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NXP Semiconductors MCL908QY4CDTE
- Part No.:
- MCL908QY4CDTE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCL908QY4CDTE.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,700
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Product details
Overview
MCL908QY4CDTE from Freescale Semiconductor is an 8-bit HCS08-core microcontroller with 4 KB on-chip FLASH, 192 B RAM, and integrated 8-channel 8-bit ADC. It operates at up to 8 MHz bus frequency, supports STOP/WAIT low-power modes, and targets cost-sensitive embedded control in appliance motor drives and industrial sensor interfaces.
For engineers reviewing the MCL908QY4CDTE datasheet, MCL908QY4CDTE pinout, MCL908QY4CDTE application, or MCL908QY4CDTE equivalent, key selection criteria include its internal oscillator trim capability, COP watchdog timing range (0.5–16 ms), FLASH block protection register (FLBPR) configuration, and compatibility with MC68HLC908QY4-based legacy designs.
Technical Context
The MCL908QY4CDTE implements the M68HC08 CPU core with 16-bit address space, indexed addressing, and a 7-stage instruction pipeline. Its memory map includes 4 KB FLASH (with page/mass erase and programmable block protection), 192 B RAM, and 128 B EEPROM-equivalent data storage via FLASH emulation.
Peripheral integration includes a 4-channel 8-bit ADC with software-triggered conversion, Auto Wakeup Module (AWU) with programmable 1–256 ms wake intervals, and System Integration Module (SIM) managing reset sources (POR, COP, LVI, illegal opcode), clock switching (INTCLK/XTAL/RC), and interrupt prioritization across IRQ, KBI, and TIM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | M68HC08 8-bit CPU with 7-stage pipeline and 16-bit address bus |
| FLASH Memory | 4 KB with page erase (128 B), mass erase, and FLBPR-based block protection |
| RAM Size | 192 bytes for stack, variables, and temporary data storage |
| ADC Resolution | 8-bit with 8 input channels and software-triggered conversion only |
| Bus Frequency | Up to 8 MHz derived from internal oscillator (±2% accuracy after trim) |
| Low-Power Modes | STOP mode (1 μA typical) and WAIT mode (10 μA typical) with wake-on-IRQ/KBI/AWU |
| COP Timeout Range | Configurable 0.5 ms to 16 ms via COPCTL register for system-level fault recovery |
Pinout & Package
Package: 20-pin SOIC (Small Outline Integrated Circuit) with 0.3-inch body width and standard JEDEC MS-013AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply | Primary 3.0–5.5 V DC supply rail for core and I/O |
| VSS | GND | Digital ground reference for all internal logic and analog circuits |
| OSC1 | Crystal input | Connects to one terminal of external 1–8 MHz crystal or ceramic resonator |
| OSC2/PTA4/BUSCLKX4 | Oscillator output / Port A bit 4 / 4× bus clock | Drives crystal load; configurable as GPIO or outputs 4× bus clock for debug/timing |
| RST | Reset input | Active-low asynchronous reset with internal pull-up; triggers full system initialization |
| IRQ | External interrupt | Level-sensitive interrupt input with internal pull-up; highest priority hardware interrupt |
| PTA0–PTA3 | Port A bits 0–3 | Bi-directional I/O pins with individually configurable direction and pull-up enable |
| PTB0–PTB3 | Port B bits 0–3 | Bi-directional I/O pins supporting keyboard interrupt (KBI) scan matrix inputs |
| AD0–AD3 | ADC input channels | Analog inputs shared with PTA0–PTA3; selected via ADCSC register |
Key Features
| Feature | Design Value |
|---|---|
| Internal oscillator trimming | OSCTRIM register allows ±2% fine-tuning of INTCLK for accurate timing without external crystal |
| FLASH block protection | FLBPR register enables selective write-protection of 128-B FLASH pages to prevent firmware corruption |
| Auto Wakeup Module (AWU) | Generates wake events at 1–256 ms intervals using internal RC oscillator-no external components required |
| Keyboard Interrupt (KBI) | Hardware-accelerated 4×4 matrix scan on PTB0–PTB3 with dedicated status/interrupt enable registers |
| Low-voltage inhibit (LVI) | Monitors VDD and asserts reset if voltage drops below 2.6 V (typical) with hysteresis to prevent chatter |
Applications
| Home Appliance Control | Industrial Sensor Interface |
|---|---|
Use Scenario: Microcontroller in washing machine control board managing motor sequencing, water valve actuation, and user interface. IC Role / Device Role / Timing Role: Primary system controller executing real-time state machine logic with ADC sampling of temperature and pressure sensors. Use Value: Integrated AWU enables periodic wake-from-STOP to check door latch status while consuming <1 μA-extending standby battery life. | Use Scenario: Standalone sensor node measuring ambient humidity and reporting via RS-232 to PLC. IC Role / Device Role / Timing Role: Signal acquisition and preprocessing unit converting analog sensor outputs into digital values before serial transmission. Use Value: On-chip 8-bit ADC with software trigger eliminates need for external ADC IC and reduces BOM count by one component. |
| Consumer Electronics Remote | Motor Drive Feedback Controller |
Use Scenario: IR remote control with multi-button keypad and LED feedback. IC Role / Device Role / Timing Role: Keypad scanner and IR carrier generator using KBI and timer module. Use Value: Hardware KBI module scans 4×4 matrix in <10 μs per row-enabling responsive key detection without CPU overhead. | Use Scenario: Brushless DC motor commutation controller monitoring hall-effect sensor inputs. IC Role / Device Role / Timing Role: Real-time input capture and PWM generation coordinator interfacing with external gate driver. Use Value: IRQ pin with fast response (<2 μs latency) ensures precise timing alignment between hall sensor edges and commutation phase transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68HLC908QY4CP | DIP-20 package vs. SOIC-20; identical electrical specs and FLASH/RAM configuration | Suitable for through-hole prototyping or legacy PCBs requiring DIP footprint | Select when manual soldering or breadboard evaluation is required; same firmware compatibility |
| MC9RS08KA2CSCR | RS08 core, 2 KB FLASH, 128 B RAM, no KBI module, different interrupt vector map | Lacks hardware keyboard scan; requires software polling for keypad interfaces | Choose for newer designs where lower cost and smaller die size outweigh loss of KBI acceleration |
Compared with MC68HLC908QY4CP and MC9RS08KA2CSCR, the MCL908QY4CDTE offers optimal balance of legacy design continuity (pin- and code-compatible with QY4 variants), integrated KBI for keypad systems, and SOIC packaging suited for automated SMT production-making it ideal for volume-manufactured appliance controllers.
