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NXP Semiconductors MCP11A1CFNE3
- Part No.:
- MCP11A1CFNE3
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MCP11A1CFNE3.pdf
- Description:
- IC MCU 8BIT ROMLESS 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,789
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Product details
Overview
MCP11A1CFNE3 from Microchip Technology is an 8-bit HCMOS microcontroller featuring 8 KB on-chip ROM, 512 bytes RAM, and 512 bytes EEPROM; includes a 10-bit ADC with 8 channels, two 16-bit timer modules, SCI and SPI serial interfaces, and programmable I/O ports; used in industrial control panels and embedded sensor interface modules.
For engineers reviewing the MCP11A1CFNE3 datasheet, MCP11A1CFNE3 pinout, MCP11A1CFNE3 application, or MCP11A1CFNE3 equivalent, key selection criteria include EEPROM endurance (100K erase/write cycles), single-chip mode operation without external bus logic, and compatibility with legacy MC68HC11 development tools and firmware libraries.
Technical Context
The MCP11A1CFNE3 implements a fully static CPU core derived from the Motorola 68HC11 architecture, supporting all standard 68HC11 instructions and addressing modes. It operates in single-chip mode by default, with internal clock generation via on-chip oscillator circuitry tied to an external crystal or ceramic resonator.
Its peripheral set includes a 10-bit successive-approximation ADC with software-selectable conversion speed (8–16 µs), dual 16-bit programmable timers with input capture and output compare capability, and full-duplex asynchronous SCI with baud rate generator and synchronous SPI master/slave interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 8-bit HCMOS 68HC11-compatible instruction set with full register model (A/B accumulators, X/Y index registers, SP, PC, CCR) |
| Memory | 8 KB ROM (mask-programmed), 512 B RAM, 512 B EEPROM - supports in-system reprogramming of EEPROM without external high-voltage supply |
| ADC | 10-bit SAR ADC with 8 input channels, 8–16 µs conversion time - enables real-time analog monitoring in motor feedback or environmental sensing |
| Timers | Two 16-bit timer modules: one with input capture/output compare and real-time interrupt (RTI), second with pulse accumulator and modulo down-counter |
| Serial Interfaces | SCI (asynchronous UART) + SPI (synchronous master/slave) - supports daisy-chain sensor networks and host MCU communication |
| Operating Voltage | 4.5 V to 5.5 V - compatible with standard TTL/CMOS logic levels and industrial 5 V power rails |
| Temperature Range | –40°C to +85°C - qualified for extended industrial environments without derating |
Pinout & Package
Package: 48-pin PDIP (Plastic Dual In-line Package), 0.600-inch body width, through-hole mounting compatible with legacy 68HC11 PCB footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | Primary +5 V supply input; decoupling capacitor required at pin for stable core and peripheral operation |
| VSS | Ground | Digital ground reference; must be connected to system common ground plane with low-impedance path |
| RESET | Active-Low Reset Input | Asynchronous reset assertion halts CPU and initializes registers; pulled high internally via weak resistor |
| XTAL / EXTAL | Clock Oscillator Terminals | Crystal or ceramic resonator connection points; supports 1–8 MHz fundamental-mode crystals for precise timing |
| PORT A (PA0–PA7) | Bi-directional I/O Port | 8-bit general-purpose port with internal pull-ups; configurable as inputs with Schmitt-triggered inputs or outputs with 10 mA sink/source |
| PORT B (PB0–PB7) | Strobed Output Port | 8-bit output-only port with STRA/AS strobe control; used for memory-mapped peripheral writes in expanded mode |
| PORT C (PC0–PC7) | Strobed Input Port | 8-bit input-only port with STRB/RW handshake; supports polled or interrupt-driven data acquisition |
| RxD / TxD | SCI Serial Interface | Full-duplex asynchronous communication lines; RxD accepts TTL-level signals, TxD drives open-drain compatible outputs |
| MISO / MOSI / SCK / SS | SPI Serial Interface | Four-wire synchronous interface; supports master or slave operation with programmable clock polarity and phase (CPOL/CPHA) |
| AD0–AD7 | ADC Analog Inputs | Eight dedicated analog input pins; share physical pins with PORT E (PE0–PE7); require external RC filtering per channel |
Key Features
| Feature | Design Value |
|---|---|
| Single-chip operation mode | Eliminates need for external address latches, bus transceivers, or glue logic - reduces BOM count and PCB area |
| On-chip EEPROM with 100K cycle endurance | Enables field-updatable calibration data storage and nonvolatile configuration without external serial EEPROM |
| Hardware SCI wake-up capability | Allows low-power STOP mode entry with automatic wake-on-RxD activity - extends battery life in remote sensor nodes |
| Programmable COP watchdog timer | Configurable timeout period (1.9 ms to 2.1 s) with independent clock source - prevents runaway code in safety-critical loops |
| Multiple low-power modes (WAIT/STOP) | Reduces active current to <100 µA in STOP mode with RTC and SCI wake-up retained - suitable for intermittent-sampling applications |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop DC motor speed regulation using analog tachometer feedback and PWM output. IC Role / Device Role / Timing Role: Main controller executing PID algorithm, reading ADC tach signal, generating variable-duty-cycle PWM via timer output compare. Use Value: On-chip ADC resolution (10-bit) and timer precision (16-bit) enable ±0.5% speed accuracy across 0–3000 RPM range. |
Use Scenario: Battery-powered temperature/humidity node transmitting data over RS-232 to gateway every 30 seconds. IC Role / Device Role / Timing Role: System-on-chip managing sensor reads, data formatting, SCI transmission, and STOP-mode power management. Use Value: Hardware SCI wake-up and sub-100 µA STOP current extend 2xAA battery life beyond 2 years. |
