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Renesas M34524EDFP
- Part No.:
- M34524EDFP
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
M34524EDFP.pdf
- Description:
- 4-BIT, OTPROM, 4500 CPU, 6MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:1,324
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Product details
Overview
M34524EDFP from Renesas Electronics is a 4-bit single-chip CMOS microcomputer with One Time PROM (16,384 × 10-bit), 512 × 4-bit RAM, 10-bit A/D converter, LCD control circuit (20 segments × 4 commons), and four 8-bit timers plus one 16-bit timer - used in embedded control of household appliances and consumer electronics.
For engineers reviewing the M34524EDFP datasheet, M34524EDFP pinout, M34524EDFP application, or M34524EDFP equivalent, key selection criteria include its OTP memory size, integrated LCD driver capability, supply voltage range (2.5–5.5 V), interrupt sources (9), and 64-pin QFP package compatibility with legacy 4524 Group designs.
Technical Context
The M34524EDFP implements the 4500-series CPU core with a high-speed through-mode instruction execution time of 0.5 µs at 6 MHz. It supports dual-clock architecture: main clock via ceramic resonator/RC/internal oscillator and sub-clock via 32 kHz quartz crystal.
Its peripheral set includes an 8-bit serial I/O channel, programmable watchdog timer, voltage drop detection reset (typ. 3.5 V), and LCD drive control with selectable bias (1/2, 1/3, 1/4) and duty (2, 3, 4). All timers support reload registers, with Timer 4 offering two reload registers and Timer 5 providing fixed-frequency 16-bit timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 4500-series 4-bit CPU with 0.5 µs min instruction cycle at 6 MHz |
| Memory | 16,384 × 10-bit One Time PROM + 512 × 4-bit RAM (incl. 20 × 4-bit LCD RAM) |
| A/D Converter | 10-bit successive approximation, 8-channel analog input (AIN0–AIN7) |
| LCD Driver | 20 segment outputs, 4 common outputs, software-selectable 1/2–1/4 bias and 2–4 duty |
| Timers | Four 8-bit timers (Timers 1–4) + one 16-bit timer (Timer 5) with fixed division |
| Supply Voltage | 2.5 V to 5.5 V - dependent on oscillation frequency and operation mode |
| Package | 64-pin plastic QFP (64P6N-A), 14 × 14 mm body, 0.8 mm pitch |
| Operating Temp | –20 °C to +85 °C - rated for industrial-grade consumer and appliance applications |
Pinout & Package
64P6N-A is a 64-pin quad flat package with 0.8 mm lead pitch, 14 mm × 14 mm body size, and exposed thermal pad (non-electrical). Pin numbering follows standard top-view counterclockwise layout starting from pin 1 (top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Power supply / Ground | Primary power rails; decoupling required per Renesas layout guidelines |
| RESET | Reset I/O | N-channel open-drain output during reset; accepts external active-low reset input |
| XIN / XOUT | Main clock input/output | Supports ceramic resonator, RC network, or external clock; internal feedback resistor |
| XCIN / XCOUT | Sub-clock input/output | Dedicated 32 kHz quartz crystal interface with internal feedback resistor |
| D0–D7 | I/O port D | 8-bit bidirectional port; D4–D7 multiplexed with SIN/SOUT/SCK/CNTR0; software-configurable N-ch OD/CMOS output |
| P00–P03 / P10–P13 | I/O ports P0/P1 | 4-bit ports each with programmable pull-up and key-on wakeup functions |
| P20–P23 / P30–P33 | Analog input ports | Double-function pins: AIN0–AIN7 mapped directly to P20–P23 and P30–P33 |
| COM0–COM3 / SEG0–SEG19 | LCD driver outputs | 4 common and 20 segment outputs; SEG0–SEG2 double as VLC3–VLC1 LCD power pins |
| C / CNTR1 | Output port C / timer input | Single-bit CMOS output; also serves as CNTR1 input for Timer 3 event counting or PWM output from Timer 4 |
| INT0 / INT1 | External interrupt inputs | Active-low interrupt sources on D8/D9; support key-on wakeup with software enable |
Key Features
| Feature | Design Value |
|---|---|
| OTP Memory Size | 16,384 × 10-bit program storage enables field-programmable firmware without mask cost |
| Integrated LCD Control | Direct drive of 20×4-segment displays eliminates external driver ICs in appliance UIs |
| Dual-Clock System | Independent main clock (up to 6 MHz) and sub-clock (32 kHz) support real-time monitoring and low-power standby |
| 10-Bit A/D Converter | 8-channel precision conversion for sensor interfacing (temperature, voltage, potentiometer) |
| Software-Configurable I/O | All major ports support N-channel open-drain or CMOS output structure selection via register control |
| Low-Power Operation | 20 µA clock operating mode and 0.1 µA RAM-backup current extend battery life in portable devices |
Applications
| Refrigerator Control Panel | Washing Machine UI |
|---|---|
Use Scenario: Real-time display of cycle status, temperature, and error codes on segmented LCD. IC Role / Device Role / Timing Role: M34524EDFP acts as primary UI controller, driving 20-segment × 4-common LCD while sampling thermistor and motor feedback via 10-bit A/D. Use Value: Integrated LCD driver and A/D eliminate discrete support components, reducing BOM count and PCB area by ≥30% versus MCU + driver + ADC solution. | Use Scenario: Monitoring water level, spin speed, and detergent dispensing with button-based user input. IC Role / Device Role / Timing Role: M34524EDFP executes state-machine control logic, reads 10-key keypad via P0/P1 key-on wakeup, and manages motor timing using Timer 5's fixed-division output. Use Value: 9 interrupt sources and 10 key-on wakeup pins allow responsive, low-latency input handling without polling overhead. |
| Induction Cooktop Display | Smart Thermostat Interface |
