My Inquiry
My Account
Renesas R5F3640MDFA#UE
- Part No.:
- R5F3640MDFA#UE
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
R5F3640MDFA#UE.pdf
- Description:
- IC MICROCONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:3,035
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F3640MDFA#UE from Renesas Electronics is a 16-bit M16C/64 Group microcontroller featuring 256 KB on-chip Flash memory, 16 KB RAM, and operating at up to 20 MHz. It integrates UART, I²C, and 16-bit timer/counters, and targets industrial control and motor drive applications requiring deterministic real-time response.
For engineers reviewing the R5F3640MDFA#UE datasheet, R5F3640MDFA#UE pinout, R5F3640MDFA#UE application, or R5F3640MDFA#UE equivalent, key selection criteria include its 100-pin LQFP package, 2.7–5.5 V supply range, built-in voltage detection circuit, and support for both single-chip and expanded bus modes in embedded control designs.
Technical Context
The R5F3640MDFA#UE implements the M16C CPU core with 16-bit data path and CISC architecture, supporting 16 MB address space via 24-bit addressing. Its hardware includes a programmable watchdog timer, power-on reset, brown-out reset, and oscillation stop detection-enabling robust operation in noisy industrial environments.
It supports multiple clock sources: main crystal (1–10 MHz), sub-crystal (32.768 kHz), and internal high-speed oscillator (1 MHz). The device uses separate bus mode by default but can be configured for multiplexed bus operation when external memory expansion is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M16C/60 series 16-bit CISC core with 24-bit address bus |
| Max Operating Frequency | 20 MHz - enables real-time loop execution within ≤50 ns instruction cycles |
| Flash Memory | 256 KB on-chip Flash - supports in-application programming (IAP) and sector erase |
| RAM Size | 16 KB on-chip RAM - sufficient for stack, heap, and peripheral buffer allocation |
| Supply Voltage | 2.7–5.5 V - compatible with both 3.3 V and 5 V industrial logic families |
| Operating Temperature | −40°C to +85°C - qualified for extended industrial ambient conditions |
| I/O Pins | 85 general-purpose CMOS I/O - configurable as input, output, or alternate function (e.g., UART, PWM) |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs ensure stable core and I/O rail decoupling |
| XT1, XT2 | Main system clock input | Accepts 1–10 MHz crystal or external clock for precise timing |
| CLKOUT | System clock output | Provides buffered clock signal for trace/debug or synchronizing peripherals |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers full hardware initialization |
| P0_0–P0_7 | Port 0 bidirectional I/O | Configurable as general I/O or UART0 TX/RX, I²C SDA/SCL, or timer inputs |
| P3_0–P3_7 | Port 3 bidirectional I/O | Supports PWM output, external interrupt inputs, and analog comparator inputs |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Fully integrated on-chip debug (OCD) with single-wire trace capability - eliminates need for external emulator during development |
| Voltage detection circuit | Programmable low-voltage detection (LVD) with interrupt and reset options - prevents erratic operation during brown-out |
| Peripheral integration | Three 16-bit timer/counters with capture/compare, two UARTs, one I²C, and 10-channel 10-bit ADC - reduces BOM count in motion control systems |
| Power management modes | Wait, Stop, and Deep Stop modes - achieves <1 µA standby current for battery-backed applications |
| Memory protection | Flash lock-bit and ROM protection registers - prevent unauthorized read/write access to firmware |
Applications
| Industrial PLC I/O Module | Brushless DC Motor Controller |
|---|---|
Use Scenario: Compact DIN-rail mounted I/O expansion module handling digital input sampling and relay output switching in factory automation cabinets. IC Role / Device Role / Timing Role: Central controller executing cyclic scan logic, managing serial communication with master PLC, and driving opto-isolated I/O drivers. Use Value: 85 GPIO pins and dual UARTs enable direct RS-485 Modbus RTU slave implementation without external transceivers or protocol offload ICs. | Use Scenario: Closed-loop commutation control for 3-phase BLDC motors in HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Real-time PWM generation, hall sensor decoding, current sensing ADC acquisition, and fault monitoring. Use Value: Three independent 16-bit timers with complementary PWM outputs and dead-time insertion support precise 6-step or FOC-based drive without external gate drivers. |
| Smart Power Meter Interface | Factory Asset Monitor Node |
Use Scenario: Sub-metering node interfacing with metrology ICs and communicating via optical port or RF module to central AMI infrastructure. IC Role / Device Role / Timing Role: Data concentrator and protocol translator between SPI-based energy measurement ASIC and UART/I²C-connected wireless SoC. Use Value: 256 KB Flash stores dual firmware images (active + backup), enabling safe over-the-air updates without service interruption. | Use Scenario: Edge sensor aggregator collecting vibration, temperature, and humidity data from rotating equipment using analog and digital sensors. IC Role / Device Role / Timing Role: Low-power host MCU managing sensor polling, local threshold-based alerting, and scheduled BLE/Wi-Fi upload bursts. Use Value: Deep Stop mode with wake-on-external-interrupt allows multi-year battery life while maintaining responsiveness to critical events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F3640MDFP#30 | Same die, 80-pin PQFP package - 15 fewer GPIO and no external bus interface pins | Limited to compact, self-contained control tasks without external memory or parallel peripherals | Select when board space is constrained and external bus expansion is unnecessary |
| R5F3650MDFA#UE | Pin-compatible upgrade with 512 KB Flash, 32 KB RAM, and enhanced ADC (12-bit, 16-channel) | Better suited for applications requiring larger firmware, more data logging, or higher-resolution analog sensing | Choose for future-proofing or when migrating from R5F3640MDFA#UE with minimal PCB change |
Compared with R5F3640MDFP#30, the R5F3640MDFA#UE provides full external bus support and additional I/O for modular industrial designs; versus R5F3650MDFA#UE, it offers cost-optimized memory sizing for established firmware footprints without needing extra Flash or RAM headroom.
