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NXP Semiconductors MC711K4CFNE4
- Part No.:
- MC711K4CFNE4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 84-LCC (J-Lead)
- Datasheet:
-
MC711K4CFNE4.pdf
- Description:
- IC MCU 8BIT 24KB OTP 84PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,047
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Product details
Overview
MC711K4CFNE4 from NXP Semiconductors (formerly Freescale/Motorola) is an 8-bit HCMOS microcontroller unit in the M68HC11K family, featuring 4 KB on-chip OTPROM, 192 bytes RAM, 512 bytes EEPROM, 8-channel 8-bit ADC, SCI and SPI serial interfaces, and a 16-bit timer system with input capture, output compare, and PWM capability. It operates at up to 3 MHz in single-chip mode and targets embedded control in industrial sensors and motor drive subsystems.
For engineers reviewing the MC711K4CFNE4 datasheet, MC711K4CFNE4 pinout, MC711K4CFNE4 application, or MC711K4CFNE4 equivalent, this page delivers verified electrical specs, package mapping to 84-pin PLCC (Case 780), functional role in real-time I/O control, and two validated alternative parts for legacy design continuity and supply assurance.
Technical Context
The MC711K4CFNE4 implements the M68HC11 CPU core with full instruction set compatibility, supporting single-chip, expanded, and bootstrap operating modes. Its memory architecture integrates 4 KB of one-time-programmable ROM, 512 bytes of EEPROM with block protection, and 192 bytes of static RAM - all mapped into a unified 64 KB address space with configurable chip selects.
Peripheral integration includes a full-duplex Serial Communications Interface (SCI) with wakeup and idle-line detection, a synchronous Serial Peripheral Interface (SPI) with master/slave support and mode fault detection, and a flexible timing subsystem comprising a 16-bit timer counter, four input capture channels, five output compare channels, pulse accumulator, real-time interrupt, and four-channel PWM generator.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC core with 64 KB address space and full instruction set compatibility |
| Memory | 4 KB OTPROM (non-erasable program storage), 512 bytes EEPROM (user-configurable nonvolatile data), 192 bytes RAM (volatile working memory) |
| ADC | 8-channel 8-bit analog-to-digital converter with multiplexer, 25 µs conversion time, and selectable reference sources |
| Serial Interfaces | One SCI (asynchronous UART) with baud rate generation and wakeup; one SPI (synchronous master/slave) with 4-wire interface and error flags |
| Timer System | 16-bit timer counter with four input capture, five output compare, pulse accumulator, RTI, and four independent PWM channels |
| Operating Voltage | 5.0 V ±10% supply range, compatible with standard TTL/CMOS logic levels and industrial power rails |
| Max Clock Frequency | 3.0 MHz E-clock (derived from internal oscillator or external crystal), enabling deterministic real-time response within 333 ns instruction cycle |
Pinout & Package
MC711K4CFNE4 is housed in an 84-pin Plastic-Leaded Chip Carrier (PLCC), Case 780, with 0.050" lead pitch and JEDEC-standard footprint. The package supports through-hole mounting and provides full signal access to all on-chip peripherals including dual analog references (VRH/VRL), eight ADC inputs, six parallel I/O ports (A–F), and dedicated serial and timer pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power Supply | Digital core supply (VDD) and ground (VSS); decoupling required within 1 cm for stable 3 MHz operation |
| AVDD, AVSS | Analog Supply | Separate analog power and ground for ADC section; must be filtered independently to minimize noise coupling |
| XTAL / EXTAL | Clock Input | Crystal oscillator input (XTAL) and feedback (EXTAL); supports 1–4 MHz crystals for precise E-clock derivation |
| RESET | Reset Input | Active-low asynchronous reset; requires external pull-up and debounce circuit per Section 2.4 of datasheet |
| IRQ / XIRQ | Interrupt Inputs | Maskable (IRQ) and non-maskable (XIRQ) interrupt request lines; level-sensitive with internal pull-ups |
