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Renesas M38267E8GP
- Part No.:
- M38267E8GP
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
M38267E8GP.pdf
- Description:
- 8-BIT, OTPROM, MELPS740 CPU
- Quantity:
- Payment:
- Shipping:
Inventory:5,994
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Product details
Overview
M38267E8GP from Renesas Electronics is an 8-bit CMOS microcontroller based on the 740 family core, integrating LCD drive control (4 common, 40 segment outputs), 8-channel 8-bit A-D converter, dual 8-bit D-A converters (for DTMF/CTCSS), UART, clock-synchronous serial I/O, PWM, and real-time port functions. It operates from 2.5–5.5 V and supports –20 to +85°C ambient, targeting embedded consumer appliance control.
For engineers reviewing the M38267E8GP datasheet, M38267E8GP pinout, M38267E8GP application, or M38267E8GP equivalent, key selection criteria include its 100-pin QFP package (100P6Q-A), 32 KB ROM / 1024-byte RAM configuration, built-in LCD bias/duty control (1/2, 1/3, 1/4), and dual A-D/D-A capability for audio-tone generation and sensor interfacing.
Technical Context
The M38267E8GP implements a 740-family CPU core with 71 basic instructions and 0.5 µs minimum instruction cycle at 8 MHz. It features two independent clock generating circuits-one for main system timing (via external ceramic resonator or quartz crystal between XIN/XOUT) and one for sub-clock operation (via XCIN/XCOUT).
Its peripheral set includes three 8-bit timers, two 16-bit timers, UART with programmable baud rate, clock-synchronous serial I/O1 and I/O2, 8-bit PWM output, and a dedicated LCD drive control circuit supporting 1/2, 1/3, or 1/4 duty and 1/2 or 1/3 bias configurations-enabling direct driving of multiplexed LCD displays without external drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 740 family 8-bit architecture with 71 instructions and 0.5 µs min. execution time at 8 MHz |
| ROM Size | 32 KB mask-programmed ROM (user area: 32,638 bytes) |
| RAM Size | 1024 bytes on-chip RAM for data storage and stack operations |
| Supply Voltage | 2.5–5.5 V DC; enables compatibility with standard 3.3 V and 5 V logic systems |
| A-D Converter | 8-bit resolution, 8-channel single-ended input for analog sensor interfacing |
| D-A Converters | Dual 8-bit outputs (DA1, DA2) supporting DTMF tone generation and CTCSS signaling |
| LCD Drive | Supports 1/2, 1/3, or 1/4 duty and 1/2 or 1/3 bias; drives up to 40 segments × 4 commons |
| Operating Temp | –20°C to +85°C industrial temperature range for reliable consumer appliance deployment |
Pinout & Package
Package: 100-pin plastic QFP (100P6Q-A), 0.5 mm pitch, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Main digital power (2.5–5.5 V) and reference ground for all digital logic and I/O |
| XIN / XOUT | Main clock oscillator interface | Connects external ceramic resonator or quartz crystal; enables precise 8 MHz system timing |
| XCIN / XCOUT | Sub-clock oscillator interface | Drives low-power 32 kHz sub-clock for RTC and watchdog timer operation |
| COM0–COM3 | LCD common outputs | Drive LCD backplane lines; COM2/COM3 unused in 1/2-duty mode; COM3 unused in 1/3-duty mode |
| SEG0–SEG39 | LCD segment outputs | Direct drive of up to 40 LCD frontplane segments; shared with P0–P3 port pins |
| P50/PWM0, P51/PWM1 | PWM output terminals | Generate variable-duty-cycle signals for motor control or LED dimming |
| P56/DA1, P57/ADT/DA2 | D-A converter outputs | Provide analog voltage outputs for DTMF (DA1) and CTCSS (DA2) tone synthesis |
| P60–P67/AN0–AN7 | A-D converter inputs | Eight single-ended analog input channels for sensor signal acquisition |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD controller | Eliminates need for external LCD driver IC; supports 1/2, 1/3, 1/4 duty and 1/2, 1/3 bias |
| Dual 8-bit D-A converters | Enables simultaneous DTMF and CTCSS tone generation without external DACs or tone chips |
| Real-time port (RTP) | Provides dedicated hardware for calendar/timekeeping functions using sub-clock domain |
| Software-configurable pull-up resistors | Reduces BOM count by eliminating external pull-ups on 55 programmable I/O ports |
| Low-power modes | 60 µW consumption in low-speed mode (32 kHz, 3 V) extends battery life in portable devices |
Applications
| Camera Control Unit | Home Appliance UI Panel |
|---|---|
Use Scenario: Managing LCD display, button inputs, and audio feedback in compact digital cameras. IC Role / Device Role / Timing Role: Central microcontroller handling LCD drive, key-on wake-up interrupts, and DTMF/CTCSS tone generation for remote control confirmation. Use Value: Single-chip integration of LCD, A-D, D-A, and UART reduces component count and PCB area versus discrete solutions. | Use Scenario: Controlling display, temperature sensing, and user interface in microwave ovens or washing machines. IC Role / Device Role / Timing Role: System controller executing real-time port functions for timer-based cooking cycles and A-D conversion for thermistor readings. Use Value: Built-in 8-channel A-D converter and 1024-byte RAM enable local sensor processing without external ADC or memory. |
| Consumer Audio Remote | Portable Medical Monitor |
