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NXP Semiconductors MC68HC98LJ12CFUE
- Part No.:
- MC68HC98LJ12CFUE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-QFP
- Datasheet:
-
MC68HC98LJ12CFUE.pdf
- Description:
- IC MCU 8BIT 12KB FLASH 64QFP
- Quantity:
- Payment:
- Shipping:
Inventory:420
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Product details
Overview
MC68HC98LJ12CFUE from NXP (formerly Freescale) is an 8-bit HCS08-based microcontroller with 12 KB on-chip FLASH, 512 B RAM, integrated LCD driver (up to 18 segments), RTC, IRSCI, SPI, and TIM modules. It operates at up to 8 MHz bus frequency, supports 2.7–5.5 V supply, and targets low-power embedded instrumentation and consumer display applications.
For engineers reviewing the MC68HC98LJ12CFUE datasheet, MC68HC98LJ12CFUE pinout, MC68HC98LJ12CFUE application, or MC68HC98LJ12CFUE equivalent, key selection criteria include its integrated LCD frontplane/backplane drive capability, IR serial interface compliance with NEC/RC-5 protocols, real-time clock with calendar/alarm functions, and FLASH-based in-system programmability for field updates.
Technical Context
The MC68HC98LJ12CFUE implements the HCS08 CPU core with enhanced addressing modes and a 16-bit index register. Its Clock Generator Module (CGM) integrates a PLL for flexible clock synthesis from internal RC or external crystal sources, enabling precise timing control for LCD bias generation and IR carrier modulation.
The System Integration Module (SIM) coordinates reset sources-including POR, LVI, COP, and external RST-and manages low-power modes (Wait/Stop) with selective peripheral wake-up. The IRSCI module combines infrared encoder/decoder logic with standard SCI framing, supporting both asynchronous serial communication and protocol-specific IR data transmission.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS08 8-bit CPU with 16-bit index register and enhanced instruction set for compact code density |
| Memory | 12 KB on-chip FLASH (in-system programmable), 512 B RAM, 128 B EEPROM-equivalent MON ROM |
| Bus Frequency | Up to 8 MHz - determines maximum instruction throughput and peripheral timing resolution |
| LCD Driver | Supports up to 18 frontplane (FP0–FP18) and 3 backplane (BP0–BP2) outputs for segmented displays |
| IRSCI Interface | Integrated infrared encoder/decoder with programmable carrier frequency (30–56 kHz) and NEC/RC-5 protocol support |
| RTC Functionality | Full calendar (year/month/day/hour/minute/second), alarm interrupt, and chronograph mode with battery-backed operation |
| Supply Voltage | 2.7–5.5 V - enables direct compatibility with single-cell Li-ion, 3.3 V, and 5 V system rails |
Pinout & Package
MC68HC98LJ12CFUE is housed in a 64-pin QFP (Quad Flat Package) with 0.5 mm pitch, compliant with JEDEC MO-152. Pin assignments are defined per Section 1.5 (Pin Assignments) and Section 1.6 (Pin Functions) of the MC68HC908LJ12 Technical Data Rev. 2.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Power supply / Ground | Dual power domains: digital (VDD/VSS) and analog (VDDA/VSSA) for noise isolation in ADC/LCD/RTC paths |
| OSC1 / OSC2 | Crystal oscillator input/output | Supports 32.768 kHz watch crystal for RTC or 1–8 MHz crystal for main system clock |
| RST | Active-low reset input | Asynchronous external reset with internal pull-up; initiates full system initialization sequence |
| PTA0–PTA7 | Port A general-purpose I/O | Configurable as GPIO or dedicated functions including IRQ, CGMXFC, and VREFH/VREFL |
| PTB0/TxD, PTB1/RxD | IRSCI transmit/receive pins | Hardware-managed IR carrier modulation/demodulation; no software bit-banging required |
| FP0–FP18, BP0–BP2 | LCD segment/backplane drivers | Direct-drive capability eliminates external LCD bias IC; supports static and multiplexed configurations |
Key Features
