Renesas UPD70F3822GB-GAH-AX
- Part No.:
- UPD70F3822GB-GAH-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
UPD70F3822GB-GAH-AX.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,713
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Product details
Overview
UPD70F3822GB-GAH-AX from Renesas Electronics is a 32-bit V850ES/JG3-H microcontroller with 512 KB on-chip Flash, 64 KB RAM, and integrated 16-bit timer/event counters, UART, I²C, and CAN 2.0B controller - used in industrial motor control and factory automation systems requiring deterministic real-time response.
For engineers reviewing the UPD70F3822GB-GAH-AX datasheet, UPD70F3822GB-GAH-AX pinout, UPD70F3822GB-GAH-AX application, or UPD70F3822GB-GAH-AX equivalent, this page delivers verified package mapping (LQFP-100), confirmed CAN interface support, Flash endurance (100k write/erase cycles), operating voltage (2.7–5.5 V), and thermal performance (−40 to +85 °C) for production-grade embedded design validation.
Technical Context
The UPD70F3822GB-GAH-AX implements the V850ES CPU core with 5-stage pipeline, supporting 32-bit integer arithmetic and bit manipulation instructions optimized for control-oriented firmware. It integrates a programmable PLL with 1–64× multiplication factor and supports multiple clock sources including external crystal (1–20 MHz), ceramic resonator, or internal RC oscillator.
Its peripheral set includes two independent CAN controllers compliant with ISO 11898-1:2003, each with 32 message objects and configurable FIFO mode; dual 16-bit TAA timers with input capture, output compare, and PWM generation; and a 12-channel 10-bit ADC with conversion time of 1.2 μs per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | V850ES 32-bit RISC core with 5-stage pipeline and 1.2 DMIPS/MHz performance |
| Flash Memory | 512 KB on-chip Flash with ECC protection and 100k write/erase endurance |
| RAM | 64 KB SRAM with parity checking and standby retention capability |
| Operating Voltage | 2.7 V to 5.5 V - enables direct interface with 3.3 V and 5 V logic without level shifters |
| Temperature Range | −40 °C to +85 °C - qualified for industrial environment deployment |
| CAN Interface | Dual CAN 2.0B controllers with hardware message filtering and automatic retransmission |
| ADC | 12-channel 10-bit SAR ADC with 1.2 μs conversion time and software/hardware trigger support |
Pinout & Package
LQFP-100 (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.
| 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 and CAN0 TX/RX |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs (INTP00–INTP07) and timer input capture channels |
| P20–P27 | Port 2 bidirectional I/O | Includes CAN1 TX/RX, I²C SCL/SDA, and ADC input channels AN0–AN7 |
| P30–P37 | Port 3 bidirectional I/O | Provides TAA0/TAA1 timer outputs, PWM signals, and external bus interface signals |
| VDD, VSS | Power supply pins | Separate analog/digital power domains with dedicated AVDD/AVSS for ADC noise immunity |
| RESET | Active-low reset input | Accepts external reset pulse ≥100 ns; internal POR circuit ensures reliable startup at power-on |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0B controllers | Independent message RAM (32 objects each), hardware acceptance filtering, and error confinement for robust fieldbus communication |
| Programmable PLL | Configurable multiplication factor (1–64×) with fine-grained frequency tuning for precise system clock derivation |
| On-chip debug interface | Single-wire debug (SWD) support via dedicated pins - enables non-intrusive real-time tracing and breakpoint debugging |
| Flash security lock | Read-out protection enabled by fuse bits - prevents unauthorized firmware extraction during field operation |
| Low-power modes | Four operational states (RUN, STOP, SNOOZE, HALT) with sub-μA current draw in HALT mode and fast wake-up (<10 μs) |
Applications
| Industrial Motor Control | Factory Automation PLC |
|---|---|
Use Scenario: Closed-loop speed and position control of 3-phase BLDC motors using space-vector PWM and encoder feedback. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM waveform generation, and CAN-based command/response messaging. Use Value: Deterministic interrupt latency (<1 μs) and dual CAN interfaces enable synchronized multi-axis motion control across distributed drives. | Use Scenario: Modular I/O expansion unit communicating with central PLC over CANopen network. IC Role / Device Role / Timing Role: Protocol stack processing, digital I/O scanning, and cyclic data exchange with master node. Use Value: Integrated CAN controllers with hardware message buffering reduce CPU load by >40% versus software-managed CAN stacks. |
| Building Energy Management | Railway Signaling Interface |
Use Scenario: HVAC controller managing chillers, VAV boxes, and damper actuators via BACnet MS/TP over RS-485. IC Role / Device Role / Timing Role: UART-driven serial protocol handling, analog sensor acquisition (temperature/humidity), and local logic decision engine. Use Value: 10-bit ADC with hardware averaging and built-in temperature sensor enable accurate environmental monitoring without external components. | Use Scenario: Interlocking subsystem interface converting legacy relay logic signals to standardized IEC 62280-compliant CAN messages. IC Role / Device Role / Timing Role: Safety-critical signal conditioning, watchdog supervision, and fault-tolerant CAN transmission. Use Value: Flash ECC and RAM parity detection meet SIL2 requirements for signaling integrity under EMI-prone rail environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F566TEADFP | RX66T core (48 MHz max), 512 KB Flash, no on-chip CAN transceiver drivers | Requires external CAN PHY; higher code density but lacks V850ES instruction-level determinism | Preferred when migrating to newer RX architecture with toolchain continuity |
| UPD70F3766GC-UEU-AX | V850ES/JH3-H variant, 384 KB Flash, same LQFP-100 package, adds bus hold function | Compatible pinout and peripheral register map; differs in memory size and bus timing behavior | Drop-in replacement where reduced Flash capacity is acceptable and bus hold is required |
Compared with UPD70F3822GB-GAH-AX, R5F566TEADFP offers higher clock speed and modern peripherals but requires CAN PHY redesign, while UPD70F3766GC-UEU-AX provides identical packaging and instruction compatibility with minor memory and timing trade-offs.
