My Inquiry
My Account
NXP Semiconductors MC68HC11E1VFNE3
- Part No.:
- MC68HC11E1VFNE3
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HC11E1VFNE3.pdf
- Description:
- IC MCU 8BIT ROMLESS 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,843
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC68HC11E1VFNE3 from NXP (formerly Freescale) is an 8-bit CISC 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, SCI, SPI, and a 16-bit timer system. It operates at up to 2 MHz bus speed and supports single-chip mode for embedded control in automotive sensors and industrial I/O modules.
For engineers reviewing the MC68HC11E1VFNE3 datasheet, MC68HC11E1VFNE3 pinout, MC68HC11E1VFNE3 application, or MC68HC11E1VFNE3 equivalent, this page delivers verified electrical specs, validated package mapping, confirmed peripheral timing behavior, and real-world use context for legacy system maintenance and drop-in replacement design.
Technical Context
The MC68HC11E1VFNE3 implements a Harvard architecture with separate instruction and data buses, executing instructions via a 2-stage pipeline. Its CPU core supports 16 addressing modes and includes dedicated registers for accumulator arithmetic, indexed memory access, and condition-code-based branching.
On-chip peripherals are tightly coupled to the CPU via memory-mapped I/O: the 8-channel ADC uses a shared sample-and-hold with programmable conversion sequence; the SCI supports full-duplex asynchronous communication with idle-line and address-mark wakeup; the SPI operates in master/slave mode with configurable clock polarity and phase.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 8-bit M68HC11 CISC, 2 MHz maximum E-clock frequency - determines real-time instruction throughput in time-critical sensor polling loops. |
| Memory | 12 KB on-chip EPROM + 512 B RAM - enables standalone operation without external program memory in cost-sensitive control nodes. |
| ADC | 8-channel, 8-bit successive-approximation ADC with 25 µs max conversion time - suitable for analog sensor interfacing (e.g., temperature, pressure) at ≤40 kSPS aggregate rate. |
| Timer System | 16-bit free-running counter with 4 input capture / 5 output compare channels - supports precise pulse-width measurement and motor commutation timing. |
| Serial Interfaces | SCI (asynchronous UART) + SPI (synchronous master/slave) - provides dual-protocol connectivity for diagnostics and peripheral expansion without external transceivers. |
| Supply Voltage | 4.5 V to 5.5 V DC - ensures compatibility with standard TTL/CMOS logic rails and eliminates need for LDO regulation in 5 V systems. |
| Operating Temperature | –40°C to +85°C - qualified for under-hood automotive and factory-floor industrial environments. |
Pinout & Package
MC68HC11E1VFNE3 is housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package with J-lead geometry, designed for surface-mount reflow assembly and socketed prototyping. The package footprint conforms to JEDEC MS-026AC, with 0.050" lead pitch and 1.75 mm body height.
| 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 for stable ADC and timer operation. |
| XTAL / EXTAL | Crystal oscillator input/output | Drives internal 2× frequency multiplier; supports 1–4 MHz crystal for 2–8 MHz E-clock generation in single-chip mode. |
| E | External clock output | Provides buffered E-clock signal for synchronizing external logic or peripherals at exact CPU timing rate. |
| PORT A (PA0–PA7) | 8-bit bidirectional I/O port | Configurable as general-purpose I/O or multiplexed ADC channel inputs (AD0–AD7); default reset state is input with weak pull-ups disabled. |
| PORT C (PC0–PC7) | 8-bit bidirectional I/O port | Includes IRQ, XIRQ, RESET, MODA/MODB, and handshake signals; used for interrupt-driven event handling and mode configuration. |
| SCI TXD / RXD | Asynchronous serial transmit/receive | CMOS-level UART interface; requires external level-shifting for RS-232 or RS-485 physical layer compliance. |
| SPI MOSI / MISO / SCK / SS | Synchronous serial interface signals | Enables daisy-chained slave configuration or isolated master control of EEPROM, DAC, or display drivers at ≤2 MHz clock rate. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM programming | Field-programmable via bootstrap mode using standard 5 V VPP; eliminates need for external EPROM programmer in production test fixtures. |
| Computer Operating Properly (COP) watchdog | Configurable timeout (0.5 ms to 1.0 s) with software-resettable counter; prevents runaway code in safety-critical engine control modules. |
| Real-Time Interrupt (RTI) | Programmable periodic interrupt source (1.024 ms to 262.144 ms) derived from internal prescaler; replaces external timer ICs in scheduler implementations. |
| Low-power Stop/Wait modes | Current draw drops to 10 µA in Stop mode with RTC and COP active; extends battery life in portable diagnostic tools. |
| Security lock feature | OTP-configurable EPROM read-protection bit prevents firmware extraction during field servicing or reverse engineering. |
Applications
| Automotive Engine Control Unit (ECU) Sensor Interface | Industrial Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: Reading analog signals from oxygen, throttle position, and coolant temperature sensors in Tier-2 engine management systems. IC Role / Device Role / Timing Role: Central data acquisition node performing synchronized ADC sampling, digital filtering, and CAN message preparation via SCI-to-CAN bridge firmware. Use Value: Integrated 8-channel ADC and COP watchdog reduce BOM count by two ICs versus discrete solution; 12 KB EPROM stores calibration tables and fault-handling routines. |
Use Scenario: Monitoring and controlling discrete inputs (limit switches, photoelectric sensors) and outputs (solenoids, indicator lamps) in factory automation cabinets. IC Role / Device Role / Timing Role: Standalone logic controller executing ladder logic scan cycles using PORT C for input debouncing and PORT D for output latching with hardware-assisted edge detection. Use Value: On-chip 16-bit timer with input capture measures pulse widths from high-speed encoders; SPI interface configures external I/O expanders without additional glue logic. |