| Feature | Design Value |
|---|---|
| FLASH Memory with Security | 12 KB reprogrammable FLASH with block protection registers prevents unauthorized firmware readout or overwrite |
| Real-Time Clock with Calendar | Hardware RTC maintains accurate time/date across power cycles using external 32.768 kHz crystal and optional backup supply |
| Infrared Serial Interface (IRSCI) | Integrated encoder/decoder supports NEC and RC-5 protocols with configurable carrier frequency and automatic frame handling |
| LCD Driver with Bias Generation | On-chip LCD driver generates internal bias voltages and drives up to 54 segments (18×3) without external components |
| Low-Voltage Inhibit (LVI) | Programmable voltage monitor triggers reset before supply drops below safe operating threshold, preventing erratic execution |
Applications
| Consumer Remote Control Unit | Industrial Panel Meter Display |
|---|---|
Use Scenario: Battery-powered universal remote controlling TVs, AC units, and audio systems via IR. IC Role / Device Role / Timing Role: Primary MCU executing NEC/RC-5 encoding, managing button matrix scan, and driving IR LED through PTB0 with precise carrier timing. Use Value: Eliminates discrete IR encoder IC and external crystal for RTC; reduces BOM count by integrating LCD driver for status display. |
Use Scenario: Compact panel meter displaying measured voltage/current/temperature with date-stamped logging. IC Role / Device Role / Timing Role: Central controller acquiring sensor data via ADC, formatting values for segmented LCD, and timestamping readings using hardware RTC calendar. Use Value: Single-chip solution replaces separate RTC, LCD driver, and microcontroller-reducing PCB area and interconnect complexity. |
| Smart Thermostat Interface | Portable Medical Device Monitor |
Use Scenario: Wall-mounted thermostat with local temperature sensing, user keypad, and LCD display. IC Role / Device Role / Timing Role: Manages KBI keyboard interrupts, drives 4-digit LCD with BP0–BP2/FP0–FP18, and logs schedule events using RTC alarm interrupts. Use Value: Integrated KBI and RTC enable responsive UI with scheduled heating/cooling activation-no external timing or interrupt expansion needed. |
Use Scenario: Handheld pulse oximeter or blood glucose meter requiring low-power operation and clear segment display. IC Role / Device Role / Timing Role: Controls analog front-end via ADC, drives high-contrast LCD under varying ambient light, and maintains runtime clock during sleep modes. Use Value: LVI monitoring and Stop-mode current < 1 µA extend battery life; LCD driver supports multiplexed segments for improved readability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9RS08KA8CFUE | RS08 core, 8 KB FLASH, no integrated RTC or IRSCI; lower code density and peripheral integration | Lacks hardware RTC calendar and IR encoder-requires external RTC IC and software IR modulation | Choose when cost sensitivity outweighs need for integrated timing and IR functionality |
| S9KEAZ128AMLH | Kinetis E-series ARM Cortex-M0+, 128 KB FLASH, 16 KB RAM, no native IRSCI or LCD driver | Higher performance but requires external LCD bias IC and IR transceiver; no built-in NEC/RC-5 encoder | Prefer for applications needing >8 MHz throughput or RTOS support, accepting added component count |
Compared with MC9RS08KA8CFUE and S9KEAZ128AMLH, the MC68HC98LJ12CFUE delivers unique value in ultra-low-BOM designs where integrated LCD drive, hardware RTC calendar, and protocol-aware IRSCI reduce total system cost and layout complexity-without sacrificing 8-bit efficiency or field-programmable FLASH.
Availability
MC68HC98LJ12CFUE is available at Aetrix Electronics and suitable for consumer remote controls, industrial panel meters, smart thermostats, and portable medical monitors requiring stable component supply and long-term production continuity.
