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Renesas R5F51116ADFK#1A
- Part No.:
- R5F51116ADFK#1A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F51116ADFK#1A.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:720
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Product details
Overview
R5F51116ADFK#1A from Renesas is a 32-bit RX CPU-based microcontroller operating at up to 32 MHz (50 DMIPS), featuring 256 KB on-chip flash, 32 KB SRAM, 8 KB data flash, 14-channel 12-bit ADC, dual 8-bit DACs, USB 2.0 full-speed host/function/OTG, RTC, and ELC for low-power event-driven operation - deployed in industrial sensor nodes and USB-connected embedded control systems.
For engineers reviewing the R5F51116ADFK#1A datasheet, R5F51116ADFK#1A pinout, R5F51116ADFK#1A application, or R5F51116ADFK#1A equivalent, this page delivers verified package mapping (PLQP0064GA-A, 64-pin LQFP, 14 × 14 mm, 0.8 mm pitch), confirmed peripheral channel counts (6 MTU channels, 3 SCI, 1 RIIC, 1 RSPI), real-time clock calendar mode, USB BC support, and validated alternative options for migration or second sourcing.
Technical Context
The R5F51116ADFK#1A implements a CISC Harvard-architecture RX CPU with five-stage pipeline, variable-length instructions, and 64-bit accumulator for single-cycle 32×32 multiply-accumulate operations. Its clock system integrates PLL, high-speed on-chip oscillator (32 MHz ±1%), sub-clock (32.768 kHz), and CAC for frequency accuracy monitoring.
Peripheral coordination is managed via Event Link Controller (ELC), enabling direct module-to-module triggering without CPU intervention - critical for deterministic low-power operation. The DTC supports chain transfers across four modes, while the MTU2 provides six 16-bit timer channels with complementary PWM, phase counting, and A/D trigger generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 5-stage pipeline, 50 DMIPS @ 32 MHz - enables compact code footprint and deterministic interrupt latency. |
| Flash / RAM / Data Flash | 256 KB / 32 KB / 8 KB - sufficient for USB stack + RTOS + field-upgradable firmware with background erase/write capability. |
| ADC / DAC | 14-channel 12-bit ADC (1.0 µs min conversion), 2-channel 8-bit DAC - supports motor current sensing and analog output control in closed-loop systems. |
| USB Interface | USB 2.0 full-speed host/function/OTG (12 Mbps), BC detection, isochronous transfer - enables direct connection to USB peripherals or battery charging negotiation. |
| Timers & Control | 6-channel MTU2 (complementary PWM, phase counting), 2-channel CMT, ELC, POE2 - delivers precise waveform generation and event-synchronized peripheral activation. |
| Power & Temp | 1.8–3.6 V supply, −40 to +85°C (D-grade), software standby current 0.44 µA, wake-up time 4.8 µs - suitable for battery-backed or energy-constrained applications. |
| Clock Sources | External crystal (≤20 MHz), main/sub oscillators, 32 MHz ±1% on-chip HOCO, IWDT-dedicated 15 kHz oscillator - eliminates need for external timing components in most configurations. |
Pinout & Package
Package: PLQP0064GA-A, 64-pin LQFP, 14 × 14 mm body, 0.8 mm pitch, exposed pad not specified - compatible with standard reflow profiles and manual inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Core power / ground | Dual 3.3 V supply domains (VCC/VSS and VCC_USB/VSS_USB) isolate noise-sensitive USB transceiver from digital logic. |
| USB0_DP / USB0_DM | USB differential data pair | On-chip full-speed transceiver with integrated termination - requires only series 27 Ω resistors and proper PCB routing per USB spec. |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 1–20 MHz crystals; internal load capacitors configurable - eliminates external caps for many reference designs. |
| AN000–AN015 | Analog input channels | 14 dedicated ADC inputs with selectable sample-and-hold; AVCC0/AVSS0 pins enable independent analog domain filtering. |
| DA0 / DA1 | Analog voltage outputs | Two rail-to-rail 8-bit DAC outputs referenced to VCC - usable for biasing, calibration, or analog setpoint generation. |
| MTIOC0A–MTIOC5D | MTU2 waveform I/O | Six independent timer channels with complementary PWM outputs and dead-time insertion - directly drives half-bridge gate drivers. |
| SCI1/SCI5/SCI12 | Serial communication interfaces | Three independent SCI modules supporting UART, SPI, I²C emulation, and smart card protocols - reduces need for external level shifters or protocol converters. |
