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NXP Semiconductors MC711E9CFNE2R
- Part No.:
- MC711E9CFNE2R
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC711E9CFNE2R.pdf
- Description:
- IC MCU 8BIT 12KB OTP 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,185
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Product details
Overview
MC711E9CFNE2R from Freescale Semiconductor is a 8-bit HCMOS microcontroller in the M68HC11E family, featuring 512 bytes of on-chip RAM, 12 KB of EPROM, 512 bytes of EEPROM, and integrated A/D converter (8-channel, 8-bit), SCI, SPI, and timer subsystems. It operates at up to 3 MHz in single-chip mode and targets embedded control in automotive body electronics and industrial sensor interfaces.
For engineers reviewing the MC711E9CFNE2R datasheet, MC711E9CFNE2R pinout, MC711E9CFNE2R application, or MC711E9CFNE2R equivalent, key selection criteria include EPROM programmability, on-chip EEPROM security features, 8-bit A/D resolution with selectable conversion speed, and compatibility with legacy HC11 development tools including EVBU and PCbug11.
Technical Context
The MC711E9CFNE2R implements the M68HC11 CPU core with full instruction set compatibility, supporting single-chip and expanded bus modes. Its memory architecture integrates 12 KB EPROM (user-programmable), 512-byte EEPROM (with block protection and byte-erase capability), and 512-byte RAM mapped into a unified 64 KB address space.
Peripherals include an 8-channel 8-bit analog-to-digital converter with software-selectable conversion time (16–32 µs), full-duplex SCI with idle-line and address-mark wakeup, master/slave SPI interface, and a 16-bit timer system with four input capture/compare channels plus real-time interrupt capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC core, binary-compatible with MC6805/MC6808 instruction set |
| EPROM Size | 12 KB on-chip EPROM, UV-erasable and electrically programmable in-system |
| EEPROM Size | 512 bytes with hardware block protection and byte-level erase capability |
| A/D Converter | 8-channel, 8-bit successive-approximation ADC; conversion time configurable from 16 µs to 32 µs |
| Max Clock Frequency | 3 MHz E-clock in single-chip mode; supports external crystal (1–4 MHz) or ceramic resonator |
| I/O Ports | Port A (8-bit bidirectional), Port B (8-bit bidirectional), Port C (8-bit with handshake control), Port D (6-bit parallel I/O), Port E (8-bit analog/digital multiplexed) |
| Supply Voltage | 5.0 V ±10% (4.5 V to 5.5 V); specified for commercial temperature range (0°C to +70°C) |
Pinout & Package
MC711E9CFNE2R is housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package with 0.050" lead pitch, designed for surface-mount assembly and compatible with standard PLCC sockets. Pin assignments follow the M68HC11E9 standard layout per Rev. 5.1 datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power pins for noise isolation; requires local 0.1 µF ceramic decoupling |
| XTAL / EXTAL | Crystal/resonator interface | Drives internal oscillator; supports 1–4 MHz fundamental-mode crystals |
| E | System clock output | Provides buffered E-clock (½ oscillator frequency) for peripheral synchronization |
| RESET | Active-low reset input | Asynchronous reset; internal pull-up ensures valid state on power-up |
| XIRQ/VPPE | Non-maskable interrupt / EPROM programming voltage | Double-function pin: NMI source during operation; 12.5 V VPPE during EPROM programming |
| PORT A[7:0] | 8-bit bidirectional data bus | Primary I/O port; direction controlled by DDRA register; supports handshake protocols |
| PORT E[7:0] | Analog input / digital I/O | Multiplexed: eight A/D input channels (AD0–AD7); digital I/O when A/D disabled |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM programming | Supports in-circuit EPROM programming via XIRQ/VPPE pin at 12.5 V - eliminates need for external programmers |
| EEPROM security lock | Configurable block protection and CONFIG register locking prevent unauthorized readback or reprogramming |
| SCI wakeup modes | Idle-line and address-mark detection enable low-power remote wake from Stop mode using serial activity |
| Timer input capture | Four independent 16-bit input capture registers support precise edge-timing measurement for motor control or encoder inputs |
| Bootstrap mode support | On-chip monitor ROM enables in-system firmware updates without external debugger hardware |
Applications
| Automotive Body Control | Industrial Sensor Interface |
|---|---|
Use Scenario: Central body controller managing door locks, window lifts, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Primary MCU executing real-time control logic, polling switches, driving relays, and communicating via SCI to dashboard cluster. Use Value: Integrated 12 KB EPROM stores vehicle-specific calibration; EEPROM retains user preferences (e.g., mirror position) across power cycles. | Use Scenario: Standalone temperature/humidity sensor node with analog front-end and RS-232 output. IC Role / Device Role / Timing Role: Signal acquisition MCU digitizing sensor outputs via 8-channel A/D, applying linearization in firmware, and formatting data for serial transmission. Use Value: 8-bit A/D resolution and 16–32 µs conversion time meet accuracy and update rate requirements for HVAC monitoring. |
| Legacy Industrial PLC I/O Module | Appliance Motor Control |
Use Scenario: DIN-rail mounted I/O expansion module adding digital input capability to older PLC systems. IC Role / Device Role / Timing Role: Interface MCU handling opto-isolated input scanning, debounce timing, and Modbus RTU framing over SCI. Use Value: Single-chip mode eliminates external memory, reducing BOM cost and PCB area; Port C handshake signals simplify integration with discrete logic. | Use Scenario: Brushed DC motor controller in washing machine drum drive, requiring speed sensing and PWM generation. IC Role / Device Role / Timing Role: Real-time controller reading tachometer pulses via Input Capture, computing error, and updating 8-bit PWM duty cycle via Output Compare. Use Value: Four 16-bit input capture/compare channels enable simultaneous speed feedback and dual PWM outputs for bidirectional control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11A8CP | 8 KB ROM (mask-programmed), no EPROM; 256-byte RAM; same pinout and peripheral set | Lacks field-programmable EPROM and EEPROM - suitable only for high-volume, fixed-function designs | Select when firmware is finalized and volume justifies mask ROM NRE; not suitable for prototyping or field updates. |
| MC68HC11E20CFNE2 | 20 KB EPROM, identical EEPROM/RAM/peripherals; same 52-pin PLCC package and pinout | Higher code density supports larger control algorithms without external memory expansion | Choose when application firmware exceeds 12 KB; maintains full software and hardware compatibility with MC711E9CFNE2R. |
Compared with MC68HC11A8CP, MC711E9CFNE2R enables field firmware updates and secure parameter storage; compared with MC68HC11E20CFNE2, it trades EPROM capacity for lower cost and smaller footprint where 12 KB suffices.
