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Renesas R5F51114ADFL#1A
- Part No.:
- R5F51114ADFL#1A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F51114ADFL#1A.pdf
- Description:
- IC MCU 32BIT 96KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
R5F51114ADFL#1A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 96 KB on-chip flash, 16 KB SRAM, 8 KB data flash, 14-channel 12-bit A/D converter (1.0 µs conversion), and dual 8-bit D/A outputs - deployed in industrial sensor nodes requiring deterministic real-time control and USB connectivity.
For engineers reviewing the R5F51114ADFL#1A datasheet, R5F51114ADFL#1A pinout, R5F51114ADFL#1A application, or R5F51114ADFL#1A equivalent, this page delivers verified specifications, package-confirmed pin functions, validated alternative MCUs, and application-specific design insights for embedded control, USB device firmware, and low-power sensor interface designs.
Technical Context
The R5F51114ADFL#1A implements the RXv1 CPU core with Harvard architecture, five-stage pipeline, and variable-length instructions - enabling single-cycle execution for most operations and 64-bit accumulator support for DSP-intensive tasks. Its clock system integrates PLL, high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), and CAC for IEC 60730 compliance.
Peripheral integration includes Event Link Controller (ELC) for interrupt-free module triggering, Data Transfer Controller (DTC) supporting chain transfers, and USB 2.0 full-speed host/function/OTG with BC (Battery Charger) detection - all synchronized to independent ICLK/PCLK/FCLK domains for precise timing isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC core with 5-stage pipeline, 50 DMIPS @ 32 MHz, 64-bit accumulator for single-instruction 32×32 multiply-accumulate |
| Memory | 96 KB flash (no wait states @ 32 MHz), 16 KB SRAM, 8 KB data flash rated for 1M erase/write cycles with background operation |
| ADC/DAC | 14-channel 12-bit A/D converter (1.0 µs min. conversion time), two 8-bit D/A channels (0 V to VCC output range) |
| USB Interface | USB 2.0 full-speed (12 Mbps) host/function/OTG controller with integrated transceiver, BC detection, and isochronous transfer support |
| Timers & Control | 6-channel MTU2 (PWM, input capture, phase counting), 2-channel CMT, RTC with calendar mode, IWDT with dedicated 15 kHz oscillator |
| Power & Temp | 1.8–3.6 V supply; −40°C to +85°C operating range; software standby current = 0.44 µA; wake-up time = 4.8 µs |
Pinout & Package
Package: PLQP0048KB-A - 48-pin LFQFP, 7 × 7 mm body, 0.5 mm pitch, exposed pad (thermal enhancement).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual power domains: VCC (1.8–3.6 V digital/analog), VSS (common reference); AVCC0/AVSS0 isolated for ADC noise immunity |
| USB0_DP / USB0_DM | USB differential data pair | Integrated full-speed transceiver pins; require 27 Ω series resistors and 1.5 kΩ pull-up on DP for device mode |
| AN000–AN015 | Analog input channels | 14 of 16 pins mapped to A/D converter; AN005 and AN007 reserved; support simultaneous sampling via double-trigger mode |
| DA0 / DA1 | Digital-to-analog outputs | Two independent 8-bit voltage outputs (0 V to VCC); usable for analog waveform generation or sensor calibration references |
| P03, P14–P17, P30–P32, etc. | General-purpose I/O | 46 total GPIOs across 11 ports; 5-V tolerant, configurable pull-up, open-drain capability, MPC-driven peripheral function remapping |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Direct hardware linking of 35 event sources (e.g., timer overflow, ADC completion) to peripherals without CPU intervention - enables ultra-low-latency response and sleep-mode operation |
| Data Transfer Controller (DTC) | Four transfer modes (normal, repeat, block, chain) triggered by any interrupt source - eliminates CPU overhead during memory-to-peripheral DMA transfers |
| USB OTG with BC Detection | Single-port USB 2.0 controller supporting host, device, and On-The-Go modes with Battery Charger (BC 1.2) signature detection - enables self-powered peripheral enumeration and charging negotiation |
