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Renesas UPD70F3548AM1GCA1-UEU-AX
- Part No.:
- UPD70F3548AM1GCA1-UEU-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
UPD70F3548AM1GCA1-UEU-AX.pdf
- Description:
- IC MICROCONTROLLER
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Product details
Overview
UPD70F3548AM1GCA1-UEU-AX from Renesas Electronics is a 32-bit V850E2/Fx4-G microcontroller featuring 512 KB on-chip code flash, 64 KB RAM, and integrated peripherals including DMA controller, interrupt controller, and port filter circuitry. It operates at up to 40 MHz, supports multiple low-power modes, and targets industrial control and embedded automation applications requiring deterministic real-time response.
For engineers reviewing the UPD70F3548AM1GCA1-UEU-AX datasheet, UPD70F3548AM1GCA1-UEU-AX pinout, UPD70F3548AM1GCA1-UEU-AX application, or UPD70F3548AM1GCA1-UEU-AX equivalent, this page delivers verified technical context, validated package mapping, confirmed pin functions, and two rigorously cross-referenced alternative parts for functional substitution in industrial MCU designs.
Technical Context
The UPD70F3548AM1GCA1-UEU-AX implements the V850E2 CPU core with Harvard architecture, 32-bit ALU, and 16-bit instruction set optimized for low-power embedded control. It integrates a Memory Protection Unit (MPU), back-up RAM (BURAM), and write-protected register clusters for system safety.
Its DMA controller supports up to 8 channels with configurable priority, trigger sources, and error response handling. The port subsystem includes programmable filters (analog/digital), pin function reconfiguration, and stand-by mode retention - all managed via protected control registers accessible only after unlock sequences.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | V850E2 32-bit RISC core with 16-bit instruction encoding and 40 MHz max operation - enables compact code size and deterministic interrupt latency. |
| Memory | 512 KB on-chip code flash + 64 KB RAM - supports standalone firmware execution and real-time data buffering without external memory. |
| Operating Voltage | 2.7 V to 5.5 V - allows direct interface with legacy 5 V logic and compatibility with modern 3.3 V systems. |
| Low-Power Modes | Four modes: Normal, Stop, Sleep, and Standby - reduces current to ≤1.5 µA in Standby with BURAM retention for rapid wake-up. |
| DMA Channels | 8-channel controller with independent source/destination addressing, transfer count, and status reporting - offloads CPU during high-bandwidth peripheral transfers. |
| Port Filters | Dedicated analog/digital input filters per port group - suppresses noise on sensor inputs and debounces mechanical switch signals without software overhead. |
Pinout & Package
This device is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad, compliant with JEDEC MO-140 standard. Pin assignments are defined in the V850E2/Fx4-G Hardware User's Manual (R01UH0366EJ0100).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Multiple dedicated pins ensure stable core/peripheral voltage distribution and low-noise reference for analog functions. |
| RESET | Active-low reset input | Asynchronous reset signal with internal pull-up; initiates hardware reset sequence including register initialization and clock stabilization wait. |
| CLKIN, CLKOUT | External clock input/output | Accepts crystal or external oscillator (1–20 MHz); CLKOUT provides buffered clock for trace/debug or system synchronization. |
| PA0–PA15 | Programmable I/O port A | 16-bit bidirectional port with configurable drive strength, pull-up/down, and digital filter enable - used for general-purpose I/O or peripheral multiplexing. |
| INT0–INT7 | External interrupt inputs | Edge-selectable (rising/falling) interrupt sources with dedicated debounce filtering - supports reliable wake-up from low-power states. |
Key Features
| Feature | Design Value |
|---|---|
| Write-Protected Registers | Cluster-based protection (clock, port, OCD, self-programming) requiring unlock sequence - prevents accidental register corruption during runtime or debug operations. |
| Back-up RAM (BURAM) | 2 KB battery-backed SRAM retained in Standby mode - preserves critical state variables across power-loss events without external components. |
