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Renesas M38588GCFP#U0
- Part No.:
- M38588GCFP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 42-SOP (0.330", 8.40mm Width)
- Datasheet:
-
M38588GCFP#U0.pdf
- Description:
- IC MCU 8BIT 48KB QZROM 42SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,324
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Product details
Overview
M38588GCFP#U0 from Renesas Electronics is an 8-bit CMOS microcomputer based on the 740 family core, designed for embedded control in household and office automation equipment. It integrates 48 KB QzROM, 1.5 KB RAM, nine-channel 8-bit A/D converter, dual serial interfaces (UART + clock-synchronized), four 8-bit timers, two 16-bit timers, and PWM output - enabling standalone sensor interfacing and LED-driven HMI control.
For engineers reviewing the M38588GCFP#U0 datasheet, M38588GCFP#U0 pinout, M38588GCFP#U0 application, or M38588GCFP#U0 equivalent, this device serves as a cost-optimized, single-chip solution for low-to-mid complexity real-time control where ROM code protection, internal clock generation, and analog input capability are required.
Technical Context
The M38588GCFP#U0 implements the standard 740-family instruction set with 71 machine-language instructions and a minimum execution time of 0.32 µs at 12.5 MHz. Its CPU includes accumulator, index registers X/Y, 8-bit stack pointer, and 16-bit program counter with stack page selection.
It features two independent clock generating circuits - main clock (XIN/XOUT) supporting ceramic resonator or quartz crystal, and sub-clock (XCIN/XCOUT) for low-power 32 kHz operation - enabling flexible power-mode management across high-speed (4.0–5.5 V), middle-speed (2.7–5.5 V), and low-speed (2.7–5.5 V) operating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 740-family 8-bit CPU with 71 instructions and 0.32 µs min instruction cycle at 12.5 MHz |
| Memory | 48 KB on-chip QzROM (user area), 1.5 KB RAM (including reserved areas) |
| Analog Interface | 9-channel 8-bit A/D converter with AVSS and VREF pins for precision measurement |
| Timers & PWM | Four 8-bit timers, two 16-bit timers (Z1/Z2), and one 8-bit PWM channel for motor/LED control |
| Serial Interfaces | Serial I/O1: UART or clock-synchronized mode; Serial I/O2: clock-synchronized only |
| Operating Voltage | 2.7–5.5 V across all speed modes; high-speed mode requires ≥4.0 V at 12.5 MHz |
| Temperature Range | –20°C to +85°C, qualified for standard-grade industrial and consumer applications |
Pinout & Package
Package: PRSP0042GA-A/B - 42-pin plastic-molded SSOP (Shrink Small Outline Package), surface-mount compatible with 0.65 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary digital power domain; VSS must be connected to 0 V reference |
| AVSS / VREF | Analog ground / Reference voltage | Isolated analog ground and adjustable A/D reference for noise-sensitive measurements |
| XIN / XOUT | Main clock oscillator input/output | Supports external crystal or ceramic resonator (1–12.5 MHz); enables high-speed CPU operation |
| XCIN / XCOUT | Sub-clock oscillator input/output | Connects 32 kHz tuning-fork crystal for low-power standby timing and watchdog operation |
| RESET | Active-low reset input | Asynchronous reset signal; internal pull-up ensures reliable startup without external components |
| P00–P07 | 8-bit general-purpose I/O port | Configurable direction per pin; supports SIN2/SOUT2/SCLK2/SRDY2 serial functions |
| P10–P17 | 8-bit LED drive port | High-current sink capability (up to 20 mA per pin) for direct LED interface without external drivers |
| P40–P44 | Interrupt-capable I/O | Support external interrupt sources (INT0–INT3) and SCMP2 comparator/PWM output |
Key Features
| Feature | Design Value |
|---|---|
| On-chip clock generation | Dual oscillators (main + sub) eliminate need for external clock ICs and reduce BOM count |
| ROM code protection | Hardware-level QzROM lock via FFDB₁₆ address prevents unauthorized read/write during programming |
| Integrated A/D converter | Nine analog inputs with dedicated AVSS/VREF pins enable direct sensor interfacing without external signal conditioning |
| LED drive optimization | P10–P17 ports deliver up to 20 mA sink current per pin, supporting multiplexed LED displays without external transistors |
| Interrupt architecture | 19 interrupt sources (8 external, 10 internal, 1 software) with 16 vector addresses for deterministic real-time response |
Applications
| Home Appliance Control | Office Equipment HMI |
|---|---|
Use Scenario: Microcontroller in microwave oven control panel managing keypad scan, display driver, timer logic, and safety interlock monitoring. IC Role / Device Role / Timing Role: Primary system controller executing real-time cooking sequence, A/D reading of temperature sensor, and PWM-driven fan speed regulation. Use Value: Integrated 9-channel A/D and high-current LED ports reduce external component count while meeting IEC 60335 safety requirements for Class II appliances. |
Use Scenario: Embedded controller in multifunction printer managing paper feed sensors, button inputs, status LEDs, and serial communication with host PC. IC Role / Device Role / Timing Role: Standalone peripheral controller handling local I/O, UART-based command parsing, and LED status indication without host dependency. Use Value: Dual serial interfaces (UART + clock-sync) support simultaneous host communication and internal peripheral control, minimizing firmware complexity. |
| Factory Automation Sensor Node | Consumer Audio Device |
Use Scenario: Compact sensor aggregator in HVAC duct monitor collecting temperature, humidity, and airflow data before forwarding via RS-485. IC Role / Device Role / Timing Role: Data acquisition node performing analog sampling, digital filtering, and protocol framing using on-chip timers and serial I/O. Use Value: 2.7–5.5 V wide supply range and –20°C to +85°C rating ensure reliable operation in unregulated industrial environments. |
