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NXP Semiconductors MC68HC11K1VFNE4
- Part No.:
- MC68HC11K1VFNE4
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 84-LCC (J-Lead)
- Datasheet:
-
MC68HC11K1VFNE4.pdf
- Description:
- IC MCU 8BIT ROMLESS 84PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,530
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Product details
Overview
MC68HC11K1VFNE4 from Freescale Semiconductor is an 8-bit HCMOS microcontroller unit (MCU) featuring 512 bytes of on-chip EEPROM, 512 bytes of RAM, and 24 KB of ROM. It integrates a 16-bit timer subsystem with input capture, output compare, pulse accumulator, and real-time interrupt capabilities, plus an 8-channel 8-bit analog-to-digital converter. It is used in industrial control systems requiring deterministic timing and embedded sensor interfacing.
For engineers reviewing the MC68HC11K1VFNE4 datasheet, MC68HC11K1VFNE4 pinout, MC68HC11K1VFNE4 application, or MC68HC11K1VFNE4 equivalent, key selection criteria include its single-chip mode operation, EEPROM programmability in-system, SCI/SPI serial interfaces, and support for both wait and stop low-power modes - critical for battery-operated instrumentation and motor control firmware.
Technical Context
The MC68HC11K1VFNE4 implements the M68HC11 CPU core with full instruction set compatibility to the Motorola 6800 architecture. It operates in single-chip mode by default, executing code from internal ROM/EEPROM without external bus expansion. Its memory map includes dedicated register space, RAM, EEPROM, and ROM blocks mapped to fixed address ranges.
Peripheral integration includes a full-duplex Serial Communications Interface (SCI) supporting asynchronous communication up to 19.2 kbps, a synchronous Serial Peripheral Interface (SPI), and a flexible 16-bit timer system with four input capture/compare channels, pulse accumulation, and PWM generation capability via software-controlled registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC core, upward-compatible with 6800 instruction set |
| Max Clock Frequency | 2 MHz internal bus speed (with 4 MHz crystal input and ÷2 divider) |
| On-Chip Memory | 24 KB ROM, 512 B RAM, 512 B EEPROM - enables standalone boot and nonvolatile parameter storage |
| A/D Converter | 8-channel, 8-bit successive-approximation ADC with multiplexed inputs and software-triggered conversion |
| Timer System | 16-bit free-running counter with 4 input capture/compare channels, pulse accumulator, RTI, and PWM support |
| Serial Interfaces | One SCI (asynchronous UART) and one SPI (synchronous master/slave) - no CAN or USB |
| Operating Voltage | 5.0 V ±10% - requires stable single-supply rail; no 3.3 V or dual-voltage operation |
Pinout & Package
MC68HC11K1VFNE4 is housed in an 84-pin Plastic-Leaded Chip Carrier (PLCC) package (Case 780), with leads arranged in a square J-lead configuration suitable for socketed or surface-mount PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Main digital power domain (5 V); decoupling required near pins |
| XTAL, EXTAL | Crystal oscillator input/output | Drives internal oscillator circuit; supports 4 MHz fundamental-mode crystal |
| RESET | Active-low reset input | Asynchronous hardware reset; held low for ≥2 E-cycles to initiate cold start |
| E | External clock output | Provides synchronized 2 MHz E-clock for peripheral timing and external logic sync |
| PORT A (PA0–PA7) | 8-bit bidirectional I/O port | Configurable as general-purpose I/O or dedicated A/D input channels (PA0–PA7) |
| PORT B (PB0–PB7) | 8-bit bidirectional I/O port | General-purpose I/O with internal pull-ups; used for SCI/SPI signal routing in expanded mode |
| SCI TXD/RXD | Serial transmit/receive data | Asynchronous TTL-level UART interface; no RS-232 level shifting onboard |
| SPI MOSI/MISO/SCK/SS | Serial peripheral interface signals | Full-duplex synchronous interface; SS active-low slave select for multi-device daisy chaining |
Key Features
| Feature | Design Value |
|---|---|
| In-system programmable EEPROM | 512 bytes of EEPROM retain calibration data or user settings across power cycles without external memory |
| Single-chip operating mode | No external memory bus required; boots and executes entirely from on-chip ROM/EEPROM - simplifies PCB layout and reduces BOM count |
| Deterministic timer subsystem | 16-bit timer with input capture (±1 E-cycle resolution) and output compare ensures precise event timing for motor commutation or pulse measurement |
| Low-power standby modes | Wait and Stop modes reduce current draw to <100 µA and <10 µA respectively - extends battery life in portable instrumentation |
| Integrated A/D converter | 8-channel 8-bit ADC with software start and result-ready flag enables direct sensor interfacing without external converters |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop DC motor speed regulation using tachometer feedback and PWM drive signals. IC Role / Device Role / Timing Role: MCU executes PID algorithm, reads tachometer pulses via input capture, and generates variable-duty PWM via output compare registers. Use Value: Eliminates need for external timer ICs or dedicated PWM generators; deterministic 2 MHz E-clock ensures consistent loop timing. | Use Scenario: Central body controller managing door lock actuators, window lift motors, and interior lighting dimming. IC Role / Device Role / Timing Role: MCU monitors switch inputs, drives relay/LED outputs, and communicates status over SCI to dashboard cluster. Use Value: On-chip EEPROM stores user preferences (e.g., mirror position); single-chip mode reduces board space and component count. |