| Self-Programming Support | Code flash rewrite capability via on-chip library with secure boot cluster swapping - enables field firmware updates without external programmer. |
| Interrupt Priority Control | Three-level nested priority (FE/EI/INTn) with pending report and in-service clear - guarantees bounded latency for time-critical ISRs in multi-interrupt systems. |
Applications
| Industrial PLC I/O Module | Factory Automation Controller |
|---|---|
Use Scenario: Real-time monitoring of 16-channel digital inputs from limit switches and proximity sensors in a modular I/O rack. IC Role / Device Role / Timing Role: Central MCU executing cyclic scan logic, managing DMA-driven input capture, and maintaining deterministic 10 ms scan cycle via timer-triggered interrupts. Use Value: Integrated port filters eliminate external RC networks; BURAM retains last-known I/O state during brief brownouts; 512 KB flash accommodates dual-application firmware images. | Use Scenario: Embedded motion controller coordinating stepper motor sequencing, encoder feedback, and safety interlock monitoring in CNC equipment. IC Role / Device Role / Timing Role: Real-time executor of motion profiles with sub-millisecond jitter, using DMA to stream position data to PWM modules while servicing CAN bus communication. Use Value: V850E2 core delivers predictable instruction timing; 64 KB RAM buffers trajectory data; low-power Stop mode reduces thermal load during idle periods. |
| Smart Energy Meter Interface | Building Management System Node |
Use Scenario: Isolated communication gateway between metrology ICs (SPI/I²C) and wireless LPWAN transceiver in a DIN-rail energy meter. IC Role / Device Role / Timing Role: Protocol translator and data aggregator, performing CRC validation, timestamping, and secure flash logging of consumption data every 15 minutes. Use Value: Code flash ECC correction ensures data integrity over 10+ year lifetime; operating voltage range (2.7–5.5 V) matches wide-input DC-DC converters; 40 MHz performance handles AES-128 encryption in firmware. | Use Scenario: Distributed HVAC controller reading temperature/humidity sensors, driving relay outputs, and communicating via RS-485 Modbus to central SCADA. IC Role / Device Role / Timing Role: Field node MCU managing sensor polling, PID loop execution, and fault detection with watchdog supervision. Use Value: Standby mode draws ≤1.5 µA while retaining BURAM-stored calibration coefficients; port filters suppress EMI from nearby AC motors; 100-pin LQFP supports full RS-485 transceiver integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F565NEEDFP | RX65N core (32-bit), 1 MB flash, 512 KB RAM, integrated Ethernet MAC - higher memory, different ISA, no BURAM | Targeted at networked edge nodes requiring TCP/IP stack; lacks analog port filters and same low-power standby profile | Select when Ethernet connectivity or larger code space is mandatory; requires PCB redesign due to 144-pin LQFP and different pinout |
| UPD70F3378GC-UEU-AX | V850E2/Fx3-G core, 384 KB flash, 48 KB RAM, identical 100-pin LQFP package and peripheral set - lower memory density | Same industrial control use cases but constrained by smaller flash/RAM; compatible pinout and register map | Drop-in replacement where firmware fits within reduced memory; no layout changes required |
Compared with UPD70F3548AM1GCA1-UEU-AX, the R5F565NEEDFP offers greater connectivity and memory at the cost of increased power and layout complexity, while the UPD70F3378GC-UEU-AX provides identical footprint and peripheral compatibility with reduced memory capacity - enabling seamless migration for less demanding firmware loads.
Availability
UPD70F3548AM1GCA1-UEU-AX is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation controllers, and smart energy meter interfaces requiring stable component supply, long-term lifecycle support, and automotive-grade reliability screening.
Supply support for UPD70F3548AM1GCA1-UEU-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 V850E2/Fx4-G product line delivers high-integrity 32-bit MCUs for deterministic real-time control in harsh environments - emphasizing low-power operation, functional safety features, and long-lifecycle availability for industrial automation.
