Renesas UPD70F3779GF-GAT-AX
- Part No.:
- UPD70F3779GF-GAT-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 128-LQFP
- Datasheet:
-
UPD70F3779GF-GAT-AX.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 128LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
UPD70F3779GF-GAT-AX from Renesas is a 32-bit V850ES/JG3-E single-chip microcontroller with 256 KB Flash, 48 KB RAM (including 16 KB data RAM), 62 I/O lines (35 5V-tolerant), integrated Ethernet controller, USB function controller, 10-bit A/D converter (10 channels), CAN controller, and real-time counter. It operates at 2.85–3.6 V and −40 to +85°C, targeting networked industrial control and embedded gateway applications.
For engineers reviewing the UPD70F3779GF-GAT-AX datasheet, UPD70F3779GF-GAT-AX pinout, UPD70F3779GF-GAT-AX application, or UPD70F3779GF-GAT-AX equivalent, key selection criteria include its 100-pin LQFP package, Ethernet + USB + CAN integration, 50 MHz max clock (20 ns instruction cycle), and JG3-E-specific peripheral set including 5-channel TAA timer, motor control support, and 5-channel CSIF.
Technical Context
The UPD70F3779GF-GAT-AX implements the V850ES architecture with 32-bit barrel shifter, hardware 16×16→32 multiplier, saturation arithmetic, and bit manipulation instructions. Its CPU executes instructions in one clock cycle at up to 50 MHz, enabling deterministic real-time response for time-critical control loops.
It integrates a full Ethernet MAC/PHY interface (MII/RMII), USB 2.0 full-speed function controller, and CAN 2.0B controller - all accessible via dedicated DMA channels. The memory-mapped I/O supports 64 MB linear address space, with on-chip Flash programmed via FLMD0/FLMD1 pins and debug access via MINICUBE2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | V850ES 32-bit RISC CPU with 32×32-bit general-purpose registers and one-cycle instruction execution |
| Max Clock Frequency | 50 MHz (20 ns min instruction execution time); achieved via PLL multiplication of 3–6.25 MHz crystal input |
| Flash / RAM | 256 KB on-chip Flash (programmable in-system); 48 KB RAM (16 KB dedicated data RAM for DMA/peripheral buffering) |
| I/O & Peripherals | 62 GPIO (35 5V-tolerant); 10-bit A/D (10 ch); Ethernet MAC+PHY; USB FS function; CAN 2.0B; 5×16-bit TAA timers; motor control unit |
| Package & Environment | 100-pin LQFP (14×14 mm, 0.5 mm pitch); operating voltage 2.85–3.6 V; ambient temperature −40 to +85°C |
| Power Management | HALT/IDLE1/IDLE2/STOP/subclock/sub-IDLE modes; low-voltage detector (LVI) and clock monitor (CLM) for fail-safe reset |
Pinout & Package
UPD70F3779GF-GAT-AX is housed in a 100-pin plastic LQFP (fine pitch, 14 × 14 mm, 0.5 mm lead pitch) with exposed thermal pad (non-electrical). Pin functions are defined per Renesas R01DS0029EJ0001 Rev.0.01, Page 9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1RXD0–P1RXD3 | Ethernet PHY Receive Data | MII/RMII receive data bus; requires matched trace length and 50 Ω termination for 10/100 Mbps operation |
| P1TXD0–P1TXD3 | Ethernet PHY Transmit Data | MII/RMII transmit data bus; driven by internal MAC; supports both MII and RMII timing modes |
| P1MDC / P1MDIO | PHY Management Interface | IEEE 802.3 MDIO/MDC interface for configuring external PHY registers (e.g., speed, duplex, link status) |
| P90–P98, P912–P915 | Timer/Encoder/CAN I/O | Dedicated high-speed capture/compare outputs (TOABx, TITx) and CAN TX/RX (CTXD0/CRXD0) with glitch filtering |
| P70–P79 | Analog Input / General I/O | 10-channel 10-bit A/D inputs (ANI0–ANI9); configurable as digital I/O with pull-up/down and interrupt capability |
| XT1 / XT2 | Sub-clock Crystal | 32.768 kHz crystal connection for RTC; low-power oscillator circuit with built-in load capacitance |
| X1 / X2 | Main Clock Crystal | 3–6.25 MHz crystal input for PLL-based system clock generation; supports external clock source |