Use Scenario: System manager in portable Bluetooth speaker handling battery voltage monitoring, button press detection, LED battery indicator, and audio subsystem enable sequencing. IC Role / Device Role / Timing Role: Power-aware supervisor coordinating sleep/wake transitions, ADC-based battery level estimation, and visual feedback via PWM-brightened LEDs. Use Value: Sub-clock oscillator (32 kHz) enables ultra-low-power wake-on-button functionality while maintaining accurate real-time clock behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M38588GCSP#U0 | Same die, but packaged in 42-pin shrink plastic-molded SDIP (PRDP0042BA-A) instead of SSOP | Preferred for through-hole prototyping or legacy PCBs requiring SDIP footprint | Select when manual soldering, socket-based testing, or compatibility with existing SDIP layouts is required |
| uPD78F0503GC-8EU-A | 78K0-based 8-bit MCU with 64 KB Flash, 4 KB RAM, and enhanced peripherals including CAN interface | Suitable for upgraded designs needing field-programmable memory and automotive-grade communication | Choose when future firmware updates, larger code space, or CAN bus integration are mandatory |
Compared with M38588GCFP#U0, the M38588GCSP#U0 offers identical functionality in a through-hole package for easier evaluation, while the uPD78F0503GC-8EU-A provides Flash memory and CAN support at higher cost and power - making M38588GCFP#U0 optimal for fixed-function, cost-sensitive, volume production.
Availability
M38588GCFP#U0 is available at Aetrix Electronics and suitable for office automation equipment, household appliance control, and factory sensor nodes requiring stable component supply over extended production lifecycles.
Supply support for M38588GCFP#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, and power solutions for industrial, automotive, and consumer markets.
The 3858 Group was developed specifically for cost-sensitive, high-volume embedded control in home and office equipment - emphasizing integrated peripherals, ROM-based reliability, and low-system-cost implementation.
FAQ
What is the maximum operating frequency supported by the M38588GCFP#U0?
The M38588GCFP#U0 supports a maximum main clock frequency of 12.5 MHz, achieving a minimum instruction execution time of 0.32 µs. This frequency is attainable when powered at 4.0–5.5 V in high-speed mode; operation at 6 MHz is supported down to 2.7 V, and sub-clock mode runs at 32 kHz for low-power timing functions.
Does the M38588GCFP#U0 include hardware-based ROM code protection?
Yes, the M38588GCFP#U0 implements hardware ROM code protection via the QzROM code protect address at FFDB₁₆. Writing "00₁₆" to this location disables read/write access through serial programming, preventing unauthorized firmware extraction or modification - a feature confirmed in the official Renesas REJ03B0139-0111 datasheet.
Can the M38588GCFP#U0 drive LEDs directly without external current-limiting resistors?
No - although P10–P17 ports support up to 20 mA sink current per pin for LED drive, external current-limiting resistors are still required to set precise LED brightness and prevent damage under varying VCC conditions. The datasheet specifies absolute maximum ratings but does not waive the need for series resistance in production designs.
What serial communication protocols does the M38588GCFP#U0 natively support?
The M38588GCFP#U0 supports UART (asynchronous) on Serial I/O1, plus clock-synchronized serial I/O on both Serial I/O1 and Serial I/O2. It does not support I²C, SPI, or USB natively; those require bit-banged software implementation or external bridge ICs.
Is the M38588GCFP#U0 qualified for automotive applications?
No - the M38588GCFP#U0 is rated for Standard quality grade per Renesas documentation, targeting office equipment, household products, and consumer electronics. It is not qualified for automotive use (which requires High Quality grade) and lacks AEC-Q100 certification, extended temperature range, or automotive-specific fault diagnostics.
M38588GCFP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 42-SOP (0.330", 8.40mm Width)
- Series:
- 740/38000
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- 740
- Core Size:
- 8-Bit
- Speed:
- 12.5MHz
- Connectivity:
- SIO, UART/USART
- Peripherals:
- PWM, WDT
- Number of I/O:
- 34
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- QzROM
- EEPROM Size:
- -
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 9x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
M38588GCFP#U0 FAQ
1.How can I place an order for M38588GCFP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for M38588GCFP#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 M38588GCFP#U0 reliable?
The price and inventory of M38588GCFP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38588GCFP#U0 is usually 5 days.
3.What payment methods are accepted for M38588GCFP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38588GCFP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M38588GCFP#U0?
M38588GCFP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38588GCFP#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 M38588GCFP#U0?
For technical support, including M38588GCFP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38588GCFP#U0 requirements.
6.How does Aetrix verify that M38588GCFP#U0 is sourced from the original manufacturer or authorized distributors?
All M38588GCFP#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 M38588GCFP#U0 meets industry standards.
7.What is the process for return or replacement of M38588GCFP#U0?
All M38588GCFP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with M38588GCFP#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 M38588GCFP#U0 part is unused and in its original packaging.
Return procedure for M38588GCFP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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