| PORT A–F | Parallel I/O | Multi-function bidirectional ports; Port A doubles as ADC inputs, Port D as SPI signals (MISO/MOSI/SCK/SS) |
| SCI TXD / RXD | Serial Data | Asynchronous transmit (TXD) and receive (RXD) pins; support RS-232 level-shifting via external drivers |
| OC1–OC5 | Output Compare | Dedicated timer output pins for PWM, pulse generation, or event timing with programmable edge polarity |
Key Features
| Feature | Design Value |
|---|---|
| OTPROM Program Storage | 4 KB factory-programmed or field-programmable ROM enables secure, unalterable firmware deployment without external memory |
| EEPROM Data Retention | 512 bytes of electrically erasable memory with >100,000 write cycles and >10-year data retention at 85°C for calibration or configuration storage |
| Integrated ADC Subsystem | 8-channel 8-bit converter with software-selectable input mux, internal reference option, and automatic channel sequencing for sensor monitoring |
| Real-Time Timer Architecture | 16-bit free-running counter with input capture (event timestamping), output compare (precise waveform generation), and PWM (motor/servo control) |
| Low-Power Operating Modes | Wait, Stop, and Slow modes reduce current consumption to <100 µA in Stop mode, extending battery life in portable instrumentation |
Applications
| Industrial Sensor Node | Motor Drive Control |
|---|---|
Use Scenario: Standalone temperature/humidity sensor node with local data logging and RS-232 telemetry. IC Role / Device Role / Timing Role: Central controller executing ADC sampling, EEPROM-based calibration storage, and SCI-based host communication. Use Value: Eliminates need for external memory or UART IC; 512-byte EEPROM stores sensor offsets and linearization coefficients across power cycles. | Use Scenario: Brushed DC motor speed regulation using closed-loop feedback from tachometer pulses. IC Role / Device Role / Timing Role: Real-time pulse accumulator captures tachometer edges; OC/PWM outputs generate variable-duty drive signals. Use Value: On-chip pulse accumulation and four-channel PWM enable precise speed control without external timing ICs or FPGA logic. |
| Legacy Automotive Subsystem | Programmable Logic Controller I/O Module |
Use Scenario: Dashboard indicator driver receiving CAN messages via external transceiver and controlling LED/lamp outputs. IC Role / Device Role / Timing Role: Protocol-agnostic message handler interfacing to external CAN controller; manages discrete I/O via Ports A–F. Use Value: 6-port parallel I/O with configurable pullups supports direct LED driving and switch sensing; OTPROM ensures firmware immutability in safety-critical contexts. | Use Scenario: DIN-rail mounted I/O expansion module converting Modbus RTU commands into digital output states. IC Role / Device Role / Timing Role: SCI handles Modbus ASCII/RTU framing; Ports B/C/D provide isolated digital outputs under register-mapped control. Use Value: Single-chip solution replaces multi-IC designs; 192-byte RAM buffers Modbus transaction state while EEPROM retains node ID and baud rate settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E9CP | Same M68HC11 core but with 512-byte RAM, no EEPROM, and 512-byte EPROM instead of 4 KB OTPROM | Lacks nonvolatile user data storage; requires external EEPROM for calibration persistence | Select when firmware size ≤512 bytes and EEPROM is implemented externally |
| MC912B32CPVE | Enhanced 16-bit HCS12 core, 32 KB Flash, 2 KB RAM, integrated CAN controller, and higher clock speed (8 MHz) | Not pin-compatible; requires PCB redesign but offers CAN-native communication and larger memory | Select for new designs needing CAN bus integration and future scalability beyond 8-bit constraints |
Compared with MC68HC11E9CP, MC711K4CFNE4 provides integrated EEPROM for field calibration storage without external components; compared with MC912B32CPVE, it offers proven long-term availability and minimal BOM count for cost-sensitive, low-complexity control tasks where CAN is unnecessary.
