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NXP Semiconductors MC68HC711E9CFN3
- Part No.:
- MC68HC711E9CFN3
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HC711E9CFN3.pdf
- Description:
- IC MCU 8BIT 12KB OTP 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,758
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Product details
Overview
MC68HC711E9CFN3 from Freescale Semiconductor is an 8-bit microcontroller in the M68HC11E family, featuring 512 bytes of on-chip RAM, 12 KB of EPROM, and integrated peripherals including a 8-channel 8-bit ADC, SCI, SPI, and a 16-bit timer system. It operates at up to 3 MHz in single-chip mode and supports bootstrap programming via serial interface for embedded control applications in industrial automation and automotive subsystems.
For engineers reviewing the MC68HC711E9CFN3 datasheet, MC68HC711E9CFN3 pinout, MC68HC711E9CFN3 application, or MC68HC711E9CFN3 equivalent, key selection criteria include EPROM programmability, on-chip ADC resolution and channel count, SCI/SPI interface availability, single-chip mode operation, and compatibility with legacy HC11 development tools and debuggers.
Technical Context
The MC68HC711E9CFN3 implements the M68HC11 CPU core with full instruction set compatibility, supporting direct, indexed, extended, and inherent addressing modes. Its memory map includes 12 KB of user-programmable EPROM (with on-chip programming capability), 512 bytes of RAM, and configurable I/O mapping via the RAM and I/O Mapping Register (RIOMR).
Peripherals are tightly integrated: the 8-channel 8-bit ADC supports single- and multi-channel conversion with software- or timer-triggered start; the SCI provides full-duplex asynchronous communication with idle-line and address-mark wakeup; the SPI supports master/slave operation with programmable clock polarity and phase; and the 16-bit timer includes input capture, output compare, and real-time interrupt functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC architecture with 64+ instructions and 16-bit address bus |
| EPROM Size | 12 KB on-chip EPROM, field-programmable via VPP (12 V) and bootstrap mode |
| RAM Size | 512 bytes on-chip RAM, mapped at $0000–$01FF in single-chip mode |
| ADC Resolution | 8-bit successive-approximation ADC with 8 analog input channels (AN0–AN7) |
| Max Clock Frequency | 3 MHz E-clock (6 MHz crystal input with internal divide-by-2) |
| Operating Voltage | 5.0 V ±10% (4.5 V to 5.5 V), specified per DC Electrical Characteristics table |
| I/O Ports | Port A (8-bit bidirectional), Port B (8-bit bidirectional), Port C (8-bit with handshake), Port D (6-bit with SCI/SPI), Port E (8-bit with ADC inputs) |
Pinout & Package
MC68HC711E9CFN3 is housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package with 0.050" lead pitch, designed for surface-mount assembly and socket-based prototyping. The package supports thermal dissipation up to 1.0 W under typical operating conditions and complies with JEDEC MS-026 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 5 V power domain; VSS serves as analog/digital reference common |
| XTAL / EXTAL | Crystal oscillator input/output | Supports 1–6 MHz crystal or external clock source; internal oscillator circuitry enabled |
| E | System clock output | Provides buffered E-clock (½ crystal frequency) for synchronous peripheral timing |
| RESET | Active-low reset input | Asynchronous hardware reset; initiates vector fetch from $FFFE–$FFFF |
| XIRQ/VPPE | Non-maskable interrupt / EPROM programming voltage | Dual-function pin: NMI trigger during normal operation; 12 V VPP source during EPROM programming |
| PORT A[7:0] | General-purpose bidirectional I/O | Configurable via DDRA register; default as inputs after reset; supports pull-up option |
| PORT E[7:0] | Analog input / digital I/O multiplex | Pins PE0–PE7 serve as ADC inputs AN0–AN7; also usable as general-purpose I/O when ADC disabled |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM programming | Enables field updates without external programmer-uses XIRQ/VPPE pin for 12 V VPP and SCI bootstrap loader |
| Integrated 8-channel ADC | Reduces BOM count by eliminating external ADC IC; supports software- or timer-triggered conversions with configurable sample time |
| SCI with wakeup capability | Allows low-power sleep mode with selective wake-on serial activity (idle-line or address-mark detection) |
| Single-chip mode operation | Eliminates need for external memory or glue logic-entire application runs from on-chip EPROM and RAM |
| Real-time interrupt (RTI) | Provides precise periodic timing for control loops or status polling without consuming CPU cycles in polling loops |
Applications
| Industrial Motor Control | Automotive Body Controller |
|---|---|
Use Scenario: Closed-loop speed regulation of brushed DC motors using PWM output and tachometer feedback. IC Role / Device Role / Timing Role: Central controller executing PID algorithm, reading analog tach signal via ADC, generating PWM via timer output compare, and communicating fault status via SCI. Use Value: On-chip 12 KB EPROM stores motor profile tables and calibration data; 8-bit ADC resolves tach voltage with ±1 LSB accuracy at 10 kHz sampling. | Use Scenario: Centralized control of door locks, window lifts, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: System manager interfacing with LIN or discrete switches, driving relays/LEDs via Port A/B, and monitoring battery voltage via ADC channel AN0. Use Value: Single-chip mode eliminates external memory, reducing PCB area and cost; SCI enables diagnostics and firmware updates over service port. |
| Legacy Equipment Retrofit | Heating System Thermostat |
