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NXP Semiconductors MC68HCP11E0FNE
- Part No.:
- MC68HCP11E0FNE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LCC (J-Lead)
- Datasheet:
-
MC68HCP11E0FNE.pdf
- Description:
- IC MCU 8BIT ROMLESS 52PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,017
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Product details
Overview
MC68HCP11E0FNE from Freescale Semiconductor is an 8-bit microcontroller in the M68HC11E family, featuring 512 bytes of on-chip RAM, 2048 bytes of EPROM, and integrated peripherals including a 8-channel 8-bit ADC, dual serial interfaces (SCI and SPI), and a 16-bit timer system with input capture/output compare. It operates at up to 2 MHz bus frequency and supports single-chip mode for embedded control in industrial sensors and motor controllers.
For engineers reviewing the MC68HCP11E0FNE datasheet, MC68HCP11E0FNE pinout, MC68HCP11E0FNE application, or MC68HCP11E0FNE equivalent, key selection criteria include EPROM-based firmware persistence, on-chip A/D conversion capability, SCI/SPI interface availability, and compatibility with legacy HC11 development tools and bootstrap programming methods.
Technical Context
The MC68HCP11E0FNE implements the M68HC11 CPU core with full instruction set compatibility, supporting direct, indexed, extended, and inherent addressing modes. Its memory map includes fixed ROM/EPROM space, configurable RAM/I/O mapping, and dedicated registers for peripheral control.
It integrates a 16-bit timer subsystem with four input capture channels and three output compare channels, plus real-time interrupt (RTI) capability. The analog subsystem features an 8-channel, 8-bit successive-approximation ADC with programmable conversion sequence and sample-and-hold control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC11 8-bit CISC architecture with 64+ instructions and 16-bit address bus |
| Max Bus Frequency | 2 MHz - determines maximum instruction throughput and peripheral timing margins |
| On-Chip Memory | 2 KB EPROM + 512 B RAM - enables standalone operation without external program memory |
| ADC Resolution | 8-bit - sufficient for basic sensor interfacing and control loop feedback |
| ADC Channels | 8 multiplexed inputs - supports multi-sensor monitoring in compact systems |
| Serial Interfaces | SCI (asynchronous UART) + SPI (synchronous master/slave) - enables communication with modems, displays, and peripheral ICs |
| Timer System | 16-bit free-running counter with 4 input capture / 3 output compare channels - supports precise pulse measurement and PWM generation |
Pinout & Package
MC68HCP11E0FNE is housed in a 52-pin PLCC (Plastic Leaded Chip Carrier) package with J-lead configuration, designed for surface-mount assembly and thermal reliability in industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Single 5 V ±10% supply required; decoupling critical for noise-sensitive analog/digital operation |
| XTAL, EXTAL | Crystal oscillator input/output | Supports external crystal (1–4 MHz) or TTL clock source for system timing reference |
| E | External clock output | Provides synchronized E-clock (½ bus frequency) for external logic timing coordination |
| RESET | Active-low reset input | Asynchronous hardware reset; initiates memory initialization and vector fetch from $FFFE–$FFFF |
| IRQ, XIRQ | Maskable and non-maskable interrupt inputs | Enable prioritized event handling; XIRQ used for critical fault conditions requiring immediate response |
| PORT A–E | Programmable I/O ports | Port A (8-bit bidirectional), Port B (8-bit output-only), Port C (8-bit bidirectional), Port D (6-bit bidirectional), Port E (8-bit input-only) - support digital control, sensing, and handshake protocols |
| SCI TXD/RXD | Serial transmit/receive data | Full-duplex asynchronous communication at configurable baud rates using internal baud rate generator |
| SPI MOSI/MISO/SCK/SS | Serial peripheral interface signals | Enables synchronous communication with EEPROMs, DACs, or other SPI slaves at up to 1 MHz clock rate |
Key Features
| Feature | Design Value |
|---|---|
| On-chip EPROM | 2048-byte user-programmable nonvolatile memory eliminates need for external boot ROM |
| Bootstrap Mode | Allows in-system programming via SCI using standard terminal software and no external programmer |
| Integrated ADC | 8-channel 8-bit converter with software-selectable channel sequencing and auto-triggering from timer events |
| Security Option | Configurable EPROM protection bit prevents unauthorized readout of firmware contents |
| Low-Power Modes | Wait and Stop modes reduce current consumption to <100 µA and <10 µA respectively for battery-powered applications |
Applications
| Industrial Motor Control | Automotive Body Controller |
|---|---|
Use Scenario: Closed-loop speed regulation of DC brush motors in conveyor systems using tachometer feedback. IC Role / Device Role / Timing Role: Central controller executing PID algorithm, reading analog tach signal via ADC, generating PWM-equivalent timing via output compare, and communicating status via SCI. Use Value: Eliminates external EPROM and reduces BOM count by integrating program storage, analog front-end, and dual serial interfaces in one 52-pin PLCC device. | Use Scenario: Centralized lighting and window lift control module managing multiple switches and actuators in entry-level vehicles. IC Role / Device Role / Timing Role: Real-time I/O manager polling switch inputs, driving relay/LED outputs, and reporting faults over SCI to main ECU. Use Value: Leverages on-chip RAM and EPROM for firmware updates via bootstrap mode, avoiding costly reprogramming hardware during service. |
| Legacy Industrial Sensor Node | Heating System Thermostat |
