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NXP Semiconductors MC68HC11E0MFNE2
- Part No.:
- MC68HC11E0MFNE2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HC11E0MFNE2.pdf
- Description:
- IC MCU 8BIT ROMLESS 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,054
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Product details
Overview
MC68HC11E0MFNE2 from NXP (formerly Freescale) is an 8-bit CISC microcontroller in the M68HC11E family, featuring 512 bytes of on-chip RAM, 12 KB of EPROM, 512 bytes of EEPROM, and integrated peripherals including 8-channel 8-bit ADC, SCI, SPI, and a 16-bit timer system. It operates at up to 2 MHz bus frequency and supports single-chip mode for embedded control in automotive sensors and industrial I/O modules.
For engineers reviewing the MC68HC11E0MFNE2 datasheet, MC68HC11E0MFNE2 pinout, MC68HC11E0MFNE2 application, or MC68HC11E0MFNE2 equivalent, key selection criteria include EPROM programmability, on-chip EEPROM retention, SCI/SCI wakeup capability, and compatibility with legacy HC11 development tools like EVBU and PCbug11.
Technical Context
The MC68HC11E0MFNE2 implements the Motorola 68HC11 CPU core with full instruction set compatibility, supporting direct, indexed, extended, and inherent addressing modes. Its memory map includes configurable RAM/I/O mapping and system initialization via the System Configuration Register (CONFIG).
Peripheral integration includes a 16-bit timer with input capture/output compare channels, dual serial interfaces (SCI and SPI), and an 8-channel analog-to-digital converter with software-selectable conversion sequence and multiple power-down modes (Wait/Stop) for low-power operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Motorola 68HC11 8-bit CISC architecture with 64-pin instruction set and full backward compatibility |
| Max Bus Frequency | 2 MHz - determines maximum peripheral timing and instruction throughput in single-chip mode |
| On-Chip Memory | 12 KB EPROM + 512 B EEPROM + 512 B RAM - enables self-contained firmware storage and nonvolatile parameter retention |
| ADC | 8-channel 8-bit successive-approximation ADC with programmable conversion sequence and internal reference |
| Serial Interfaces | One SCI (asynchronous UART) and one SPI (synchronous master/slave) - supports sensor telemetry and peripheral daisy-chaining |
| Timer System | 16-bit timer with 4 input capture and 5 output compare channels - enables precise pulse-width measurement and PWM generation |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard TTL logic levels and industrial 5 V rails |
| Package | 52-pin PLCC (FNE2 suffix) - surface-mount compatible with reflow assembly and socket-based prototyping |
Pinout & Package
MC68HC11E0MFNE2 is housed in a 52-pin Plastic Leaded Chip Carrier (PLCC) package with J-lead configuration, designed for high-reliability industrial mounting and thermal stability under continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power pins support noise isolation between analog/digital sections; VSS must be low-impedance return path |
| XTAL / EXTAL | Crystal oscillator input/output | Drives internal clock generator; supports 1–4 MHz crystal or external clock source for precise timing |
| E | System clock output | Provides buffered E-clock (½ bus frequency) for synchronizing external logic or test equipment |
| RESET | Active-low reset input | Asynchronous hardware reset; initiates memory initialization and vector fetch from $FFFE–$FFFF |
| IRQ / XIRQ | Maskable and non-maskable interrupt inputs | Supports prioritized real-time event handling; XIRQ bypasses interrupt mask for critical fault response |
| PORT A–E | Programmable bidirectional I/O ports | Port A (8-bit) and Port E (8-bit) support alternate functions including ADC inputs, SCI/SPI signals, and timer I/O |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM programming | Enables field firmware updates without external programmer; requires VPPE/XIRQ pin for programming voltage enable |
| EEPROM data retention | Guaranteed 10-year data retention at 85°C - suitable for calibration storage and configuration persistence |
| SCI wakeup capability | Idle-line and address-mark detection allows wake-from-Stop mode via serial command - reduces system standby power |
| Configurable memory map | RAM/I/O mapping register allows dynamic remapping of $0000–$03FF region for flexible peripheral addressing |
| Hardware COP watchdog | Computer Operating Properly circuit provides fail-safe reset if software hangs - configurable timeout via CONFIG register |
| Single-chip mode operation | Eliminates need for external address/data bus logic; simplifies PCB layout and reduces BOM count |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Monitoring engine RPM, throttle position, and coolant temperature in legacy vehicle subsystems. IC Role / Device Role / Timing Role: Central controller executing closed-loop fuel injection timing using timer input capture and ADC sampling. Use Value: On-chip EPROM stores calibrated lookup tables; EEPROM retains adaptive learning values across ignition cycles. | Use Scenario: Standalone temperature monitoring in HVAC ducts with local display and RS-232 telemetry. IC Role / Device Role / Timing Role: ADC interface to thermistor network; SCI transmits readings at 9600 baud to central controller. Use Value: SCI wakeup from Stop mode extends battery life; 512 B EEPROM stores calibration offsets per sensor channel. |
| Legacy Industrial PLC I/O Module | Medical Infusion Pump Controller |
Use Scenario: Digital input conditioning and relay driver control in DIN-rail mounted automation modules. IC Role / Device Role / Timing Role: Port A and Port C manage opto-isolated inputs; Port D drives Darlington arrays for 24 V DC outputs. Use Value: Single-chip mode eliminates external glue logic; COP watchdog ensures safe shutdown on firmware fault. | Use Scenario: Precision motor speed control and safety interlock monitoring in Class II medical devices. IC Role / Device Role / Timing Role: Timer output compare generates PWM for stepper motor drive; ADC monitors pressure transducer feedback. Use Value: 8-bit ADC resolution meets IEC 62304 Class B requirements; EEPROM stores device-specific safety thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E9CP | Same core and peripheral set but in 52-pin ceramic DIP package; lacks PLCC thermal performance and reflow compatibility | Preferred for through-hole prototyping and lab evaluation; not suitable for automated SMT production | Select when manual assembly or socket-based debugging is required; verify PCB footprint and thermal derating |
| MC68HC11A8CP | Enhanced variant with 20 KB ROM, no EPROM; adds CAN interface and higher-speed bus (up to 3.2 MHz) | Targeted at CAN-based vehicle networks; incompatible EPROM programming flow and memory map | Choose only if CAN protocol support is mandatory and legacy EPROM field updates are unnecessary |
Compared with MC68HC11E9CP and MC68HC11A8CP, the MC68HC11E0MFNE2 uniquely balances EPROM field-programmability, PLCC manufacturability, and proven qualification for long-lifecycle industrial deployments where firmware update flexibility and thermal reliability are jointly critical.
