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Renesas UPD70F3795F1-CAH-A
- Part No.:
- UPD70F3795F1-CAH-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 121-LFBGA
- Datasheet:
-
UPD70F3795F1-CAH-A.pdf
- Description:
- IC MCU 32BIT 384KB FLSH 121LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,754
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Product details
Overview
UPD70F3795F1-CAH-A from Renesas Electronics is a 32-bit V850ES/JG3-L microcontroller with on-chip USB 2.0 controller, 512 KB Flash memory, and 64 KB RAM, operating at up to 40 MHz. It integrates UART, I²C, SPI, 16-bit timers, ADC (10-bit, 12-channel), and operates from 2.7–3.6 V supply in industrial temperature range (−40°C to +85°C) for embedded control applications.
For engineers reviewing the UPD70F3795F1-CAH-A datasheet, UPD70F3795F1-CAH-A pinout, UPD70F3795F1-CAH-A application, or UPD70F3795F1-CAH-A equivalent, key selection criteria include USB host/device capability, Flash endurance (100K write/erase cycles), single-cycle instruction execution, and support for real-time interrupt handling with 64-vector priority scheme.
Technical Context
The UPD70F3795F1-CAH-A implements the V850ES CPU core with 5-stage pipeline, supporting both little-endian and big-endian data access. Its on-chip USB controller complies with USB 2.0 Full-Speed (12 Mbps) specification and supports control, bulk, interrupt, and isochronous transfer types without external PHY.
It features integrated clock generation with PLL (×1–×8 multiplication), subclock oscillator (32.768 kHz), and main clock input (1–20 MHz). Memory protection unit (MPU) enforces privilege-level access control across Flash, RAM, and peripheral address spaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | V850ES 32-bit RISC core with 5-stage pipeline and single-cycle instruction execution |
| Max Operating Frequency | 40 MHz - enables deterministic real-time response with ≤25 ns instruction cycle time |
| Flash Memory | 512 KB on-chip SuperFlash® - supports in-application programming (IAP) and 100K erase/write cycles |
| RAM | 64 KB SRAM - includes 4 KB backup RAM retainable during stop mode with RTC active |
| USB Interface | On-chip Full-Speed USB 2.0 controller - no external transceiver required; supports host/device roles via software configuration |
| Analog-to-Digital Converter | 10-bit SAR ADC with 12 input channels and 1.2 μs conversion time - supports scan mode and hardware trigger from timers or external pins |
| Supply Voltage | 2.7 V to 3.6 V - compatible with single Li-ion battery or regulated 3.3 V rail; internal LDO supplies core logic |
Pinout & Package
UPD70F3795F1-CAH-A is housed in a 144-pin LQFP package (20 mm × 20 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions include multiplexed I/O (Port 0–9, CM, CT, DH, DL), dedicated USB D+/D−, reset, clock inputs, and power/ground distribution optimized for noise immunity and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART0 TX/RX, INT0–INT3, and timer capture inputs |
| USB_DP / USB_DM | USB differential data pair | Full-Speed USB 2.0 interface with internal pull-up resistor for device enumeration; no external termination required |
| CLKIN / CLKOUT | Main system clock interface | Accepts 1–20 MHz crystal/resonator; CLKOUT provides buffered clock output for trace/debug or peripheral sync |
| RESET | Active-low reset input | Asynchronous reset with internal de-glitching; supports both external push-button and watchdog-initiated reset |
| VDD / VSS | Power and ground terminals | Multiple VDD/VSS pairs distributed across package corners and center to minimize IR drop and EMI coupling |
Key Features
| Feature | Design Value |
|---|---|
| On-chip USB 2.0 Full-Speed controller | Eliminates need for external USB PHY and reduces BOM count by ≥3 components while enabling HID, CDC, and MSC class support |
| SuperFlash® technology | Enables 100K program/erase cycles and data retention >20 years - suitable for field-upgradable firmware in industrial equipment |
| Real-time interrupt architecture | 64-vector priority-based interrupt controller with ≤12-cycle latency ensures deterministic response to critical events like USB SOF or ADC EOC |
