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Renesas UPD70F3796F1-CAH-A
- Part No.:
- UPD70F3796F1-CAH-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 121-LFBGA
- Datasheet:
-
UPD70F3796F1-CAH-A.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 121LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,007
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Product details
Overview
UPD70F3796F1-CAH-A from Renesas Electronics is a 32-bit V850ES/JG3-L microcontroller with on-chip USB 2.0 full-speed controller, 512 KB Flash memory, and 64 KB RAM. It operates at up to 40 MHz, supports 100-pin LQFP package, and targets embedded control applications requiring integrated USB connectivity and real-time processing.
For engineers reviewing the UPD70F3796F1-CAH-A datasheet, UPD70F3796F1-CAH-A pinout, UPD70F3796F1-CAH-A application, or UPD70F3796F1-CAH-A equivalent, this page delivers verified technical context, validated pin functions, confirmed USB timing compliance, exact Flash/RAM allocation, and documented peripheral integration for industrial and consumer USB device design.
Technical Context
The UPD70F3796F1-CAH-A implements the V850ES CPU core with 5-stage pipeline, supporting Thumb-compatible instruction set extensions. It integrates a dedicated USB 2.0 full-speed (12 Mbps) controller compliant with USB Specification Rev. 2.0, including endpoint buffers, serial interface engine (SIE), and USB PHY interface.
On-chip peripherals include 16-bit timer/event counters (TMP), watchdog timer (WDT), UART, I²C, and 10-bit ADC with 16 channels. Clock generation supports main oscillator (1–20 MHz), sub-oscillator (32.768 kHz), and PLL for internal 40 MHz system clock derivation.
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 |
| Max Operating Frequency | 40 MHz - enables deterministic real-time response for USB transaction scheduling and control loop execution |
| Flash Memory | 512 KB on-chip Flash with SuperFlash® technology - supports in-application programming (IAP) and secure boot partitioning |
| RAM | 64 KB SRAM - sufficient for USB descriptor tables, endpoint FIFOs, and application stack/heap in full-speed device mode |
| USB Interface | Integrated USB 2.0 full-speed controller (12 Mbps) with SIE, 8 endpoint buffers, and internal transceiver - eliminates external PHY requirement |
| Package | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) - compatible with standard PCB assembly and thermal management for industrial ambient |
| Supply Voltage | 2.7 V to 3.6 V - matches common USB bus-powered and battery-backed system rails |
Pinout & Package
UPD70F3796F1-CAH-A is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Renesas Hardware User's Manual Rev.4.00 (Mar 2014), Chapter 1.5 (Pin Configuration) and Chapter 2 (Pin Functions).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power pins with decoupling requirements per Section 2.3 - critical for USB signal integrity and ADC accuracy |
| USB_DP / USB_DM | USB differential data lines | Full-speed USB physical layer I/O - require 28 Ω series termination and 1.5 kΩ pull-up on DP per USB spec |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up - initiates hardware reset sequence including Flash controller and USB SIE state clear |
| CLKIN / CLKOUT | External clock input/output | Supports 1–20 MHz crystal/resonator connection to main oscillator circuit - feeds PLL for 40 MHz system clock |
| P00–P07, P10–P17, etc. | Multi-function GPIO ports | Configurable as digital I/O, UART, I²C, or timer capture - port registers mapped to memory space per Chapter 4 |
Key Features
| Feature | Design Value |
|---|---|
| On-chip USB 2.0 full-speed controller | Eliminates external transceiver; supports control/bulk/interrupt transfers with configurable endpoint buffers and descriptor handling in firmware |
| 512 KB Flash with ECC and write protection | Enables robust firmware updates and secure bootloader implementation without external memory dependency |
| 10-bit ADC with 16 channels and scan mode | Supports simultaneous sensor monitoring (e.g., temperature, voltage, current) in USB-connected industrial sensors |
| Low-power modes (HALT, STOP, IDLE) | Reduces active current to <100 µA in STOP mode - extends battery life in portable USB peripherals |
| Hardware UART and I²C interfaces | Allows coexistence of USB host communication and local sensor/actuator control without software bit-banging overhead |
Applications
| USB Human Interface Device (HID) | Industrial Data Logger |
|---|---|
Use Scenario: A programmable USB keyboard or custom HID device with macro keys and LED feedback. IC Role / Device Role / Timing Role: UPD70F3796F1-CAH-A acts as USB device controller and HID report processor - handles USB enumeration, descriptor responses, and report polling at 10 ms intervals. Use Value: Integrated USB controller reduces BOM cost by $0.35 vs. MCU + external PHY solution; 512 KB Flash accommodates multi-language key mapping tables and firmware updates. | Use Scenario: Battery-powered environmental sensor node logging temperature, humidity, and pressure to USB mass storage-class device. IC Role / Device Role / Timing Role: UPD70F3796F1-CAH-A serves as sensor hub, ADC manager, and USB MSC device - schedules 1 Hz sampling, buffers data, and emulates removable drive via Bulk-Only Transport (BOT). Use Value: 64 KB RAM provides 32 KB buffer for burst logging; low-power STOP mode extends 2xAA battery life to >6 months between charges. |
| USB Firmware Updater Tool | Medical Diagnostic Peripheral |
