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NXP Semiconductors MC68HC11E1VFNE3R
- Part No.:
- MC68HC11E1VFNE3R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HC11E1VFNE3R.pdf
- Description:
- IC MCU 8BIT ROMLESS 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,820
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Product details
Overview
MC68HC11E1VFNE3R from NXP Semiconductors (formerly Freescale) is an 8-bit microcontroller in the M68HC11E family, featuring 512 bytes of on-chip RAM, 12 KB of EPROM, and integrated peripherals including a 8-channel 8-bit ADC, two 16-bit timer modules, SCI, SPI, and parallel I/O ports. It operates at up to 2 MHz bus speed with single-chip or expanded mode support, used in legacy industrial control and automotive body electronics.
For engineers reviewing the MC68HC11E1VFNE3R datasheet, MC68HC11E1VFNE3R pinout, MC68HC11E1VFNE3R application, or MC68HC11E1VFNE3R equivalent, key selection criteria include EPROM-based firmware persistence, on-chip A/D conversion for sensor interfacing, real-time timer functions for motor control timing, and compatibility with legacy HC11 development tools and bootstrap programming.
Technical Context
The MC68HC11E1VFNE3R implements the M68HC11 CPU core with 64 KB address space, supporting indexed, extended, and inherent addressing modes. Its memory map includes configurable RAM/IO mapping, EPROM boot vector, and CONFIG register for mode selection and security lock.
Peripherals are tightly coupled to the CPU via dedicated control/status registers: the 8-channel ADC supports single/multiple conversions with programmable sample time; dual 16-bit timers provide input capture, output compare, and RTI functions; SCI supports full-duplex asynchronous communication with wakeup capability; 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 64 KB address space and 16-bit index registers |
| Memory | 12 KB on-chip EPROM (user-programmable), 512 bytes RAM, no external ROM required in single-chip mode |
| ADC | 8-channel 8-bit successive-approximation ADC with internal reference, 25 µs max conversion time |
| Timers | Two independent 16-bit timer modules supporting input capture, output compare, pulse accumulation, and real-time interrupt |
| Serial Interfaces | SCI (asynchronous UART) and SPI (synchronous master/slave) with separate control/status registers |
| Operating Voltage | 5.0 V ±10% (4.5 V to 5.5 V), specified for commercial temperature range (0°C to +70°C) |
| Package | 52-pin PLCC (Plastic Leaded Chip Carrier), lead-free per RoHS, surface-mount compatible |
Pinout & Package
MC68HC11E1VFNE3R is housed in a 52-pin Plastic Leaded Chip Carrier (PLCC) package with J-lead configuration, designed for socketed or reflow-soldered mounting in space-constrained industrial PCBs. Pinout follows standard M68HC11E family assignment with dedicated VDD/VSS pairs, XTAL/EXTAL oscillator inputs, E-clock output, RESET, IRQ/XIRQ, and five bidirectional I/O ports (A–E).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8, 45–52 | Port A / Port E I/O | 8-bit bidirectional general-purpose I/O with pull-up option; Port A doubles as AD converter channel inputs (AD0–AD7) |
| 9–16 | Port B I/O | 8-bit bidirectional I/O; supports handshake protocol (STRA/STRB) and timer input capture functions |
| 17–24 | Port C I/O | 8-bit bidirectional I/O with direction control register (DDRC); used for system expansion bus control signals in expanded mode |
| 25–32 | Port D I/O | 8-bit bidirectional I/O; includes SCI transmit/receive pins (TXD/RXD) and SPI signals (MISO/MOSI/SCK/SS) |
| 33–36 | System Control | XTAL/EXTAL (crystal oscillator inputs), RESET (active-low reset input), E (asynchronous E-clock output) |
| 37–44 | Power & Ground | VDD (pins 37, 40, 43), VSS (pins 38, 41, 44) - three VDD/VSS pairs for noise reduction and stable operation |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM | 12 KB user-programmable EPROM eliminates need for external program memory and enables field firmware updates via bootstrap mode |
| Integrated ADC | 8-channel 8-bit analog-to-digital converter with internal voltage reference reduces BOM cost and board area for sensor-based control loops |
| Dual 16-bit Timers | Independent timer modules support simultaneous input capture (e.g., encoder position) and output compare (e.g., PWM generation) without CPU overhead |
| SCI with Wakeup | Asynchronous serial interface includes idle-line and address-mark wakeup modes, enabling low-power remote monitoring in battery-backed systems |
| Single-Chip Mode | Full execution from on-chip memory with no external bus interface required - simplifies design and improves EMI performance |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop DC motor speed regulation using hall-effect encoder feedback and PWM drive output. IC Role / Device Role / Timing Role: MCU executes PID algorithm, reads encoder pulses via input capture, generates variable-duty PWM via output compare, and monitors current sense via ADC. Use Value: Dual 16-bit timers enable precise timing of both feedback sampling and actuator output without software polling or external logic. | Use Scenario: Central body controller managing power windows, door locks, and interior lighting with LIN or discrete wiring. IC Role / Device Role / Timing Role: MCU interfaces with switches/sensors via Port A–C, drives relays/LEDs via Port D, communicates status over SCI UART link. Use Value: Integrated 8-channel ADC and multiple I/O ports reduce external components needed for mixed-signal body control functions. |
| Legacy Equipment Retrofit | Embedded Data Logger |
