My Inquiry
My Account
NXP Semiconductors MC68HRC98JL3ECDW
- Part No.:
- MC68HRC98JL3ECDW
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC68HRC98JL3ECDW.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,865
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC68HRC908JL3 from NXP (formerly Freescale) is an 8-bit HCS08-core microcontroller with integrated RC oscillator, 4 KB FLASH, 192 B RAM, 8-channel 8-bit ADC, and 20-pin SOIC package. It operates at up to 8 MHz bus frequency, supports Wait/Stop low-power modes, and targets cost-sensitive embedded control in industrial sensors and appliance subsystems.
For engineers reviewing the MC68HRC908JL3 datasheet, MC68HRC908JL3 pinout, MC68HRC908JL3 application, or MC68HRC908JL3 equivalent, key selection criteria include its internal RC clock stability (±2% over temperature), on-chip COP watchdog, KBI keyboard interrupt support, and compatibility with legacy HC08 development tools and MON ROM debug interface.
Technical Context
The MC68HRC908JL3 implements the HCS08 CPU core with a 16-bit address bus, Harvard architecture memory map, and fixed-priority interrupt vector table. Its System Integration Module (SIM) provides clock generation via internal RC oscillator (no external crystal required), reset management, and low-power mode control with automatic wake-up from IRQ or KBI events.
Peripheral integration includes a 16-bit Timer Interface Module (TIM) with input capture, output compare, and PWM generation; an Analog-to-Digital Converter (ADC) with programmable sample time and conversion trigger sources; and three I/O ports (Port A, B, D) with configurable pull-ups and data direction registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS08 8-bit CISC core with 16-bit addressing and 256-byte page zero access |
| FLASH Memory | 4 KB on-chip FLASH with block erase, mass erase, and program capability; supports in-system programming via MON ROM |
| RAM Size | 192 bytes of on-chip RAM for stack, variables, and temporary data storage |
| ADC Resolution | 8-bit successive-approximation ADC with 8 input channels and software-selectable reference (VDD or internal bandgap) |
| Max Bus Frequency | 8 MHz - determines instruction execution speed and peripheral timing margins |
| Oscillator Type | Internal RC oscillator only (no crystal pins); factory-trimmed for ±2% accuracy at 25°C, ±5% over –40°C to +85°C |
| Supply Voltage | 2.7–5.5 V DC - enables direct operation from single-cell Li-ion or 3.3/5 V rails without LDO |
| Low-Power Modes | Wait Mode (CPU halted, peripherals active) and Stop Mode (all clocks stopped except LVI and IRQ wake sources) |
Pinout & Package
MC68HRC908JL3 is housed in a 20-pin Small Outline Integrated Circuit (SOIC) package with 0.3-inch body width and standard 1.27 mm pitch. Pin assignments are defined per Section 1.5 (Pin Assignments) and Section 1.6 (Pin Functions) of the Rev. 1.1 Technical Data document.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | Main positive supply (2.7–5.5 V); powers core, FLASH, RAM, and all I/O buffers |
| VSS | Ground | Digital ground reference for all internal circuitry and I/O pins |
| PTA0–PTA7 | Port A I/O | 8-bit bidirectional port with individual direction control (DDRA) and pull-up enable (PTAPUE); PTA6 doubles as RCCLK output |
| PTB0–PTB3 | Port B I/O | 4-bit bidirectional port with direction control (DDRB); PTB0–PTB2 support keyboard interrupt (KBI) inputs |
| PTD0–PTD3 | Port D I/O | 4-bit bidirectional port with direction control (DDRD); PTD0–PTD3 serve as ADC input channels AD0–AD3 |
| IRQ | External Interrupt | Edge-triggered interrupt input (active low); wakes MCU from Wait/Stop modes |
| RESET | Reset Input | Active-low asynchronous reset pin; initiates power-on reset sequence and clears CPU registers |
| OSC1/PTA6 | RC Oscillator Input / I/O | Not connected in RC-oscillator variant; PTA6 functions as RCCLK output instead |
