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MCHC11F1CFNE3
MCHC11F1CFNE3
| Part Number | MCHC11F1CFNE3 |
|---|---|
| Manufacturer | NXP Semiconductors (formerly Freescale / Motorola) |
| Category | Integrated Circuits (ICs) > Embedded – Microcontrollers (HC11 Series) |
| Description | 8-Bit Microcontroller, HC11 Core, 3MHz Bus Speed, 512 Bytes EEPROM, 1KB RAM, Non-ROM, 68-PLCC Package, Obsolete Status. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The MCHC11F1CFNE3 is an 8-bit HC11 MCU by NXP (formerly Freescale/Motorola). Running at max 3MHz, this ROMless chip supports external program memory expansion. It integrates 1KB SRAM, 512-byte EEPROM, 8-channel 8-bit ADC, SPI/SCI serial ports, 30 GPIO, built-in POR and WDT. Packaged in industrial 68-pin PLCC, it delivers stable EMC performance for legacy automotive, aerospace and industrial equipment maintenance.
Core Advantages
Ultra-Reliable HC11 Architecture
Proven HC11 core resists thermal noise, EMI and electrical surges, ideal for auto & aerospace scenarios.
Expandable External Memory
ROMless design supports up to 64KB external Flash/EPROM for flexible program development.
On-Chip Data Storage
512-byte erasable EEPROM stores calibration data without extra memory chips.
Full Integrated Peripherals
Built-in reset, watchdog, ADC, serial interfaces and 30 GPIO reduce peripheral BOM cost.
Key Specifications
| Brand | NXP Semiconductors / Freescale (M68HC11 Series) |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free (Pb-Free) |
| EDA/CAD Model | PLCC-68 schematic symbol, layout footprint, and 3D CAD step files are available on request |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | 68-PLCC (24.21mm x 24.21mm) |
| Mounting Type | Surface Mount |
| Surface Marking / Silkscreen | MCHC11F1CFNE3 Marking |
| Core Processor | HC11 (8-Bit Core) |
| Maximum Bus Frequency | 3 MHz (External crystal support up to 12 MHz) |
| Program Memory Type | ROMless (Requires external memory for execution code) |
| RAM Size | 1 KB (1024 Bytes Internal SRAM) |
| EEPROM Size | 512 Bytes (Byte-erasable non-volatile memory) |
| I/O Quantity | 30 Programmable General Purpose I/O Pins |
| A/D Converter | 8-Channel, 8-Bit Resolution ADC |
| Serial Connectivity | 1 x SPI (Serial Peripheral Interface), 1 x SCI (Asynchronous UART) |
| Timer Functions | 16-bit Timer System (3 Input Captures, 4 Output Compares) |
| Built-In Peripheral Modules | POR Power-On Reset, WDT Watchdog Timer |
| Oscillator Type | Internal / External Crystal Selectable (Depends on peripheral circuit) |
| Operating Voltage (VDD) | 4.75V to 5.25V (5V Nominal) |
| Operating Temperature Range | -40°C to +85°C (Industrial-grade qualification) |
| Lifecycle Status | Obsolete / Discontinued Production |
Typical Applications
- Automotive body control modules (BCMs), engine diagnostics, and dashboard instrumentation
- Industrial process control systems, PLCs, and machinery automation maintenance
- Legacy military and aerospace avionics subsystems and telemetry equipment repair
- HVAC climate controllers, industrial motor drives, and boiler controller systems
- Embedded diagnostic equipment, marine navigation instruments, and heavy utility monitoring
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
For datasheet, samples, stock inquiry or bulk price, submit the quick inquiry form, we reply within 24 hours.
Q1: What is the ROMless design of MCHC11F1CFNE3?
A1: This chip has no built-in mask ROM/Flash for firmware. It relies on external EPROM/Flash to store programs, allowing easy firmware upgrade by replacing external memory.
Q2: What’s the service life of its 512-byte EEPROM?
A2: Industrial-grade EEPROM supports at least 10,000 erase/write cycles, with over 10 years data retention for calibration and system data storage.
Q3: Why choose PLCC-68 package for old industrial equipment?
A3: J-shaped pins absorb thermal expansion stress, resist vibration and thermal shock, far more durable than QFP for long-term industrial running devices.
Q4: Can I run this MCU above 3MHz?
A4: No. The E3 suffix limits max internal bus frequency to 3MHz (12MHz external crystal). Overclocking causes timing error and program failure.
Q5: Is MCHC11F1CFNE3 still in mass production?
A5: NXP marked it obsolete and stopped production. We only supply original surplus stock for equipment maintenance & repair.
Q6: Do you provide free samples of this obsolete MCU?
A6: Small sample orders are available with shipping cost covered by buyers; large maintenance projects can apply for sample discounts.
Q7: What devices is this chip commonly used to repair?
A7: Mainly for old automotive controllers, aerospace test equipment, vintage PLC and HVAC industrial control panels.
Q8: Is the supplied stock original authentic?
A8: All inventory are original NXP factory surplus, we can offer photos of marking, packaging for verification before order.
Q9: What’s the lead time for bulk orders?
A9: In-stock items ship within 1-2 working days; if stock is insufficient, we source global surplus inventory within 3-7 days.
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