My Inquiry
My Account
Renesas R5F3640MDFA#UA
- Part No.:
- R5F3640MDFA#UA
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
R5F3640MDFA#UA.pdf
- Description:
- IC MCU QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,379
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F3640MDFA#UA from Renesas Electronics is a 16-bit M16C/64 Group microcontroller featuring 256 KB on-chip flash memory, 16 KB RAM, and operation up to 20 MHz. It integrates UART, I2C, and 16-bit timer arrays for embedded control in industrial HMI and motor drive subsystems.
For engineers reviewing the R5F3640MDFA#UA datasheet, R5F3640MDFA#UA pinout, R5F3640MDFA#UA application, or R5F3640MDFA#UA equivalent, key selection criteria include its 100-pin LQFP package, 2.7–5.5 V supply range, integrated voltage detector with brown-out reset, and support for single-cycle instruction execution in selected modes.
Technical Context
The R5F3640MDFA#UA implements the M16C CPU core with 16-bit data bus and 24-bit address space, supporting both 16-bit and 32-bit arithmetic via register pairs. It features dual clock domains: main system clock (up to 20 MHz) and sub-clock (32.768 kHz) for real-time counter and low-power stop modes.
Peripheral integration includes three 16-bit timer arrays (each with capture/compare/PWM), two UART channels with framing error detection, one I2C interface compliant with standard/fast-mode, and 12-bit ADC with 16 input channels and programmable sampling time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | M16C/64 16-bit CISC CPU with 24-bit addressing |
| Max Operating Frequency | 20 MHz - enables deterministic real-time response in motor commutation loops |
| Flash Memory | 256 KB - sufficient for field-upgradable firmware with bootloader and safety monitor partitions |
| RAM Size | 16 KB - supports multi-tasking RTOS stacks and buffered communication buffers |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with industrial 3.3 V and legacy 5 V systems without level-shifting |
| ADC Resolution | 12-bit with 16-channel multiplexer - provides ±1 LSB INL for precision current/voltage sensing |
| Operating Temperature | −40°C to +85°C - qualified for extended-temperature industrial environments |
Pinout & Package
Package: 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated analog/digital power pins with separate AGND/DGND routing paths |
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART0 TX/RX and timer output |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs (INTP0–INTP3) and ADC trigger signals |
| P30–P37 | Port 3 bidirectional I/O | Includes I2C SDA/SCL, PWM outputs, and high-current sink capability (20 mA per pin) |
| XT1, XT2 | Main crystal oscillator terminals | Accepts 1–20 MHz parallel-resonant crystals for precise system timing |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external debounced signal or watchdog timeout pulse |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug interface | Fully integrated on-chip debugging (OCDS) with breakpoint and trace support - eliminates need for external emulator hardware |
| Brown-out reset circuit | Programmable threshold (2.7 V / 3.3 V / 4.0 V) with hysteresis - prevents erratic operation during power sag in factory automation equipment |
| Low-power modes | Stop, Wait, and Subclock-only modes with wake-up via external interrupt or RTC alarm - extends battery life in portable HMIs |
| Watchdog timer | Independent 14-bit free-running timer with windowed refresh - detects software lockup in safety-critical motor control firmware |
| Flash programming | Self-programmable flash with erase block size of 1 KB - enables in-field firmware updates without external programmer |
Applications
| Industrial Motor Control | Factory HMI Panel |
|---|---|
Use Scenario: Closed-loop BLDC motor control in conveyor drives requiring precise timing and analog feedback. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, sampling current sensors via 12-bit ADC, generating 6-channel PWM with dead-time insertion. Use Value: Integrated 16-bit timer arrays with complementary PWM output reduce external gate-driver logic and PCB footprint. | Use Scenario: Touch-enabled operator interface with serial communication to PLC and local data logging. IC Role / Device Role / Timing Role: System-on-module host managing display refresh, touch scan, UART/I²C peripheral bridging, and nonvolatile parameter storage. Use Value: 256 KB flash accommodates GUI assets and firmware versioning; 16 KB RAM supports multitasking UI framework. |
| Smart Power Meter | Building Automation Controller |
Use Scenario: DIN-rail mounted meter measuring voltage, current, and energy consumption with RS-485 communication. IC Role / Device Role / Timing Role: Data acquisition engine synchronizing ADC sampling to zero-crossing detection and formatting Modbus frames over UART. Use Value: Dual UART channels allow simultaneous local debug port and isolated RS-485 interface without external transceivers. | Use Scenario: HVAC zone controller interfacing with temperature sensors, relays, and BACnet MS/TP network. IC Role / Device Role / Timing Role: Real-time coordinator managing sensor polling intervals, relay timing, and protocol stack timing constraints. Use Value: Subclock domain enables accurate 1-second RTC ticks while main CPU sleeps, reducing average power to <100 µA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F3640MDFB#UA | Same die, 100-pin LQFP but with different mask ROM content and calibration data; identical electrical specs and pinout | No functional difference - used for factory-programmed variants with preloaded bootloader | Select when requiring Renesas-certified bootloader image pre-flashed at wafer test |
| R5F3640MDFA#V0 | Identical silicon and package; differs only in tape-and-reel packaging (tray vs. reel) and date code marking | No impact on design or performance - purely logistics-level distinction | Select for automated SMT line compatibility with standard 1000-unit reels |
Compared with R5F3640MDFA#UA, the R5F3640MDFB#UA offers identical real-time performance and peripheral set but targets secure boot configurations, while R5F3640MDFA#V0 delivers identical functionality in volume-friendly packaging-neither requires PCB or firmware changes.
