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NXP Semiconductors MC68HC711E9VFN2
- Part No.:
- MC68HC711E9VFN2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HC711E9VFN2.pdf
- Description:
- IC MCU 8BIT 12KB OTP 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,216
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Product details
Overview
MC68HC711E9VFN2 from NXP (formerly Freescale) is an 8-bit microcontroller in the M68HC11E family, featuring 512 bytes of on-chip EEPROM, 256 bytes of RAM, and a 2-channel 8-bit A/D converter. It operates at up to 3 MHz, supports single-chip and expanded modes, and includes SCI, SPI, and timer subsystems for embedded control. It is used in industrial sensor interfaces and legacy automotive body-control modules.
For engineers reviewing the MC68HC711E9VFN2 datasheet, MC68HC711E9VFN2 pinout, MC68HC711E9VFN2 application, or MC68HC711E9VFN2 equivalent, key selection criteria include EPROM programmability, 40-pin QFP package compatibility, extended voltage operation (3.0–5.5 V), and bootstrap-mode programming support via serial interface.
Technical Context
The MC68HC711E9VFN2 implements the M68HC11 CPU core with Harvard architecture, supporting 16-bit addressing and 56 instruction mnemonics. Its memory map includes 512-byte EEPROM (user-programmable), 256-byte RAM, and 12 KB of on-chip ROM containing monitor firmware and bootstrap loader.
It integrates dual 8-bit A/D channels with software-selectable conversion time (8–1024 µs), full-duplex SCI with idle-line/address-mark wakeup, and SPI master/slave mode with programmable clock polarity and phase. Reset sources include power-on, external, COP watchdog, and clock monitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC core with 56 instructions and 16-bit address bus |
| Max Clock Frequency | 3 MHz - determines real-time interrupt timing resolution and instruction throughput |
| On-Chip Memory | 512 bytes EEPROM + 256 bytes RAM + 12 KB ROM - enables standalone boot without external code storage |
| A/D Converter | 2-channel, 8-bit, 25 µs typical conversion time - suitable for slow-sampling analog sensors |
| Serial Interfaces | SCI (asynchronous UART) and SPI (synchronous master/slave) - supports daisy-chain peripheral control |
| Supply Voltage | 3.0 V to 5.5 V - allows direct interface with 3.3 V or 5 V logic systems without level shifters |
| Operating Modes | Single-chip, expanded, test, and bootstrap - enables in-system programming and debug via serial port |
Pinout & Package
MC68HC711E9VFN2 is housed in a 40-pin LQFP (7×7 mm, 0.8 mm pitch) package with exposed thermal pad. Pin functions align with standard M68HC11E9 pinout per Rev. 5.1 datasheet Section 1.4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary DC power rails; decoupling required within 10 mm of pins |
| XTAL / EXTAL | Crystal oscillator input/output | Supports 1–4 MHz crystal or external clock source for system timing |
| E | System clock output | Provides E-clock (½ CPU frequency) for synchronous peripheral timing |
| RESET | Active-low reset input | Asynchronous reset; internal pull-up ensures reliable startup without external resistor |
| XIRQ/VPPE | Non-maskable interrupt / EPROM programming voltage | Double-function pin: NMI during operation; 12 V VPPE during EPROM programming |
| PORT A (PA0–PA7) | 8-bit bidirectional I/O port | Configurable as general-purpose I/O or A/D input channels AD0–AD7 |
| PORT D (PD0–PD7) | 8-bit bidirectional I/O port | Includes SCI TXD/RXD, SPI MOSI/MISO/SCK/SS, and timer I/O signals |
Key Features
| Feature | Design Value |
|---|---|
| On-chip 512-byte EEPROM | Persistent nonvolatile storage for calibration data or configuration without external memory |
| Bootstrap programming mode | Enables field firmware updates via SCI using PCbug11 or EVBU tools - no EPROM programmer required |
| Integrated A/D converter | Two 8-bit channels with software-triggered conversion and result registers accessible via memory-mapped I/O |
| Real-time interrupt (RTI) | Programmable periodic interrupt (1.024 ms to 262.144 s) for time-based task scheduling without external timer |
| COP watchdog timer | Configurable timeout (2.048 ms to 1.048576 s) with automatic reset on failure - prevents runaway code execution |
Applications
| Industrial Sensor Interface | Automotive Body Control |
|---|---|
Use Scenario: Monitoring temperature, pressure, and position sensors in factory automation panels. IC Role / Device Role / Timing Role: Central controller executing sensor polling, linearization, and RS-232/485 communication via SCI. Use Value: On-chip A/D and EEPROM eliminate external ADC and NVRAM, reducing BOM count and board space. | Use Scenario: Managing door locks, window lifts, and interior lighting in legacy vehicle platforms. IC Role / Device Role / Timing Role: Real-time I/O coordinator with pulse accumulation for motor feedback and RTI-driven state machine. Use Value: Single-chip mode and 3–5.5 V operation enable direct integration into 12 V automotive power domains with minimal support circuitry. |
| Legacy Industrial PLC Module | Embedded Test Equipment |
Use Scenario: Standalone logic controller in small-scale packaging machinery with discrete I/O expansion. IC Role / Device Role / Timing Role: Master controller managing Port C handshake protocol and SPI-connected I/O expanders. Use Value: Hardware handshaking and SPI slave capability allow deterministic timing for parallel I/O transactions. | Use Scenario: Portable calibration tool for analog signal generators and multimeters. IC Role / Device Role / Timing Role: Data acquisition node performing triggered A/D sampling and serial upload to host PC. Use Value: Bootstrap mode enables field firmware updates via USB-to-serial adapter - no JTAG debugger needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11A8CP | Same M68HC11 core but with 8 KB ROM, no EEPROM, and 48-pin DIP package | Lacks in-field reprogrammability; requires external EPROM for user code storage | Select when fixed firmware and through-hole assembly are preferred over EEPROM flexibility |
| MC912B32CPVE | Enhanced 16-bit HCS12 derivative with 32 KB Flash, CAN interface, and higher clock speed | Not pin-compatible; requires PCB redesign but offers CAN bus support and larger memory | Select for new designs needing CAN connectivity or >10x code space - not a drop-in replacement |
Compared with MC68HC11A8CP and MC912B32CPVE, the MC68HC711E9VFN2 uniquely balances EEPROM-based field update capability, compact 40-pin QFP footprint, and proven reliability in long-lifecycle industrial deployments - making it optimal for maintenance-sensitive legacy upgrades.
