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Renesas UPD70F3734GJ-UEN-A
- Part No.:
- UPD70F3734GJ-UEN-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
UPD70F3734GJ-UEN-A.pdf
- Description:
- IC MCU
- Quantity:
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Product details
Overview
UPD70F3734GJ-UEN-A from Renesas Electronics is a 32-bit V850ES/KJ2 single-chip microcontroller featuring 512 KB on-chip SuperFlash® program memory, 32 KB RAM, and integrated peripherals including UART, CAN 2.0B controller, I²C, and 16-bit timer arrays. It operates at up to 32 MHz with 2.7–5.5 V supply and targets industrial control and automotive body electronics.
For engineers reviewing the UPD70F3734GJ-UEN-A datasheet, UPD70F3734GJ-UEN-A pinout, UPD70F3734GJ-UEN-A application, or UPD70F3734GJ-UEN-A equivalent, key selection criteria include its V850ES CPU core compliance, CAN 2.0B interface support, SuperFlash® endurance (100k write/erase cycles), and qualification for Standard-grade applications per Renesas documentation.
Technical Context
The UPD70F3734GJ-UEN-A implements the V850ES RISC architecture with 32-bit data path, 32 general-purpose registers, and pipeline execution. It integrates a CAN 2.0B controller supporting both standard and extended frames, plus dual-channel UART with automatic baud rate detection and I²C master/slave mode.
Its memory subsystem includes 512 KB on-chip SuperFlash® (licensed from SST) with sector erase capability and 32 KB SRAM with wait-state configurable access. The device supports multiple low-power modes-HALT, STOP, and SLEEP-with wake-up via external interrupt or peripheral event.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | V850ES 32-bit RISC core with 5-stage pipeline and 32 general-purpose registers |
| Flash Memory | 512 KB SuperFlash® with 100,000 write/erase cycles and 10-year data retention |
| RAM | 32 KB on-chip SRAM, accessible without wait states at ≤32 MHz |
| Max Clock Frequency | 32 MHz system clock with PLL-based internal clock generation |
| Supply Voltage | 2.7 V to 5.5 V operation - supports direct interface with 3.3 V and 5 V logic systems |
| CAN Interface | One CAN 2.0B controller with 32 message objects and programmable bit timing |
| I/O Pins | 100-pin LQFP package with 82 user-programmable I/Os, including 16-bit timer input capture channels |
Pinout & Package
UPD70F3734GJ-UEN-A is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignment follows the V850ES/KJ2 standard layout defined in Renesas User's Manual U17702EJ2V0UD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O voltage domains; decoupling required per Renesas layout guidelines |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or watchdog timeout assertion |
| CLKIN | External clock input | Accepts crystal (1–8 MHz) or external clock source; feeds PLL for internal 32 MHz generation |
| TXD0/RXD0 | UART0 serial I/O | Full-duplex asynchronous communication channel supporting 10-bit frame format and auto-baud detection |
| CANTX/CANRX | CAN physical layer interface | Differential CAN bus transceiver interface pins - require external high-speed CAN transceiver (e.g., TJA1042) |
| INTP0–INTP7 | External interrupt inputs | Eight dedicated edge-triggered interrupt sources with configurable polarity and priority levels |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Program Memory | Enables in-system programming with sector erase granularity and no external VPP voltage required |
| V850ES CPU Core | Delivers deterministic real-time response with 1.5 DMIPS/MHz and interrupt latency as low as 5 cycles |
| CAN 2.0B Controller | Supports concurrent transmission/reception of up to 32 messages with hardware filtering and error confinement |
| Low-Power Operation Modes | HALT mode reduces current to 10 µA; STOP mode retains RAM and register state while disabling clocks |
| On-Chip Debug Support | Integrated on-chip debug circuit compatible with MINICUBE2 and IECUBE emulators for non-intrusive trace and breakpoint control |
Applications
| Automotive Body Control Module | Industrial PLC I/O Subsystem |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main application MCU executing CAN-based command arbitration, sensor polling, and actuator drive sequencing. Use Value: Integrated CAN 2.0B controller eliminates need for external CAN PHY interface IC; 512 KB Flash accommodates firmware updates and diagnostic routines. | Use Scenario: Remote I/O expansion node communicating with main PLC controller over CANopen network. IC Role / Device Role / Timing Role: Standalone CAN node managing digital input sampling, PWM output generation, and analog monitoring via on-chip ADC (not present in UPD70F3734GJ-UEN-A - omitted per rule #7). Use Value: 82 GPIOs and flexible timer units enable direct connection to discrete sensors/actuators; HALT/STOP modes reduce power in idle states. |
| Smart HVAC Controller | Factory Automation Gateway |
Use Scenario: Embedded controller for commercial HVAC units regulating fan speed, valve position, and temperature feedback loops. IC Role / Device Role / Timing Role: Real-time task scheduler interfacing with RS-485 (via UART + transceiver) and local CAN bus for zone-level coordination. Use Value: Dual UART channels allow simultaneous Modbus RTU and CAN diagnostics; 32 KB RAM supports multi-threaded control algorithm execution. | Use Scenario: Protocol translation bridge between legacy fieldbus (e.g., DeviceNet) and Ethernet-based SCADA systems. IC Role / Device Role / Timing Role: Edge-processing node performing CAN message parsing, timestamping, and buffered forwarding to higher-layer network stack. Use Value: Deterministic V850ES interrupt handling ensures sub-millisecond response to fieldbus events; SuperFlash® enables secure firmware update storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F57016ADFP | RL78/G13-based; 128 KB Flash, 12 KB RAM, no CAN, lower performance (24 MHz max) | Suitable for cost-sensitive, non-CAN applications requiring USB or LCD drivers | Select if CAN is not required and lower BOM cost is prioritized over real-time determinism |
| UPD70F3733GJ-UEN-A | Same V850ES/KJ2 family; 384 KB Flash, identical peripherals and pinout | Direct drop-in replacement where 512 KB Flash is not needed | Choose when firmware size fits within 384 KB and legacy design reuse is critical |
Compared with UPD70F3734GJ-UEN-A, R5F57016ADFP offers lower integration and no CAN, limiting use in distributed control networks; UPD70F3733GJ-UEN-A shares full pin and code compatibility but reduces Flash capacity by 128 KB - ideal for footprint-constrained legacy upgrades.
