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Renesas UPD78F0138M2GB(A1)-8EU
- Part No.:
- UPD78F0138M2GB(A1)-8EU
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
UPD78F0138M2GB(A1)-8EU.pdf
- Description:
- 8-BIT, FLASH, UPD78K0 CPU, 12MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:1,767
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Product details
Overview
UPD78F0138M2GB(A1)-8EU from Renesas Electronics is an 8-bit Flash-based microcontroller in the 78K0/KE1 family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and a 16-bit timer/counter with PWM output capability. It operates at up to 20 MHz (with internal high-speed oscillator), supports 5V single-supply operation, and integrates UART, I²C, and 10-bit ADC for embedded control applications in industrial sensors and motor drives.
For engineers reviewing the UPD78F0138M2GB(A1)-8EU datasheet, UPD78F0138M2GB(A1)-8EU pinout, UPD78F0138M2GB(A1)-8EU application, or UPD78F0138M2GB(A1)-8EU equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), operating temperature range (−40°C to +85°C), 64-pin LQFP package compatibility, and support for on-chip debug via single-wire interface.
Technical Context
The UPD78F0138M2GB(A1)-8EU implements the 78K0 CPU core with 16-bit ALU and 32-bit accumulator extension, executing instructions in 1–4 clock cycles. It includes a programmable watchdog timer with independent clock source, power-on reset circuit with selectable threshold (2.85 V ±0.15 V or 3.5 V ±0.2 V), and low-power stop mode consuming ≤1.0 µA typical.
Peripheral integration includes four 16-bit timers (two with complementary PWM outputs), one serial interface (UART or clock-synchronous CSI), one I²C-compatible serial interface, and a 10-channel 10-bit successive-approximation ADC with sample-and-hold and built-in reference voltage (AVREF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0 8-bit CPU with 16-bit ALU and 32-bit accumulator extension for enhanced math throughput |
| Flash Memory | 64 KB on-chip Flash with 10,000 write/erase cycles and 10-year data retention at 85°C |
| RAM Size | 4 KB on-chip RAM, accessible in all operating modes including low-power stop mode |
| Max Operating Frequency | 20 MHz using internal high-speed oscillator (HS) or external crystal (X1/X2) up to 20 MHz |
| ADC Resolution | 10-bit successive-approximation ADC with 10 input channels and built-in AVREF reference |
| Operating Voltage | Single 4.5 V to 5.5 V supply - eliminates need for external voltage regulators in 5 V systems |
| Temperature Range | −40°C to +85°C industrial grade - validated for use in factory automation and HVAC controllers |
Pinout & Package
UPD78F0138M2GB(A1)-8EU is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas User's Manual U16228EJ3V1UD, Section 1.5 and 2.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P06 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART TX/RX, CSI clock/data, and timer capture inputs |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs (INT0–INT3), timer gate control, and ADC trigger signals |
| P20–P27 | Port 2 bidirectional I/O | Includes PWM output pins (PWM0–PWM3), I²C SCL/SDA, and serial interface clock lines |
| RESET | Active-low reset input | Accepts external reset pulse ≥100 ns; internally pulled up; triggers hardware reset and register initialization |
| X1/X2 | Crystal oscillator terminals | Supports 1–20 MHz quartz crystals or ceramic resonators; internal oscillator circuit enables standalone timing |
| VDD/EVDD | Power supply pins | VDD supplies core logic; EVDD supplies analog peripherals (ADC, AVREF) - allows separate noise filtering |
| AVREF | Analog reference voltage input | Accepts external reference (1.5–5.5 V) or connects to internal 2.5 V reference for ADC full-scale calibration |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Single-wire debug (SWD) support enables real-time code download, breakpoint setting, and register inspection without dedicated debug pins |
| Low-power stop mode | ≤1.0 µA typical current draw with RAM retention and wake-up via external interrupt or RTC alarm - extends battery life in portable devices |
| Hardware PWM generator | Four independent 16-bit PWM channels with dead-time insertion and complementary output - suitable for 3-phase motor control |
| Integrated ADC reference | Built-in 2.5 V bandgap reference (±1% accuracy) eliminates need for external precision reference in cost-sensitive sensor nodes |
| Watchdog timer independence | Dedicated 10 kHz on-chip oscillator powers watchdog - ensures reliable timeout even if main clock fails |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Closed-loop speed control of 3-phase BLDC motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, generating synchronized PWM waveforms, and sampling current feedback via ADC. Use Value: Integrated 16-bit timers with complementary PWM and dead-time control reduce external gate-driver complexity and PCB footprint. | Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and CO₂ with wireless reporting. IC Role / Device Role / Timing Role: Data acquisition hub managing sensor interfaces (I²C, analog), local processing, and low-power sleep/wake scheduling. Use Value: Stop-mode current ≤1.0 µA and on-chip 2.5 V ADC reference enable multi-year battery life without external regulators or references. |
| Programmable Logic Controller (PLC) I/O Module | Home Appliance Control Board |
Use Scenario: DIN-rail mounted digital I/O expansion module with isolated inputs and relay drivers. IC Role / Device Role / Timing Role: Real-time I/O state manager handling scan cycles, diagnostics, and communication over RS-485 (via UART). Use Value: UART with automatic baud-rate detection and robust ESD-tolerant I/O pins simplify field-installation and improve noise immunity in factory floors. | Use Scenario: Washing machine main control board managing motor drive, water valve actuation, and user interface. IC Role / Device Role / Timing Role: Central MCU coordinating timing-critical sequences (spin cycle, heating, drain), safety interlocks, and fault logging. Use Value: Power-on reset with dual threshold (2.85 V or 3.5 V) ensures reliable startup across varying line conditions and brown-out scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#30 | RL78/G13-based; 32 KB Flash, 4 KB RAM, lower active current (120 µA/MHz), but no on-chip 2.5 V reference | Preferred for ultra-low-power battery applications where ADC reference stability is handled externally | Select when energy efficiency outweighs need for integrated analog reference and PWM channel count |
| MB95F313KPMC-GSE1 | Fujitsu FM3-based; 64 KB Flash, 8 KB RAM, higher max frequency (48 MHz), but requires external crystal for full performance | Suitable for applications needing faster computation (e.g., PID loop acceleration) and larger code space | Choose when real-time response time is critical and board layout accommodates external crystal and decoupling |
Compared with UPD78F0138M2GB(A1)-8EU, R5F100LEAFB#30 offers better power efficiency but lacks integrated ADC reference and complementary PWM; MB95F313KPMC-GSE1 delivers higher compute throughput but increases BOM cost and layout complexity due to external timing components.
