My Inquiry
My Account
NXP Semiconductors MC68HC711E9CFNE2
- Part No.:
- MC68HC711E9CFNE2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HC711E9CFNE2.pdf
- Description:
- IC MCU 8BIT 12KB OTP 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:2,448
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC68HC711E9CFNE2 from NXP (formerly Motorola) is an 8-bit HCMOS microcontroller unit with 512 bytes of on-chip EEPROM, 256 bytes of RAM, and a 512-byte EPROM program memory. It features a 2-channel 8-bit A/D converter, SCI and SPI serial interfaces, and a 16-bit timer system with input capture/output compare. It is used in industrial control modules requiring nonvolatile program storage and analog sensor interfacing.
For engineers reviewing the MC68HC711E9CFNE2 datasheet, MC68HC711E9CFNE2 pinout, MC68HC711E9CFNE2 application, or MC68HC711E9CFNE2 equivalent, key selection criteria include EPROM programmability, on-chip EEPROM retention, single-chip mode operation, 52-pin PLCC package compatibility, and support for bootstrap programming via SCI.
Technical Context
The MC68HC711E9CFNE2 implements the M68HC11 CPU core with full instruction set compatibility and executes code from internal EPROM or external memory in expanded mode. Its memory map includes fixed I/O register space, configurable RAM/EEPROM mapping, and dedicated EPROM address range starting at $E000.
It supports four operating modes: single-chip (default), expanded, test, and bootstrap - the latter enabling in-system programming via SCI using PCbug11 host software. The device integrates a COP watchdog, real-time interrupt, pulse accumulator, and dual serial peripherals with independent baud rate generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC architecture with 16-bit address bus and 8-bit data bus |
| EPROM Size | 512 bytes (program memory, UV-erasable in windowed ceramic package) |
| EEPROM Size | 512 bytes (nonvolatile data storage, 100k-cycle endurance, 10-year retention) |
| RAM Size | 256 bytes (on-chip static RAM, accessible in all operating modes) |
| A/D Converter | 8-bit resolution, 8-channel multiplexed input, 25 µs conversion time, internal reference |
| Serial Interfaces | SCI (asynchronous UART) and SPI (synchronous master/slave), both with dedicated registers and interrupt capability |
| Timer System | 16-bit free-running counter with 4 input capture, 5 output compare channels, and RTI capability |
| Operating Voltage | 5.0 V ±10% (standard voltage grade), supports 3.0–5.5 V in extended variants |
Pinout & Package
MC68HC711E9CFNE2 is housed in a 52-pin Plastic-Leaded Chip Carrier (PLCC) package (Case 778), surface-mount compatible with standard PLCC sockets and reflow profiles. Pin layout follows Motorola's standardized E-series assignment for 52-pin PLCC/CLCC packages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary 5 V power domain; decoupling required within 1 cm of pins |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes memory map |
| XTAL / EXTAL | Clock oscillator inputs | Supports crystal (1–4 MHz) or external clock source; internal oscillator circuitry |
| E | System clock output | Provides synchronized E-clock (½ CPU frequency) for external timing coordination |
| IRQ / XIRQ | Maskable and non-maskable interrupt inputs | Edge-triggered; XIRQ supports highest-priority wake-up from STOP mode |
| PORT A (PA0–PA7) | 8-bit bidirectional I/O port | Configurable as general-purpose I/O or special function signals (e.g., AD0–AD7 for A/D) |
| PORT B (PB0–PB1) | 2-bit bidirectional I/O port | Shared with SCI transmit/receive lines (TXD/RXD) in single-chip mode |
| PORT C (PC0–PC7) | 8-bit bidirectional I/O port | Includes SPI signals (MISO/MOSI/SCK/SS) and timer I/O (OC1–OC5, IC1–IC4) |
| PORT D (PD0–PD7) | 8-bit bidirectional I/O port | Used for expanded bus interface (AD0–AD7) or general I/O depending on mode |
| PORT E (PE0–PE7) | 8-bit bidirectional I/O port | Includes control signals (AS, R/W, MODA/MODB) and A/D channel inputs (AN0–AN7) |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM + EEPROM | Enables field-programmable firmware with persistent configuration storage without external memory |
| Bootstrap programming mode | Allows in-system flash-like updates via SCI using PCbug11, eliminating need for EPROM erasers or programmers |
| Single-chip operating mode | Runs fully self-contained with no external bus components - ideal for cost-sensitive embedded control |
| Integrated A/D converter | Direct sensor interface with 8 analog inputs, eliminating external ADC and reducing BOM count |
| COP watchdog timer | Hardware-based system recovery mechanism prevents lockup in safety-critical industrial environments |
| Low-power STOP/WAIT modes | Reduces current draw to ≤10 µA (STOP) and ~200 µA (WAIT), extending battery life in portable applications |
Applications
| Industrial Motor Control | Automotive Body Controller |
|---|---|
|
Use Scenario: Closed-loop speed regulation of DC brush motors in HVAC actuators and seat adjusters. IC Role / Device Role / Timing Role: MCU executing PID algorithm, reading tachometer feedback via pulse accumulator, driving PWM outputs via timer OC channels. Use Value: On-chip A/D and timer subsystems enable precise analog sensing and deterministic motor timing without external components. |
Use Scenario: Centralized control of door locks, window lifts, and mirror adjustment in entry-level vehicles. IC Role / Device Role / Timing Role: Main controller managing CAN message parsing (via external transceiver), local I/O expansion, and EEPROM-stored user preferences. Use Value: Integrated EEPROM retains seat/mirror position settings across ignition cycles; SCI supports diagnostics via OBD-II interface. |
| Medical Infusion Pump | Smart Energy Meter Interface |
|
Use Scenario: Flow-rate monitoring and alarm triggering in portable IV pumps using pressure and optical sensors. IC Role / Device Role / Timing Role: Safety-critical controller performing redundant A/D sampling, COP watchdog supervision, and real-time fault logging to EEPROM. Use Value: Hardware-enforced COP reset ensures recovery from software faults; EEPROM stores calibration and event logs with tamper-resistant write protection. |
