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Renesas UPD70F3745GJ-GAE-AX
- Part No.:
- UPD70F3745GJ-GAE-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
UPD70F3745GJ-GAE-AX.pdf
- Description:
- IC MCU 32BIT 768KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,118
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Product details
Overview
UPD70F3745GJ-GAE-AX from Renesas Electronics is a 32-bit V850ES/JG3 microcontroller with 512 KB on-chip Flash, 48 KB RAM, and integrated peripherals including 16-bit timers (TMP/TMQ), UART, I²C, and CAN 2.0B controller. It operates at up to 40 MHz, supports 3.3 V supply, and targets real-time embedded control in industrial automation and automotive body electronics.
For engineers reviewing the UPD70F3745GJ-GAE-AX datasheet, UPD70F3745GJ-GAE-AX pinout, UPD70F3745GJ-GAE-AX application, or UPD70F3745GJ-GAE-AX equivalent, key selection criteria include its V850ES CPU core compliance, CAN 2.0B interface capability, Flash programming voltage range (2.7–3.6 V), and 100-pin LQFP package with dedicated debug pins (TCK/TDI/TDO/TMS).
Technical Context
The UPD70F3745GJ-GAE-AX implements the V850ES instruction set architecture with 32-bit data path and 32-bit address space, supporting both little-endian and big-endian operation modes. Its on-chip PLL enables clock multiplication from external crystal (1–8 MHz) to internal system clock up to 40 MHz, with programmable wait states for external memory access.
It integrates dual 16-bit timer/event counters (TMP and TMQ) with PWM, pulse width measurement, and one-shot output modes; a full CAN 2.0B controller with 32 message objects and FIFO support; and three serial interfaces - two UARTs and one I²C - all with independent baud rate generators and interrupt-driven operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | V850ES 32-bit RISC core, 40 MHz max frequency, 1.2 DMIPS/MHz performance |
| Memory | 512 KB on-chip Flash (programmable at 2.7–3.6 V), 48 KB SRAM, no external bus required for basic operation |
| CAN Interface | One CAN 2.0B controller with 32 message objects, programmable bit timing, and automatic retransmission |
| Timers | Dual 16-bit TMP/TMQ units supporting PWM, event counting, pulse width measurement, and interval timing |
| I/O Pins | 82 general-purpose I/O pins with configurable pull-up/down, CMOS input thresholds, and programmable drive strength |
| Supply Voltage | 3.3 V ±10% operation; 2.7–3.6 V Flash programming range; separate VDDIO and VDD domains |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, JEDEC standard footprint |
Pinout & Package
UPD70F3745GJ-GAE-AX is housed in a 100-pin LQFP package with exposed thermal pad (GND-connected). Pin layout follows Renesas' standard V850ES/JG3 pin configuration: Port 0–9 and special function pins (CLK, RESET, CANH/CANL, TDI/TDO/TCK/TMS) are distributed across four sides with dedicated power/ground pairs per quadrant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as GPIO or alternate functions (UART0 TX/RX, I²C SCL/SDA) |
| P10–P17 | Port 1 bidirectional I/O | Supports CAN0 TX/RX, external interrupt inputs, and timer capture inputs |
| P40–P47 | Port 4 bidirectional I/O | Includes UART1 TX/RX, SPI clock/data, and PWM output channels |
| CLK | External clock input | Accepts 1–8 MHz crystal or external clock signal for PLL-based system clock generation |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers hardware initialization and register clearing |
| CANH / CANL | CAN physical layer differential pair | Direct connection to ISO 11898-compliant transceiver; supports 1 Mbit/s at 40 m |
| TCK / TDI / TDO / TMS | JTAG debug interface | Enables in-circuit debugging, flash programming, and boundary scan via standard IEEE 1149.1 interface |
Key Features
| Feature | Design Value |
|---|---|
| V850ES CPU Core | 32-bit RISC architecture with 32 general-purpose registers, 16-bit instruction encoding for high code density |
| On-chip Flash Memory | 512 KB with sector erase, page write, and read-while-write capability for real-time firmware updates |
| CAN 2.0B Controller | Hardware-accelerated message filtering, transmit/receive FIFOs, and error counter management without CPU overhead |
| Low-power Modes | Four power-saving modes (HALT, STOP, SLEEP, IDLE) with wake-up via CAN, UART, or external interrupt |
| Peripheral Clock Control | Individual clock gating per peripheral unit to reduce dynamic power consumption during idle operation |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit |
|---|---|
Use Scenario: Central I/O controller in modular programmable logic controllers handling discrete sensor inputs and relay outputs. IC Role / Device Role / Timing Role: Main system controller executing ladder logic, managing CAN-based fieldbus communication, and driving real-time I/O scanning at ≤10 ms cycle time. Use Value: Integrated CAN 2.0B and 82 GPIO pins eliminate external bus interface ICs; 40 MHz CPU ensures deterministic response under 100% load. | Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting in mid-tier passenger vehicles. IC Role / Device Role / Timing Role: Dedicated body ECU managing LIN slave coordination, PWM motor control, and diagnostic CAN messaging. Use Value: On-chip 16-bit timers with PWM output and dead-time insertion enable direct motor driver control; Flash endurance supports 100k+ reprogramming cycles for OTA updates. |
| Smart Energy Metering Gateway | Factory Automation HMI Controller |
