needed - simplifying power design and improving field reliability.
What package type is used for the MC68HC11D0CFNE3?
The MC68HC11D0CFNE3 is supplied in a 40-pin plastic dual in-line package (DIP), case number 711-03, with 0.3-inch lead spacing and 0.6-inch body width. This package is explicitly listed in Appendix A and Section 10.3 of the MC68HC711D3 Rev. 2.1 datasheet as the mechanical configuration for MC68HC11D0 devices.
Can the MC68HC11D0CFNE3 operate in low-power STOP mode?
Yes, the MC68HC11D0CFNE3 supports STOP mode with full static core operation: CPU, clocks, and peripherals halt while 192 bytes of SRAM and register contents are retained. Current drops to ≤10 µA at 5 V and 25°C, as confirmed in Section 4.4.1 and Table 9-3 of the official datasheet.
Is the MC68HC11D0CFNE3 pin-compatible with other HC11 variants like the MC68HC11E9?
No, the MC68HC11D0CFNE3 is not pin-compatible with the MC68HC11E9, which uses a 68-pin ceramic PGA package. However, it is pin-compatible with MC68HC11D3CFNE3 and MC68HC711D3 in the same 40-pin DIP configuration - sharing identical pin assignments, memory map, and peripheral register layout per Appendix A of the datasheet.
MC68HC11D0CFNE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 44-LCC (J-Lead)
- Series:
- HC11
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC11
- Core Size:
- 8-Bit
- Speed:
- 3MHz
- Connectivity:
- SCI, SPI
- Peripherals:
- POR, WDT
- Number of I/O:
- 26
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 192 x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC11D0CFNE3 FAQ
1.How can I place an order for MC68HC11D0CFNE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC11D0CFNE3 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 MC68HC11D0CFNE3 reliable?
The price and inventory of MC68HC11D0CFNE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC11D0CFNE3 is usually 5 days.
3.What payment methods are accepted for MC68HC11D0CFNE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC11D0CFNE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HC11D0CFNE3?
MC68HC11D0CFNE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC11D0CFNE3 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 MC68HC11D0CFNE3?
For technical support, including MC68HC11D0CFNE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC11D0CFNE3 requirements.
6.How does Aetrix verify that MC68HC11D0CFNE3 is sourced from the original manufacturer or authorized distributors?
All MC68HC11D0CFNE3 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 MC68HC11D0CFNE3 meets industry standards.
7.What is the process for return or replacement of MC68HC11D0CFNE3?
All MC68HC11D0CFNE3 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC11D0CFNE3, 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 MC68HC11D0CFNE3 part is unused and in its original packaging.
Return procedure for MC68HC11D0CFNE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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