Use Scenario: Temperature and pressure monitoring node in HVAC ductwork with local display and alarm output. IC Role / Device Role / Timing Role: Analog sensor signal conditioner (ADC), digital display driver (via Port A/B), and serial telemetry transmitter (SCI) to building management system. Use Value: Single-chip solution replaces discrete microcontroller + ADC + UART, reducing PCB area and qualification effort for long-lifecycle industrial deployments. | Use Scenario: Residential thermostat with ambient temperature sensing, user keypad interface, and relay-driven furnace control. IC Role / Device Role / Timing Role: Front-end processor acquiring thermistor voltage, scanning matrix keypad, driving 7-segment display, and actuating heating relay based on setpoint comparison. Use Value: Integrated 8-bit ADC and programmable I/O ports enable direct sensor and actuator connection without external signal conditioning or level-shifting components. |
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 and peripheral set but with 512-byte EEPROM instead of EPROM; requires different programming method | Better suited for field-updatable firmware where rewrite endurance matters more than code density | Select MC68HC11E9CP only if EEPROM reprogrammability is required; MC68HCP11E0FNE offers higher EPROM retention and simpler factory programming |
| MC68HC11A8CP | Includes additional 8 KB mask-ROM and lacks EPROM; no on-chip nonvolatile program memory beyond ROM | Designed for high-volume, fixed-function applications where firmware never changes post-manufacture | Choose MC68HC11A8CP for cost-sensitive, unchangeable firmware deployments; MC68HCP11E0FNE retains field-programmable flexibility |
Compared with MC68HC11E9CP and MC68HC11A8CP, the MC68HCP11E0FNE uniquely balances one-time programmable firmware persistence, integrated analog acquisition, and bootstrap-based field updates-making it optimal for mid-volume industrial control where code stability and moderate update capability coexist.
Availability
MC68HCP11E0FNE is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, legacy sensor nodes, and HVAC thermostat designs requiring stable component supply across extended product lifecycles.
Supply support for MC68HCP11E0FNE 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 automotive, industrial, and networking solutions.
The MC68HCP11E0FNE belongs to the M68HC11E family, engineered for cost-sensitive, low-power embedded control applications requiring integrated memory, analog interfaces, and robust serial communications in harsh environments.
FAQ
What is the maximum operating frequency of the MC68HCP11E0FNE?
The MC68HCP11E0FNE supports a maximum bus frequency of 2 MHz, derived from an external crystal or clock source applied to the XTAL/EXTAL pins. This corresponds to a 4 MHz oscillator input when using the internal divide-by-two circuitry. The CPU executes instructions at this bus rate, with typical instruction cycles ranging from 2 to 6 bus clocks depending on addressing mode and opcode.
Does the MC68HCP11E0FNE support in-system programming?
Yes, the MC68HCP11E0FNE supports in-system programming via Bootstrap Mode using its built-in SCI interface. With a simple RS-232 connection and terminal software, users can download and program the on-chip EPROM without external hardware programmers. This capability is documented in Freescale Application Note AN1060 and requires proper RESET and MODA/MODB pin configuration during entry.
What type of analog-to-digital converter is integrated into the MC68HCP11E0FNE?
The MC68HCP11E0FNE integrates an 8-bit successive-approximation analog-to-digital converter with eight multiplexed input channels. It supports both single-channel and multi-channel conversion sequences, with trigger sources including software commands and timer overflow events. Conversion time is typically 25 µs per sample under standard bus timing conditions.
How does the MC68HCP11E0FNE handle power management in battery-operated devices?
The MC68HCP11E0FNE provides two low-power modes: Wait Mode (current draw <100 µA) and Stop Mode (current draw <10 µA). In Wait Mode, the CPU halts while peripherals remain active; in Stop Mode, nearly all internal clocks stop except for RTI wake-up capability. Both modes are entered via SWI or STOP instructions and exited by interrupts or RESET, making MC68HCP11E0FNE suitable for intermittent-sensing applications.
Is the MC68HCP11E0FNE pin-compatible with other members of the M68HC11E family?
Yes, the MC68HCP11E0FNE shares identical pinout and electrical characteristics with other 52-pin PLCC variants in the M68HC11E family, including MC68HC11E9CP and MC68HC11A8CP. This allows direct substitution in existing PCB layouts when functional requirements align-though firmware and memory configuration must be verified for each variant's specific ROM/EPROM/EEPROM allocation.
MC68HCP11E0FNE 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:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 8x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HCP11E0FNE FAQ
1.How can I place an order for MC68HCP11E0FNE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HCP11E0FNE 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 MC68HCP11E0FNE reliable?
The price and inventory of MC68HCP11E0FNE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HCP11E0FNE is usually 5 days.
3.What payment methods are accepted for MC68HCP11E0FNE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HCP11E0FNE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HCP11E0FNE?
MC68HCP11E0FNE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HCP11E0FNE 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 MC68HCP11E0FNE?
For technical support, including MC68HCP11E0FNE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HCP11E0FNE requirements.
6.How does Aetrix verify that MC68HCP11E0FNE is sourced from the original manufacturer or authorized distributors?
All MC68HCP11E0FNE 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 MC68HCP11E0FNE meets industry standards.
7.What is the process for return or replacement of MC68HCP11E0FNE?
All MC68HCP11E0FNE units undergo pre-shipment inspection (PSI). If there is an issue with MC68HCP11E0FNE, 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 MC68HCP11E0FNE part is unused and in its original packaging.
Return procedure for MC68HCP11E0FNE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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