NXP Semiconductors MCHC11F1VFNE3

Overview

MCHC11F1VFNE3 from NXP Semiconductors (formerly Freescale) is an 8-bit microcontroller unit (MCU) with on-chip 512 B RAM, 2 KB EEPROM, and 12 KB ROM, featuring a 2 MHz internal bus speed, integrated SCI and SPI serial interfaces, and 8-channel 8-bit ADC. It operates in single-chip mode for embedded control in automotive body electronics and industrial sensor nodes.

For engineers reviewing the MCHC11F1VFNE3 datasheet, MCHC11F1VFNE3 pinout, MCHC11F1VFNE3 application, or MCHC11F1VFNE3 equivalent, key selection criteria include its 68-pin PLCC package, non-multiplexed 8-bit parallel I/O ports (Ports A–G), COP watchdog, real-time interrupt timer, and EEPROM programmability without external programming voltage.

Technical Context

The MCHC11F1VFNE3 implements the MC68HC11 CPU core with full instruction set compatibility to the Motorola 6800 architecture. It supports four operating modes - single-chip, expanded, bootstrap, and test - selected via external pins and CONFIG register settings. Memory mapping includes fixed 12 KB ROM (bootloader + monitor), 512 B RAM, and 2 KB EEPROM with byte/row/bulk erase capability.

Its timing system integrates a 16-bit timer with input capture, output compare, pulse accumulator, and real-time interrupt functions. Serial peripherals include a full-duplex SCI with wakeup support (idle-line and address-mark) and an SPI master/slave interface with configurable clock polarity and phase (CPOL/CPHA).

Key Specifications

Pinout & Package

Package: 68-pin Plastic Leaded Chip Carrier (PLCC), JEDEC MO-047AC compliant, 24.2 mm × 24.2 mm footprint, surface-mount compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with MCHC11F1VFNE3, the MC68HC11E9CP2 offers identical instruction compatibility but reduced EEPROM and different packaging, while the MC9S12XDP512 delivers architectural advancement at the cost of software migration effort and board redesign.

Availability

MCHC11F1VFNE3 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, legacy PLC I/O modules, and medical equipment subsystems requiring stable component supply and long-term lifecycle support.

Supply support for MCHC11F1VFNE3 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 company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MC68HC11 family was originally developed by Motorola for cost-sensitive, real-time embedded control applications where deterministic timing, low power, and on-chip nonvolatile memory were critical - especially in automotive and industrial environments.

FAQ

What is the maximum operating frequency of the MCHC11F1VFNE3?

The MCHC11F1VFNE3 has a maximum internal bus frequency of 2 MHz, derived from an external crystal (1–4 MHz) or oscillator connected to XTAL/EXTAL pins. This bus speed defines instruction execution timing and peripheral clocking - for example, a 2 MHz bus yields a 2 µs minimum instruction cycle for most opcodes. The MCHC11F1VFNE3 does not support internal PLL multiplication.

Does the MCHC11F1VFNE3 support in-circuit debugging?

Yes, the MCHC11F1VFNE3 includes a factory-programmed 12 KB ROM bootloader that supports serial monitor functionality via SCI0, enabling in-system programming, memory inspection, and basic breakpoint-style debugging without external emulators. While it lacks full BDM (Background Debug Mode) hardware, the MCHC11F1VFNE3's monitor supports command-driven register and memory access over standard UART connections.

Can the MCHC11F1VFNE3 operate from a single 5 V supply?

Yes, the MCHC11F1VFNE3 is specified for single 5.0 V ±10% operation across the full industrial temperature range (–40°C to +85°C). All I/O pins are 5 V tolerant, and internal regulators generate required core voltages. No external voltage translation or level-shifting is needed for standard 5 V peripheral interfacing - a key design simplification reflected in the MCHC11F1VFNE3's widespread use in legacy industrial controls.

How is EEPROM endurance and data retention specified for the MCHC11F1VFNE3?

The MCHC11F1VFNE3 guarantees 10,000 write/erase cycles per EEPROM byte and 10-year data retention at +85°C. Endurance is validated per Freescale's AEC-Q100 stress testing protocol, and retention accounts for worst-case thermal aging. These values apply to the full 2 KB EEPROM block and are measured under standard 5 V operation - critical for applications like MCHC11F1VFNE3-based automotive calibration storage where field updates occur infrequently but must be highly reliable.

What are the power consumption characteristics of the MCHC11F1VFNE3 in STOP mode?

In STOP mode, the MCHC11F1VFNE3 draws typically 10 µA at 5 V and 25°C, with RAM and register contents retained. Wake-up is supported via IRQ, XIRQ, or RTI - all triggering within 6 E-cycles. This ultra-low quiescent current enables battery-backed operation for months in sensor logging applications, and the MCHC11F1VFNE3's STOP recovery timing is fully characterized in Freescale's Electrical Characteristics appendix (Figure A-4).