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NXP Semiconductors MC68HC11E0CFNE2
- Part No.:
- MC68HC11E0CFNE2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HC11E0CFNE2.pdf
- Description:
- IC MCU 8BIT ROMLESS 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,696
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Product details
Overview
MC68HC11E0CFNE2 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 a 8-channel 8-bit ADC, dual serial interfaces (SCI and SPI), and a 16-bit timer system with input capture/output compare. It operates at up to 2 MHz bus speed and supports single-chip mode for embedded control in automotive body electronics and industrial sensor nodes.
For engineers reviewing the MC68HC11E0CFNE2 datasheet, MC68HC11E0CFNE2 pinout, MC68HC11E0CFNE2 application, or MC68HC11E0CFNE2 equivalent, key selection criteria include EPROM programmability, on-chip EEPROM retention (100 years), SCI wakeup capability, and compatibility with legacy HC11 development tools like EVBU and PCbug11.
Technical Context
The MC68HC11E0CFNE2 implements the M68HC11 CPU core with full instruction set compatibility to the Motorola 6800, supporting 16 addressing modes and a 16-bit program counter. Its memory subsystem includes mask-programmed EPROM (12 KB), user-programmable EEPROM (512 B), and volatile RAM (512 B), all mapped into a unified 64 KB address space.
Peripherals are tightly coupled via internal buses: the 8-channel ADC uses a dedicated 8-bit successive-approximation converter with software-selectable conversion time (8–26 µs); the SCI supports asynchronous full-duplex communication with idle-line and address-mark wakeup; the SPI operates in master/slave mode with programmable clock polarity and phase.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC architecture with 16-bit ALU and 16 addressing modes |
| Max Bus Frequency | 2 MHz - determines maximum instruction throughput and peripheral timing margins |
| On-Chip Memory | 12 KB EPROM + 512 B EEPROM + 512 B RAM - enables standalone operation without external memory |
| ADC Resolution | 8-bit with 8 input channels - sufficient for basic sensor interfacing (e.g., temperature, potentiometer) |
| Serial Interfaces | 1× SCI (asynchronous) + 1× SPI (synchronous) - supports host communication and daisy-chained peripherals |
| Timer System | 16-bit free-running counter with 4 input capture / 5 output compare channels - enables precise event timing and PWM generation |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard TTL/CMOS logic rails and automotive 5 V systems |
Pinout & Package
MC68HC11E0CFNE2 is housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package with 0.050" lead pitch, designed for surface-mount reflow assembly and socket-based prototyping. The package provides thermal and mechanical stability for industrial temperature operation (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 5 V power domain; decoupling required within 1 cm of pins |
| XTAL, EXTAL | Crystal oscillator inputs | Supports 1–4 MHz crystal or external clock source for system timing |
| E | External clock output | Provides synchronized 2× bus clock for external logic or test equipment |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes memory map |
| IRQ, XIRQ | Maskable and non-maskable interrupt inputs | Enable priority-based event handling; XIRQ bypasses I-bit masking |
| PORT A–E | Programmable bidirectional I/O ports | Port A: 8-bit analog/digital multiplexed; Ports B–E: digital I/O with direction control |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM programming | Field-programmable via on-chip algorithm; eliminates need for external PROM programmer |
| EEPROM data retention | Guaranteed 100-year data retention at 85°C - suitable for calibration storage in unattended systems |
| SCI wakeup capability | Idle-line and address-mark detection allows wake from Stop mode using serial activity - reduces system power |
| Hardware COP watchdog | Dedicated computer operating properly circuit with timeout configurable via CONFIG register - prevents runaway code |
| Single-chip mode operation | Full functionality with no external memory or glue logic - simplifies PCB layout and BOM |
Applications
| Automotive Body Control | Industrial Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main controller executing state machines, reading switch inputs, driving relays/LEDs, and communicating via LIN or discrete UART. Use Value: On-chip EEPROM stores user preferences and fault logs; EPROM ensures firmware immutability across vehicle lifetime. | Use Scenario: Standalone environmental monitor collecting temperature, humidity, and voltage data in factory settings. IC Role / Device Role / Timing Role: Data acquisition engine performing periodic ADC sampling, local processing, and buffered SCI transmission to gateway. Use Value: 8-channel ADC supports multi-sensor input; Stop-mode wakeup reduces average current to <10 µA during idle periods. |
| Legacy Equipment Retrofit | Education & Lab Training |
Use Scenario: Replacement controller for aging industrial PLC I/O modules using discontinued microcontrollers. IC Role / Device Role / Timing Role: Pin-compatible functional substitute with identical memory map and peripheral register layout as original HC11 design. Use Value: Binary-compatible instruction set and bootstrap mode enable reuse of existing firmware and debug infrastructure (e.g., EVBU). | Use Scenario: Microcontroller lab platform for teaching assembly language, real-time interrupts, and peripheral interfacing. IC Role / Device Role / Timing Role: Pedagogical target device demonstrating memory-mapped I/O, timer-driven waveform generation, and serial protocol implementation. Use Value: Full documentation, public toolchain support (GCC, naken_asm), and EVBU reference schematics lower learning barrier. |
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, 512 B RAM, but 512 B EPROM + 2 KB EEPROM - less program storage, more nonvolatile data space | Better suited for data-logging over firmware complexity; lacks 12 KB EPROM for large control algorithms | Select when EEPROM capacity > program size; verify bootloader compatibility with existing firmware images |
| MC68HC11F1CFNE2 | Enhanced variant with 20 MHz max bus speed, 2 KB RAM, and added CAN interface - not pin-compatible | Enables higher-speed control loops and networked diagnostics; requires PCB redesign and CAN transceiver | Choose only for new designs requiring CAN connectivity or >2 MHz throughput; not a drop-in replacement |
Compared with MC68HC11E9CP and MC68HC11F1CFNE2, the MC68HC11E0CFNE2 offers optimal balance of program storage (12 KB EPROM), EEPROM (512 B), and proven single-chip reliability for cost-sensitive, low-complexity embedded control where CAN or high-speed operation is unnecessary.