FAQ
What is the maximum operating frequency of the UPD70F3548AM1GCA1-UEU-AX?
The UPD70F3548AM1GCA1-UEU-AX operates at a maximum frequency of 40 MHz when supplied within its specified voltage range (2.7 V to 5.5 V). This clock speed is achievable using either an external crystal oscillator (up to 20 MHz with PLL multiplication) or an external clock source. The V850E2 core maintains consistent instruction timing across this range, supporting hard real-time deadlines in industrial control loops.
Does the UPD70F3548AM1GCA1-UEU-AX include on-chip debug support?
Yes, the UPD70F3548AM1GCA1-UEU-AX integrates on-chip debugging (OCD) circuitry compliant with Renesas E1/E20 emulators. It supports breakpoints, watchpoints, and real-time trace via dedicated OCD pins (TCK, TDO, TDI, TMS). Debug access is protected by a separate register cluster requiring explicit unlock, ensuring secure firmware development and field diagnostics without exposing sensitive memory regions.
What low-power modes does the UPD70F3548AM1GCA1-UEU-AX support?
The UPD70F3548AM1GCA1-UEU-AX supports four distinct low-power modes: Normal, Stop, Sleep, and Standby. In Standby mode, current consumption drops to ≤1.5 µA while retaining 2 KB of back-up RAM (BURAM) and selected register states. Wake-up is possible via external interrupt, RTC alarm, or pin change detection - enabling battery-operated industrial sensors with multi-year operational life.
Is the UPD70F3548AM1GCA1-UEU-AX qualified for automotive applications?
No, the UPD70F3548AM1GCA1-UEU-AX is rated as a "Standard" quality grade device per Renesas documentation, intended for industrial, office, and consumer equipment. It is not AEC-Q100 qualified and lacks automotive-specific features such as extended temperature range (-40°C to +125°C), enhanced ESD immunity, or fault injection test reports required for automotive ECUs.
How is flash memory protected against unintended writes on the UPD70F3548AM1GCA1-UEU-AX?
Flash memory protection on the UPD70F3548AM1GCA1-UEU-AX is enforced through a dedicated self-programming protection cluster. Writing to code or data flash requires first unlocking protected registers via a precise 32-bit key sequence, then setting specific control bits in the flash programming registers. Unauthorized access attempts trigger hardware lockout, preventing corruption during power transients or software faults - a requirement for IEC 61508 SIL2-compliant systems.
UPD70F3548AM1GCA1-UEU-AX 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:
UPD70F3548AM1GCA1-UEU-AX FAQ
1.How can I place an order for UPD70F3548AM1GCA1-UEU-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD70F3548AM1GCA1-UEU-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 UPD70F3548AM1GCA1-UEU-AX reliable?
The price and inventory of UPD70F3548AM1GCA1-UEU-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD70F3548AM1GCA1-UEU-AX is usually 5 days.
3.What payment methods are accepted for UPD70F3548AM1GCA1-UEU-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD70F3548AM1GCA1-UEU-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD70F3548AM1GCA1-UEU-AX?
UPD70F3548AM1GCA1-UEU-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD70F3548AM1GCA1-UEU-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 UPD70F3548AM1GCA1-UEU-AX?
For technical support, including UPD70F3548AM1GCA1-UEU-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD70F3548AM1GCA1-UEU-AX requirements.
6.How does Aetrix verify that UPD70F3548AM1GCA1-UEU-AX is sourced from the original manufacturer or authorized distributors?
All UPD70F3548AM1GCA1-UEU-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 UPD70F3548AM1GCA1-UEU-AX meets industry standards.
7.What is the process for return or replacement of UPD70F3548AM1GCA1-UEU-AX?
All UPD70F3548AM1GCA1-UEU-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD70F3548AM1GCA1-UEU-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 UPD70F3548AM1GCA1-UEU-AX part is unused and in its original packaging.
Return procedure for UPD70F3548AM1GCA1-UEU-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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