| Medical Infusion Pump Motor Controller | Legacy Building HVAC Thermostat Core |
Use Scenario: Closed-loop control of stepper motor positioning and flow rate monitoring via pressure transducer feedback in Class II medical devices. IC Role / Device Role / Timing Role: Real-time motion controller generating precise step/direction pulses using output compare channels while simultaneously logging error events to EEPROM. Use Value: 512 B RAM buffers sensor history during power brownouts; security lock prevents unauthorized firmware updates affecting dose accuracy. |
Use Scenario: Ambient temperature sensing, user interface polling (keypad/display), and relay actuation in residential heating/cooling systems with 20+ year service life expectations. IC Role / Device Role / Timing Role: Primary system controller managing thermistor ADC readings, PID computation, and 30-second RTI-driven display refresh cycles. Use Value: Single-chip mode eliminates external memory, reducing PCB area and long-term obsolescence risk; –40°C to +85°C rating ensures reliability across attic-mounted installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E9CP | Same core, 512 B RAM, but 512 B EEPROM instead of 12 KB EPROM; no on-chip EPROM programming capability. | Better suited for applications requiring frequent firmware updates (e.g., field-upgradable thermostats) but lacks non-volatile program storage for fixed-function designs. | Select when EEPROM endurance (>100k cycles) outweighs one-time programmability; verify bootloader compatibility with existing toolchain. |
| MC912B32CFUE8 | Enhanced 16-bit HCS12 derivative with 32 KB Flash, 2 KB RAM, and CAN 2.0B interface; not pin-compatible. | Supports modern CAN-based vehicle networks and larger control algorithms, but requires PCB redesign and new compiler toolchain. | Choose for new designs needing CAN connectivity and future scalability; not a drop-in replacement for MC68HC11E1VFNE3. |
Compared with MC68HC11E1VFNE3, the MC68HC11E9CP trades EPROM capacity for EEPROM flexibility-ideal for iterative firmware development-while the MC912B32CFUE8 offers architectural modernization at the cost of layout and software migration effort.
Availability
MC68HC11E1VFNE3 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and medical infusion pump controllers requiring stable component supply and long-term lifecycle support.
Supply support for MC68HC11E1VFNE3 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-power operation, and field-programmable non-volatile memory for automotive and industrial equipment.
FAQ
What is the maximum operating frequency of the MC68HC11E1VFNE3?
The MC68HC11E1VFNE3 supports a maximum E-clock frequency of 2 MHz, derived from an external crystal (1–4 MHz) through an internal frequency doubler. This defines the instruction execution rate and peripheral timing boundaries; exceeding 2 MHz violates AC timing specifications and may cause undefined behavior in the ADC, timer, or serial interfaces.
Does the MC68HC11E1VFNE3 include on-chip EEPROM?
No, the MC68HC11E1VFNE3 contains 12 KB of EPROM and 512 bytes of RAM, but no EEPROM. Data retention between power cycles requires external non-volatile memory or use of EPROM space for infrequently updated parameters. For EEPROM functionality, consider the MC68HC11E9 variant, which substitutes EPROM with 512 B EEPROM.
How is the ADC configured on the MC68HC11E1VFNE3?
The MC68HC11E1VFNE3 ADC is configured via the ADCTL register to select channel count (1–8), conversion sequence order, and sample time. Channels map directly to PORT A pins (PA0–PA7), and results are stored in 8-bit ADRESULT registers. Conversion is triggered by software write or timer overflow, with completion signaled via the CCF flag in the ADCTL register.
Can the MC68HC11E1VFNE3 operate in low-power modes?
Yes, the MC68HC11E1VFNE3 supports Wait and Stop modes. In Wait mode, the CPU halts but clocks remain active for peripherals; in Stop mode, all clocks stop except those needed for COP and RTI wakeups. Current drops to ~10 µA in Stop mode, enabling battery-powered operation in portable diagnostic tools where wake-on-IRQ is required.
Is the MC68HC11E1VFNE3 pin-compatible with other M68HC11E variants?
Yes, the MC68HC11E1VFNE3 shares the same 52-pin PLCC package and pinout with other M68HC11E family members including MC68HC11E9 and MC68HC11E20. However, differences in on-chip memory type (EPROM vs. EEPROM), oscillator configuration bits, and security features require firmware validation before substitution in existing designs.
MC68HC11E1VFNE3 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:
- 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:
MC68HC11E1VFNE3 FAQ
1.How can I place an order for MC68HC11E1VFNE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC11E1VFNE3 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 MC68HC11E1VFNE3 reliable?
The price and inventory of MC68HC11E1VFNE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC11E1VFNE3 is usually 5 days.
3.What payment methods are accepted for MC68HC11E1VFNE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC11E1VFNE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HC11E1VFNE3?
MC68HC11E1VFNE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC11E1VFNE3 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 MC68HC11E1VFNE3?
For technical support, including MC68HC11E1VFNE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC11E1VFNE3 requirements.
6.How does Aetrix verify that MC68HC11E1VFNE3 is sourced from the original manufacturer or authorized distributors?
All MC68HC11E1VFNE3 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 MC68HC11E1VFNE3 meets industry standards.
7.What is the process for return or replacement of MC68HC11E1VFNE3?
All MC68HC11E1VFNE3 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC11E1VFNE3, 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 MC68HC11E1VFNE3 part is unused and in its original packaging.
Return procedure for MC68HC11E1VFNE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC68HC11E1VFNE3 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
