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NXP Semiconductors MC711K4CFNE3
- Part No.:
- MC711K4CFNE3
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 84-LCC (J-Lead)
- Datasheet:
-
MC711K4CFNE3.pdf
- Description:
- IC MCU 8BIT 24KB OTP 84PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,177
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Product details
Overview
MC711K4CFNE3 from Freescale Semiconductor is an 8-bit HCMOS microcontroller unit (MCU) in the M68HC11K family, featuring 4 KB of OTPROM, 192 bytes of RAM, and integrated peripherals including SCI, SPI, A/D converter, PWM, and timer subsystems. It operates at up to 2 MHz bus frequency and supports single-chip and expanded modes for embedded control in industrial instrumentation and automotive subsystems.
For engineers reviewing the MC711K4CFNE3 datasheet, MC711K4CFNE3 pinout, MC711K4CFNE3 application, or MC711K4CFNE3 equivalent, key selection criteria include OTPROM size, 84-pin PLCC package compatibility, on-chip EEPROM programming capability, and support for real-time interrupt and pulse accumulation functions in resource-constrained control designs.
Technical Context
The MC711K4CFNE3 implements the M68HC11 CPU core with Harvard architecture, supporting 16-bit addressing and a 56-instruction set. Its memory map includes dedicated register space, RAM, OTPROM, and EEPROM configuration registers accessible via memory-mapped I/O.
It integrates a 16-bit timer system with input capture, output compare, pulse accumulator, and real-time interrupt capabilities, plus an 8-channel 8-bit analog-to-digital converter with programmable conversion timing and result registers - all controlled through dedicated peripheral control/status registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC core with 56 instructions and 16-bit address bus |
| Memory | 4 KB OTPROM (programmable once), 192 B RAM, EEPROM CONFIG register for security and boot options |
| Bus Frequency | Up to 2 MHz - determines maximum instruction execution rate and peripheral timing margins |
| A/D Converter | 8-channel, 8-bit successive-approximation ADC with software-triggered conversions and result registers |
| Timer System | 16-bit free-running counter with 4 input capture, 5 output compare, pulse accumulator, and RTI channels |
| Serial Interfaces | SCI (asynchronous UART) and SPI (synchronous master/slave) with dedicated control/status registers |
| Package | 84-pin Plastic-Leaded Chip Carrier (PLCC), case 780 - requires specific socket or reflow profile |
Pinout & Package
MC711K4CFNE3 is housed in an 84-pin Plastic-Leaded Chip Carrier (PLCC) per Motorola case 780 mechanical specification, with gull-wing leads and 0.050" lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Digital core power (5 V ±10%) and return; decoupling required within 1 cm |
| AVDD, AVSS | Analog power and ground | Separate 5 V analog supply for A/D converter; must be filtered and isolated from digital noise |
| XTAL / EXTAL | Crystal oscillator inputs | Supports external crystal (1–4 MHz) or TTL-level clock source for system timing reference |
| RESET | Active-low reset input | Asynchronous hardware reset; internal POR circuit ensures valid startup before code execution |
| IRQ / XIRQ | Maskable and non-maskable interrupt inputs | Edge-sensitive inputs triggering vectorized interrupt service routines; XIRQ cannot be disabled by software |
| PORTA–PORTH | Multi-function I/O ports | Configurable as general-purpose I/O, timer/ADC/SPI/SCI signals, or chip selects - direction controlled per port |
Key Features
| Feature | Design Value |
|---|---|
| OTPROM program memory | 4 KB one-time-programmable ROM enables secure firmware storage without external memory footprint |
| On-chip EEPROM CONFIG | Non-volatile configuration register controls COP watchdog enable, memory protection, and boot mode selection |
| Pulse accumulator | Hardware event counter with overflow flag and prescaler - ideal for tachometer or flow meter signal conditioning |
| Real-time interrupt (RTI) | Programmable periodic interrupt source independent of main timer - simplifies time-sliced task scheduling |
| SCI with wakeup capability | Asynchronous serial interface supports low-power wake-on-receive for battery-operated systems |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
Use Scenario: Standalone temperature/humidity sensor node with local display and RS-232 telemetry. IC Role / Device Role / Timing Role: Primary MCU executing sensor polling, linearization, and ASCII protocol framing; RTI provides 10 ms sampling interval. Use Value: Integrated A/D, SCI, and OTPROM eliminate external components, reducing BOM cost and PCB area by ~35% versus discrete solution. | Use Scenario: Door lock actuator controller receiving LIN commands and driving solenoid drivers. IC Role / Device Role / Timing Role: LIN physical layer interface via SCI with software-implemented protocol stack; PWM outputs drive gate drivers for H-bridge. Use Value: Pulse accumulator monitors motor commutation feedback; OTPROM secures calibration data against field reprogramming. |
| Legacy Equipment Retrofit | Appliance Motor Controller |
Use Scenario: Replacement controller for discontinued PLC I/O module requiring identical pin-compatible upgrade. IC Role / Device Role / Timing Role: Drop-in replacement MCU managing discrete I/O expansion via parallel ports and chip select logic. Use Value: 84-pin PLCC footprint matches legacy design; single-chip mode eliminates need for external address latches or glue logic. | Use Scenario: Washing machine drum motor speed controller using zero-cross detection and phase-angle firing. IC Role / Device Role / Timing Role: Timer input capture measures AC line period; output compare triggers TRIAC gate pulses with <1 µs jitter. Use Value: Hardware timer subsystem offloads timing-critical tasks from firmware, ensuring consistent motor torque across voltage fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E9CP | 8 KB EPROM, no OTPROM; 68-pin PLCC; lacks CONFIG register EEPROM functionality | Requires UV erasure for firmware updates; unsuitable for field-programmed security settings | Select when firmware revision cycles are infrequent and UV-erasable prototyping is preferred |
| MC912B32CFUE8 | Enhanced 68HC12 core, 32 KB FLASH, 10-bit A/D, CAN interface; 80-pin QFP | Higher performance and communication capability but incompatible pinout and memory map | Select for new designs needing CAN bus integration and future firmware updates without hardware change |
Compared with MC68HC11E9CP and MC912B32CFUE8, the MC711K4CFNE3 offers optimal balance of OTPROM security, 84-pin PLCC compatibility, and integrated peripherals for cost-sensitive, fixed-function embedded controllers where field reprogramming is unnecessary.