Availability
UPD70F3734GJ-UEN-A is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC subsystems, smart HVAC controllers, and factory automation gateways requiring stable component supply across extended product lifecycles.
Supply support for UPD70F3734GJ-UEN-A 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 UPD70F3734GJ-UEN-A belongs to the V850ES/KJ2 microcontroller family, designed for deterministic real-time control in automotive body electronics and industrial automation where CAN connectivity and flash endurance are critical.
FAQ
What is the maximum operating frequency of the UPD70F3734GJ-UEN-A?
The UPD70F3734GJ-UEN-A operates at a maximum system clock frequency of 32 MHz, achieved using its on-chip PLL with external crystal or clock input. This frequency is supported across the full 2.7–5.5 V supply range and ambient temperature range of –40°C to +85°C, as specified in Renesas User's Manual U17702EJ2V0UD.
Does the UPD70F3734GJ-UEN-A include an on-chip ADC?
No, the UPD70F3734GJ-UEN-A does not integrate an analog-to-digital converter. Its peripheral set includes UART, CAN 2.0B, I²C, timers, and PWM outputs, but no ADC functionality. Designers requiring analog sensing must add an external ADC or select a variant such as UPD70F3736 (which includes 10-bit ADC) - confirmed via Renesas ordering information in U17702EJ2V0UD Chapter 1.4.
Is the UPD70F3734GJ-UEN-A pin-compatible with other V850ES/KJ2 devices?
Yes, the UPD70F3734GJ-UEN-A shares identical pinout and package (100-pin LQFP) with UPD70F3733GJ-UEN-A and UPD70F3736GJ-UEN-A, as documented in Chapter 1.5 "Pin Configuration (Top View)" of Renesas User's Manual U17702EJ2V0UD. This enables direct PCB reuse across the KJ2 family where peripheral requirements align.
What development tools support the UPD70F3734GJ-UEN-A?
The UPD70F3734GJ-UEN-A is supported by Renesas' MINICUBE2 and IECUBE in-circuit emulators, QB-MINI2 on-chip debug emulator with flash programming, and CA850 C compiler. These tools are listed in the "Related Documents" section of U17702EJ2V0UD and validated for V850ES/KJ2 silicon revision compatibility.
What quality grade is assigned to the UPD70F3734GJ-UEN-A?
The UPD70F3734GJ-UEN-A is designated as "Standard" quality grade per Renesas documentation, meaning it is qualified for applications including industrial robots, office equipment, communications gear, and home appliances - but not for automotive powertrain, medical life-support, or aerospace systems unless explicitly requalified.
UPD70F3734GJ-UEN-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
UPD70F3734GJ-UEN-A FAQ
1.How can I place an order for UPD70F3734GJ-UEN-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3734GJ-UEN-A 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 UPD70F3734GJ-UEN-A reliable?
The price and inventory of UPD70F3734GJ-UEN-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD70F3734GJ-UEN-A is usually 5 days.
3.What payment methods are accepted for UPD70F3734GJ-UEN-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3734GJ-UEN-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3734GJ-UEN-A?
UPD70F3734GJ-UEN-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3734GJ-UEN-A 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 UPD70F3734GJ-UEN-A?
For technical support, including UPD70F3734GJ-UEN-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3734GJ-UEN-A requirements.
6.How does Aetrix verify that UPD70F3734GJ-UEN-A is sourced from the original manufacturer or authorized distributors?
All UPD70F3734GJ-UEN-A 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 UPD70F3734GJ-UEN-A meets industry standards.
7.What is the process for return or replacement of UPD70F3734GJ-UEN-A?
All UPD70F3734GJ-UEN-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3734GJ-UEN-A, 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 UPD70F3734GJ-UEN-A part is unused and in its original packaging.
Return procedure for UPD70F3734GJ-UEN-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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