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NXP Semiconductors MCL908QY2CDTE
- Part No.:
- MCL908QY2CDTE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCL908QY2CDTE.pdf
- Description:
- IC MCU 8BIT 1.5KB FLASH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,451
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Product details
Overview
MCL908QY2CDTE from Freescale Semiconductor is an 8-bit HCS08-core microcontroller featuring 2 KB Flash, 128 B RAM, and integrated ADC, COP watchdog, LVI, AWU, and keyboard interrupt module - designed for low-cost, low-power embedded control in appliance panels, industrial sensors, and battery-powered instrumentation.
For engineers reviewing the MCL908QY2CDTE datasheet, MCL908QY2CDTE pinout, MCL908QY2CDTE application, or MCL908QY2CDTE equivalent, this page delivers verified technical context, package mapping, functional pin definitions, real-world use cases, and validated alternative options aligned with Freescale's MC68HLC908QY/QT family documentation (Rev. 3, July 2005).
Technical Context
The MCL908QY2CDTE implements the M68HC08 CPU core with 16-bit address space, supporting WAIT/STOP low-power modes and a configurable internal oscillator trimmed via OSCTRIM register. It integrates a 4-channel 8-bit ADC with programmable conversion time and continuous mode.
Its System Integration Module (SIM) provides unified reset handling (POR, COP, LVI, illegal opcode), bus clock generation (BUSCLKX2/BUSCLKX4), and interrupt prioritization across IRQ, KBI, and ADC modules - all operating within a 2.7–5.5 V supply range and −40°C to +85°C temperature grade.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M68HC08 8-bit CISC core with 16-bit addressing and 20 MHz max bus frequency |
| Flash Memory | 2 KB on-chip Flash with block protection, mass/page erase, and in-system programming |
| RAM | 128 bytes of on-chip RAM for data storage and stack operations |
| ADC | 8-bit successive-approximation ADC with 4 input channels and software-selectable conversion time |
| Oscillator | Internal RC oscillator (1–8 MHz) with trimmable frequency; supports external crystal or RC configuration |
| Supply Voltage | 2.7 V to 5.5 V - enables direct operation from single Li-ion, 3.3 V, or 5 V rails |
| Temperature Range | −40°C to +85°C industrial grade - suitable for uncontrolled ambient environments |
Pinout & Package
Package: 20-pin SOIC (Small Outline Integrated Circuit), 0.300-inch body width, JEDEC MS-013AC standard - compatible with automated SMT placement and reflow profiles for high-volume manufacturing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power Supply | Main positive supply (2.7–5.5 V); decoupling capacitor required at pin |
| VSS | Ground | Digital ground reference; must be connected to system GND plane |
| OSC1 / XTAL1 | Crystal Input | Input to crystal amplifier; used with external crystal or ceramic resonator |
| OSC2 / PTA4 / BUSCLKX4 | Crystal Output / I/O / Clock Out | Crystal amplifier output; also functions as Port A bit 4 and 4× bus clock source |
| PTA0–PTA3 | Port A General-Purpose I/O | Bi-directional CMOS pins with individually configurable direction and pullup enable |
| PTB0–PTB3 | Port B General-Purpose I/O | Bi-directional CMOS pins; PTB0–PTB2 support keyboard interrupt inputs |
| IRQ | External Interrupt Request | Active-low edge-triggered interrupt input; default priority level 2 |
| RST | Reset Input | Active-low asynchronous reset; initiates full hardware reset sequence on falling edge |
| AD0–AD3 | ADC Analog Inputs | Four dedicated analog input channels shared with Port A pins (PTA0–PTA3) |
Key Features
| Feature | Design Value |
|---|---|
| Auto Wakeup Module (AWU) | Enables periodic wake-from-WAIT using internal RC oscillator - eliminates need for external timer |
| Computer Operating Properly (COP) | Configurable watchdog timer with selectable timeout (0.5 ms to 1.0 s) and disable-on-break option |
| Low-Voltage Inhibit (LVI) | Detects supply drops below 2.5 V (typ.) and asserts reset - prevents erratic code execution |
| Keyboard Interrupt (KBI) | Scans up to 8-key matrix using PTB0–PTB3 with automatic debounce and interrupt-on-change |
| FLASH Block Protection | FLBPR register allows locking/unlocking of 512-byte Flash blocks - secures bootloader or calibration data |
Applications
| Appliance Control Panel | Industrial Sensor Node |
|---|---|
Use Scenario: Keypad-driven user interface on washing machine or HVAC controller with LED feedback and motor timing. IC Role / Device Role / Timing Role: Primary system controller executing state machine logic, scanning keys, driving outputs, and managing ADC-based temperature sensing. Use Value: Integrated KBI and 4-channel ADC reduce BOM count; STOP mode draws <1 µA - extends battery life in cordless remotes. |
Use Scenario: Standalone environmental monitor measuring temperature, humidity, and voltage rail health in factory equipment cabinets. IC Role / Device Role / Timing Role: Data acquisition engine with periodic wake-up, sensor reading, and UART transmission via external transceiver. Use Value: AWU + internal oscillator enables precise 1–60 s wake intervals without external crystal; LVI ensures reliable reset during brownouts. |
| Portable Medical Instrument | Smart Power Outlet |
Use Scenario: Battery-powered blood glucose meter requiring button input, LCD segment drive, and analog signal conditioning. IC Role / Device Role / Timing Role: Main MCU handling analog front-end sampling, button debouncing, display update, and low-power sleep scheduling. Use Value: 2 KB Flash accommodates firmware + calibration tables; 128 B RAM suffices for real-time processing buffers. |
Use Scenario: Energy-monitoring outlet with current sensing, relay control, and status LEDs - deployed in residential smart home systems. IC Role / Device Role / Timing Role: Embedded supervisor managing zero-cross detection, overcurrent shutdown, and non-volatile trip logging. Use Value: COP watchdog prevents lockup during transient EMI events; FLBPR protects stored energy thresholds from corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HLC908QT2CDTE | Same core and memory, but QT variant lacks ADC; uses Port B for general I/O only | Suitable where analog sensing is unnecessary and cost reduction is critical | Select when ADC functionality is not required and board layout allows QT2 pin compatibility |
| MC9RS08KA2CP | RSA08 core, 2 KB Flash, 128 B RAM, but adds SCI/I²C and enhanced debug interface | Better suited for designs requiring serial communication or field firmware updates | Choose for new designs needing upgrade path; not pin-compatible with MCL908QY2CDTE |
Compared with MC68HLC908QT2CDTE, the MCL908QY2CDTE adds integrated ADC capability at identical package and price point; versus MC9RS08KA2CP, it offers lower gate count and simpler toolchain but lacks native serial interfaces - making it optimal for cost-sensitive, analog-light control tasks.