Availability
UPD78F0138M2GB(A1)-8EU is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and home appliance control boards requiring stable component supply and long-term production continuity.
Supply support for UPD78F0138M2GB(A1)-8EU 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 IoT markets.
The UPD78F0138M2GB(A1)-8EU belongs to the 78K0/KE1 family - designed specifically for cost-sensitive, reliability-critical embedded control in industrial equipment and consumer appliances where Flash programmability, analog integration, and low-power operation are essential.
FAQ
What is the maximum operating frequency supported by the UPD78F0138M2GB(A1)-8EU?
The UPD78F0138M2GB(A1)-8EU supports a maximum operating frequency of 20 MHz. This can be achieved using either the internal high-speed oscillator (HS) or an external crystal/resonator connected to X1/X2 pins. The device's instruction execution time ranges from 0.166 µs (at 12 MHz) to 0.125 µs (at 16 MHz), with full 20 MHz operation validated in Renesas' electrical specifications under 4.5–5.5 V supply and −40°C to +85°C ambient conditions. UPD78F0138M2GB(A1)-8EU maintains timing compliance across its specified voltage and temperature range without derating.
Does the UPD78F0138M2GB(A1)-8EU include an on-chip debug interface?
Yes, the UPD78F0138M2GB(A1)-8EU features a single-wire debug (SWD) interface compliant with Renesas' standard on-chip debugging protocol. This allows full visibility into CPU registers, memory, and peripheral states during development without requiring additional debug pins beyond RESET and SWDIO. The interface supports real-time code download, hardware breakpoints, and traceless step execution. UPD78F0138M2GB(A1)-8EU does not require external debug adapters beyond Renesas' E1 or E20 emulators for full functional validation.
What is the Flash memory endurance specification for the UPD78F0138M2GB(A1)-8EU?
The UPD78F0138M2GB(A1)-8EU guarantees 10,000 write/erase cycles for its 64 KB on-chip Flash memory, with data retention maintained for at least 10 years at +85°C ambient temperature. This endurance rating applies to all Flash sectors and is verified per JEDEC JESD22-A117 stress testing methodology. UPD78F0138M2GB(A1)-8EU supports sector erase and byte/word programming, enabling robust firmware update strategies in field-deployed equipment.
Can the UPD78F0138M2GB(A1)-8EU operate from a single 5 V supply?
Yes, the UPD78F0138M2GB(A1)-8EU is designed for single-supply operation from 4.5 V to 5.5 V - making it compatible with standard 5 V logic systems without external regulators. Its internal architecture separates core (VDD) and analog (EVDD) power domains, allowing independent decoupling to minimize noise coupling into ADC and reference circuits. UPD78F0138M2GB(A1)-8EU meets all DC and AC electrical specifications across this full voltage range, including I/O voltage tolerance and timing parameters.
What ADC capabilities does the UPD78F0138M2GB(A1)-8EU provide?
The UPD78F0138M2GB(A1)-8EU integrates a 10-bit successive-approximation ADC with 10 input channels, sample-and-hold circuitry, and programmable conversion clock. It supports both internal (2.5 V bandgap) and external (1.5–5.5 V) reference voltages via the AVREF pin. Conversion time is 12 µs minimum at 1 MHz ADC clock, and the ADC includes built-in offset calibration. UPD78F0138M2GB(A1)-8EU ADC performance is characterized across the full industrial temperature range with ±1 LSB INL and ±0.5 LSB DNL.
UPD78F0138M2GB(A1)-8EU 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:
UPD78F0138M2GB(A1)-8EU FAQ
1.How can I place an order for UPD78F0138M2GB(A1)-8EU through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0138M2GB(A1)-8EU 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 UPD78F0138M2GB(A1)-8EU reliable?
The price and inventory of UPD78F0138M2GB(A1)-8EU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0138M2GB(A1)-8EU is usually 5 days.
3.What payment methods are accepted for UPD78F0138M2GB(A1)-8EU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0138M2GB(A1)-8EU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0138M2GB(A1)-8EU?
UPD78F0138M2GB(A1)-8EU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0138M2GB(A1)-8EU 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 UPD78F0138M2GB(A1)-8EU?
For technical support, including UPD78F0138M2GB(A1)-8EU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0138M2GB(A1)-8EU requirements.
6.How does Aetrix verify that UPD78F0138M2GB(A1)-8EU is sourced from the original manufacturer or authorized distributors?
All UPD78F0138M2GB(A1)-8EU 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 UPD78F0138M2GB(A1)-8EU meets industry standards.
7.What is the process for return or replacement of UPD78F0138M2GB(A1)-8EU?
All UPD78F0138M2GB(A1)-8EU units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0138M2GB(A1)-8EU, 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 UPD78F0138M2GB(A1)-8EU part is unused and in its original packaging.
Return procedure for UPD78F0138M2GB(A1)-8EU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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