Availability
MC711E9CFNE2R is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, legacy PLC I/O modules, and appliance motor control applications requiring stable component supply and long-term obsolescence management.
Supply support for MC711E9CFNE2R 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 (now part of NXP Semiconductors) was a leading designer of embedded processors, analog, and mixed-signal ICs for automotive, industrial, and consumer markets.
The M68HC11E family - including MC711E9CFNE2R - was engineered for cost-sensitive, real-time control applications demanding on-chip nonvolatile memory, analog integration, and robust EMI immunity in harsh environments.
FAQ
What is the maximum operating frequency of the MC711E9CFNE2R?
The MC711E9CFNE2R supports a maximum E-clock frequency of 3 MHz in single-chip mode. This corresponds to a 6 MHz crystal or resonator input (since E-clock = ½ oscillator frequency). The device is fully characterized across its specified voltage (4.5 V–5.5 V) and temperature (0°C to +70°C) ranges at this speed, ensuring deterministic timing for all peripherals including the A/D converter and timer subsystems.
Does the MC711E9CFNE2R support in-system programming of its EPROM?
Yes, the MC711E9CFNE2R supports in-system EPROM programming using the XIRQ/VPPE pin. During programming, a 12.5 V ±0.5 V voltage must be applied to this pin while executing the on-chip programming algorithm. This capability eliminates the need for external EPROM programmers and enables field firmware updates when used with appropriate high-voltage circuitry and safety interlocks.
How is EEPROM security implemented on the MC711E9CFNE2R?
The MC711E9CFNE2R implements EEPROM security through two mechanisms: (1) Block Protect Register (BPR) bits that lock specific EEPROM sectors against write/erase operations, and (2) CONFIG register programming that disables read access to EEPROM contents after final configuration. Once locked, these protections require a full chip erase (which clears EPROM and EEPROM) to reset - preventing unauthorized firmware extraction or tampering.
Can the MC711E9CFNE2R operate in low-power Stop mode with serial wakeup capability?
Yes, the MC711E9CFNE2R supports Stop mode with SCI-based wakeup. In Stop mode, the CPU and most peripherals halt, reducing current draw to ~10 µA. The SCI module remains active and can detect either idle-line condition (break character) or address-mark pattern on RXD, triggering exit from Stop mode and resuming execution - enabling battery-powered remote sensors to remain dormant until commanded.
What development tools are officially supported for the MC711E9CFNE2R?
Officially supported tools for the MC711E9CFNE2R include the M68HC11EVBU evaluation board, PCbug11 debugger software, and the M68HC711E9PGMR programming module. These tools enable bootstrap-mode firmware loading, EPROM programming via XIRQ/VPPE, and real-time debugging using the on-chip monitor ROM. Application notes AN1060 and EB296 provide validated procedures for secure programming and debug setup.
MC711E9CFNE2R 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:
- 2MHz
- Connectivity:
- SCI, SPI
- Peripherals:
- POR, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 12KB (12K x 8)
- Program Memory Type:
- OTP
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC711E9CFNE2R FAQ
1.How can I place an order for MC711E9CFNE2R through Aetrix?
Please submit a Request for Quotation (RFQ) for MC711E9CFNE2R 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 MC711E9CFNE2R reliable?
The price and inventory of MC711E9CFNE2R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC711E9CFNE2R is usually 5 days.
3.What payment methods are accepted for MC711E9CFNE2R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC711E9CFNE2R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC711E9CFNE2R?
MC711E9CFNE2R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC711E9CFNE2R 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 MC711E9CFNE2R?
For technical support, including MC711E9CFNE2R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC711E9CFNE2R requirements.
6.How does Aetrix verify that MC711E9CFNE2R is sourced from the original manufacturer or authorized distributors?
All MC711E9CFNE2R 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 MC711E9CFNE2R meets industry standards.
7.What is the process for return or replacement of MC711E9CFNE2R?
All MC711E9CFNE2R units undergo pre-shipment inspection (PSI). If there is an issue with MC711E9CFNE2R, 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 MC711E9CFNE2R part is unused and in its original packaging.
Return procedure for MC711E9CFNE2R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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