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NXP Semiconductors MCHC11F1CFNE3R
- Part No.:
- MCHC11F1CFNE3R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
MCHC11F1CFNE3R.pdf
- Description:
- IC MCU 8BIT ROMLESS 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,178
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Product details
Overview
MCHC11F1CFNE3R from Freescale Semiconductor is an 8-bit microcontroller unit (MCU) featuring a 256-byte RAM, 512-byte EEPROM, and 12 KB on-chip ROM. It integrates a 16-bit timer subsystem with input capture/output compare, SCI and SPI serial interfaces, and an 8-channel 8-bit analog-to-digital converter. It targets embedded control in automotive body electronics and industrial sensor nodes.
For engineers reviewing the MCHC11F1CFNE3R datasheet, MCHC11F1CFNE3R pinout, MCHC11F1CFNE3R application, or MCHC11F1CFNE3R equivalent, key selection criteria include its single-chip operating mode, 4 MHz max E-clock frequency, 68-pin PLCC package, and support for WAIT/STOP low-power states - all critical for legacy automotive ECU redesigns and industrial firmware migration projects.
Technical Context
The MCHC11F1CFNE3R implements the MC68HC11 CPU core with full instruction set compatibility to the Motorola 6800. It operates in single-chip mode by default, using internal ROM and EEPROM without external bus expansion. Its memory map includes dedicated register space at $1000–$103F and I/O port registers mapped to $1000–$10FF.
Timing is derived from an external crystal (1–4 MHz) or ceramic resonator connected to XTAL/EXTAL pins, generating an E-clock output synchronized to the internal bus cycle. The MCU supports two reset sources - power-on reset and external active-low RESET - and features a COP watchdog with configurable timeout via the OPTION register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | MC68HC11 8-bit CISC architecture with 16-bit index registers and condition code register |
| Max E-Clock Frequency | 4 MHz - determines maximum instruction execution rate and peripheral timing resolution |
| On-Chip Memory | 12 KB ROM (bootloader + user code), 512-byte EEPROM (nonvolatile data storage), 256-byte RAM (volatile working memory) |
| Analog Input | 8-channel 8-bit ADC with software-selectable conversion sequence and sample-and-hold |
| Serial Interfaces | One full-duplex SCI (asynchronous UART) and one synchronous SPI master/slave interface |
| Timer System | 16-bit timer with four input capture, five output compare channels, real-time interrupt, and pulse accumulator |
| Power Modes | WAIT (CPU halted, peripherals active) and STOP (all clocks gated, wake-up via IRQ/XIRQ/RTI) |
Pinout & Package
Package: 68-pin Plastic Leaded Chip Carrier (PLCC), JEDEC MS-026AC compliant, body size 24.2 mm × 24.2 mm, lead pitch 0.05 inch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD (pins 1, 68) and dual VSS (pins 2, 67) reduce noise coupling and improve decoupling effectiveness |
| RESET | Active-low external reset input | Asynchronous reset signal; initiates hardware initialization sequence and clears CPU registers and memory map configuration |
| E | E-clock output | Provides synchronized system clock reference for external logic or secondary MCUs; frequency = 1× crystal frequency |
| XTAL / EXTAL | Crytal/resonator connection | XTAL (pin 3) drives internal oscillator; EXTAL (pin 4) accepts external clock source up to 4 MHz |
| PORT A (PA0–PA7) | 8-bit bidirectional I/O port | Configurable as general-purpose I/O or dedicated functions including AD0–AD7 analog inputs and timer channel pins |
| PORT B (PB0–PB7) | 8-bit bidirectional I/O port | Supports SCI TXD/RXD, SPI MOSI/MISO/SCK/SS, and timer output compare signals |
| IRQ / XIRQ | Maskable and non-maskable interrupt inputs | IRQ (pin 19) is level-sensitive and maskable; XIRQ (pin 20) is edge-triggered and highest-priority interrupt source |
Key Features
| Feature | Design Value |
|---|---|
| Single-chip operating mode | Enables self-contained operation without external memory or address decoding logic - reduces BOM count and PCB area |
| On-chip EEPROM (512 B) | Persists calibration data, device IDs, or configuration parameters across power cycles without external serial EEPROM |
| SCI with wakeup capability | Supports idle-line and address-mark wakeup modes - allows low-power sleep until targeted serial command arrives |
| Timer input capture with timestamping | Records precise timing of external events (e.g., encoder edges) with 1 µs resolution at 4 MHz E-clock |
| STOP mode current draw | Typical 10 µA - extends battery life in intermittent-sensing applications such as remote sensor nodes |
Applications
| Automotive Body Control Module | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing CAN-linked control logic, managing local I/O, and coordinating with gateway via SCI. Use Value: On-chip EEPROM stores vehicle-specific configuration; 8-bit ADC reads potentiometer feedback from window position sensors. | Use Scenario: Battery-powered wireless node measuring ambient temperature and transmitting readings every 5 minutes. IC Role / Device Role / Timing Role: System controller managing sensor acquisition, SPI communication with thermistor ADC, and SCI-based RF module interface. Use Value: STOP mode draws only 10 µA between measurements; built-in timer triggers periodic wakeup and ADC conversion sequence. |
| Legacy Engine Control Unit Upgrade | Factory Floor Test Fixture Controller |
Use Scenario: Retrofitting older 6805-based ECUs with enhanced diagnostics and flash emulation capability. IC Role / Device Role / Timing Role: Drop-in replacement MCU providing backward-compatible instruction set while adding EEPROM-based fault logging. Use Value: 512-byte EEPROM retains DTC history across ignition cycles; SCI enables diagnostic tool communication via ISO 9141-2 physical layer. | Use Scenario: Automated test station verifying functional behavior of PCBAs before shipment. IC Role / Device Role / Timing Role: Embedded controller sequencing test steps, reading digital I/O responses, and validating analog sensor outputs via ADC. Use Value: 8-channel ADC measures multiple voltage rails simultaneously; PORT B pins directly drive relay drivers and read switch status without glue logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E9CP2 | Same HC11 core but with 512-byte RAM, 2 KB EEPROM, and 512-byte bootstrap ROM; 80-pin QFP package | Higher memory capacity supports larger firmware images and more complex calibration tables | Select when >12 KB ROM or >256-byte RAM is required; not pin-compatible due to 80-pin QFP vs. 68-pin PLCC |
| MC9S12XDP512 | 16-bit S12X core, 512 KB Flash, 32 KB RAM, enhanced CAN modules, and PLL clock generation | Targets next-generation automotive systems requiring CAN FD, faster processing, and larger code footprint | Choose for new designs needing scalability beyond HC11 limits; requires full hardware and software redesign |
Compared with MC68HC11E9CP2 and MC9S12XDP512, the MCHC11F1CFNE3R offers minimal footprint and lowest power in legacy-compatible 8-bit control, making it optimal for cost-sensitive, space-constrained upgrades where memory and performance headroom are limited.