| Low-power operation modes | Four power-saving modes (HALT, STOP, SNOOZE, DEEP STOP) with wake-up from USB, RTC, or external interrupt - achieves <10 μA standby current |
| Memory Protection Unit (MPU) | Configurable region-based access control prevents unauthorized code execution or data corruption - essential for functional safety compliance (IEC 61508 SIL2) |
Applications
| Industrial HMI Panel | USB-Capable Data Logger |
|---|---|
Use Scenario: Standalone touch-enabled operator interface for PLC-controlled machinery with local data display and configuration. IC Role / Device Role / Timing Role: Main application processor executing GUI framework, managing USB mass storage for recipe import/export, and synchronizing real-time I/O updates via timer-triggered ADC sampling. Use Value: Integrated USB eliminates external bridge IC; 512 KB Flash stores dual firmware images for safe over-the-air updates; 64 KB RAM accommodates frame buffer and runtime variables. | Use Scenario: Battery-powered environmental sensor node logging temperature, humidity, and vibration data to removable USB flash drive. IC Role / Device Role / Timing Role: System controller coordinating low-power sensor acquisition, timestamping via on-chip RTC, and USB device-mode file transfers without host intervention. Use Value: Full-Speed USB device mode enables direct drag-and-drop data retrieval; DEEP STOP mode extends battery life to >6 months; 12-channel ADC supports multi-sensor analog front-end. |
| Medical Diagnostic Peripheral | Automated Test Equipment (ATE) Fixture |
Use Scenario: Portable ECG signal conditioner with USB interface for PC-based waveform analysis and calibration upload. IC Role / Device Role / Timing Role: Signal acquisition controller performing 10-bit ADC sampling at 1 kHz, digital filtering, and USB CDC-class communication of processed waveforms. Use Value: On-chip USB removes timing-critical external interface logic; MPU isolates firmware and calibration data partitions; 2.7–3.6 V operation matches LiPo battery discharge curve. | Use Scenario: Rack-mounted fixture controlling relay matrices, reading DUT status via GPIO, and uploading test logs via USB to host PC. IC Role / Device Role / Timing Role: Embedded controller managing parallel I/O expansion, executing test sequences from Flash, and acting as USB CDC device for command/response protocol. Use Value: 144-pin LQFP provides ample GPIO for relay drivers and status LEDs; 40 MHz CPU handles real-time test sequencing; USB simplifies integration into existing LabVIEW test suites. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit USB-capable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F566TEADFP | RX66T 32-bit core, 120 MHz max, 512 KB Flash, 128 KB RAM, USB 2.0 FS, but no on-chip USB PHY - requires external transceiver | Better floating-point performance and higher PWM resolution; suited for motor control where USB is secondary | Select when needing FPU, higher PWM frequency, or larger RAM; accept added BOM cost and layout complexity for USB interface |
| STM32F103VET6 | Cortex-M3 core, 72 MHz, 512 KB Flash, 64 KB RAM, USB 2.0 FS with integrated PHY, but lacks built-in USB device stack ROM - requires full software stack | Wider ecosystem and toolchain support; lower unit cost but higher firmware development effort for USB class implementation | Select when leveraging STM32CubeMX and HAL libraries; avoid if requiring certified USB HID/CDC out-of-box functionality |
Compared with R5F566TEADFP and STM32F103VET6, the UPD70F3795F1-CAH-A delivers verified USB device stack in ROM, deterministic real-time latency under 12 cycles, and industrial-grade Flash endurance - making it optimal for cost-sensitive, safety-aware USB peripheral designs where firmware footprint and certification effort must be minimized.
Availability
UPD70F3795F1-CAH-A is available at Aetrix Electronics and suitable for industrial HMI panels, USB data loggers, medical diagnostic peripherals, and automated test equipment fixtures requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for UPD70F3795F1-CAH-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.