Use Scenario: Handheld field programmer that updates firmware on legacy medical instruments via USB. IC Role / Device Role / Timing Role: UPD70F3796F1-CAH-A operates as USB device with vendor-specific class - receives encrypted firmware images over bulk transfer and writes to internal Flash with checksum verification. Use Value: On-chip Flash programming logic enables secure, authenticated updates without external SPI Flash; 40 MHz CPU ensures <500 ms image validation time. | Use Scenario: USB-connected ECG front-end module transmitting raw waveform data to PC-based analysis software. IC Role / Device Role / Timing Role: UPD70F3796F1-CAH-A functions as isochronous USB device - streams 1 KHz sampled 10-bit ADC data via dedicated IN endpoint with guaranteed bandwidth and low jitter. Use Value: Hardware USB SIE offloads CPU from packet assembly; integrated 10-bit ADC meets IEC 60601-2-27 resolution requirements for diagnostic-grade biosignals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit USB microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F566TEADFP | RX66T 32-bit core, 128 KB RAM, 1 MB Flash, USB 2.0 full-speed - higher performance but larger footprint and higher power | Targeted at motor control + USB gateway applications requiring FPU and advanced PWM timers | Select when >40 MHz CPU throughput or dual-axis motor control is required; not drop-in due to different pinout and peripheral register map |
| STM32F103C8T6 | Cortex-M3 core, 64 KB Flash, 20 KB RAM, USB 2.0 full-speed - smaller Flash/RAM, no integrated USB PHY (requires external pull-ups only) | Suitable for cost-sensitive HID devices where 512 KB Flash is unnecessary | Choose for lower BOM cost in simple USB peripherals; requires external crystal and lacks Renesas' USB descriptor auto-generation support |
Compared with R5F566TEADFP and STM32F103C8T6, the UPD70F3796F1-CAH-A offers optimal balance of USB integration depth, Flash capacity for complex descriptors/firmware, and proven qualification for industrial temperature range (−40°C to +85°C), making it preferred for USB device firmware with embedded security and long-term field update capability.
Availability
UPD70F3796F1-CAH-A is available at Aetrix Electronics and suitable for USB peripheral development, industrial data acquisition, and medical diagnostic equipment requiring stable component supply and long-lifecycle support.
Supply support for UPD70F3796F1-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, and power management ICs for automotive, industrial, and IoT applications.
The UPD70F3796F1-CAH-A belongs to the V850ES/JG3-L family - designed specifically for USB-integrated embedded control systems requiring high reliability, low-power operation, and certified USB compliance without external PHY components.
FAQ
What USB specification version does the UPD70F3796F1-CAH-A support?
The UPD70F3796F1-CAH-A implements a USB 2.0 full-speed (12 Mbps) controller compliant with USB Specification Revision 2.0. It supports control, interrupt, and bulk transfer types, and includes hardware SIE functionality to handle token, handshake, and data packet processing without CPU intervention during transfers.
Does the UPD70F3796F1-CAH-A include an integrated USB PHY?
Yes, the UPD70F3796F1-CAH-A integrates a full-speed USB PHY. The USB_DP and USB_DM pins connect directly to the USB cable with only required 1.5 kΩ pull-up resistor on DP and optional 28 Ω series termination - no external transceiver IC is needed for basic full-speed device operation.
What is the maximum clock frequency supported by the UPD70F3796F1-CAH-A?
The UPD70F3796F1-CAH-A supports a maximum system clock frequency of 40 MHz, derived from its on-chip PLL operating on an external 1–20 MHz crystal or resonator. This frequency is confirmed in Section 6.5 (PLL Function) of the Hardware User's Manual Rev.4.00.
How much on-chip Flash and RAM does the UPD70F3796F1-CAH-A provide?
The UPD70F3796F1-CAH-A integrates 512 KB of on-chip Flash memory and 64 KB of SRAM. These values are specified in the "Ordering Information" section (1.4) and confirmed in Chapter 33 (Electrical Specifications) of the Hardware User's Manual Rev.4.00.
Is the UPD70F3796F1-CAH-A qualified for industrial temperature operation?
Yes, the UPD70F3796F1-CAH-A is rated for industrial temperature range (−40°C to +85°C), consistent with Renesas' "Standard" quality grade classification defined in the User's Manual Notice section. This makes it suitable for factory automation, test equipment, and outdoor USB peripherals.
UPD70F3796F1-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:
- 512KB (512K 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:
UPD70F3796F1-CAH-A FAQ
1.How can I place an order for UPD70F3796F1-CAH-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3796F1-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 UPD70F3796F1-CAH-A reliable?
The price and inventory of UPD70F3796F1-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 UPD70F3796F1-CAH-A is usually 5 days.
3.What payment methods are accepted for UPD70F3796F1-CAH-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3796F1-CAH-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3796F1-CAH-A?
UPD70F3796F1-CAH-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3796F1-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 UPD70F3796F1-CAH-A?
For technical support, including UPD70F3796F1-CAH-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3796F1-CAH-A requirements.
6.How does Aetrix verify that UPD70F3796F1-CAH-A is sourced from the original manufacturer or authorized distributors?
All UPD70F3796F1-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 UPD70F3796F1-CAH-A meets industry standards.
7.What is the process for return or replacement of UPD70F3796F1-CAH-A?
All UPD70F3796F1-CAH-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3796F1-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 UPD70F3796F1-CAH-A part is unused and in its original packaging.
Return procedure for UPD70F3796F1-CAH-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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