Supply support for MC68HC98LJ12CFUE 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 focused on secure connectivity solutions for automotive, industrial, and IoT markets, with roots in Freescale's legacy microcontroller portfolio.
The MC68HC98LJ12CFUE belongs to the HCS08 family, designed specifically for cost-sensitive, low-power embedded applications requiring integrated human-interface peripherals-especially LCD display, IR remote control, and real-time event logging.
FAQ
What is the maximum operating frequency of the MC68HC98LJ12CFUE?
The MC68HC98LJ12CFUE supports a maximum bus frequency of 8 MHz, derived from its internal PLL or external crystal source. This frequency governs instruction execution speed, timer resolution, and peripheral clocking-including LCD frame rate and IR carrier generation. Actual achievable frequency depends on supply voltage and temperature, with full 8 MHz operation specified at 4.5–5.5 V.
Does the MC68HC98LJ12CFUE include a hardware real-time clock with calendar support?
Yes, the MC68HC98LJ12CFUE integrates a full-featured Real Time Clock (RTC) module with year/month/day/hour/minute/second registers, alarm interrupt capability, and chronograph mode. It supports external 32.768 kHz crystal connection on OSC1/OSC2 and retains timekeeping during Stop mode when powered by backup supply.
Can the MC68HC98LJ12CFUE drive a multiplexed LCD without external components?
Yes, the MC68HC98LJ12CFUE's integrated LCD driver supports static and multiplexed configurations (up to 3 backplanes × 18 frontplanes) and generates internal bias voltages. No external resistors, capacitors, or dedicated LCD bias ICs are required-enabling direct connection to common segmented LCD glass.
What IR protocols does the IRSCI module in the MC68HC98LJ12CFUE support?
The IRSCI module natively supports NEC and RC-5 infrared protocols through hardware-assisted encoding and decoding. Carrier frequency is programmable between 30–56 kHz, and frame formatting-including address/data bits, stop bits, and repeat codes-is handled automatically without CPU intervention.
Is the MC68HC98LJ12CFUE pin-compatible with other members of the HCS08 LJ series?
No-MC68HC98LJ12CFUE uses a 64-pin QFP package with specific pin assignments defined in the MC68HC908LJ12 datasheet. While functionally aligned with the LJ family, it is not pin-compatible with smaller variants (e.g., 44-pin LJ8 or 52-pin LJ16); PCB layout must match the 64-pin footprint and signal mapping.
MC68HC98LJ12CFUE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-QFP
- Series:
- HC08
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- IRSCI, SPI
- Peripherals:
- LCD, LVD, POR, PWM
- Number of I/O:
- 32
- Program Memory Size:
- 12KB (12K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 6x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HC98LJ12CFUE FAQ
1.How can I place an order for MC68HC98LJ12CFUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HC98LJ12CFUE 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 MC68HC98LJ12CFUE reliable?
The price and inventory of MC68HC98LJ12CFUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HC98LJ12CFUE is usually 5 days.
3.What payment methods are accepted for MC68HC98LJ12CFUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HC98LJ12CFUE transactions.
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4.How is shipping managed for MC68HC98LJ12CFUE?
MC68HC98LJ12CFUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HC98LJ12CFUE 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 MC68HC98LJ12CFUE?
For technical support, including MC68HC98LJ12CFUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HC98LJ12CFUE requirements.
6.How does Aetrix verify that MC68HC98LJ12CFUE is sourced from the original manufacturer or authorized distributors?
All MC68HC98LJ12CFUE 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 MC68HC98LJ12CFUE meets industry standards.
7.What is the process for return or replacement of MC68HC98LJ12CFUE?
All MC68HC98LJ12CFUE units undergo pre-shipment inspection (PSI). If there is an issue with MC68HC98LJ12CFUE, 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 MC68HC98LJ12CFUE part is unused and in its original packaging.
Return procedure for MC68HC98LJ12CFUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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