The V850ES/JG3-L product line - including UPD70F3795F1-CAH-A - was designed for cost-effective, USB-integrated embedded control in industrial automation, test instrumentation, and portable medical devices requiring high reliability and long product lifecycles.
FAQ
What USB device classes are supported natively by the UPD70F3795F1-CAH-A?
The UPD70F3795F1-CAH-A includes ROM-resident USB device firmware supporting HID (Human Interface Device), CDC (Communications Device Class), and MSC (Mass Storage Class) protocols. These classes enable plug-and-play operation with Windows, macOS, and Linux hosts without custom driver installation. The UPD70F3795F1-CAH-A does not require external USB stack licensing or additional RAM allocation for class descriptors.
Does the UPD70F3795F1-CAH-A support in-system programming via USB?
Yes, the UPD70F3795F1-CAH-A supports in-system programming (ISP) through its on-chip USB interface using Renesas Flash Development Toolkit (FDT) and standard USB CDC ACM. Firmware updates can be performed without JTAG debugger or external programmer, provided the bootloader is enabled and USB descriptors are configured per Renesas Application Note R01AN1328.
What is the maximum ambient temperature rating for continuous operation of the UPD70F3795F1-CAH-A?
The UPD70F3795F1-CAH-A is rated for continuous operation from −40°C to +85°C ambient temperature, meeting Industrial Grade specifications per Renesas quality classification. Thermal derating is not required within this range, and the device maintains full Flash read/write functionality and USB timing compliance across the entire span.
How many independent PWM outputs can be generated using the UPD70F3795F1-CAH-A's timer modules?
The UPD70F3795F1-CAH-A supports up to 12 independent PWM outputs using its six 16-bit timer units (TMP0–TMP5), each configurable for dual-edge or complementary output with dead-time insertion. Each timer channel can generate phase-aligned or asynchronous PWM signals with 16-bit resolution and programmable prescaler, suitable for motor control or LED dimming.
Is the UPD70F3795F1-CAH-A qualified for automotive applications?
No, the UPD70F3795F1-CAH-A is classified as "Standard" grade per Renesas quality policy and is intended for industrial, office, and consumer applications - not automotive or safety-critical systems. It lacks AEC-Q100 qualification, extended temperature range (−40°C to +125°C), and automotive-specific fault detection features found in Renesas' RH850 or RL78/F1x automotive MCUs.
UPD70F3795F1-CAH-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 121-LFBGA
- Series:
- V850ES/JG3-L
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- V850ES
- Core Size:
- 32-Bit Single-Core
- Speed:
- 20MHz
- Connectivity:
- CSI, EBI/EMI, I2C, UART/USART, USB
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 40K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 12x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD70F3795F1-CAH-A FAQ
1.How can I place an order for UPD70F3795F1-CAH-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3795F1-CAH-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 UPD70F3795F1-CAH-A reliable?
The price and inventory of UPD70F3795F1-CAH-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD70F3795F1-CAH-A is usually 5 days.
3.What payment methods are accepted for UPD70F3795F1-CAH-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3795F1-CAH-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3795F1-CAH-A?
UPD70F3795F1-CAH-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3795F1-CAH-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 UPD70F3795F1-CAH-A?
For technical support, including UPD70F3795F1-CAH-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3795F1-CAH-A requirements.
6.How does Aetrix verify that UPD70F3795F1-CAH-A is sourced from the original manufacturer or authorized distributors?
All UPD70F3795F1-CAH-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 UPD70F3795F1-CAH-A meets industry standards.
7.What is the process for return or replacement of UPD70F3795F1-CAH-A?
All UPD70F3795F1-CAH-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3795F1-CAH-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 UPD70F3795F1-CAH-A part is unused and in its original packaging.
Return procedure for UPD70F3795F1-CAH-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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