Availability
MC711K4CFNE4 is available at Aetrix Electronics and suitable for industrial sensor nodes, motor drive subsystems, legacy automotive modules, and programmable logic controller I/O requiring stable component supply and long-lifecycle support.
Supply support for MC711K4CFNE4 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 formed from the spin-off of Freescale Semiconductor and Philips' semiconductor division, specializing in secure connectivity and embedded processing solutions.
The M68HC11K family was designed for cost-sensitive, real-time embedded control in industrial automation, automotive sub-systems, and instrumentation where deterministic timing, integrated peripherals, and long-term manufacturability are critical.
FAQ
What is the maximum operating frequency of the MC711K4CFNE4?
The MC711K4CFNE4 supports a maximum E-clock frequency of 3.0 MHz, derived from its internal oscillator or external crystal (1–4 MHz). This yields a 333 ns minimum instruction cycle time, enabling deterministic real-time response for time-critical I/O tasks such as PWM generation and ADC sampling. The device does not support higher-frequency variants like the 4 MHz M68HC11A8.
Does the MC711K4CFNE4 include on-chip EEPROM, and what is its endurance?
Yes, the MC711K4CFNE4 integrates 512 bytes of on-chip EEPROM with block protection capability. Its specified endurance is ≥100,000 write/erase cycles, and data retention exceeds 10 years at +85°C ambient. This allows reliable storage of calibration coefficients, device configuration, or runtime parameters without external nonvolatile memory.
Is the MC711K4CFNE4 pin-compatible with other M68HC11K family members?
No - the MC711K4CFNE4 uses an 84-pin PLCC (Case 780) package, while other M68HC11K variants like the MC68HC11KS2 use 68-pin PLCC or 80-pin QFP packages. Pinouts differ significantly across packages; migration requires PCB layout revision. Always verify pin assignments against Figure 2-1 in the official MC711K4CFNE4 datasheet.
What development tools are supported for the MC711K4CFNE4?
The MC711K4CFNE4 is supported by legacy Freescale tools including the BUFFALO monitor (bootloader in on-chip ROM), P&E Micro's BDM multilink debug interface, and CodeWarrior Development Studio v5.x. No official support exists for modern IDEs; firmware development relies on ANSI C cross-compilers targeting the M68HC11 architecture and S-record programming.
Can the MC711K4CFNE4 operate in low-power modes, and what are the typical current draws?
Yes, the MC711K4CFNE4 supports Wait, Stop, and Slow modes. In Stop mode (all clocks halted), typical current draw is <100 µA at 5 V and 25°C. Wait mode reduces current to ~1 mA by stopping the E-clock while retaining RAM and register contents. These modes are essential for battery-powered sensor nodes and intermittent-operation systems.
MC711K4CFNE4 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:
- 4MHz
- 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:
MC711K4CFNE4 FAQ
1.How can I place an order for MC711K4CFNE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC711K4CFNE4 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 MC711K4CFNE4 reliable?
The price and inventory of MC711K4CFNE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC711K4CFNE4 is usually 5 days.
3.What payment methods are accepted for MC711K4CFNE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC711K4CFNE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC711K4CFNE4?
MC711K4CFNE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC711K4CFNE4 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 MC711K4CFNE4?
For technical support, including MC711K4CFNE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC711K4CFNE4 requirements.
6.How does Aetrix verify that MC711K4CFNE4 is sourced from the original manufacturer or authorized distributors?
All MC711K4CFNE4 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 MC711K4CFNE4 meets industry standards.
7.What is the process for return or replacement of MC711K4CFNE4?
All MC711K4CFNE4 units undergo pre-shipment inspection (PSI). If there is an issue with MC711K4CFNE4, 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 MC711K4CFNE4 part is unused and in its original packaging.
Return procedure for MC711K4CFNE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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