Availability
MCL908QY4CDTE is available at Aetrix Electronics and suitable for home appliance control, industrial sensor interface, consumer electronics remote, and motor drive feedback controller applications requiring stable component supply and long-term lifecycle support.
Supply support for MCL908QY4CDTE 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) is a global leader in embedded processing solutions, specializing in automotive, industrial, and consumer microcontrollers.
The MCL908QY4CDTE belongs to the HC08 family-a cost-optimized 8-bit MCU line designed for resource-constrained embedded control in appliances, power tools, and basic automation systems.
FAQ
What is the maximum operating frequency of the MCL908QY4CDTE?
The MCL908QY4CDTE supports a maximum bus frequency of 8 MHz, derived from its internal oscillator (trimmable to ±2%) or external crystal/RC source. This frequency governs instruction execution speed, peripheral timing, and ADC conversion rate-enabling sub-100 μs response in real-time control loops. The MCL908QY4CDTE achieves this performance while maintaining low power consumption in active and STOP modes.
Does the MCL908QY4CDTE support in-circuit programming?
Yes, the MCL908QY4CDTE supports in-circuit programming via its single-wire background debug interface (BDM), allowing firmware updates without removing the device from the PCB. This capability relies on the dedicated BKGD pin and requires compatible Freescale BDM hardware and CodeWarrior development tools. The MCL908QY4CDTE's FLASH memory is reprogrammable over 10,000 cycles with data retention exceeding 10 years.
How does the Auto Wakeup Module (AWU) function in the MCL908QY4CDTE?
The AWU in the MCL908QY4CDTE uses an internal RC oscillator to generate wake events at intervals from 1 ms to 256 ms, configurable via the AWUPM register. It operates independently during STOP mode and triggers a wake interrupt without requiring external components. This feature enables the MCL908QY4CDTE to maintain ultra-low power consumption (<1 μA) while periodically checking sensor inputs or communication status-critical for battery-powered remote controls and sensor nodes.
What ADC features are implemented in the MCL908QY4CDTE?
The MCL908QY4CDTE integrates an 8-bit successive-approximation ADC with eight input channels multiplexed across PTA0–PTA3 and dedicated AD0–AD3 pins. Conversion is software-triggered only (no hardware triggers), with typical conversion time of 25 μs per sample. The ADC supports single-ended inputs referenced to VDD/VSS and includes dedicated status and data registers (ADSCR, ADDRH/L) accessible via memory-mapped I/O. No differential mode or built-in averaging is supported in the MCL908QY4CDTE.
Is the MCL908QY4CDTE pin-compatible with other members of the QY/QT family?
Yes, the MCL908QY4CDTE is pin-compatible with MC68HLC908QY4 variants including CP, CD, and CS packages, sharing identical 20-pin SOIC pinout, signal assignments, and I/O register mapping. This compatibility extends to PCB layout, firmware binaries, and development toolchains-allowing direct substitution in existing designs based on MC68HLC908QY4. The MCL908QY4CDTE maintains full functional equivalence with these variants, differing only in ordering suffix and traceability markings.
MCL908QY4CDTE 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:
- 4KB (4K 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:
MCL908QY4CDTE FAQ
1.How can I place an order for MCL908QY4CDTE through Aetrix?
Please submit a Request for Quotation (RFQ) for MCL908QY4CDTE 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 MCL908QY4CDTE reliable?
The price and inventory of MCL908QY4CDTE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCL908QY4CDTE is usually 5 days.
3.What payment methods are accepted for MCL908QY4CDTE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCL908QY4CDTE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCL908QY4CDTE?
MCL908QY4CDTE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCL908QY4CDTE 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 MCL908QY4CDTE?
For technical support, including MCL908QY4CDTE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCL908QY4CDTE requirements.
6.How does Aetrix verify that MCL908QY4CDTE is sourced from the original manufacturer or authorized distributors?
All MCL908QY4CDTE 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 MCL908QY4CDTE meets industry standards.
7.What is the process for return or replacement of MCL908QY4CDTE?
All MCL908QY4CDTE units undergo pre-shipment inspection (PSI). If there is an issue with MCL908QY4CDTE, 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 MCL908QY4CDTE part is unused and in its original packaging.
Return procedure for MCL908QY4CDTE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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