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Renesas M38588GCSP#U0
- Part No.:
- M38588GCSP#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 42-SDIP (0.600", 15.24mm)
- Datasheet:
-
M38588GCSP#U0.pdf
- Description:
- IC MCU 8BIT 48KB QZROM 42SDIP
- Quantity:
- Payment:
- Shipping:
Inventory:310
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Product details
Overview
M38588GCSP#U0 from Renesas Electronics is an 8-bit CMOS microcomputer based on the 740 family core, designed for embedded control in consumer and office automation equipment. It integrates 48 KB QzROM, 1.5 KB RAM, nine-channel 8-bit A/D converter, dual 16-bit timers, four 8-bit timers, UART/Clock-synchronized serial I/O, and LED-driver-capable I/O ports (P10–P17). Its operating voltage spans 2.7–5.5 V across multiple speed modes.
For engineers reviewing the M38588GCSP#U0 datasheet, M38588GCSP#U0 pinout, M38588GCSP#U0 application, or M38588GCSP#U0 equivalent, key selection considerations include its 42-pin SDIP package (PRDP0042BA-A), built-in ceramic-resonator-compatible clock circuits, watchdog timer, and interrupt architecture with 19 sources and 16 vectors - all critical for cost-sensitive, low-to-mid complexity control designs.
Technical Context
The M38588GCSP#U0 implements the standard 740-family instruction set with 71 basic machine-language instructions and a minimum execution time of 0.32 µs at 12.5 MHz. Its CPU includes accumulator, dual 8-bit index registers (X/Y), 8-bit stack pointer, and 16-bit program counter, with processor status register supporting carry, zero, interrupt disable, decimal mode, overflow, and negative flags.
Memory organization features reserved ROM areas (first 128 bytes and last 2 bytes), user-accessible 48 KB QzROM, and 1.5 KB RAM with dedicated stack page selection via CPUM register. Clock generation supports main oscillator (XIN/XOUT) and sub-oscillator (XCIN/XCOUT) circuits, enabling high-speed (φ = f(XIN)/2), middle-speed (φ = f(XIN)/8), and low-speed (φ = f(XCIN)/2) operation modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 740-family 8-bit architecture with 71 instructions and 0.32 µs min instruction cycle at 12.5 MHz |
| ROM Size | 48 KB QzROM - provides ample space for firmware with bootloader and application logic in single-chip design |
| RAM Size | 1.5 KB - supports real-time data buffering, stack operations, and peripheral register shadowing |
| A/D Converter | 8-bit × 9 channels - enables analog sensor interfacing (e.g., temperature, light, potentiometer) without external ADC |
| Timers | 8-bit × 4 + 16-bit × 2 - delivers flexible timing for PWM generation, event counting, and interval measurement |
| Serial Interfaces | UART + clock-synchronized serial I/O × 2 - supports host communication and daisy-chain peripheral control |
| Operating Voltage | 2.7–5.5 V across all speed modes - ensures compatibility with common 3.3 V and 5 V system rails |
| Package | 42-pin shrink plastic-molded SDIP (PRDP0042BA-A) - through-hole mountable for prototyping and industrial PCBs |
Pinout & Package
Package: PRDP0042BA-A - 42-pin shrink plastic-molded SDIP, 0.6-inch width, 0.1-inch lead pitch, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Primary digital power domain; VSS must be connected to system ground for stable logic operation |
| XIN / XOUT | Main clock oscillator interface | Connects external ceramic resonator or quartz crystal; enables high-speed (12.5 MHz) or mid-speed (6 MHz) operation |
| XCIN / XCOUT | Sub-clock oscillator interface | Supports low-power 32 kHz operation; used for RTC-like timing or sleep-mode wake-up |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes peripherals to known state |
| P10–P17 | LED drive I/O port | Capable of sourcing higher current for direct LED segment or indicator driving without external drivers |
| P00–P07, P10–P17, P20–P27, P30–P34, P40–P44 | Programmable bidirectional I/O | Each pin configurable as input/output with software-controlled pull-up; supports interrupt-on-change (INT0–INT3) |
| AN0–AN8 | Analog input channels | Eight dedicated pins (P30–P34, P04–P07) + AVSS/VREF reference - forms complete 9-channel A/D subsystem |
| RxD / TxD | UART receive/transmit | Full-duplex asynchronous serial interface compliant with standard TTL-level RS-232 framing |