Availability
MC68HC11E0CFNE2 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, legacy equipment retrofit, and education & lab training requiring stable component supply and long-term obsolescence management.
Supply support for MC68HC11E0CFNE2 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 heritage from Motorola's semiconductor division.
The M68HC11E family was engineered for deterministic real-time control in resource-constrained environments, emphasizing code density, low-power operation, and field-programmable nonvolatile memory for automotive and industrial applications.
FAQ
What is the maximum operating frequency of the MC68HC11E0CFNE2?
The MC68HC11E0CFNE2 supports a maximum bus frequency of 2 MHz, derived from an external crystal (1–4 MHz) or oscillator connected to XTAL/EXTAL pins. This corresponds to a 4 MHz internal E-clock, limiting instruction execution to approximately 500 kIPS. The frequency is fixed by the internal PLL divider and cannot be overclocked beyond datasheet specifications.
Does the MC68HC11E0CFNE2 support in-circuit programming of its EPROM?
Yes, the MC68HC11E0CFNE2 supports in-system EPROM programming via its built-in bootstrap monitor. Using the EVBU or compatible hardware, users can download and program the 12 KB EPROM through the SCI interface without removing the device from the board. Programming requires VPP = 12 V applied to the VPPE/XIRQ pin and adherence to timing sequences defined in the datasheet.
How much EEPROM does the MC68HC11E0CFNE2 include, and what is its endurance rating?
The MC68HC11E0CFNE2 integrates 512 bytes of EEPROM with guaranteed 10,000 write/erase cycles and 100-year data retention at 85°C. This EEPROM is mapped into the memory space at $B600–$B7FF and is used for storing calibration constants, configuration parameters, or fault logs that must survive power loss.
Can the MC68HC11E0CFNE2 enter low-power Stop mode, and how is it awakened?
Yes, the MC68HC11E0CFNE2 supports Stop mode with typical current draw below 10 µA. It can be awakened by IRQ, XIRQ, RTI, or SCI activity (idle-line or address-mark detection). The SCI wakeup feature allows serial bus traffic to resume operation without external wake signals, making it ideal for battery-powered remote sensors.
Is the MC68HC11E0CFNE2 pin-compatible with other M68HC11E family members?
The MC68HC11E0CFNE2 shares the same 52-pin PLCC footprint and signal assignment with MC68HC11E9CP and MC68HC11E20CP, enabling direct PCB substitution where memory requirements align. However, differences in EPROM/EEPROM size and CONFIG register defaults require firmware verification before replacement.
MC68HC11E0CFNE2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 52-LCC (J-Lead)
- Series:
- HC11
- Packaging:
- Tray
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC11E0CFNE2 FAQ
1.How can I place an order for MC68HC11E0CFNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC11E0CFNE2 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 MC68HC11E0CFNE2 reliable?
The price and inventory of MC68HC11E0CFNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC11E0CFNE2 is usually 5 days.
3.What payment methods are accepted for MC68HC11E0CFNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC11E0CFNE2 transactions.
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4.How is shipping managed for MC68HC11E0CFNE2?
MC68HC11E0CFNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC11E0CFNE2 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 MC68HC11E0CFNE2?
For technical support, including MC68HC11E0CFNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC11E0CFNE2 requirements.
6.How does Aetrix verify that MC68HC11E0CFNE2 is sourced from the original manufacturer or authorized distributors?
All MC68HC11E0CFNE2 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 MC68HC11E0CFNE2 meets industry standards.
7.What is the process for return or replacement of MC68HC11E0CFNE2?
All MC68HC11E0CFNE2 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC11E0CFNE2, 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 MC68HC11E0CFNE2 part is unused and in its original packaging.
Return procedure for MC68HC11E0CFNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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