| Portable Data Logger | Heating/Cooling Thermostat |
Use Scenario: Battery-powered environmental logger recording temperature, humidity, and light levels at timed intervals. IC Role / Device Role / Timing Role: MCU wakes periodically via Real-Time Interrupt (RTI), samples sensors via A/D, stores results in EEPROM, then re-enters Stop mode. Use Value: Sub-10 µA Stop mode current enables multi-year operation on coin-cell batteries; integrated A/D avoids external signal conditioning. | Use Scenario: Residential HVAC thermostat with local display, keypad, and relay-driven furnace/fan control. IC Role / Device Role / Timing Role: MCU reads thermistor via A/D channel, compares to setpoint, updates display, and toggles heating/cooling relays. Use Value: 512-byte EEPROM retains calibration offsets and user schedules across power loss; SCI allows firmware updates via PC connection. |
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 but 512 B RAM, 512 B EEPROM, 12 KB ROM; 80-pin QFP package | Lacks A/D converter and reduced timer channel count; no pulse accumulator | Select when lower memory footprint suffices and analog sensing is not required |
| MC68HC11A8CFN | Enhanced variant with 20 KB ROM, same 512 B EEPROM/RAM; adds COP watchdog and enhanced SCI baud rate range | Higher ROM capacity supports larger firmware; identical peripheral set and pinout compatibility in 84-pin PLCC | Prefer for new designs needing extended program space and improved reliability features |
Compared with MC68HC11E9CP, the MC68HC11K1VFNE4 provides full A/D and richer timer functionality at the cost of slightly higher pin count; versus MC68HC11A8CFN, it offers identical peripherals but less ROM - making it optimal for cost-sensitive, analog-intensive legacy control applications.
Availability
MC68HC11K1VFNE4 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, portable data logging, and HVAC thermostat applications requiring stable component supply and long-term obsolescence management.
Supply support for MC68HC11K1VFNE4 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 MC68HC11K1VFNE4 belongs to the M68HC11K family - a line of cost-optimized, single-chip microcontrollers targeting deterministic real-time control in resource-constrained industrial and automotive subsystems.
FAQ
What is the maximum operating frequency of the MC68HC11K1VFNE4?
The MC68HC11K1VFNE4 operates with a maximum internal bus frequency of 2 MHz, derived from a 4 MHz crystal connected to XTAL/EXTAL pins and divided by two internally. This E-clock governs all CPU and peripheral timing; exceeding 2 MHz violates electrical specifications and may cause erratic behavior or data corruption in the MC68HC11K1VFNE4.
Does the MC68HC11K1VFNE4 support in-system programming of its EEPROM?
Yes, the MC68HC11K1VFNE4 supports in-system programming of its 512-byte EEPROM via standard on-chip commands executed from RAM or ROM. No external high-voltage programmer is needed - firmware can write calibration data or configuration parameters directly during normal operation of the MC68HC11K1VFNE4.
What package type is used for the MC68HC11K1VFNE4?
The MC68HC11K1VFNE4 uses an 84-pin Plastic-Leaded Chip Carrier (PLCC) package (Case 780), with J-shaped leads compatible with through-hole sockets or surface-mount reflow. This package is distinct from QFP or LQFP variants used by other M68HC11K family members like the MC68HC11E9CP.
Can the MC68HC11K1VFNE4 operate in low-power modes?
Yes, the MC68HC11K1VFNE4 supports Wait and Stop low-power modes. In Stop mode, current consumption drops below 10 µA while retaining RAM and register contents; Wake-up occurs via RESET, IRQ, or XIRQ. This capability is essential for extending battery life in portable devices using the MC68HC11K1VFNE4.
Is there a CAN interface integrated into the MC68HC11K1VFNE4?
No, the MC68HC11K1VFNE4 does not include a Controller Area Network (CAN) interface. It provides only SCI (UART) and SPI serial peripherals. CAN functionality requires external transceivers and protocol stack implementation - the MC68HC11K1VFNE4 itself lacks native CAN controller hardware.
MC68HC11K1VFNE4 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:
- 37
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC11K1VFNE4 FAQ
1.How can I place an order for MC68HC11K1VFNE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC11K1VFNE4 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 MC68HC11K1VFNE4 reliable?
The price and inventory of MC68HC11K1VFNE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC11K1VFNE4 is usually 5 days.
3.What payment methods are accepted for MC68HC11K1VFNE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC11K1VFNE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HC11K1VFNE4?
MC68HC11K1VFNE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC11K1VFNE4 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 MC68HC11K1VFNE4?
For technical support, including MC68HC11K1VFNE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC11K1VFNE4 requirements.
6.How does Aetrix verify that MC68HC11K1VFNE4 is sourced from the original manufacturer or authorized distributors?
All MC68HC11K1VFNE4 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 MC68HC11K1VFNE4 meets industry standards.
7.What is the process for return or replacement of MC68HC11K1VFNE4?
All MC68HC11K1VFNE4 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC11K1VFNE4, 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 MC68HC11K1VFNE4 part is unused and in its original packaging.
Return procedure for MC68HC11K1VFNE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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