| SIN2 / SOUT2 / SCLK2 | Clock-synchronized serial I/O | Master/slave SPI-like interface for peripheral expansion (e.g., display drivers, EEPROMs) |
| PWM | Pulse-width modulation output | Dedicated 8-bit PWM channel on P44 - suitable for fan speed control or dimming applications |
Key Features
| Feature | Design Value |
|---|---|
| On-chip software pull-up resistors | Configurable per-bit on all I/O ports - eliminates need for external pull-ups in button/key matrix or open-drain interfaces |
| Interrupt architecture | 19 sources (8 external, 10 internal, 1 software) with 16 vector table entries - enables prioritized, low-latency response to real-time events |
| Watchdog timer | 16-bit free-running timer with independent clock source - prevents system lockup in unattended consumer appliances |
| LED-driving I/O capability | P10–P17 support enhanced current drive - allows direct connection of common-anode LED displays without buffer transistors |
| ROM code protection | Hardware-enforced read/write disable via FFDB₁₆ address - prevents firmware reverse engineering in mass-produced devices |
| Multiple clock domains | Independent main and sub-clock circuits - enables dynamic power management by switching between high-performance and ultra-low-power modes |
Applications
| Home Appliance Control | Office Equipment Automation |
|---|---|
Use Scenario: Microcontroller in microwave oven control panel managing keypad input, display refresh, cooking timer, and relay sequencing. IC Role / Device Role / Timing Role: Central controller executing real-time cooking logic, scanning 5×4 keypad matrix, driving 7-segment LED display via P10–P17, and generating PWM for fan speed. Use Value: Integrated 9-channel A/D reads temperature sensor (AN0), while dual 16-bit timers precisely manage cook duration and turntable rotation intervals. |
Use Scenario: Embedded controller in document shredder monitoring paper feed, jam detection, motor direction, and thermal cutoff. IC Role / Device Role / Timing Role: System supervisor handling GPIO-based limit switches (P40–P44), reading thermistor via AN5, and controlling DC motor via PWM and H-bridge enable signals. Use Value: UART interface (RxD/TxD) enables service diagnostics; watchdog timer ensures fail-safe shutdown during abnormal thermal conditions. |
| Consumer Audio Device | Industrial Panel Meter |
Use Scenario: Main MCU in portable CD player managing IR remote decoding, LCD contrast control, motor speed regulation, and battery voltage monitoring. IC Role / Device Role / Timing Role: Real-time audio subsystem coordinator using serial I/O2 (SIN2/SOUT2/SCLK2) for DAC communication and 8-bit timers for IR carrier generation. Use Value: Built-in 8-bit A/D converter measures battery voltage (AN1) and headphone impedance; programmable I/O supports rotary encoder input (P41/P42). |
Use Scenario: Front-end controller in DIN-rail mounted panel meter acquiring analog sensor inputs (4–20 mA loop, thermocouple), driving 4-digit LED display, and logging data via RS-232. IC Role / Device Role / Timing Role: Signal acquisition engine sampling up to 9 analog channels (AN0–AN8), performing linearization, and formatting ASCII output via UART. Use Value: 42-pin SDIP package allows robust through-hole mounting in harsh industrial environments; wide 2.7–5.5 V supply accommodates fluctuating 24 VDC-derived rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M38588GCFP#U0 | Same die, 42-pin SSOP (PRSP0042GA-A/B) package - surface-mount, 0.5 mm pitch, smaller footprint | Preferred for automated SMT production; less suitable for hand-soldered prototypes or vibration-prone enclosures | Select when board space is constrained and reflow assembly is available. |
| UPD78F0503MC-GBA-AX | 78K0R/KE2 core, 64 KB Flash, 4 KB RAM, 10-bit A/D, 32-pin LQFP - newer architecture with Flash memory and enhanced peripherals | Supports field firmware updates and larger applications; lacks native LED-drive I/O strength and 42-pin SDIP form factor | Choose for upgrade paths requiring reprogrammability and higher precision sensing. |
Compared with M38588GCSP#U0, the M38588GCFP#U0 offers identical functionality in a space-saving SSOP package ideal for volume manufacturing, while the UPD78F0503MC-GBA-AX provides modern Flash-based flexibility and higher-resolution A/D at the cost of legacy pin compatibility and through-hole mounting.