| IEC 60730 Safety Support | On-chip CAC (clock accuracy measurement), IWDT with dedicated oscillator, RAM test assist functions - reduces external safety certification effort for Class B appliance control |
| Low-Power Wake-Up Architecture | Software standby mode draws 0.44 µA and recovers in 4.8 µs; RTC, IWDT, and ELC events can initiate wake-up - ideal for battery-operated sensor polling intervals |
Applications
| Industrial Sensor Node | USB Human Interface Device (HID) |
|---|---|
|
Use Scenario: Compact environmental monitoring unit with temperature, humidity, and analog gas sensors, logging data locally and uploading via USB mass storage or CDC ACM. IC Role / Device Role / Timing Role: Primary MCU executing sensor acquisition (via 12-bit ADC + temperature sensor), real-time timestamping (RTC), and USB device stack (CDC/MSD class). Use Value: Integrated USB PHY eliminates external transceiver; 8 KB data flash enables robust firmware-over-USB updates; 4.8 µs wake-up supports 100 ms sensor polling without excessive power penalty. |
Use Scenario: Programmable industrial keypad or control panel with tactile feedback, LED indicators, and configuration via USB HID report descriptors. IC Role / Device Role / Timing Role: HID device controller managing key matrix scan (GPIO), LED PWM (MTU2), and bidirectional report exchange over USB full-speed endpoint 0 and interrupt IN/OUT pipes. Use Value: Dual 8-bit DACs generate analog feedback signals (e.g., haptic drive voltage); ELC links button press to immediate LED response without interrupt latency; 5-V tolerant GPIO simplifies direct switch interfacing. |
| Smart Meter Communication Module | Low-Power Edge Gateway |
|
Use Scenario: Sub-metering add-on board communicating with main meter MCU via RSPI or SCI, aggregating pulse inputs and transmitting via USB to concentrator PC. IC Role / Device Role / Timing Role: Protocol bridge MCU handling SPI slave interface to meter SoC, UART-to-USB CDC translation, and secure firmware update verification using CRC calculator and data flash. Use Value: RSPI supports 16 Mbps burst reads from meter registers; CRC module computes X16+X12+X5+1 polynomial for firmware image integrity; software standby mode extends battery life between hourly uploads. |
Use Scenario: Wireless sensor network edge node collecting Zigbee/Z-Wave data and forwarding via USB to host gateway, with local preprocessing and buffer management. IC Role / Device Role / Timing Role: USB host controller enumerating and managing external USB-to-serial adapters (e.g., CP2102), while running lightweight protocol stack on RX core with DTC-assisted UART buffering. Use Value: USB host mode (≥32 KB ROM required - confirmed for R5F51114ADFL#1A per datasheet Table 1.2) enables plug-and-play adapter support; 96 KB flash accommodates dual-bank bootloader and application partitioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51114ADFM#3A | Same core, memory, and peripherals; differs only in package (64-pin LFQFP vs. 48-pin LFQFP) and pin count (64 vs. 48 I/O) | Supports larger peripheral count: 6-channel MTU2, full SCI1/SCI5/SCI12, SSLA1–SSLA3 RSPI chip selects - not available on 48-pin variant | Select when design requires >46 GPIOs, additional serial interfaces, or RSPI multi-slave control; PCB layout change required due to footprint and pinout mismatch. |
| R5F51115ADFL#3A | Identical 48-pin LFQFP package and pinout; differs in flash/RAM: 128 KB flash / 16 KB RAM (vs. 96 KB / 16 KB) | Enables larger USB device stacks (e.g., composite HID+MSC), extended OTA update partitions, or deeper real-time task queues without external memory | Select when firmware size exceeds 96 KB or future-proofing for feature expansion is critical; drop-in replacement with no hardware changes. |
Compared with R5F51114ADFL#1A, R5F51114ADFM#3A offers expanded I/O and peripheral access at the cost of larger footprint and layout redesign, while R5F51115ADFL#3A provides 33% more flash in identical packaging - making it the preferred upgrade path for code-growth-sensitive USB device applications.
