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Renesas M37542F8GP#U0
- Part No.:
- M37542F8GP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
M37542F8GP#U0.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,964
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Product details
Overview
M37542F8GP#U0 from Renesas Electronics is an 8-bit CMOS microcontroller based on the 740 family core, designed for embedded control in home appliances and office automation equipment. It integrates 32 KB + 4 KB Flash ROM, 1024 bytes RAM, dual 8-bit and dual 16-bit timers, eight-channel 10-bit A/D converter, two UART/clock-synchronous serial interfaces, and a built-in oscillator supporting ceramic resonator or RC timing.
For engineers reviewing the M37542F8GP#U0 datasheet, M37542F8GP#U0 pinout, M37542F8GP#U0 application, or M37542F8GP#U0 equivalent, key selection considerations include its 36-pin SSOP (PRSP0036GA-A) package, 8 MHz max operating frequency, 2.7–5.5 V supply range, interrupt-driven I/O with 18 sources/16 vectors, and LED-driving I/O ports with programmable high-drive capability.
Technical Context
The M37542F8GP#U0 implements the 740-family instruction set with 71 base instructions, minimum 0.25 µs instruction execution at 8 MHz in double-speed mode, and supports both mask ROM and Flash variants within the 7542 Group. Its CPU includes 8-bit accumulator, dual 8-bit index registers (X/Y), 16-bit program counter, and 8-bit stack pointer with page-selectable RAM stack area.
On-chip peripherals include two independent serial I/O modules (SI/O1 and SI/O2), each configurable as UART or clock-synchronous interface; four output compare and two input capture channels tied to 8-bit Timer X and 16-bit Timer B; and an A/D converter with dedicated VREF and CNVss pins enabling precise analog sensing across eight channels (six in 32-pin variants).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 740-family 8-bit CPU with 71 instructions and 0.25 µs min instruction time at 8 MHz |
| Memory | 32 KB + 4 KB Flash ROM + 1024 bytes RAM - sufficient for mid-complexity appliance firmware with bootloader space |
| Timers | Dual 8-bit timers + dual 16-bit timers - supports PWM generation, event counting, and time-critical ISR scheduling |
| A/D Converter | 10-bit resolution × 8 channels - enables direct sensor interfacing (e.g., thermistors, potentiometers) without external ADC |
| Serial Interfaces | Two 8-bit serial I/O modules - configurable as UART or synchronous mode for host communication or peripheral bridging |
| Supply Voltage | 2.7–5.5 V - compatible with standard 3.3 V and 5 V system rails; supports RC, ceramic, or crystal clock sources |
| Operating Temp | –20 to +85 °C - rated for commercial/industrial indoor environments including washing machines and printers |
Pinout & Package
Package: PRSP0036GA-A - 36-pin, 0.8 mm pitch plastic SSOP, surface-mount compatible with standard reflow profiles and manual prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated digital power and ground pins; separate CNVSS for A/D reference stability |
| XIN / XOUT | Crystal/resonator interface | Supports external ceramic resonator (4–8 MHz), quartz crystal, or RC network; on-chip oscillator reduces BOM count |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; enables reliable power-on and brown-out recovery |
| P00–P07 | 8-bit bidirectional I/O port | LED-driving capable with software-selectable high-drive mode; includes CAP0, CMP0–CMP3, TXOUT functions |
| P10–P13 | 4-bit bidirectional I/O port | Configurable as UART (RXD1/TXD1), synchronous serial (SCLK1/SRDY1), or capture input (CAP0) |
| P20–P27 | 8-bit analog/digital I/O port | Eight A/D input channels (AN0–AN7); all pins support digital I/O with CMOS/TTL level selectability |
| P30–P37 | 8-bit bidirectional I/O port | Includes INT0/INT1, CMP2/CMP3, CAP1; supports key-wakeup interrupt and comparator functions |
| VREF / CNVSS | Analog reference / A/D ground | Separate low-noise reference and analog ground pins minimize conversion error in mixed-signal operation |
Key Features
| Feature | Design Value |
|---|---|
| Programmable LED drive | High-current output mode selectable per P0 pin - eliminates external drivers for status indicators in appliance UIs |
| Flexible clock source | On-chip oscillator supports RC, ceramic resonator, or crystal - reduces external components and startup time variability |
| Dual serial interfaces | Independent SI/O1 and SI/O2 modules - enables simultaneous UART debug + synchronous sensor interface without resource conflict |
| Interrupt architecture | 18 sources mapped to 16 vectors with priority encoding - ensures deterministic response to critical events like motor stall or overtemperature |
| Analog integration | Eight 10-bit A/D channels with dedicated VREF/CNVSS - delivers ±1 LSB INL for precision temperature and voltage monitoring |
Applications
| Washing Machine Control | Laser Printer Engine |
|---|---|
Use Scenario: Real-time motor phase control, water level sensing, and user interface management in compact front-load washers. IC Role / Device Role / Timing Role: Primary system controller executing PID loop for brushless motor drive, sampling pressure transducer via A/D, and managing LED display via P0 high-drive outputs. Use Value: Integrated timers and comparators eliminate external logic for motor commutation timing; 10-bit A/D enables accurate water level calibration without trimming. |
Use Scenario: Toner delivery coordination, fuser temperature regulation, and paper path jam detection in desktop laser printers. IC Role / Device Role / Timing Role: Central timing and I/O manager synchronizing laser diode firing, thermistor readout, and solenoid actuation using dual serial interfaces and capture inputs. Use Value: Input capture on P10 measures encoder pulses for precise paper advance; dual UARTs support simultaneous host command parsing and internal subsystem logging. |
| Smart Air Conditioner Remote | Office Document Scanner |