| OSC2/PTA6/RCCLK | RC Oscillator Output / I/O | RCCLK output pin (drives internal bus clock); also serves as PTA6 general-purpose I/O |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RC Oscillator | Eliminates need for external crystal or resonator; reduces BOM count and board space in cost-sensitive designs |
| Monitor ROM (MON) | 256-byte on-chip ROM enabling in-circuit debugging, FLASH programming, and bootloader functionality via UART interface |
| Computer Operating Properly (COP) | Configurable watchdog timer with selectable timeout (0.5 ms to 1.0 s) to recover from software lockup without external components |
| Keyboard Interrupt Module (KBI) | Hardware scan logic for up to 12-key matrix with debounce filtering and interrupt-on-change capability |
| Low-Voltage Inhibit (LVI) | On-chip voltage monitor that forces reset if VDD drops below 2.5 V (typical), preventing erratic operation during brownout |
| Break Module | Hardware debug interface supporting single-step execution, register inspection, and memory read/write via dedicated break pin |
Applications
| Industrial Sensor Node | Home Appliance Control |
|---|---|
Use Scenario: Standalone temperature/humidity sensor node with analog sensor inputs and LED status indication. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, linearization, and local display logic; RC oscillator provides sufficient timing for 100-ms sampling intervals. Use Value: Eliminates external crystal and reduces PCB footprint by 30% versus crystal-based HC08 variants while maintaining ±5% timing accuracy across operating temperature range. |
Use Scenario: Microwave oven control panel with keypad scanning, relay drive, and safety interlock monitoring. IC Role / Device Role / Timing Role: Primary user-interface MCU handling KBI-driven key detection, buzzer timing, and COP-monitored cooking cycle sequencing. Use Value: On-chip COP ensures fail-safe shutdown if firmware hangs during high-voltage relay activation; KBI hardware offloads CPU from polling tasks. |
| Smart Meter Subsystem | Automotive Body Control |
Use Scenario: Battery-powered utility meter auxiliary module measuring auxiliary voltages and communicating via UART to main processor. IC Role / Device Role / Timing Role: Secondary measurement controller using ADC inputs AD0–AD3 to monitor battery voltage, supply rails, and sensor bias levels. Use Value: 2.7–5.5 V supply range allows direct connection to LiFePO₄ battery (3.2 V nominal); Stop Mode current < 1 µA extends battery life beyond 5 years. |
Use Scenario: Door lock actuator control module receiving LIN commands and driving solenoid loads. IC Role / Device Role / Timing Role: Dedicated LIN physical layer interface and solenoid driver sequencer; uses IRQ pin for LIN frame synchronization and TIM for precise pulse-width control. Use Value: Internal RC oscillator meets LIN baud rate tolerance (±1.5%) without requiring external timing components, reducing component count and qualification effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HC908JL3 | Crystal-based oscillator (requires external 32.768 kHz or 1–8 MHz crystal); no RCCLK output; identical FLASH/RAM/peripherals | Suitable where higher clock accuracy (< ±0.1%) or external clock synchronization is required | Select MC68HC908JL3 when system-level timing demands exceed ±5% RC oscillator tolerance |
| MC9RS08KA2 | Newer RS08 core; 2 KB FLASH, 128 B RAM, 10-bit ADC, 20-pin SOIC; requires external crystal or ceramic resonator | Offers enhanced ADC resolution and lower active current but lacks MON ROM and KBI hardware | Choose MC9RS08KA2 for new designs prioritizing power efficiency and ADC precision over legacy toolchain compatibility |
Compared with MC68HC908JL3, the MC68HRC908JL3 trades crystal dependency for reduced BOM cost and layout simplicity, while the MC9RS08KA2 offers modern core efficiency at the expense of debug infrastructure and keyboard scan hardware.
Availability
MC68HRC908JL3 is available at Aetrix Electronics and suitable for industrial sensor nodes, home appliance control panels, smart meter subsystems, and automotive body electronics requiring stable component supply and long-term obsolescence management.