Availability
MC711K4CFNE3 is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, and legacy equipment retrofit projects requiring stable component supply and long-term obsolescence management.
Supply support for MC711K4CFNE3 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, founded in 2004 as a spin-off from Motorola's semiconductor division.
The M68HC11K family was designed for cost-effective, low-power embedded control in automotive, industrial, and appliance applications where deterministic real-time response and on-chip integration reduce system complexity.
FAQ
What is the maximum operating frequency of the MC711K4CFNE3?
The MC711K4CFNE3 supports a maximum bus frequency of 2 MHz, derived from its internal clock generator and external crystal or clock source. This frequency defines the timing for instruction execution, peripheral operation, and I/O transitions. The actual achievable speed depends on supply voltage stability, ambient temperature, and PCB layout integrity - all must comply with Section 12.4 Functional Operating Range in the official datasheet.
Does the MC711K4CFNE3 include flash or EEPROM memory for user data storage?
The MC711K4CFNE3 does not include user-accessible EEPROM or flash memory. It contains 4 KB of one-time-programmable ROM (OTPROM) for firmware and a dedicated CONFIG register with EEPROM-like non-volatility used exclusively for boot configuration and security settings. User data storage requires external memory or battery-backed RAM interfaced via the expansion bus.
Can the MC711K4CFNE3 operate in low-power modes such as stop or wait?
Yes, the MC711K4CFNE3 supports Wait and Stop low-power modes as defined in Section 5.8 of the technical data. In Wait mode, the CPU halts while peripherals remain active; in Stop mode, both CPU and most peripherals halt except for RESET and interrupt wake sources. These modes reduce current consumption to under 100 µA, enabling battery-powered operation in intermittent-sensing applications.
Is the MC711K4CFNE3 pin-compatible with other M68HC11K family members?
The MC711K4CFNE3 is pin-compatible with other 84-pin PLCC variants in the M68HC11K family, including the MC68HC11K4 and MC68HC11KS2. Pin assignments match Figure 2-1 in the technical data, confirming identical signal mapping for VDD, XTAL, PORTA–PORTH, and control pins. However, memory size and OTPROM vs. EPROM differences require firmware validation.
What development tools are supported for the MC711K4CFNE3?
Freescale provided official development support for the MC711K4CFNE3 via the M68HC11 Evaluation System (EVBU), BUFFALO monitor-based debugging, and third-party tools like ImageCraft ICC11 and HiWARE. Legacy toolchains remain functional, though modern IDEs require custom linker scripts and startup code due to the absence of standard CMSIS or vendor SDKs.
MC711K4CFNE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 84-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, PWM, WDT
- Number of I/O:
- 62
- Program Memory Size:
- 24KB (24K x 8)
- Program Memory Type:
- OTP
- EEPROM Size:
- 640 x 8
- RAM Size:
- 768 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:
MC711K4CFNE3 FAQ
1.How can I place an order for MC711K4CFNE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC711K4CFNE3 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 MC711K4CFNE3 reliable?
The price and inventory of MC711K4CFNE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC711K4CFNE3 is usually 5 days.
3.What payment methods are accepted for MC711K4CFNE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC711K4CFNE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC711K4CFNE3?
MC711K4CFNE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC711K4CFNE3 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 MC711K4CFNE3?
For technical support, including MC711K4CFNE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC711K4CFNE3 requirements.
6.How does Aetrix verify that MC711K4CFNE3 is sourced from the original manufacturer or authorized distributors?
All MC711K4CFNE3 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 MC711K4CFNE3 meets industry standards.
7.What is the process for return or replacement of MC711K4CFNE3?
All MC711K4CFNE3 units undergo pre-shipment inspection (PSI). If there is an issue with MC711K4CFNE3, 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 MC711K4CFNE3 part is unused and in its original packaging.
Return procedure for MC711K4CFNE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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