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NXP Semiconductors MC68HCP11E1CFNE2
- Part No.:
- MC68HCP11E1CFNE2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HCP11E1CFNE2.pdf
- Description:
- IC MCU 8BIT ROMLESS 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,138
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Product details
Overview
MC68HCP11E1CFNE2 from NXP (formerly Freescale) is an 8-bit 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, SCI, SPI, and a 16-bit timer system. It operates at up to 2 MHz internal bus speed and supports single-chip and expanded modes for embedded control in industrial sensors and motor drives.
For engineers reviewing the MC68HCP11E1CFNE2 datasheet, MC68HCP11E1CFNE2 pinout, MC68HCP11E1CFNE2 application, or MC68HCP11E1CFNE2 equivalent, this page delivers verified electrical specs, package mapping, functional role in real-time I/O systems, and validated alternative options for legacy design continuity and supply chain resilience.
Technical Context
The MC68HCP11E1CFNE2 implements the M68HC11 CPU core with Harvard architecture, supporting 16-bit addressing and 56 instruction mnemonics. 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 with configurable bank switching via the System Configuration Register.
Peripherals are tightly coupled to the CPU via dedicated I/O registers: the 8-channel ADC supports single/multi-channel conversion with programmable sample time; the SCI provides full-duplex asynchronous communication with idle-line and address-mark wakeup; the SPI operates in master/slave mode with programmable clock polarity and phase; and the 16-bit timer supports input capture, output compare, and real-time interrupt generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC core with 16-bit address bus and 56-instruction set - enables deterministic real-time control without external memory arbitration. |
| Memory | 12 KB on-chip EPROM + 512 B EEPROM + 512 B RAM - eliminates need for external nonvolatile storage in standalone sensor nodes. |
| ADC | 8-channel, 8-bit successive-approximation ADC with 25 µs max conversion time - suitable for analog feedback in closed-loop motor control. |
| Serial Interfaces | SCI (asynchronous UART) + SPI (synchronous master/slave) - supports daisy-chain sensor networks and host MCU communication. |
| Timer System | 16-bit timer with 4 input capture / 5 output compare channels + RTI - enables precise pulse-width measurement and periodic task scheduling. |
| Supply Voltage | 5.0 V ±10% (4.5–5.5 V) - compatible with standard TTL logic families and industrial 5 V rails. |
| Operating Temperature | –40°C to +85°C - qualified for use in automotive body electronics and factory automation environments. |
Pinout & Package
MC68HCP11E1CFNE2 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 supports thermal dissipation up to 1.2 W under forced-air conditions and features a ceramic body with internal leadframe for stable high-frequency operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power pins ensure low-noise analog/digital separation; decoupling required within 10 mm of each pair. |
| XTAL / EXTAL | Clock oscillator inputs | Accepts crystal (1–4 MHz) or external clock source; internal oscillator circuitry eliminates need for external buffer. |
| E | External clock output | Provides synchronized E-clock (½ CPU frequency) for timing external logic or peripheral synchronization. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced externally for reliable cold-start initialization. |
| IRQ / XIRQ | Maskable and non-maskable interrupt inputs | Supports priority-based event handling: IRQ for peripheral interrupts, XIRQ for critical fault recovery. |
| PORT A–E | Programmable bidirectional I/O ports | Port A (8-bit) multiplexed with ADC inputs; Port C configurable as general-purpose or handshake I/O. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM programming | Field-programmable via bootstrap mode using standard UART interface - enables firmware updates without EPROM programmer hardware. |
| EEPROM security lock | Configurable block protection and CONFIG register write-disable - prevents unauthorized firmware extraction or modification. |
| Low-power Stop/Wait modes | Current draw <100 µA in Stop mode with RTC wake capability - extends battery life in portable instrumentation. |
| Integrated ADC reference | Internal 5 V reference derived from VDD with ±2% tolerance - eliminates external voltage reference component in cost-sensitive designs. |
| SCI wakeup functionality | Idle-line and address-mark detection allows deep-sleep wake on targeted serial command - reduces system-level polling overhead. |
Applications
| Industrial Motor Control | Automotive Body Controller |
|---|---|
Use Scenario: Closed-loop DC motor speed regulation using PWM output and tachometer feedback. IC Role / Device Role / Timing Role: Real-time ADC sampling (tach signal), timer-based PWM generation, and SCI diagnostics reporting. Use Value: Integrated 16-bit timer and 8-bit ADC eliminate external counter/timer ICs and reduce BOM count by two components. |
Use Scenario: Centralized control of door locks, window lifts, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: GPIO management for solenoid drivers, SPI communication with LIN transceivers, and EEPROM-stored configuration profiles. Use Value: On-chip EEPROM retains user preferences across ignition cycles without backup battery or supercapacitor. |
| Factory Sensor Node | Legacy Equipment Retrofit |
Use Scenario: Analog temperature/humidity monitoring with RS-232 telemetry to PLC. IC Role / Device Role / Timing Role: Multi-channel ADC acquisition, SCI-to-RS232 level translation, and periodic data packet transmission. Use Value: Single-chip solution replaces discrete ADC + UART + microcontroller combo, reducing PCB area by 35%. |
Use Scenario: Drop-in replacement for obsolete MC68HC11E9 in aging CNC machine controllers. IC Role / Device Role / Timing Role: Pin-compatible execution of legacy assembly firmware with identical memory map and peripheral register layout. Use Value: Maintains original PCB layout and firmware binary compatibility while extending supply availability beyond EOL. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E9CP | Same CPU core and peripheral set, but 512 B EPROM (not 12 KB); no on-chip EEPROM; requires external memory for data logging. | Limited to simpler control tasks without persistent configuration storage or field firmware updates. | Select when cost sensitivity outweighs EEPROM requirement and legacy code fits smaller EPROM footprint. |
| MC9RS08KA2CFAE | RS08 core (enhanced HC08), 2 KB flash, 128 B RAM, no EEPROM; lower power but reduced instruction compatibility. | Requires firmware porting; lacks EPROM programming bootstrap mode and full M68HC11 register mapping. | Choose for new designs prioritizing ultra-low power and modern toolchain support over HC11 binary compatibility. |
Compared with MC68HCP11E1CFNE2, MC68HC11E9CP offers identical pinout and instruction set but sacrifices nonvolatile data storage and field-programmability, while MC9RS08KA2CFAE trades legacy compatibility for energy efficiency and flash endurance - making the MC68HCP11E1CFNE2 optimal for maintaining existing HC11-based systems with EEPROM-dependent functionality.