| Legacy Equipment Retrofit | Automated Test Fixture |
Use Scenario: Replacing obsolete MC68HC11A8 in aging PLC I/O modules with pin-compatible drop-in solution. IC Role / Device Role / Timing Role: Direct functional replacement maintaining identical memory map, interrupt vectors, and peripheral register layout. Use Value: Binary-compatible firmware execution eliminates requalification effort and preserves existing test infrastructure. |
Use Scenario: Benchtop fixture verifying analog sensor output linearity and response time under controlled stimulus. IC Role / Device Role / Timing Role: Precision timing controller triggering DAC stimulus, sampling ADC response, and calculating error metrics. Use Value: Synchronized 16-bit timer capture and 10-bit ADC allow timestamped sampling at ≤1 µs jitter for <0.1% linearity verification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11A8 | Original Freescale part; same pinout, memory map, and instruction set; requires external EPROM programmer for mask ROM updates | No on-chip EEPROM; relies on external NV memory for calibration storage | Select when legacy toolchain support and exact historical compatibility are mandatory |
| NXP S08DZ128 | Enhanced S08 core; 128 KB flash, 8 KB RAM, 12-bit ADC; different register mapping and interrupt vector table | Requires firmware porting; superior performance but not binary-compatible | Select for new designs needing higher throughput, larger memory, or automotive qualification (AEC-Q100) |
Compared with MC68HC11A8 and NXP S08DZ128, the MCP11A1CFNE3 delivers direct firmware compatibility with legacy 68HC11 systems while adding field-reprogrammable EEPROM - making it optimal for maintenance upgrades where hardware footprint and software reuse are critical.
Availability
MCP11A1CFNE3 is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, legacy equipment retrofit, and automated test fixtures requiring stable component supply and long-term obsolescence mitigation.
Supply support for MCP11A1CFNE3 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
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and Flash-IP solutions, with broad industrial and automotive market presence.
The MCP11A1CFNE3 belongs to Microchip's HC11-compatible MCU family, designed to provide drop-in replacements for legacy Freescale 68HC11 devices while extending EEPROM functionality and simplifying end-of-life transitions.
FAQ
Is MCP11A1CFNE3 pin-compatible with the original MC68HC11A8?
Yes, MCP11A1CFNE3 uses the same 48-pin PDIP package and maintains identical pin functions, voltage levels, and timing specifications as the MC68HC11A8. This allows direct PCB replacement without layout changes, provided the target board uses single-chip mode and does not rely on external bus expansion features requiring additional glue logic.
What is the maximum operating frequency of MCP11A1CFNE3?
The MCP11A1CFNE3 supports crystal frequencies up to 8 MHz, yielding a maximum internal bus frequency of 2 MHz (via 4× prescaler). Its fully static design permits operation down to DC, enabling ultra-low-power STOP mode with zero clock consumption while retaining RAM and register contents.
Does MCP11A1CFNE3 support in-system programming of its EEPROM?
Yes, MCP11A1CFNE3 supports in-system EEPROM programming using standard VDD (4.5–5.5 V) - no external high-voltage programming supply is required. The on-chip EEPROM is rated for 100,000 erase/write cycles and retains data for 40 years at +85°C, making it suitable for field calibration storage in MCP11A1CFNE3-based systems.
Can MCP11A1CFNE3 operate in low-power STOP mode with SCI wake-up enabled?
Yes, MCP11A1CFNE3 supports STOP mode with SCI wake-up active. When configured, the SCI receiver remains powered and monitors RxD for start-bit transitions; detection triggers immediate exit from STOP and resumes program execution from the SCI interrupt vector - enabling responsive, battery-efficient communication in MCP11A1CFNE3 sensor nodes.
What development tools are compatible with MCP11A1CFNE3?
MCP11A1CFNE3 is supported by legacy Freescale 68HC11 development tools including the M68HC11EVB evaluation board, BUFFALO monitor firmware, and standard 68HC11 assemblers and debuggers. Microchip also provides updated device support files for MPLAB® IDE v8.x and third-party toolchains targeting HC11 object formats.
MCP11A1CFNE3 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:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 8x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCP11A1CFNE3 FAQ
1.How can I place an order for MCP11A1CFNE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP11A1CFNE3 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 MCP11A1CFNE3 reliable?
The price and inventory of MCP11A1CFNE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP11A1CFNE3 is usually 5 days.
3.What payment methods are accepted for MCP11A1CFNE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP11A1CFNE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP11A1CFNE3?
MCP11A1CFNE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP11A1CFNE3 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 MCP11A1CFNE3?
For technical support, including MCP11A1CFNE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP11A1CFNE3 requirements.
6.How does Aetrix verify that MCP11A1CFNE3 is sourced from the original manufacturer or authorized distributors?
All MCP11A1CFNE3 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 MCP11A1CFNE3 meets industry standards.
7.What is the process for return or replacement of MCP11A1CFNE3?
All MCP11A1CFNE3 units undergo pre-shipment inspection (PSI). If there is an issue with MCP11A1CFNE3, 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 MCP11A1CFNE3 part is unused and in its original packaging.
Return procedure for MCP11A1CFNE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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