Availability
MCHC11F1CFNE3R is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, legacy ECU upgrades, and factory test fixture controllers requiring stable component supply and long-term lifecycle support.
Supply support for MCHC11F1CFNE3R 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 was a U.S.-based semiconductor company specializing in embedded processors, analog, and connectivity solutions before its acquisition by NXP Semiconductors in 2015.
The MC68HC11 family was designed for cost-sensitive, real-time control applications in automotive, industrial, and appliance markets - emphasizing deterministic timing, on-chip nonvolatile memory, and robust I/O integration.
FAQ
What is the maximum operating frequency of the MCHC11F1CFNE3R?
The MCHC11F1CFNE3R supports a maximum E-clock frequency of 4 MHz, derived from an external crystal or resonator connected to XTAL/EXTAL pins. This defines the upper limit for instruction execution speed and peripheral timing accuracy. The MCHC11F1CFNE3R does not include an internal PLL or frequency multiplier, so system timing remains directly tied to the external oscillator source.
Does the MCHC11F1CFNE3R support in-circuit programming?
No, the MCHC11F1CFNE3R contains factory-programmed 12 KB ROM and cannot be reprogrammed in-system. However, its 512-byte EEPROM is field-programmable via standard MCU instructions and supports byte-level writes and bulk erases. Firmware updates require external programming equipment targeting the ROM during manufacturing, while EEPROM content can be modified during end-product operation.
What package type is used for the MCHC11F1CFNE3R?
The MCHC11F1CFNE3R uses a 68-pin Plastic Leaded Chip Carrier (PLCC) package, specified in Freescale's mechanical drawing 68PLCC. It is surface-mount compatible with standard PLCC sockets or reflow soldering profiles. The part number suffix "FNE3R" explicitly denotes this PLCC variant, distinguishing it from the 80-pin QFP version (e.g., MCHC11F1CFQE3).
Can the MCHC11F1CFNE3R operate in low-power modes?
Yes, the MCHC11F1CFNE3R supports two low-power modes: WAIT and STOP. In WAIT mode, the CPU halts but peripherals remain active; in STOP mode, all clocks are gated and current drops to ~10 µA. Wake-up from STOP is possible via IRQ, XIRQ, RTI, or SCI activity. These modes are essential for battery-operated applications where duty-cycled operation is required, and the MCHC11F1CFNE3R implements them without external components.
Is the MCHC11F1CFNE3R RoHS-compliant?
Yes, the MCHC11F1CFNE3R is RoHS-compliant and Pb-free, as confirmed in Freescale's environmental compliance documentation. Its packaging and assembly meet EU Directive 2011/65/EU requirements. Functionally identical to non-RoHS versions, the MCHC11F1CFNE3R maintains full electrical and thermal specifications while eliminating hazardous substances - critical for global product certifications and modern manufacturing lines.
MCHC11F1CFNE3R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 68-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:
- 30
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- 512 x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.75V ~ 5.25V
- Data Converters:
- A/D 8x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCHC11F1CFNE3R FAQ
1.How can I place an order for MCHC11F1CFNE3R through Aetrix?
Please submit a Request for Quotation (RFQ) for MCHC11F1CFNE3R 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 MCHC11F1CFNE3R reliable?
The price and inventory of MCHC11F1CFNE3R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCHC11F1CFNE3R is usually 5 days.
3.What payment methods are accepted for MCHC11F1CFNE3R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCHC11F1CFNE3R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCHC11F1CFNE3R?
MCHC11F1CFNE3R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCHC11F1CFNE3R 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 MCHC11F1CFNE3R?
For technical support, including MCHC11F1CFNE3R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCHC11F1CFNE3R requirements.
6.How does Aetrix verify that MCHC11F1CFNE3R is sourced from the original manufacturer or authorized distributors?
All MCHC11F1CFNE3R 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 MCHC11F1CFNE3R meets industry standards.
7.What is the process for return or replacement of MCHC11F1CFNE3R?
All MCHC11F1CFNE3R units undergo pre-shipment inspection (PSI). If there is an issue with MCHC11F1CFNE3R, 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 MCHC11F1CFNE3R part is unused and in its original packaging.
Return procedure for MCHC11F1CFNE3R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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