Use Scenario: Driving high-contrast segmented display under variable ambient light while measuring surface temperature. IC Role / Device Role / Timing Role: M34524EDFP controls LCD bias/duty via software, samples thermocouple via AIN0–AIN3, and triggers fault shutdown using voltage drop detection reset (3.5 V threshold). Use Value: On-chip voltage drop detection provides hardware-level brown-out protection independent of firmware execution. | Use Scenario: Battery-powered wall-mounted unit requiring multi-year operation with local display and sensor readout. IC Role / Device Role / Timing Role: M34524EDFP operates in clock operating mode (20 µA) using XCIN sub-clock, wakes periodically via key-on or timer interrupt to sample ambient sensor and update LCD. Use Value: 0.1 µA RAM-backup current preserves configuration and timekeeping during battery replacement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M34524M8-XXXFP | Mask ROM (8,192 × 10-bit); no field programming capability | Suitable only for high-volume, fixed-firmware production runs | Select when firmware is finalized and cost-per-unit optimization is critical |
| M34524MC-XXXFP | Mask ROM (12,288 × 10-bit); larger ROM than M34524M8 but smaller than M34524EDFP | Mid-volume production with stable firmware; lacks OTP flexibility | Choose for moderate complexity applications where OTP is unnecessary |
Compared with M34524M8-XXXFP and M34524MC-XXXFP, the M34524EDFP uniquely supports field-programmable firmware updates via One Time PROM, enabling prototyping, small-batch customization, and post-manufacture calibration - essential for appliance development cycles requiring iterative firmware validation.
Availability
M34524EDFP is available at Aetrix Electronics and suitable for refrigerator control panels, washing machine UIs, induction cooktop displays, and smart thermostat interfaces requiring stable component supply across extended production lifecycles.
Supply support for M34524EDFP 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
Renesas Electronics Corporation is a Japanese semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.
The 4524 Group - including M34524EDFP - was designed for cost-sensitive, low-power embedded control in household appliances and consumer electronics, emphasizing integrated peripherals (LCD, A/D, timers) to minimize external components.
FAQ
What is the memory configuration of the M34524EDFP?
The M34524EDFP contains 16,384 words × 10 bits of One Time PROM program memory and 512 words × 4 bits of RAM, including 20 words × 4 bits dedicated to LCD display RAM. This configuration supports moderate-complexity firmware with integrated UI data storage, and the OTP nature allows final firmware programming after assembly.
Does the M34524EDFP support LCD bias and duty configuration?
Yes, the M34524EDFP supports software-selectable LCD bias (1/2, 1/3, or 1/4) and duty (2, 3, or 4) via internal control registers. These settings are configured at runtime to match display glass requirements, enabling direct drive of diverse segmented LCD modules without external bias generation circuitry.
What clock sources does the M34524EDFP support?
The M34524EDFP supports multiple clock sources: main clock via ceramic resonator, RC network, or external signal on XIN/XOUT; and sub-clock via 32 kHz quartz crystal on XCIN/XCOUT. The system clock is selected via the MR register, allowing flexible trade-offs between performance (up to 6 MHz) and low-power operation.
How many analog input channels does the M34524EDFP provide?
The M34524EDFP provides eight 10-bit analog input channels (AIN0–AIN7), physically mapped to port pins P20–P23 and P30–P33. These channels use successive approximation conversion and support common sensor interfaces such as thermistors, potentiometers, and voltage monitors in appliance control systems.
Is the M34524EDFP pin-compatible with other 4524 Group microcontrollers?
Yes, the M34524EDFP uses the identical 64P6N-A package and shares full pinout compatibility with M34524M8-XXXFP and M34524MC-XXXFP. All share identical pin functions, electrical characteristics, and peripheral mappings - enabling direct substitution in existing 4524 Group designs when OTP programmability is required.
M34524EDFP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
M34524EDFP FAQ
1.How can I place an order for M34524EDFP through Aetrix?
Please submit a Request for Quotation (RFQ) for M34524EDFP 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 M34524EDFP reliable?
The price and inventory of M34524EDFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M34524EDFP is usually 5 days.
3.What payment methods are accepted for M34524EDFP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M34524EDFP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M34524EDFP?
M34524EDFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M34524EDFP 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 M34524EDFP?
For technical support, including M34524EDFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M34524EDFP requirements.
6.How does Aetrix verify that M34524EDFP is sourced from the original manufacturer or authorized distributors?
All M34524EDFP 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 M34524EDFP meets industry standards.
7.What is the process for return or replacement of M34524EDFP?
All M34524EDFP units undergo pre-shipment inspection (PSI). If there is an issue with M34524EDFP, 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 M34524EDFP part is unused and in its original packaging.
Return procedure for M34524EDFP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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