Availability
R5F3640MDFA#UE is available at Aetrix Electronics and suitable for industrial PLC modules, BLDC motor controllers, smart meter interfaces, and factory asset monitors requiring stable component supply across long production lifecycles.
Supply support for R5F3640MDFA#UE 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 M16C/64 Group, including R5F3640MDFA#UE, was designed for deterministic real-time control in cost-sensitive industrial equipment where reliability, code density, and peripheral integration outweigh raw processing throughput.
FAQ
What is the maximum operating frequency of the R5F3640MDFA#UE?
The R5F3640MDFA#UE operates at a maximum frequency of 20 MHz when driven by its main clock source. This frequency is achievable using an external crystal (1–10 MHz) with internal PLL multiplication or the internal high-speed oscillator. At 20 MHz, the R5F3640MDFA#UE delivers consistent instruction timing critical for motor control loops and industrial communication protocols. All timing specifications in the R5F3640MDFA#UE datasheet assume operation within this rated frequency and voltage range.
Does the R5F3640MDFA#UE support in-system programming (ISP)?
Yes, the R5F3640MDFA#UE supports in-application programming (IAP) of its 256 KB on-chip Flash memory via its built-in boot ROM. This allows firmware updates without removing the R5F3640MDFA#UE from the target board. The R5F3640MDFA#UE implements sector-erase and byte-programming functions under user software control, with lock-bit protection to prevent accidental overwrite. IAP capability is commonly used in R5F3640MDFA#UE-based devices for field upgrades and calibration data storage.
What debug interface does the R5F3640MDFA#UE provide?
The R5F3640MDFA#UE features an integrated on-chip debug (OCD) interface accessible through a single-wire SWD-like serial port. This interface supports full breakpoint, watchpoint, register read/write, and memory inspection without requiring external JTAG hardware. The OCD is active in all operating modes except Deep Stop, and remains functional even when the R5F3640MDFA#UE is running user code. Debug access is secured via password-protected entry sequence to prevent unauthorized firmware extraction.
Can the R5F3640MDFA#UE operate from a 3.3 V supply?
Yes, the R5F3640MDFA#UE operates reliably across a supply range of 2.7 V to 5.5 V, fully covering standard 3.3 V nominal systems. At 3.3 V, the R5F3640MDFA#UE maintains its full 20 MHz maximum frequency and all I/O functionality, including TTL- and CMOS-compatible input thresholds. System designers using 3.3 V rails should ensure adequate decoupling near the VCC pins of the R5F3640MDFA#UE and verify that external peripherals share compatible logic levels.
Is the R5F3640MDFA#UE qualified for automotive applications?
No, the R5F3640MDFA#UE is classified as a "Standard" quality grade device per Renesas documentation and is intended for industrial, office, and consumer applications-not automotive or safety-critical systems. It lacks AEC-Q100 qualification, extended temperature screening, and automotive-specific failure mode analysis. For automotive use cases, Renesas recommends dedicated RH850 or RL78/F1x automotive-grade MCUs instead of the R5F3640MDFA#UE.
R5F3640MDFA#UE 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:
R5F3640MDFA#UE FAQ
1.How can I place an order for R5F3640MDFA#UE through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F3640MDFA#UE 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 R5F3640MDFA#UE reliable?
The price and inventory of R5F3640MDFA#UE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F3640MDFA#UE is usually 5 days.
3.What payment methods are accepted for R5F3640MDFA#UE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F3640MDFA#UE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F3640MDFA#UE?
R5F3640MDFA#UE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F3640MDFA#UE 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 R5F3640MDFA#UE?
For technical support, including R5F3640MDFA#UE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F3640MDFA#UE requirements.
6.How does Aetrix verify that R5F3640MDFA#UE is sourced from the original manufacturer or authorized distributors?
All R5F3640MDFA#UE 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 R5F3640MDFA#UE meets industry standards.
7.What is the process for return or replacement of R5F3640MDFA#UE?
All R5F3640MDFA#UE units undergo pre-shipment inspection (PSI). If there is an issue with R5F3640MDFA#UE, 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 R5F3640MDFA#UE part is unused and in its original packaging.
Return procedure for R5F3640MDFA#UE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F3640MDFA#UE Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