Availability
UPD70F3822GB-GAH-AX is available at Aetrix Electronics and suitable for industrial motor control, factory automation PLCs, and building energy management systems requiring stable component supply across extended product lifecycles.
Supply support for UPD70F3822GB-GAH-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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The UPD70F3822GB-GAH-AX belongs to the V850ES/JG3-H microcontroller family, designed specifically for deterministic real-time control in harsh industrial environments with emphasis on CAN-based distributed systems and motor drive applications.
FAQ
What is the maximum operating frequency of the UPD70F3822GB-GAH-AX?
The UPD70F3822GB-GAH-AX operates at up to 32 MHz using its internal PLL with external crystal input (1–20 MHz). When configured with a 20 MHz crystal and 1.6× PLL multiplication, it achieves 32 MHz system clock - validated across full temperature and voltage range per Renesas Electrical Specifications Chapter 33.
Does the UPD70F3822GB-GAH-AX include an integrated CAN transceiver?
No, the UPD70F3822GB-GAH-AX integrates dual CAN 2.0B protocol controllers but requires external CAN transceivers (e.g., SN65HVD230) for physical layer signaling. Its CAN_TX/CAN_RX pins are CMOS-level outputs/inputs compliant with ISO 11898-1 logical interface requirements.
What debug interface does the UPD70F3822GB-GAH-AX support?
The UPD70F3822GB-GAH-AX supports single-wire debug (SWD) via dedicated pins P10 (SWDIO) and P11 (SWCLK), enabling non-intrusive real-time tracing, breakpoint insertion, and memory inspection using Renesas E2 emulator or compatible third-party tools.
Is the UPD70F3822GB-GAH-AX qualified for automotive applications?
No, the UPD70F3822GB-GAH-AX is rated as a Standard-grade Renesas product intended for industrial equipment, office automation, and consumer appliances - not certified to AEC-Q100 or qualified for automotive safety-critical systems per Renesas quality grade documentation.
How is Flash memory protected against unauthorized access on the UPD70F3822GB-GAH-AX?
Flash protection on the UPD70F3822GB-GAH-AX is implemented via one-time-programmable (OTP) security fuses that disable read-out of Flash contents when blown. This feature is controlled through the Flash control register (FCTL) and enforced at hardware level - preventing firmware reverse engineering during field deployment.
UPD70F3822GB-GAH-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- V850ES/Jx3-H
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- V850ES
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, CSI, EBI/EMI, I2C, UART/USART, USB
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 45
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.85V ~ 3.6V
- Data Converters:
- A/D 10x10b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD70F3822GB-GAH-AX FAQ
1.How can I place an order for UPD70F3822GB-GAH-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3822GB-GAH-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 UPD70F3822GB-GAH-AX reliable?
The price and inventory of UPD70F3822GB-GAH-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD70F3822GB-GAH-AX is usually 5 days.
3.What payment methods are accepted for UPD70F3822GB-GAH-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3822GB-GAH-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3822GB-GAH-AX?
UPD70F3822GB-GAH-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3822GB-GAH-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 UPD70F3822GB-GAH-AX?
For technical support, including UPD70F3822GB-GAH-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3822GB-GAH-AX requirements.
6.How does Aetrix verify that UPD70F3822GB-GAH-AX is sourced from the original manufacturer or authorized distributors?
All UPD70F3822GB-GAH-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 UPD70F3822GB-GAH-AX meets industry standards.
7.What is the process for return or replacement of UPD70F3822GB-GAH-AX?
All UPD70F3822GB-GAH-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3822GB-GAH-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 UPD70F3822GB-GAH-AX part is unused and in its original packaging.
Return procedure for UPD70F3822GB-GAH-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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