Availability
R5F3640MDFA#UA is available at Aetrix Electronics and suitable for industrial motor control, factory HMI panels, and smart power metering requiring stable component supply across multi-year production cycles.
Supply support for R5F3640MDFA#UA 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 R5F3640MDFA#UA belongs to the M16C/64 Group - a mature 16-bit MCU family designed for cost-sensitive, high-reliability industrial control applications where deterministic timing and long-term supply stability are critical.
FAQ
What is the maximum operating frequency of the R5F3640MDFA#UA?
The R5F3640MDFA#UA operates at a maximum system clock frequency of 20 MHz, achieved using an external crystal (1–20 MHz) connected to XT1/XT2 pins or an external clock source. This frequency enables single-cycle instruction execution for most instructions, supporting tight real-time deadlines in motor control and industrial sequencing applications. The R5F3640MDFA#UA maintains full specification compliance-including timing margins and peripheral operation-across its entire −40°C to +85°C temperature range at this speed.
Does the R5F3640MDFA#UA support in-system programming of its flash memory?
Yes, the R5F3640MDFA#UA supports in-system programming (ISP) of its 256 KB on-chip flash memory via its on-chip debug interface (OCDS) or through user firmware using the built-in flash control module. Programming can be performed at standard VCC (2.7–5.5 V) without high-voltage assist, and erase operations are supported at block (1 KB) and chip levels. This capability allows field firmware updates and configuration changes without removing the R5F3640MDFA#UA from the target board.
What low-power modes are available on the R5F3640MDFA#UA?
The R5F3640MDFA#UA provides three hardware-supported low-power modes: Stop mode (CPU and most peripherals halted, RAM retained, wake-up via interrupt or RTC), Wait mode (CPU stopped, peripherals active, clocks running), and Subclock-only mode (only subclock domain active for RTC). Each mode reduces current consumption significantly-Stop mode draws less than 1 µA at 3.3 V-making the R5F3640MDFA#UA suitable for battery-backed applications like smart meters and remote sensors.
Is the R5F3640MDFA#UA pin-compatible with other M16C/64 Group devices?
Yes, the R5F3640MDFA#UA shares the same 100-pin LQFP package and pin assignment with other members of the M16C/64 Group that use the #UA suffix, including R5F3640MDFB#UA and R5F3640MDFA#V0. Pin functions-including I/O, peripheral mapping, power, and reset-are identical across these variants. This allows direct substitution within the same hardware design, provided firmware accounts for any differences in mask ROM content or factory calibration data.
What development tools are officially supported for the R5F3640MDFA#UA?
Renesas officially supports the R5F3640MDFA#UA with the E8a and E20 on-chip debug emulators, the CS+ (formerly High-performance Embedded Workshop) IDE, and the M16C/64 Group-specific device drivers and peripheral library. Renesas also provides the R5F3640MDFA#UA datasheet (REJ03B0216), hardware manual (this document), and application notes covering ADC calibration, PWM synchronization, and low-power mode implementation-all freely available on the Renesas website.
R5F3640MDFA#UA 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#UA FAQ
1.How can I place an order for R5F3640MDFA#UA through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F3640MDFA#UA 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#UA reliable?
The price and inventory of R5F3640MDFA#UA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F3640MDFA#UA is usually 5 days.
3.What payment methods are accepted for R5F3640MDFA#UA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F3640MDFA#UA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F3640MDFA#UA?
R5F3640MDFA#UA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F3640MDFA#UA 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#UA?
For technical support, including R5F3640MDFA#UA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F3640MDFA#UA requirements.
6.How does Aetrix verify that R5F3640MDFA#UA is sourced from the original manufacturer or authorized distributors?
All R5F3640MDFA#UA 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#UA meets industry standards.
7.What is the process for return or replacement of R5F3640MDFA#UA?
All R5F3640MDFA#UA units undergo pre-shipment inspection (PSI). If there is an issue with R5F3640MDFA#UA, 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#UA part is unused and in its original packaging.
Return procedure for R5F3640MDFA#UA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F3640MDFA#UA 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…