| RESET | Active-low Reset Input | Asynchronous reset assertion clears CPU state and peripherals; debounced internally for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet MAC + PHY | Full MII/RMII interface with P1TXD/P1RXD pins; eliminates need for external PHY in cost-sensitive 10/100 Mbps designs |
| USB 2.0 Full-Speed Function | On-chip USB transceiver (UDMF/UDPF/UVDD) supports HID, CDC, and mass storage class without external PHY |
| CAN 2.0B Controller | Dedicated CRXD0/CTXD0 pins with bit-rate programmability (up to 1 Mbps); supports message objects and FIFO mode |
| Motor Control Unit | Hardware PWM generation with dead-time insertion, complementary output, and emergency shutdown via P90–P98 pins |
| Real-Time Output (RTO) | 6-bit programmable output port (RTP00–RTP05) synchronized to timer events for precise waveform generation |
| Debug Support | MINICUBE2-compatible on-chip debug interface using DDI/DDO/DCK/DRST pins; no external JTAG adapter required |
Applications
| Industrial Ethernet Gateway | USB-Capable Embedded Controller |
|---|---|
|
Use Scenario: Protocol translation between Modbus RTU field devices and Ethernet/IP or TCP/IP networks in factory automation. IC Role / Device Role / Timing Role: Central protocol processor with dual-network interface (Ethernet + RS-485 via UARTC), real-time task scheduling, and deterministic packet forwarding. Use Value: Eliminates external Ethernet PHY and USB transceiver, reducing BOM count and PCB area while maintaining <100 µs interrupt latency for motion control synchronization. |
Use Scenario: Firmware update and configuration interface for medical diagnostic equipment via USB host-connected PC. IC Role / Device Role / Timing Role: USB device endpoint handling CDC ACM class for virtual COM port, with secure flash reprogramming and runtime parameter storage. Use Value: Integrated USB FS function controller enables certified Class-compliant device operation without external silicon, accelerating regulatory approval. |
| Automotive Body Control Module | Smart Home Network Hub |
|
Use Scenario: Central lighting, window, and door control unit in entry-level vehicles requiring CAN communication and PWM-driven LED dimming. IC Role / Device Role / Timing Role: CAN node managing body electronics; motor control unit driving window lifters; A/D monitoring battery voltage and cabin sensors. Use Value: Single-chip integration of CAN, motor control, and analog sensing reduces interconnect complexity and improves EMI robustness in automotive harnesses. |
Use Scenario: Local hub aggregating Zigbee/Z-Wave sensor data and bridging to Ethernet/Wi-Fi backbone in residential IoT deployments. IC Role / Device Role / Timing Role: Ethernet-connected edge processor running lightweight MQTT broker; USB port for local firmware recovery and diagnostics. Use Value: On-chip Ethernet + USB + CAN allows unified connectivity options in compact form factor, supporting field-serviceable updates without disassembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Renesas UPD70F3837GC-UEU-AX | Identical V850ES/JG3-E core, same 100-pin LQFP package, identical Flash/RAM/peripheral set; differs only in ordering suffix (UEU vs GAT) | No functional difference; both support Ethernet, USB, CAN, and motor control in same environmental range | Select UPD70F3779GF-GAT-AX when sourcing from authorized channel with AX suffix compliance; UPD70F3837GC-UEU-AX is direct functional match with alternate marking |
| Renesas UPD70F3836GC-UEU-AX | Same JG3-E family, 100-pin LQFP, but with 256 KB Flash and 48 KB RAM - identical peripheral complement except lacks CAN controller | Suitable for Ethernet+USB-only applications where CAN bus is not required; lower cost due to reduced peripheral mask options | Choose UPD70F3779GF-GAT-AX when CAN 2.0B interface is mandatory; UPD70F3836GC-UEU-AX is viable if CAN can be implemented externally or omitted |
Compared with UPD70F3779GF-GAT-AX, UPD70F3837GC-UEU-AX offers identical functionality and pinout for seamless drop-in replacement, while UPD70F3836GC-UEU-AX removes CAN capability to reduce cost-making it suitable only for non-CAN Ethernet/USB systems.