Use Scenario: Replacing obsolete 8048/8051-based controllers in factory floor instrumentation. IC Role / Device Role / Timing Role: Drop-in replacement executing same instruction timing; uses existing PCB footprint and 5 V supply; retains same I/O pin assignments. Use Value: Pin-compatible with MC68HC11E9 variants; bootstrap programming allows in-system firmware update without removing IC from board. | Use Scenario: Residential HVAC thermostat with temperature sensing, display drive, and relay control. IC Role / Device Role / Timing Role: Reads thermistor via ADC channel AN1, drives 7-segment LED display via Port C handshake, and controls heating relay via Port A bit. Use Value: Integrated 512-byte RAM holds setpoint and schedule data; EPROM stores calibration coefficients and UI logic-no external EEPROM required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E9CP | Same core, 52-pin DIP package; lacks PLCC thermal performance and surface-mount compatibility | Better suited for through-hole prototyping or legacy repair; not recommended for new SMT designs | Select MC68HC11E9CP only when DIP socketing or manual rework is required |
| MC68HC11A8CP | 8 KB EPROM, no on-chip ADC; requires external ADC for analog sensing | Lower-cost option where analog inputs are unnecessary or handled externally | Choose MC68HC11A8CP only if application needs <8 KB code space and no integrated ADC |
Compared with MC68HC11E9CP and MC68HC11A8CP, the MC68HC711E9CFN3 offers superior integration (12 KB EPROM + 8-channel ADC in PLCC), enabling smaller BOMs and higher reliability in space-constrained industrial modules-without requiring layout changes or external support ICs.
Availability
MC68HC711E9CFN3 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, legacy equipment retrofit, and HVAC thermostat designs requiring stable component supply, long-term obsolescence management, and verified second-source alternatives.
Supply support for MC68HC711E9CFN3 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 and analog/mixed-signal ICs, known for robust automotive and industrial-grade microcontrollers.
The M68HC11E family-including MC68HC711E9CFN3-was engineered for cost-sensitive, real-time control applications demanding high reliability, on-chip nonvolatile memory, and minimal external components in harsh environments.
FAQ
What is the maximum operating frequency of the MC68HC711E9CFN3?
The MC68HC711E9CFN3 supports a maximum E-clock frequency of 3 MHz, derived from a 6 MHz crystal input via internal divide-by-2 circuitry. This timing governs all CPU execution, peripheral operation, and ADC conversion rates. Exceeding this limit risks undefined behavior or failure to meet AC timing specifications per Rev. 5.1 datasheet Section 10.10.
Does the MC68HC711E9CFN3 support in-system programming?
Yes, the MC68HC711E9CFN3 supports in-system EPROM programming via its bootstrap mode using the SCI interface and the XIRQ/VPPE pin as the 12 V VPP source. Programming requires a valid bootstrap loader (e.g., PCbug11) and adheres to timing and voltage requirements detailed in Section 2.4 of the Rev. 5.1 datasheet.
How many analog input channels does the MC68HC711E9CFN3 ADC provide?
The MC68HC711E9CFN3 integrates an 8-bit successive-approximation ADC with eight dedicated analog input channels (AN0–AN7), mapped to Port E pins PE0–PE7. All channels share a common reference (VRL/V RH) and support single- or multi-channel conversion sequences triggered by software or timer events.
What package type is used for the MC68HC711E9CFN3?
The MC68HC711E9CFN3 uses a 52-pin Plastic Leaded Chip Carrier (PLCC) package with 0.050" lead pitch (JEDEC MS-026 compliant). This surface-mount package enables compact board layouts and reliable thermal performance in industrial control modules.
Is the MC68HC711E9CFN3 pin-compatible with other M68HC11E-series devices?
Yes, the MC68HC711E9CFN3 shares identical pinout and electrical characteristics with other 52-pin PLCC variants in the M68HC11E family (e.g., MC68HC11E9CFN, MC68HC11E20CFN), enabling direct substitution where EPROM size and ADC requirements align-subject to verification of CONFIG register settings and memory map configuration.
MC68HC711E9CFN3 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:
- 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:
MC68HC711E9CFN3 FAQ
1.How can I place an order for MC68HC711E9CFN3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC711E9CFN3 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 MC68HC711E9CFN3 reliable?
The price and inventory of MC68HC711E9CFN3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC711E9CFN3 is usually 5 days.
3.What payment methods are accepted for MC68HC711E9CFN3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC711E9CFN3 transactions.
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4.How is shipping managed for MC68HC711E9CFN3?
MC68HC711E9CFN3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC711E9CFN3 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 MC68HC711E9CFN3?
For technical support, including MC68HC711E9CFN3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC711E9CFN3 requirements.
6.How does Aetrix verify that MC68HC711E9CFN3 is sourced from the original manufacturer or authorized distributors?
All MC68HC711E9CFN3 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 MC68HC711E9CFN3 meets industry standards.
7.What is the process for return or replacement of MC68HC711E9CFN3?
All MC68HC711E9CFN3 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC711E9CFN3, 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 MC68HC711E9CFN3 part is unused and in its original packaging.
Return procedure for MC68HC711E9CFN3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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