Availability
MCL908QY2CDTE is available at Aetrix Electronics and suitable for appliance control panels, industrial sensor nodes, portable medical instruments, and smart power outlets requiring stable component supply across multi-year production cycles.
Supply support for MCL908QY2CDTE 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) pioneered mixed-signal microcontrollers for automotive, industrial, and consumer markets with emphasis on integration, reliability, and low-power design.
The MCL908QY2CDTE belongs to the MC68HLC908QY/QT family - engineered for cost-sensitive, ultra-low-power embedded control where Flash programmability, on-chip peripherals, and robust reset management are essential.
FAQ
What is the maximum operating frequency of the MCL908QY2CDTE?
The MCL908QY2CDTE supports a maximum bus clock frequency of 20 MHz, derived from its internal RC oscillator (trimmable up to 8 MHz) or external crystal source. The CPU executes instructions at one bus cycle per instruction for most opcodes, enabling deterministic real-time response in control loops and timing-critical applications involving the MCL908QY2CDTE.
Does the MCL908QY2CDTE support in-system programming (ISP)?
Yes, the MCL908QY2CDTE supports in-system programming via its on-chip FLASH memory using standard Freescale MON08 protocol through the BKGD pin. This allows firmware updates without removing the MCL908QY2CDTE from the PCB, and the FLBPR register enables selective protection of bootloader or calibration sectors during field deployment.
How many I/O pins does the MCL908QY2CDTE provide?
The MCL908QY2CDTE provides 8 general-purpose I/O pins: PTA0–PTA3 and PTB0–PTB3. Among these, PTA0–PTA3 double as ADC inputs (AD0–AD3), and PTB0–PTB3 support keyboard interrupt functionality. All pins are CMOS-compatible with individually configurable direction and internal pullup enable - giving full flexibility for the MCL908QY2CDTE's I/O resource allocation.
What low-power modes are available on the MCL908QY2CDTE?
The MCL908QY2CDTE supports two hardware low-power modes: WAIT mode (CPU halted, peripherals active, ~10 µA typical) and STOP mode (all clocks stopped, ~0.5 µA typical). Both modes retain RAM contents and support wake-up via IRQ, KBI, AWU, or reset - making them ideal for battery-powered applications where the MCL908QY2CDTE must balance responsiveness and energy efficiency.
Is the MCL908QY2CDTE pin-compatible with other members of the QY/QT family?
Yes, the MCL908QY2CDTE shares identical 20-pin SOIC packaging and pinout with MC68HLC908QY1CDTE, MC68HLC908QY4CDTE, and MC68HLC908QT2CDTE - enabling drop-in replacement within the same footprint. However, memory size, ADC presence, and oscillator configuration differ between variants, so firmware and peripheral initialization must be verified for each specific MCL908QY2CDTE family member.
MCL908QY2CDTE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- HC08
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HC08
- Core Size:
- 8-Bit
- Speed:
- 2MHz
- Connectivity:
- -
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 13
- Program Memory Size:
- 1.5KB (1.5K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 3.6V
- Data Converters:
- A/D 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCL908QY2CDTE FAQ
1.How can I place an order for MCL908QY2CDTE through Aetrix?
Please submit a Request for Quotation (RFQ) for MCL908QY2CDTE 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 MCL908QY2CDTE reliable?
The price and inventory of MCL908QY2CDTE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCL908QY2CDTE is usually 5 days.
3.What payment methods are accepted for MCL908QY2CDTE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCL908QY2CDTE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCL908QY2CDTE?
MCL908QY2CDTE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCL908QY2CDTE 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 MCL908QY2CDTE?
For technical support, including MCL908QY2CDTE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCL908QY2CDTE requirements.
6.How does Aetrix verify that MCL908QY2CDTE is sourced from the original manufacturer or authorized distributors?
All MCL908QY2CDTE 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 MCL908QY2CDTE meets industry standards.
7.What is the process for return or replacement of MCL908QY2CDTE?
All MCL908QY2CDTE units undergo pre-shipment inspection (PSI). If there is an issue with MCL908QY2CDTE, 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 MCL908QY2CDTE part is unused and in its original packaging.
Return procedure for MCL908QY2CDTE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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