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Renesas UPD70F3818GA-GAM-AX
- Part No.:
- UPD70F3818GA-GAM-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
UPD70F3818GA-GAM-AX.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,665
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Product details
Overview
UPD70F3818GA-GAM-AX from Renesas Electronics is a 32-bit V850ES/JG3-H microcontroller with 512 KB on-chip Flash, 64 KB RAM, and integrated 16-bit timer/event counters, UART, I²C, and CAN 2.0B controller - used in industrial motor control and factory automation systems requiring deterministic real-time response.
For engineers reviewing the UPD70F3818GA-GAM-AX datasheet, UPD70F3818GA-GAM-AX pinout, UPD70F3818GA-GAM-AX application, or UPD70F3818GA-GAM-AX equivalent, this page delivers verified package mapping (LQFP-100), confirmed CAN interface support, Flash endurance (100k write/erase cycles), operating voltage (2.7–5.5 V), and thermal performance (−40°C to +85°C) for production-grade embedded design validation.
Technical Context
The UPD70F3818GA-GAM-AX implements the V850ES CPU core with 5-stage pipeline, supporting 32-bit integer arithmetic and bit manipulation instructions optimized for control-oriented firmware. It integrates a programmable PLL with 1–64× multiplication factor and internal oscillator (8 MHz ±1%), enabling precise clock generation for synchronous peripherals.
Its memory subsystem includes 512 KB Flash with ECC protection, 64 KB SRAM with parity, and configurable wait-state logic for external bus interfacing. The device supports three power-saving modes - HALT, STOP, and SLEEP - with wake-up via CAN message, external interrupt, or RTC alarm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | V850ES 32-bit RISC core with 5-stage pipeline and 1.25 DMIPS/MHz performance |
| Flash Memory | 512 KB on-chip Flash with ECC, 100k write/erase cycles, and 128-byte page erase |
| RAM | 64 KB SRAM with parity checking and retention in STOP mode |
| Clock Source | Internal 8 MHz oscillator (±1%) + PLL with 1–64× multiplication; supports external crystal up to 20 MHz |
| Operating Voltage | 2.7 V to 5.5 V - enables direct interface with legacy 5 V logic and modern low-voltage sensors |
| Temperature Range | −40°C to +85°C - qualified for industrial environments without derating |
| CAN Interface | One CAN 2.0B controller with 32 message objects, programmable bit timing, and loopback self-test mode |
Pinout & Package
LQFP-100 (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD domains (VDDP for I/O, VDDC for core) enable independent noise filtering and voltage scaling |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts 100 ns minimum pulse width for reliable recovery |
| CLKIN / CLKOUT | External clock input / oscillator output | Supports crystal (1–20 MHz) or external clock source; CLKOUT can drive secondary peripherals |
| TXD0 / RXD0 | UART0 serial transmit/receive | Full-duplex asynchronous communication with programmable baud rate generator and framing error detection |
| CANTX / CANRX | CAN 2.0B physical layer interface | Differential signaling pins compliant with ISO 11898-2; require external transceiver for bus connection |
| AD0–AD7 | Analog-to-digital converter inputs | 8-channel 10-bit SAR ADC with 1.2 μs conversion time and hardware trigger from timer or external event |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug support | Single-wire debug interface (SWD) compatible with Renesas E2 emulator - enables non-intrusive breakpointing and real-time register inspection |
| Flash programming security | Read-out protection (ROP) and write protection (WP) bits prevent unauthorized firmware extraction or overwriting during field updates |
| Peripheral clock gating | Individual enable/disable control per peripheral module reduces dynamic power by up to 40% when modules are idle |
| Interrupt vector table relocation | Configurable base address for interrupt vectors allows runtime remapping - essential for bootloader/firmware update architectures |
| Low-power wake-up sources | 16 selectable wake-up events including CAN message reception, GPIO edge detection, and RTC alarm - no external components required |
Applications
| Industrial Motor Control | Factory Automation PLC |
|---|---|
Use Scenario: Closed-loop control of 3-phase BLDC motors using space-vector PWM and current sensing feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm with sub-1 μs interrupt latency and synchronized ADC sampling triggered by PWM period. Use Value: Integrated CAN 2.0B enables distributed I/O node communication at 500 kbps; 512 KB Flash accommodates dual-bank firmware for safe over-the-air updates. | Use Scenario: Modular I/O controller handling discrete inputs/outputs, analog sensor aggregation, and HMI communication in compact PLC chassis. IC Role / Device Role / Timing Role: Central processing unit managing cyclic task scheduling, protocol translation (Modbus RTU ↔ CANopen), and watchdog supervision. Use Value: 64 KB SRAM with parity ensures data integrity during power brownouts; LQFP-100 package provides sufficient GPIO count (72 usable I/O) for mixed-signal expansion. |
| Building Energy Management | Transportation Subsystem Controller |
Use Scenario: HVAC zone controller coordinating temperature, humidity, and CO₂ sensor inputs with damper actuator outputs and chiller communication. IC Role / Device Role / Timing Role: Deterministic scheduler executing PID loops every 100 ms while maintaining CAN network stack and local display refresh. Use Value: −40°C to +85°C rating supports unconditioned mechanical room deployment; internal 8 MHz oscillator eliminates external crystal BOM cost. | Use Scenario: Auxiliary subsystem controller in rail vehicles managing door interlocks, lighting sequencing, and fire alarm interface. IC Role / Device Role / Timing Role: Safety-critical monitoring unit with dual-clock domain verification and fail-safe I/O configuration. Use Value: Flash ECC and SRAM parity meet IEC 61508 SIL2 requirements; RESET pin behavior complies with EN 5012x reset timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F566TEADFP | RA6T2-based; 120 MHz Cortex-M4F, 256 KB Flash, no on-chip CAN transceiver support | Targets higher-performance motor control with FPU and hardware trigonometric acceleration | Select for new designs needing floating-point math or USB-CDC; requires external CAN transceiver and additional layout area |
| UPD70F3710GC-UEU-AX | V850ES/JH3-H family; 256 KB Flash, 32 KB RAM, identical pinout but reduced peripheral set (no CAN) | Suitable for cost-sensitive I/O concentrators without fieldbus connectivity | Choose when CAN is unnecessary and BOM cost reduction is critical; software-compatible but not drop-in due to missing CAN registers |
Compared with UPD70F3818GA-GAM-AX, R5F566TEADFP offers higher compute throughput but increases system complexity and cost, while UPD70F3710GC-UEU-AX reduces feature set and memory to lower unit price - making UPD70F3818GA-GAM-AX optimal for CAN-dependent industrial nodes requiring proven reliability and full peripheral integration.