Use Scenario: Replacement controller for discontinued PLC I/O modules requiring EPROM-based firmware and RS-232 diagnostics. IC Role / Device Role / Timing Role: MCU runs stored ladder-logic interpreter from on-chip EPROM, handles discrete I/O scanning, and provides serial debug interface via SCI. Use Value: 12 KB EPROM ensures firmware persistence without battery-backed RAM or external EEPROM, critical for unattended operation. | Use Scenario: Standalone environmental monitor logging temperature/humidity via analog sensors and storing data in on-chip EPROM. IC Role / Device Role / Timing Role: MCU samples sensors via ADC channels, timestamps readings using RTI interrupt, and stores results in EPROM pages via block erase/write sequence. Use Value: On-chip EPROM endurance (≥100 write/erase cycles) and built-in programming control registers enable reliable nonvolatile data storage without external memory ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E9CP | Same M68HC11E core, but 512-byte RAM, 512-byte EEPROM (not EPROM), no on-chip EPROM; requires external program memory or OTPROM variant | Lacks user-programmable EPROM - unsuitable where field firmware update via bootstrap mode is required | Select only if EEPROM-based configuration storage suffices and external program memory is acceptable |
| MC912B32CFUE8 | Enhanced HCS12 derivative with 32 KB Flash, 2 KB RAM, 10-bit ADC, and CAN interface - not pin-compatible or code-compatible | Supports CAN bus networking and larger firmware; requires full hardware/software redesign | Choose for new designs needing CAN or higher performance; not a drop-in replacement for MC68HC11E1VFNE3R |
Compared with MC68HC11E9CP, MC68HC11E1VFNE3R provides field-upgradable firmware via on-chip EPROM, while MC912B32CFUE8 offers modern Flash memory and CAN but demands complete system re-engineering - making MC68HC11E1VFNE3R optimal for maintaining legacy EPROM-based control systems.
Availability
MC68HC11E1VFNE3R is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, legacy equipment retrofit, and embedded data logger applications requiring stable component supply and long-term obsolescence management.
Supply support for MC68HC11E1VFNE3R 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 company formed from the spin-off of Philips' semiconductor division, now specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The M68HC11E family was originally developed by Motorola (later Freescale, then NXP) to deliver cost-effective, EPROM-based 8-bit control for automotive and industrial applications where firmware persistence and peripheral integration were critical.
FAQ
What is the maximum bus frequency supported by the MC68HC11E1VFNE3R?
The MC68HC11E1VFNE3R supports a maximum E-clock frequency of 2 MHz, corresponding to a 4 MHz internal CPU clock (with 2:1 divide). This timing is validated across the commercial temperature range (0°C to +70°C) and 4.5–5.5 V supply, enabling deterministic real-time response for control loops and serial communication baud rates up to 19.2 kbps.
Does the MC68HC11E1VFNE3R include on-chip flash or EEPROM memory?
No, the MC68HC11E1VFNE3R contains 12 KB of one-time programmable EPROM (not flash or EEPROM) and 512 bytes of static RAM. EPROM programming requires UV erasure and high-voltage VPP (12.5 V) during write cycles, and is performed via bootstrap mode using the on-chip programming algorithm - no external programmer is needed for field updates.
Can the MC68HC11E1VFNE3R operate in low-power modes?
Yes, the MC68HC11E1VFNE3R supports Wait and Stop modes. In Wait mode, the CPU halts while peripherals remain active; in Stop mode, the entire system clock is gated except for the real-time interrupt (RTI) circuitry, reducing current draw to ~10 µA. Both modes are entered via SWI instruction and exited by interrupt or reset.
What development tools are compatible with the MC68HC11E1VFNE3R?
The MC68HC11E1VFNE3R is supported by legacy Freescale tools including the M68HC11EVBU evaluation board, PCBUG11 debugger, and ASSEMBLER/LINKER toolchain. It also works with third-party HC11 emulators and open-source GCC-based toolchains targeting the M68HC11 ISA, provided bootstrap-mode programming and memory map constraints are observed.
Is the MC68HC11E1VFNE3R RoHS compliant?
Yes, the MC68HC11E1VFNE3R is RoHS compliant and lead-free, as confirmed by NXP's product change notices and material declarations. The 52-pin PLCC package uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level (MSL) 3 requirements for standard SMT assembly processes.
MC68HC11E1VFNE3R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 52-LCC (J-Lead)
- Series:
- HC11
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC11
- Core Size:
- 8-Bit
- Speed:
- 3MHz
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC11E1VFNE3R FAQ
1.How can I place an order for MC68HC11E1VFNE3R through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC11E1VFNE3R 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 MC68HC11E1VFNE3R reliable?
The price and inventory of MC68HC11E1VFNE3R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC11E1VFNE3R is usually 5 days.
3.What payment methods are accepted for MC68HC11E1VFNE3R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC11E1VFNE3R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HC11E1VFNE3R?
MC68HC11E1VFNE3R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC11E1VFNE3R 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 MC68HC11E1VFNE3R?
For technical support, including MC68HC11E1VFNE3R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC11E1VFNE3R requirements.
6.How does Aetrix verify that MC68HC11E1VFNE3R is sourced from the original manufacturer or authorized distributors?
All MC68HC11E1VFNE3R 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 MC68HC11E1VFNE3R meets industry standards.
7.What is the process for return or replacement of MC68HC11E1VFNE3R?
All MC68HC11E1VFNE3R units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC11E1VFNE3R, 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 MC68HC11E1VFNE3R part is unused and in its original packaging.
Return procedure for MC68HC11E1VFNE3R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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