Use Scenario: Communication gateway aggregating data from RS-485-connected smart meters and forwarding via Ethernet or cellular link. IC Role / Device Role / Timing Role: Protocol translation engine running Modbus RTU-to-TCP conversion and local data buffering with timestamped logging. Use Value: Dual UARTs with independent baud rate generators allow simultaneous RS-485 master/slave operation; 48 KB RAM accommodates multi-message buffers and TLS stack. | Use Scenario: Local operator interface panel with touch screen, LED indicators, and push-button inputs in CNC machine tool control cabinets. IC Role / Device Role / Timing Role: Real-time UI processor rendering status graphics, polling safety interlocks, and triggering emergency stop sequences within <50 µs latency. Use Value: V850ES interrupt latency of ≤1 µs guarantees hard real-time response; GPIO drive strength configurable for direct LED/current sink control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F566TEADFP | RX66T core (32-bit), 128 KB Flash, 20 KB RAM, no CAN; includes FPU and advanced PWM timers | Better suited for motor control with encoder feedback; lacks native CAN for vehicle network integration | Select if FPU-based math-intensive algorithms dominate; avoid when CAN bus connectivity is mandatory |
| UPD70F3739GJ-GAE-AX | Same V850ES/JG3 family, 256 KB Flash, 32 KB RAM, identical pinout and peripheral set | Lower memory variant for cost-sensitive designs where firmware size ≤256 KB | Drop-in replacement with reduced Flash/RAM; verify linker script and memory map alignment |
Compared with UPD70F3745GJ-GAE-AX, R5F566TEADFP offers higher computational throughput but requires external CAN transceiver and additional glue logic; UPD70F3739GJ-GAE-AX provides identical functionality at lower memory capacity, enabling BOM cost reduction without layout changes.
Availability
UPD70F3745GJ-GAE-AX is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and smart energy metering gateways requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for UPD70F3745GJ-GAE-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 product line delivers 32-bit real-time MCUs optimized for deterministic control, CAN-based networking, and low-power operation in harsh environments - targeting automotive body electronics and factory automation.
FAQ
What is the maximum operating frequency of the UPD70F3745GJ-GAE-AX?
The UPD70F3745GJ-GAE-AX supports a maximum system clock frequency of 40 MHz, achieved using its on-chip PLL with an external crystal (1–8 MHz) or clock source. This frequency is guaranteed across the full industrial temperature range (−40°C to +85°C) and 3.3 V ±10% supply voltage, enabling deterministic real-time execution for time-critical control loops.
Does the UPD70F3745GJ-GAE-AX include a CAN controller?
Yes, the UPD70F3745GJ-GAE-AX integrates a single CAN 2.0B-compliant controller supporting bit rates up to 1 Mbit/s. It features 32 message objects, programmable acceptance filtering, automatic retransmission, and error frame detection - all implemented in hardware to minimize CPU intervention during CAN communication.
What debug interface does the UPD70F3745GJ-GAE-AX support?
The UPD70F3745GJ-GAE-AX supports IEEE 1149.1 JTAG debugging via dedicated TCK/TDI/TDO/TMS pins. This enables full in-circuit emulation, flash programming, and real-time register inspection using Renesas' E2 emulator or third-party tools compliant with the V850ES debug specification.
Is the UPD70F3745GJ-GAE-AX pin-compatible with other V850ES/JG3 microcontrollers?
Yes, the UPD70F3745GJ-GAE-AX shares the same 100-pin LQFP package and pin assignment with other members of the V850ES/JG3 family, including UPD70F3739GJ-GAE-AX and UPD70F3740GJ-GAE-AX. This allows hardware reuse across memory variants while maintaining identical peripheral pin mappings and power sequencing requirements.
What is the Flash memory endurance and data retention specification for the UPD70F3745GJ-GAE-AX?
The UPD70F3745GJ-GAE-AX specifies 100,000 write/erase cycles for its 512 KB on-chip Flash memory and guarantees data retention of 20 years at 85°C or 40 years at 25°C. These values are measured per sector and validated per Renesas' reliability testing standards for industrial-grade microcontrollers.
UPD70F3745GJ-GAE-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- V850ES/Jx3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- V850ES
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- CSI, EBI/EMI, I2C, UART/USART
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 128
- Program Memory Size:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 60K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.85V ~ 3.6V
- Data Converters:
- A/D 16x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD70F3745GJ-GAE-AX FAQ
1.How can I place an order for UPD70F3745GJ-GAE-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3745GJ-GAE-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 UPD70F3745GJ-GAE-AX reliable?
The price and inventory of UPD70F3745GJ-GAE-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD70F3745GJ-GAE-AX is usually 5 days.
3.What payment methods are accepted for UPD70F3745GJ-GAE-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3745GJ-GAE-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3745GJ-GAE-AX?
UPD70F3745GJ-GAE-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3745GJ-GAE-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 UPD70F3745GJ-GAE-AX?
For technical support, including UPD70F3745GJ-GAE-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3745GJ-GAE-AX requirements.
6.How does Aetrix verify that UPD70F3745GJ-GAE-AX is sourced from the original manufacturer or authorized distributors?
All UPD70F3745GJ-GAE-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 UPD70F3745GJ-GAE-AX meets industry standards.
7.What is the process for return or replacement of UPD70F3745GJ-GAE-AX?
All UPD70F3745GJ-GAE-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3745GJ-GAE-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 UPD70F3745GJ-GAE-AX part is unused and in its original packaging.
Return procedure for UPD70F3745GJ-GAE-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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