Supply support for MC68HRC908JL3 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 applications.
The MC68HRC908JL3 belongs to the legacy HCS08 microcontroller family designed for cost-optimized, low-pin-count embedded control in appliances, sensors, and industrial equipment where crystal-free operation and toolchain maturity are critical.
FAQ
What oscillator options does the MC68HRC908JL3 support?
The MC68HRC908JL3 integrates a factory-trimmed internal RC oscillator only - it does not support external crystals or resonators. The RCCLK output on PTA6 provides the system bus clock, with typical accuracy of ±2% at 25°C and ±5% over the full –40°C to +85°C operating range. This eliminates crystal-related BOM cost and layout complexity.
Does the MC68HRC908JL3 include a hardware watchdog timer?
Yes, the MC68HRC908JL3 includes a Computer Operating Properly (COP) watchdog timer with user-configurable timeout periods ranging from 0.5 ms to 1.0 s. The COP resets the MCU if not serviced within the selected window, providing fail-safe recovery from software faults without external components.
Can the MC68HRC908JL3 perform in-system programming of its FLASH memory?
Yes, the MC68HRC908JL3 supports in-system programming via its built-in Monitor ROM (MON). Using a UART interface and standard serial commands, users can erase and reprogram the 4 KB FLASH memory without removing the device from the target board - enabling field updates and simplified manufacturing.
How many analog input channels does the MC68HRC908JL3 ADC support?
The MC68HRC908JL3 features an 8-bit successive-approximation ADC with 8 selectable input channels (AD0–AD7). Channels AD0–AD3 are mapped to Port D pins PTD0–PTD3; AD4–AD7 are available on Port A pins PTA0–PTA3 when configured as analog inputs.
What low-power modes are available on the MC68HRC908JL3?
The MC68HRC908JL3 supports two low-power modes: Wait Mode (CPU halted, peripherals remain active, wake via IRQ/KBI) and Stop Mode (all clocks stopped except LVI and IRQ wake logic, typical current < 1 µA). Both modes retain RAM contents and allow fast wake-up with deterministic latency.
Is the MC68HRC908JL3 pin-compatible with the MC68HC908JL3?
No - the MC68HRC908JL3 and MC68HC908JL3 share identical pinouts and package dimensions (20-pin SOIC), but differ functionally at the oscillator pins: OSC1 is NC on the RC variant, while OSC2 serves as RCCLK output instead of crystal amplifier output. PCBs must route RCCLK appropriately and omit crystal load capacitors.
MC68HRC98JL3ECDW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Series:
- HC08
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- -
- Peripherals:
- LED, LVD, POR, PWM
- Number of I/O:
- 15
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.3V
- Data Converters:
- A/D 12x8b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68HRC98JL3ECDW FAQ
1.How can I place an order for MC68HRC98JL3ECDW through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68HRC98JL3ECDW 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 MC68HRC98JL3ECDW reliable?
The price and inventory of MC68HRC98JL3ECDW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68HRC98JL3ECDW is usually 5 days.
3.What payment methods are accepted for MC68HRC98JL3ECDW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68HRC98JL3ECDW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68HRC98JL3ECDW?
MC68HRC98JL3ECDW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68HRC98JL3ECDW 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 MC68HRC98JL3ECDW?
For technical support, including MC68HRC98JL3ECDW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68HRC98JL3ECDW requirements.
6.How does Aetrix verify that MC68HRC98JL3ECDW is sourced from the original manufacturer or authorized distributors?
All MC68HRC98JL3ECDW 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 MC68HRC98JL3ECDW meets industry standards.
7.What is the process for return or replacement of MC68HRC98JL3ECDW?
All MC68HRC98JL3ECDW units undergo pre-shipment inspection (PSI). If there is an issue with MC68HRC98JL3ECDW, 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 MC68HRC98JL3ECDW part is unused and in its original packaging.
Return procedure for MC68HRC98JL3ECDW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC68HRC98JL3ECDW 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…