Use Scenario: Generating standardized DTMF tones and driving segmented LCD in universal IR/audio remotes. IC Role / Device Role / Timing Role: Tone generator and display driver using dual D-A outputs (DA1/DA2) and 40-segment LCD support. Use Value: On-chip D-A converters eliminate external tone-generation ICs, lowering cost and design complexity. | Use Scenario: Monitoring pulse rate and displaying results on low-power LCD in handheld health devices. IC Role / Device Role / Timing Role: Low-voltage-capable MCU (2.5 V min) with integrated A-D and LCD drive for battery-powered operation. Use Value: 60 µW low-speed mode and internal LCD bias circuit extend battery life while maintaining display visibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M38267M8LXXXGP | Mask ROM version with identical 100P6Q-A package and peripheral set; rated for 2.2–5.5 V low-voltage operation | Targeted at battery-powered designs requiring extended low-VDD range; lacks field-programmability of EPROM version | Select M38267M8LXXXGP when production volume justifies mask ROM and lower supply voltage is required. |
| M3826AEFGP | 60 KB ROM / 2560-byte RAM variant in same 100P6Q-A package; retains full peripheral complement including LCD, A-D, D-A, UART | Suitable for feature-rich appliances needing larger firmware space and more RAM for complex UI or communication stacks | Choose M3826AEFGP when application firmware exceeds 32 KB or requires >1 KB RAM for buffer-intensive tasks. |
Compared with M38267E8GP, M38267M8LXXXGP offers wider voltage tolerance but no field reprogrammability, while M3826AEFGP provides significantly more memory headroom at identical pinout and peripheral functionality-making it ideal for scalable product families.
Availability
M38267E8GP is available at Aetrix Electronics and suitable for camera control units, home appliance UI panels, and consumer audio remotes requiring stable component supply across long-lifecycle consumer electronics programs.
Supply support for M38267E8GP 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 formed in 2010 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.
The 3826 Group was designed specifically for cost-sensitive, LCD-based consumer electronics requiring integrated analog peripherals, low-power operation, and compact packaging-targeting camera, appliance, and remote-control applications.
FAQ
What is the maximum operating frequency of the M38267E8GP?
The M38267E8GP achieves a minimum instruction execution time of 0.5 µs at an 8 MHz oscillation frequency, meaning its maximum reliable system clock frequency is 8 MHz when using the main clock generating circuit with an external ceramic resonator or quartz crystal connected between XIN and XOUT pins. This timing is validated across the full 2.5–5.5 V supply range and –20 to +85°C temperature range.
Does the M38267E8GP support in-circuit programming?
No, the M38267E8GP is an EPROM/One Time PROM version and does not support in-circuit programming. It is factory-programmed with fixed firmware and cannot be reprogrammed after soldering. Programming must be performed prior to assembly using a dedicated EPROM programmer compatible with the 100D0 or QFP package variants. The M38267E8GP datasheet confirms this is a one-time programmable device.
How many LCD segments can the M38267E8GP drive directly?
The M38267E8GP drives up to 40 LCD segments directly via its integrated LCD drive control circuit, which supports 4 common outputs (COM0–COM3) and 40 segment outputs (SEG0–SEG39). Segment pins are multiplexed with port P0 through P3, and the controller supports 1/2, 1/3, or 1/4 duty and 1/2 or 1/3 bias configurations-enabling flexible display sizing without external drivers.
What are the A-D and D-A converter specifications of the M38267E8GP?
The M38267E8GP integrates an 8-bit, 8-channel single-ended A-D converter for analog sensor interfacing and two independent 8-bit D-A converters (DA1 and DA2) used specifically for DTMF and CTCSS tone generation. Both D-A outputs are accessible on dedicated pins (P56 and P57), and the A-D inputs map to P60–P67 (AN0–AN7), with VREF and AVSS pins provided for precision reference.
Is the M38267E8GP pin-compatible with other members of the 3826 Group?
Yes, the M38267E8GP in the 100P6Q-A package shares identical pinout and electrical characteristics with other 3826 Group members in the same package type-including M38267M8LXXXGP, M3826AEFGP, and M3826AEFFP-enabling hardware reuse across ROM size, voltage grade, and memory type variants. Pin compatibility is confirmed in Renesas' official 3826 Group documentation and part numbering guide.
M38267E8GP 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:
M38267E8GP FAQ
1.How can I place an order for M38267E8GP through Aetrix?
Please submit a Request for Quotation (RFQ) for M38267E8GP 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 M38267E8GP reliable?
The price and inventory of M38267E8GP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M38267E8GP is usually 5 days.
3.What payment methods are accepted for M38267E8GP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M38267E8GP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M38267E8GP?
M38267E8GP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M38267E8GP 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 M38267E8GP?
For technical support, including M38267E8GP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M38267E8GP requirements.
6.How does Aetrix verify that M38267E8GP is sourced from the original manufacturer or authorized distributors?
All M38267E8GP 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 M38267E8GP meets industry standards.
7.What is the process for return or replacement of M38267E8GP?
All M38267E8GP units undergo pre-shipment inspection (PSI). If there is an issue with M38267E8GP, 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 M38267E8GP part is unused and in its original packaging.
Return procedure for M38267E8GP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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