Availability
R5F51114ADFL#1A is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, smart meter communication modules, and low-power edge gateways requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for R5F51114ADFL#1A 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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX111 Group, including R5F51114ADFL#1A, was designed for cost-sensitive, low-power embedded control applications demanding USB connectivity, real-time responsiveness, and functional safety support - targeting industrial automation, building controls, and portable instrumentation.
FAQ
What is the maximum operating frequency and core performance of the R5F51114ADFL#1A?
The R5F51114ADFL#1A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS (Dhrystone MIPS) performance. Its RXv1 32-bit CPU core features a five-stage pipeline, variable-length instruction set, and 64-bit accumulator - enabling efficient execution of real-time control algorithms and signal processing tasks within the R5F51114ADFL#1A's 96 KB flash constraint.
Does the R5F51114ADFL#1A support USB device, host, and OTG functionality?
Yes, the R5F51114ADFL#1A integrates a USB 2.0 full-speed (12 Mbps) host/function/OTG module with on-chip transceiver. It supports USB device classes (CDC, HID, MSD), host enumeration of peripherals like USB-to-serial adapters, and On-The-Go role switching - all confirmed in the R5F51114ADFL#1A datasheet section 1.5 and Table 1.2 for 48-pin packages.
What are the analog capabilities of the R5F51114ADFL#1A?
The R5F51114ADFL#1A includes a 14-channel 12-bit A/D converter with 1.0 µs minimum conversion time at 32 MHz ADCLK, plus two 8-bit D/A converters (DA0, DA1) delivering 0 V to VCC output. It also integrates an on-die temperature sensor digitized through the A/D channel - all supported in the R5F51114ADFL#1A's 48-pin LFQFP package per datasheet Tables 1.2 and 1.4.
How does the R5F51114ADFL#1A manage low-power operation?
The R5F51114ADFL#1A offers three low-power modes, including software standby drawing just 0.44 µA and recovering in 4.8 µs. Wake-up can be triggered by RTC alarm, IWDT timeout, or ELC-linked peripheral events - enabling energy-efficient sensor polling, USB suspend/resume, and battery-backed operation without external supervisors, as specified for the R5F51114ADFL#1A in its electrical characteristics table.
Is the R5F51114ADFL#1A pin-compatible with other RX111 Group members?
No - the R5F51114ADFL#1A uses the PLQP0048KB-A 48-pin LFQFP package, which has a distinct pinout from 64-pin variants (e.g., R5F51114ADFM#3A). While functionally similar, pin mapping differs significantly: e.g., USB0_DP/DM appear on pins 12/13 in the 48-pin version but on pins 59/60 in the 64-pin version. Always verify against the R5F51114ADFL#1A-specific pin assignment diagram (Figure 1.5).
R5F51114ADFL#1A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- RX111
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, SCI, SPI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 30
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51114ADFL#1A FAQ
1.How can I place an order for R5F51114ADFL#1A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51114ADFL#1A 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 R5F51114ADFL#1A reliable?
The price and inventory of R5F51114ADFL#1A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51114ADFL#1A is usually 5 days.
3.What payment methods are accepted for R5F51114ADFL#1A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51114ADFL#1A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51114ADFL#1A?
R5F51114ADFL#1A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51114ADFL#1A 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 R5F51114ADFL#1A?
For technical support, including R5F51114ADFL#1A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51114ADFL#1A requirements.
6.How does Aetrix verify that R5F51114ADFL#1A is sourced from the original manufacturer or authorized distributors?
All R5F51114ADFL#1A 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 R5F51114ADFL#1A meets industry standards.
7.What is the process for return or replacement of R5F51114ADFL#1A?
All R5F51114ADFL#1A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51114ADFL#1A, 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 R5F51114ADFL#1A part is unused and in its original packaging.
Return procedure for R5F51114ADFL#1A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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