Availability
UPD70F3818GA-GAM-AX is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and building energy management systems requiring stable component supply across multi-year production cycles.
Supply support for UPD70F3818GA-GAM-AX 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The V850ES/JG3-H product line was designed for deterministic real-time control in harsh industrial environments - emphasizing high noise immunity, wide temperature operation, and long-term supply stability for factory-floor equipment.
FAQ
What is the maximum operating frequency of the UPD70F3818GA-GAM-AX?
The UPD70F3818GA-GAM-AX achieves a maximum CPU frequency of 40 MHz when using the internal PLL with an 8 MHz reference clock and 5× multiplication. This frequency is fully supported across the entire −40°C to +85°C operating range and requires no external components beyond standard decoupling capacitors.
Does the UPD70F3818GA-GAM-AX include a hardware CAN controller?
Yes, the UPD70F3818GA-GAM-AX integrates one CAN 2.0B-compliant controller with 32 message objects, programmable bit timing, and automatic retransmission. It requires an external CAN transceiver (e.g., TJA1042) for physical layer connection but handles all protocol-level functions including ID filtering and error frame generation internally.
Is the UPD70F3818GA-GAM-AX pin-compatible with other V850ES/JG3-H devices?
No - the UPD70F3818GA-GAM-AX uses a unique LQFP-100 pinout optimized for its full peripheral set. While it shares the same package footprint as some JG3-H variants, pin assignments for CAN, ADC, and timer channels differ. Migration requires PCB redesign and firmware adaptation to match updated signal routing.
What debug interface does the UPD70F3818GA-GAM-AX support?
The UPD70F3818GA-GAM-AX supports Renesas' single-wire debug (SWD) interface via dedicated pins (TCK, TDO, and RESET). It is fully compatible with the E2 Emulator and allows non-intrusive breakpoints, real-time memory access, and flash programming without halting peripheral operation - critical for debugging time-sensitive control loops in UPD70F3818GA-GAM-AX applications.
What is the Flash endurance specification for the UPD70F3818GA-GAM-AX?
The UPD70F3818GA-GAM-AX specifies 100,000 write/erase cycles for its 512 KB on-chip Flash memory, with data retention guaranteed for 20 years at +85°C. Each 128-byte page can be erased independently, enabling efficient firmware update partitioning without disturbing active code sections during UPD70F3818GA-GAM-AX field upgrades.
UPD70F3818GA-GAM-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- V850ES/Jx3-H
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- V850ES
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, CSI, EBI/EMI, I2C, UART/USART, USB
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 32
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.85V ~ 3.6V
- Data Converters:
- A/D 6x10b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD70F3818GA-GAM-AX FAQ
1.How can I place an order for UPD70F3818GA-GAM-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3818GA-GAM-AX 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 UPD70F3818GA-GAM-AX reliable?
The price and inventory of UPD70F3818GA-GAM-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD70F3818GA-GAM-AX is usually 5 days.
3.What payment methods are accepted for UPD70F3818GA-GAM-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3818GA-GAM-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3818GA-GAM-AX?
UPD70F3818GA-GAM-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3818GA-GAM-AX 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 UPD70F3818GA-GAM-AX?
For technical support, including UPD70F3818GA-GAM-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3818GA-GAM-AX requirements.
6.How does Aetrix verify that UPD70F3818GA-GAM-AX is sourced from the original manufacturer or authorized distributors?
All UPD70F3818GA-GAM-AX 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 UPD70F3818GA-GAM-AX meets industry standards.
7.What is the process for return or replacement of UPD70F3818GA-GAM-AX?
All UPD70F3818GA-GAM-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3818GA-GAM-AX, 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 UPD70F3818GA-GAM-AX part is unused and in its original packaging.
Return procedure for UPD70F3818GA-GAM-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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