Availability
M38588GCSP#U0 is available at Aetrix Electronics and suitable for home appliance control, office equipment automation, and industrial panel meter applications requiring stable component supply and long-term manufacturability.
Supply support for M38588GCSP#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 SoC solutions for automotive, industrial, and consumer markets.
The 3858 Group was developed by Renesas Electronics (formerly NEC Electronics) specifically for cost-effective, reliable embedded control in household products and office automation equipment - emphasizing integration, low-power operation, and ease of system design.
FAQ
What is the maximum operating frequency supported by the M38588GCSP#U0?
The M38588GCSP#U0 supports a maximum oscillation frequency of 12.5 MHz using the main clock circuit (XIN/XOUT). At this frequency, the minimum instruction execution time is 0.32 µs. The device also supports lower-speed modes including 6 MHz (high-speed mode), middle-speed (φ = f(XIN)/8), and low-speed (32 kHz via XCIN/XCOUT), enabling flexible power/performance trade-offs in the M38588GCSP#U0 design.
Does the M38588GCSP#U0 include hardware debug or programming interfaces?
The M38588GCSP#U0 does not integrate on-chip debug modules like JTAG or SWD. Programming is performed via serial programming using the dedicated pins (e.g., P00–P03 for serial data/control), and ROM code protection is enforced through the FFDB₁₆ address. Debugging requires external in-circuit emulators compatible with the 740-family architecture, as confirmed in the M38588GCSP#U0 functional description and pin configuration documentation.
Can the M38588GCSP#U0 operate from a 3.3 V supply?
Yes, the M38588GCSP#U0 operates over a supply range of 2.7–5.5 V across all speed modes, fully supporting 3.3 V nominal systems. When powered at 3.3 V, it maintains full functionality including 12.5 MHz operation (with appropriate external resonator), A/D conversion, and I/O drive - verified in the "Power source voltage" section of the M38588GCSP#U0 datasheet revision 1.11.
How many analog input channels does the M38588GCSP#U0 support, and what is their resolution?
The M38588GCSP#U0 integrates a single 8-bit successive-approximation A/D converter with nine input channels (AN0–AN8), mapped to pins P30–P34, P04–P07, and P44. Reference voltage is supplied externally via VREF, and analog ground is connected to AVSS. This specification is explicitly stated in the "FEATURES" and "PIN DESCRIPTION" sections of the M38588GCSP#U0 documentation.
Is the M38588GCSP#U0 RoHS compliant?
Yes, the M38588GCSP#U0 complies with the EU RoHS Directive, as confirmed by Renesas Electronics' environmental compliance statements and product marking. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits - consistent with Renesas' commitment to environmentally responsible manufacturing reflected in the M38588GCSP#U0 product documentation.
M38588GCSP#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 42-SDIP (0.600", 15.24mm)
- 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:
- Through Hole
- Supplier Device Package:
M38588GCSP#U0 FAQ
1.How can I place an order for M38588GCSP#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for M38588GCSP#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 M38588GCSP#U0 reliable?
The price and inventory of M38588GCSP#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38588GCSP#U0 is usually 5 days.
3.What payment methods are accepted for M38588GCSP#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38588GCSP#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M38588GCSP#U0?
M38588GCSP#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38588GCSP#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 M38588GCSP#U0?
For technical support, including M38588GCSP#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38588GCSP#U0 requirements.
6.How does Aetrix verify that M38588GCSP#U0 is sourced from the original manufacturer or authorized distributors?
All M38588GCSP#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 M38588GCSP#U0 meets industry standards.
7.What is the process for return or replacement of M38588GCSP#U0?
All M38588GCSP#U0 units undergo pre-shipment inspection (PSI). If there is an issue with M38588GCSP#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 M38588GCSP#U0 part is unused and in its original packaging.
Return procedure for M38588GCSP#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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