Availability
UPD70F3779GF-GAT-AX is available at Aetrix Electronics and suitable for industrial gateways, embedded controllers, and automotive body electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for UPD70F3779GF-GAT-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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.
The V850ES/JG3-E product line delivers high-integration 32-bit MCUs for real-time networked systems, combining Ethernet, USB, CAN, and motor control in a single die for industrial automation and smart infrastructure.
FAQ
What is the maximum operating frequency of the UPD70F3779GF-GAT-AX?
The UPD70F3779GF-GAT-AX achieves a maximum system clock of 50 MHz using its on-chip PLL, which multiplies a 3–6.25 MHz crystal input by 8. This yields a minimum instruction execution time of 20 ns, enabling deterministic real-time performance for control applications. The internal oscillator runs at 220 kHz (typical) for low-power standby modes.
Does the UPD70F3779GF-GAT-AX include an integrated Ethernet PHY?
Yes, the UPD70F3779GF-GAT-AX integrates a full Ethernet MAC and PHY compliant with IEEE 802.3 10/100 Mbps standards. It supports both MII and RMII interfaces via dedicated pins (P1RXD0–P1RXD3, P1TXD0–P1TXD3, P1MDC, P1MDIO), eliminating the need for an external PHY chip in most implementations.
Which debug tools are supported for the UPD70F3779GF-GAT-AX?
The UPD70F3779GF-GAT-AX supports Renesas MINICUBE2 and legacy MINICUBE debug adapters via its on-chip debug interface. Debug signals (DDI, DDO, DCK, DRST) are assigned to dedicated pins, enabling full SWD-style debugging, flash programming, and real-time trace without requiring external JTAG headers or complex probe setups.
Is CAN functionality available on the UPD70F3779GF-GAT-AX?
Yes, the UPD70F3779GF-GAT-AX includes a fully compliant CAN 2.0B controller with dedicated CRXD0 and CTXD0 pins. It supports bit rates up to 1 Mbps, message object buffering, and automatic retransmission - confirmed in the R01DS0029EJ0001 datasheet for the V850ES/JG3-E family, specifically enabled on UPD70F3779GF-GAT-AX.
What is the Flash memory size and endurance specification for the UPD70F3779GF-GAT-AX?
The UPD70F3779GF-GAT-AX contains 256 KB of on-chip Flash memory with typical endurance of 10,000 write/erase cycles and data retention of 20 years at 85°C. Programming is performed in-system via FLMD0/FLMD1 pins and supported by Renesas' Flash development toolkit for secure firmware updates.
UPD70F3779GF-GAT-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 128-LQFP
- Series:
- V850ES/Jx3-E
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- V850ES
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- CSI, EBI/EMI, Ethernet, I2C, UART/USART, USB
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 84
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 76K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.85V ~ 3.6V
- Data Converters:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD70F3779GF-GAT-AX FAQ
1.How can I place an order for UPD70F3779GF-GAT-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3779GF-GAT-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 UPD70F3779GF-GAT-AX reliable?
The price and inventory of UPD70F3779GF-GAT-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD70F3779GF-GAT-AX is usually 5 days.
3.What payment methods are accepted for UPD70F3779GF-GAT-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3779GF-GAT-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3779GF-GAT-AX?
UPD70F3779GF-GAT-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3779GF-GAT-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 UPD70F3779GF-GAT-AX?
For technical support, including UPD70F3779GF-GAT-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3779GF-GAT-AX requirements.
6.How does Aetrix verify that UPD70F3779GF-GAT-AX is sourced from the original manufacturer or authorized distributors?
All UPD70F3779GF-GAT-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 UPD70F3779GF-GAT-AX meets industry standards.
7.What is the process for return or replacement of UPD70F3779GF-GAT-AX?
All UPD70F3779GF-GAT-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3779GF-GAT-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 UPD70F3779GF-GAT-AX part is unused and in its original packaging.
Return procedure for UPD70F3779GF-GAT-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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