Use Scenario: IR signal decoding, button matrix scanning, and battery voltage monitoring in energy-efficient HVAC remotes. IC Role / Device Role / Timing Role: Low-power system controller using key-on wakeup (P37/INT0), internal RC oscillator, and sleep-mode A/D polling of battery voltage. Use Value: Built-in oscillator and wide 2.7–5.5 V range enable single-cell Li-ion or dual-AA operation; programmable pull-ups reduce external resistors for keypad interface. |
Use Scenario: CIS sensor timing control, stepper motor sequencing, and USB bridge handshaking in compact flatbed scanners. IC Role / Device Role / Timing Role: Precision timing generator for CIS line exposure and pixel clock, coordinated with 16-bit Timer A/B for motor acceleration profiles. Use Value: Output compare channels generate jitter-free stepper drive signals; synchronous serial interface configures CIS register settings without additional SPI master. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PLAFB#30 | RL78/G13 core, 32 KB Flash, 4 KB RAM, 20 MHz max, integrated LIN transceiver | Targets automotive body electronics; requires LIN physical layer support not present in M37542F8GP#U0 | Choose for new designs requiring automotive qualification or LIN bus integration; not drop-in compatible |
| HD64F3687FPV | H8/300H core, 64 KB Flash, 4 KB RAM, 20 MHz, no built-in oscillator, 64-pin LQFP | Higher memory and speed; lacks integrated oscillator and LED drive features; larger footprint | Select when firmware complexity exceeds 32 KB or when external clocking and higher I/O count are required |
Compared with R5F100PLAFB#30 and HD64F3687FPV, the M37542F8GP#U0 offers optimal balance of integrated peripherals (oscillator, LED drive, A/D), compact 36-pin SSOP packaging, and proven suitability for cost-sensitive consumer appliance control - without over-provisioning memory or adding unnecessary automotive-grade features.
Availability
M37542F8GP#U0 is available at Aetrix Electronics and suitable for washing machine control, laser printer engine management, smart HVAC remote systems, office document scanners, and home appliance HMI requiring stable component supply across multi-year production cycles.
Supply support for M37542F8GP#U0 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 global semiconductor leader specializing in microcontrollers, analog, power, and connectivity solutions for industrial, automotive, and consumer markets.
The 7542 Group - including M37542F8GP#U0 - was engineered for cost-effective, real-time control in home and office equipment, emphasizing integrated analog peripherals, low-power operation, and robust I/O for electromechanical interface.
FAQ
What is the maximum operating frequency of the M37542F8GP#U0?
The M37542F8GP#U0 supports a maximum oscillation frequency of 8 MHz in double-speed mode, delivering a minimum instruction execution time of 0.25 µs. This timing is achievable using an external ceramic resonator or crystal connected between XIN and XOUT pins, or via the on-chip RC oscillator configured for high-speed operation.
Does the M37542F8GP#U0 include an integrated oscillator?
Yes, the M37542F8GP#U0 features a built-in oscillator circuit that supports RC networks, ceramic resonators, or quartz crystals. When using the on-chip oscillator, XIN is connected to VCC and XOUT is left open - eliminating the need for external timing components in many cost-sensitive applications.
How many A/D converter channels does the M37542F8GP#U0 support?
The M37542F8GP#U0 integrates a 10-bit successive-approximation A/D converter with eight input channels (AN0–AN7). All eight channels are accessible in the 36-pin PRSP0036GA-A package used by M37542F8GP#U0, unlike 32-pin variants which support only six channels.
What package type is used for the M37542F8GP#U0?
The M37542F8GP#U0 is supplied in the PRSP0036GA-A package: a 36-pin, 0.8 mm pitch plastic SSOP (Shrink Small Outline Package). This surface-mount package provides mechanical robustness and thermal performance suitable for reflow soldering in high-volume appliance manufacturing.
Can the M37542F8GP#U0 drive LEDs directly?
Yes, multiple I/O pins on the M37542F8GP#U0 - particularly P00–P07 - support programmable high-drive capability for LED interfacing. This feature allows direct connection of common-anode or common-cathode LEDs without external transistor drivers, reducing BOM cost and PCB area in appliance user interfaces.
M37542F8GP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- 740/38000
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Verified
- Core Processor:
- 740
- Core Size:
- 8-Bit
- Speed:
- 8MHz
- Connectivity:
- SIO, UART/USART
- Peripherals:
- POR, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 5.5V
- Data Converters:
- A/D 6x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
M37542F8GP#U0 FAQ
1.How can I place an order for M37542F8GP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for M37542F8GP#U0 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 M37542F8GP#U0 reliable?
The price and inventory of M37542F8GP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M37542F8GP#U0 is usually 5 days.
3.What payment methods are accepted for M37542F8GP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M37542F8GP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M37542F8GP#U0?
M37542F8GP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M37542F8GP#U0 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 M37542F8GP#U0?
For technical support, including M37542F8GP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M37542F8GP#U0 requirements.
6.How does Aetrix verify that M37542F8GP#U0 is sourced from the original manufacturer or authorized distributors?
All M37542F8GP#U0 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 M37542F8GP#U0 meets industry standards.
7.What is the process for return or replacement of M37542F8GP#U0?
All M37542F8GP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with M37542F8GP#U0, 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 M37542F8GP#U0 part is unused and in its original packaging.
Return procedure for M37542F8GP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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