Availability
MC68HC711E9VFN2 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body-control modules, and legacy PLC modules requiring stable component supply across extended product lifecycles.
Supply support for MC68HC711E9VFN2 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The M68HC11E family was designed for cost-sensitive, low-power embedded control applications where EEPROM-based firmware persistence, serial in-system programming, and integrated peripherals reduce system complexity.
FAQ
What is the maximum operating frequency of the MC68HC711E9VFN2?
The MC68HC711E9VFN2 operates at a maximum CPU clock frequency of 3 MHz. This corresponds to a maximum E-clock output of 1.5 MHz, which synchronizes peripheral timing. The device is characterized for stable operation across its full 3.0–5.5 V supply range at this speed, with timing margins verified per Section 10.10 of the Rev. 5.1 datasheet.
Does the MC68HC711E9VFN2 support in-system programming?
Yes, the MC68HC711E9VFN2 supports in-system programming via its bootstrap mode, activated by holding MODA and MODB low during reset. This enables firmware updates through the SCI interface using tools like PCbug11 or the M68HC11EVBU - eliminating the need for external EPROM programmers. The 512-byte EEPROM is directly programmable in-circuit.
What are the A/D converter specifications for the MC68HC711E9VFN2?
The MC68HC711E9VFN2 features a two-channel, 8-bit successive-approximation A/D converter with conversion times ranging from 8 µs (fastest) to 1024 µs (slowest), selectable via control register. Input range is 0–VDD, and channels map to PORT A pins PA0 and PA1. Full electrical characteristics, including INL/DNL and offset error, are specified in Section 10.14 of the Rev. 5.1 datasheet.
Is the MC68HC711E9VFN2 pin-compatible with other M68HC11E family members?
The MC68HC711E9VFN2 shares the same 40-pin LQFP pinout as other M68HC11E9 variants (e.g., MC68HC711E9CFN2), including identical signal assignments for VDD/VSS, XTAL/EXTAL, E, RESET, XIRQ/VPPE, and all port signals. However, it is not pin-compatible with 48-pin or 52-pin M68HC11 derivatives due to differing package footprints and signal counts.
What development tools are officially supported for the MC68HC711E9VFN2?
Officially supported tools include the M68HC11EVBU evaluation board, PCbug11 host software, and the M68HC711E9PGMR EPROM programmer. Application notes AN1060 (Bootstrap Mode) and EB296 (Programming with PCbug11 and EVBU) provide validated procedures. NXP also provides legacy CodeWarrior IDE versions compatible with the M68HC11E family.
MC68HC711E9VFN2 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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC711E9VFN2 FAQ
1.How can I place an order for MC68HC711E9VFN2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC711E9VFN2 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 MC68HC711E9VFN2 reliable?
The price and inventory of MC68HC711E9VFN2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC711E9VFN2 is usually 5 days.
3.What payment methods are accepted for MC68HC711E9VFN2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC711E9VFN2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HC711E9VFN2?
MC68HC711E9VFN2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC711E9VFN2 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 MC68HC711E9VFN2?
For technical support, including MC68HC711E9VFN2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC711E9VFN2 requirements.
6.How does Aetrix verify that MC68HC711E9VFN2 is sourced from the original manufacturer or authorized distributors?
All MC68HC711E9VFN2 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 MC68HC711E9VFN2 meets industry standards.
7.What is the process for return or replacement of MC68HC711E9VFN2?
All MC68HC711E9VFN2 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC711E9VFN2, 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 MC68HC711E9VFN2 part is unused and in its original packaging.
Return procedure for MC68HC711E9VFN2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC68HC711E9VFN2 Tags
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