Availability
MC68HC11E0MFNE2 is available at Aetrix Electronics and suitable for automotive ECU refurbishment, industrial sensor node production, and legacy medical device service programs requiring stable component supply and long-term traceability.
Supply support for MC68HC11E0MFNE2 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's embedded controller heritage.
The M68HC11E family was engineered for cost-sensitive, high-reliability embedded control in automotive and industrial environments where deterministic real-time response, on-chip nonvolatile memory, and toolchain maturity were essential design requirements.
FAQ
What is the maximum operating frequency of the MC68HC11E0MFNE2?
The MC68HC11E0MFNE2 supports a maximum bus frequency of 2 MHz, derived from its internal clock generator. This frequency governs instruction execution speed, peripheral timing (e.g., SCI baud rate generation), and ADC conversion time. Operation above this limit risks timing violations and undefined behavior, as confirmed in Section 10.1 of the Rev. 5.1 datasheet.
Does the MC68HC11E0MFNE2 support in-system EPROM programming?
Yes, the MC68HC11E0MFNE2 supports in-system EPROM programming via the VPPE/XIRQ pin, which enables application of programming voltage during write cycles. This capability requires proper sequencing of the EPROM Programming Control Register and adherence to timing specifications in Section 2.4 of the datasheet. The MC68HC11E0MFNE2 does not require an external EPROM programmer for field updates.
What is the function of the E-clock output on the MC68HC11E0MFNE2?
The E-clock output on the MC68HC11E0MFNE2 provides a synchronous, buffered version of the internal system clock at half the bus frequency (e.g., 1 MHz for a 2 MHz bus). It serves as a timing reference for external logic, test instrumentation, or co-processor synchronization, and is detailed in Section 1.4.4 of the M68HC11E Family Data Sheet.
How much EEPROM memory does the MC68HC11E0MFNE2 include, and what is its endurance rating?
The MC68HC11E0MFNE2 integrates 512 bytes of on-chip EEPROM with guaranteed 10,000 write/erase cycles and 10-year data retention at 85°C. This memory is used for storing calibration data, configuration parameters, or runtime variables that must persist across power cycles, as specified in Section 2.5 of the datasheet.
Can the MC68HC11E0MFNE2 operate in low-power Stop mode with serial wakeup capability?
Yes, the MC68HC11E0MFNE2 supports Stop mode with SCI-based wakeup via idle-line or address-mark detection, allowing it to remain in ultra-low-power state until a valid serial command is received. This feature is implemented using the SCICR2 register and documented in Section 7.5 of the datasheet, enabling battery-powered remote sensor nodes.
MC68HC11E0MFNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 52-LCC (J-Lead)
- Series:
- HC11
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC11
- Core Size:
- 8-Bit
- Speed:
- 2MHz
- Connectivity:
- SCI, SPI
- Peripherals:
- POR, WDT
- Number of I/O:
- 38
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 8x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC11E0MFNE2 FAQ
1.How can I place an order for MC68HC11E0MFNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC11E0MFNE2 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 MC68HC11E0MFNE2 reliable?
The price and inventory of MC68HC11E0MFNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC11E0MFNE2 is usually 5 days.
3.What payment methods are accepted for MC68HC11E0MFNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC11E0MFNE2 transactions.
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4.How is shipping managed for MC68HC11E0MFNE2?
MC68HC11E0MFNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC11E0MFNE2 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 MC68HC11E0MFNE2?
For technical support, including MC68HC11E0MFNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC11E0MFNE2 requirements.
6.How does Aetrix verify that MC68HC11E0MFNE2 is sourced from the original manufacturer or authorized distributors?
All MC68HC11E0MFNE2 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 MC68HC11E0MFNE2 meets industry standards.
7.What is the process for return or replacement of MC68HC11E0MFNE2?
All MC68HC11E0MFNE2 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC11E0MFNE2, 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 MC68HC11E0MFNE2 part is unused and in its original packaging.
Return procedure for MC68HC11E0MFNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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