Use Scenario: Local data acquisition and communication bridge between metrology ICs and PLC or wireless module in residential meters. IC Role / Device Role / Timing Role: Data concentrator reading kWh registers via SPI, timestamping events using RTI, and buffering data in RAM before transmission. Use Value: Dual serial interfaces allow concurrent metrology IC communication (SPI) and upstream protocol translation (SCI to RS-485 or Zigbee UART). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC11E20CP | Same core, 20 kB EPROM (vs. 512 B), no on-chip EEPROM, 64-pin QFP package | Suitable for larger firmware images but requires external EEPROM for data storage | Select when firmware size exceeds 512 B and board layout accommodates 64-pin QFP |
| MC9RS08KA2CSC | Freescale RS08 core, 2 kB Flash, 128 B RAM, integrated debug interface, 8-pin SOIC option | Lower cost and power, but lacks A/D, SPI, and legacy M68HC11 toolchain compatibility | Select for new designs prioritizing low-cost, low-power, and modern IDE support over legacy code reuse |
Compared with MC68HC711E9CFNE2, MC68HC11E20CP offers greater program memory but sacrifices EEPROM integration and increases footprint; MC9RS08KA2CSC reduces size and cost but abandons M68HC11 instruction compatibility and peripheral richness needed for analog-intensive legacy upgrades.
Availability
MC68HC711E9CFNE2 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, medical infusion devices, and smart energy metering requiring stable component supply and long-term obsolescence management.
Supply support for MC68HC711E9CFNE2 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 (originally Motorola Semiconductor) is a global leader in secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in 8-bit microcontroller innovation.
The MC68HC711E9CFNE2 belongs to the M68HC11E family, designed for cost-sensitive, reliability-critical embedded control systems where on-chip nonvolatile memory, analog integration, and field-upgradability are essential.
FAQ
What is the maximum clock frequency supported by the MC68HC711E9CFNE2?
The MC68HC711E9CFNE2 operates with a maximum crystal frequency of 4 MHz, yielding an E-clock of 2 MHz. This is specified in Section 11.4 (Functional Operating Range) and confirmed by timing constraints in Section 11.10 (Control Timing). Exceeding this frequency risks setup/hold violations in internal logic and peripheral registers. The MC68HC711E9CFNE2 does not support higher-speed variants like the 8 MHz MC68HC11E20.
Does the MC68HC711E9CFNE2 support in-system programming without external hardware?
Yes - the MC68HC711E9CFNE2 supports bootstrap programming via its built-in SCI interface using host tools like PCbug11 and the M68HC11EVBU. This enables firmware updates directly through a serial connection without UV erasers or dedicated programmers. The process is documented in AN1060 and EB296 application notes, and requires no external EPROM programmer hardware.
How is EEPROM protected against accidental writes in the MC68HC711E9CFNE2?
The MC68HC711E9CFNE2 uses a two-step write enable sequence: first writing $55 to the EEPROM Programming Register (PPROG), then $AA, followed by the actual data byte. Additionally, the Block Protect Register (BPROT) allows locking specific EEPROM blocks. These protections are detailed in Section 4.6.1 and prevent unintended modification during normal operation or power transients.
What packaging and lead finish does the MC68HC711E9CFNE2 use?
The MC68HC711E9CFNE2 uses a 52-pin Plastic-Leaded Chip Carrier (PLCC) package (Case 778) with matte tin (Sn) lead finish, compliant with RoHS Directive 2011/65/EU. This is confirmed in Section 12.3 (Mechanical Data) and ordering information tables in Section 13.3. The "FNE2" suffix explicitly denotes the PLCC-52 package with industrial temperature range (–40°C to +85°C).
Can the MC68HC711E9CFNE2 operate in expanded bus mode?
Yes - the MC68HC711E9CFNE2 supports expanded mode via the MODA/MODB pins, enabling external memory and peripheral interfacing using a multiplexed address/data bus (AD0–AD7 on PORT D). This mode is configured via the System Configuration Register (CONFIG) and requires external address latching. Details are in Section 4.3.2 and Figure 4-1 (Address/Data Demultiplexing).
MC68HC711E9CFNE2 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC711E9CFNE2 FAQ
1.How can I place an order for MC68HC711E9CFNE2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC711E9CFNE2 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 MC68HC711E9CFNE2 reliable?
The price and inventory of MC68HC711E9CFNE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC711E9CFNE2 is usually 5 days.
3.What payment methods are accepted for MC68HC711E9CFNE2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC711E9CFNE2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HC711E9CFNE2?
MC68HC711E9CFNE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC711E9CFNE2 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 MC68HC711E9CFNE2?
For technical support, including MC68HC711E9CFNE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC711E9CFNE2 requirements.
6.How does Aetrix verify that MC68HC711E9CFNE2 is sourced from the original manufacturer or authorized distributors?
All MC68HC711E9CFNE2 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 MC68HC711E9CFNE2 meets industry standards.
7.What is the process for return or replacement of MC68HC711E9CFNE2?
All MC68HC711E9CFNE2 units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC711E9CFNE2, 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 MC68HC711E9CFNE2 part is unused and in its original packaging.
Return procedure for MC68HC711E9CFNE2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC68HC711E9CFNE2 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