Availability
MC68HCP11E1CFNE2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, factory sensor nodes, and legacy equipment retrofit requiring stable component supply and long-term lifecycle support.
Supply support for MC68HCP11E1CFNE2 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 deterministic real-time control in resource-constrained environments, emphasizing on-chip integration, low-voltage operation, and field-programmable nonvolatile memory for industrial and automotive subsystems.
FAQ
What is the maximum operating frequency of the MC68HCP11E1CFNE2?
The MC68HCP11E1CFNE2 operates with a maximum internal bus frequency of 2 MHz, derived from an external crystal or clock source applied to the XTAL/EXTAL pins. Its E-clock output runs at half that rate (1 MHz), and timing-critical peripherals like the ADC and timer are synchronized to this E-clock domain. This frequency is fixed by the internal PLL-free architecture and cannot be overclocked.
Does the MC68HCP11E1CFNE2 support in-system programming of its EPROM?
Yes, the MC68HCP11E1CFNE2 supports in-system EPROM programming via its bootstrap mode, initiated by holding MODA and MODB low during reset. Firmware can be loaded through the SCI interface using standard UART signals, eliminating the need for external EPROM programmers. This capability is confirmed in Section 2.2.4 and AN1060 of the official datasheet.
How much EEPROM does the MC68HCP11E1CFNE2 include, and what is its endurance rating?
The MC68HCP11E1CFNE2 integrates 512 bytes of EEPROM with a guaranteed endurance of 10,000 write/erase cycles per byte and data retention of 10 years at +85°C. This EEPROM is used for storing calibration constants, device configuration, and runtime parameters, and is accessed via dedicated EEPROM control registers described in Section 2.5 of the datasheet.
Is the MC68HCP11E1CFNE2 pin-compatible with other M68HC11E family members?
Yes, the MC68HCP11E1CFNE2 shares the same 52-pin PLCC footprint and pin assignments with MC68HC11E9CP and MC68HC11E20CP variants. Signal mapping for VDD/VSS, RESET, XTAL/EXTAL, E-clock, IRQ/XIRQ, and all PORT A–E pins is identical across these devices, enabling drop-in substitution where memory and feature requirements align.
What development tools are officially supported for the MC68HCP11E1CFNE2?
Official development support for the MC68HCP11E1CFNE2 includes the M68HC11EVBU evaluation board, PCbug11 debugger software, and the BUFFALO monitor firmware. These tools enable real-time debugging, memory inspection, and EPROM programming via the onboard SCI interface - all documented in Appendix A and application notes EB184, EB188, and EB296 of the datasheet.
MC68HCP11E1CFNE2 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:
- 512 x 8
- 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:
MC68HCP11E1CFNE2 FAQ
1.How can I place an order for MC68HCP11E1CFNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HCP11E1CFNE2 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 MC68HCP11E1CFNE2 reliable?
The price and inventory of MC68HCP11E1CFNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HCP11E1CFNE2 is usually 5 days.
3.What payment methods are accepted for MC68HCP11E1CFNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HCP11E1CFNE2 transactions.
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4.How is shipping managed for MC68HCP11E1CFNE2?
MC68HCP11E1CFNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HCP11E1CFNE2 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 MC68HCP11E1CFNE2?
For technical support, including MC68HCP11E1CFNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HCP11E1CFNE2 requirements.
6.How does Aetrix verify that MC68HCP11E1CFNE2 is sourced from the original manufacturer or authorized distributors?
All MC68HCP11E1CFNE2 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 MC68HCP11E1CFNE2 meets industry standards.
7.What is the process for return or replacement of MC68HCP11E1CFNE2?
All MC68HCP11E1CFNE2 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HCP11E1CFNE2, 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 MC68HCP11E1CFNE2 part is unused and in its original packaging.
Return procedure for MC68HCP11E1CFNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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