| RES# / MD / UB# | Reset / boot mode control | Hardware reset with glitch filter; MD pin selects single-chip mode; UB#/UPSEL configure USB bootloader entry - enables field firmware recovery. |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | Direct hardware linking of 35 event sources to 16 target modules - eliminates CPU polling and ISR overhead for time-critical peripheral coordination. |
| Background Operation (BGO) | Data flash erase/write during program execution - enables seamless firmware updates and parameter storage without halting real-time tasks. |
| Realtime Clock (RTC) | Calendar mode with leap-year correction, alarm/periodic interrupts, and software-standby wake-up - provides accurate timekeeping for logging and scheduling. |
| Low-Power Modes | Software standby (0.44 µA), deep sleep, and sleep modes with configurable wake sources - extends battery life in portable and remote sensor applications. |
| CRC Calculator | Configurable polynomial (X⁸+X²+X+1, X¹⁶+X¹⁵+X²+1, X¹⁶+X¹²+X⁵+1) with LSB/MSB alignment - accelerates firmware integrity checks and communication frame validation. |
| IEC 60730 Support | Integrated CAC, IWDT, RAM test assist functions - simplifies functional safety certification for household appliance and industrial control applications. |
Applications
| Industrial Sensor Node | USB Human Interface Device |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and motion data for cloud upload via USB-CDC. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, USB CDC class stack, and low-power state management with RTC-triggered wake cycles. Use Value: Integrated 12-bit ADC, temperature sensor, and USB transceiver eliminate external signal conditioning and PHY ICs - reducing BOM count and PCB area by ≥30%. |
Use Scenario: Programmable mechanical keyboard with per-key RGB lighting, macro support, and firmware update via USB HID. IC Role / Device Role / Timing Role: USB HID device controller managing key matrix scanning, RGB PWM generation (via MTU2), and secure firmware update over USB DFU. Use Value: Dual 8-bit DACs enable analog audio feedback; ELC synchronizes LED fade transitions with keypress events - eliminating jitter in visual response. |
| Smart Home Thermostat | Portable Medical Monitor |
Use Scenario: Wall-mounted HVAC controller with touch interface, ambient sensing, and Zigbee/USB bridge functionality. IC Role / Device Role / Timing Role: System-on-chip handling UI rendering, sensor acquisition (ADC + temp sensor), USB host for configuration dongle, and RTC-based schedule engine. Use Value: 256 KB flash accommodates dual-bank firmware for safe OTA updates; software standby mode extends battery backup runtime to >72 hours. |
Use Scenario: Handheld pulse oximeter acquiring PPG signals, computing SpO₂, and exporting logs via USB mass storage. IC Role / Device Role / Timing Role: Signal processor running real-time FFT and adaptive filtering, driving OLED display, and managing USB MSC class for clinical data export. Use Value: 1.0 µs ADC conversion enables 1 MSPS sampling for high-fidelity PPG capture; on-chip data flash stores >10,000 patient records with wear-leveling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F51116ADFM#3A | Same core, memory, and peripherals; differs only in package (PLQP0064KB-A, 10 × 10 mm, 0.5 mm pitch LFQFP). | Higher pin density, tighter layout constraints, improved thermal dissipation vs. LQFP - preferred for space-constrained designs with thermal margin. | Select R5F51116ADFM#3A when board area is limited and reflow profile supports finer-pitch QFP. |
| R5F51115ADFK#3A | 128 KB flash, 16 KB RAM, same package and peripheral set - reduced memory capacity but identical pinout and clock/peripheral specs. | Cost-optimized variant for simpler firmware stacks (e.g., basic USB HID devices without OTA or complex UI). | Choose R5F51115ADFK#3A when application firmware fits within 128 KB and BOM cost reduction is prioritized over future scalability. |
Compared with R5F51116ADFK#1A, R5F51116ADFM#3A offers identical functionality in a smaller footprint for space-constrained layouts, while R5F51115ADFK#3A provides a lower-cost entry point with halved flash/RAM - both retain full USB, ADC, and timer compatibility without requiring PCB redesign.
Availability
R5F51116ADFK#1A is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, smart home thermostats, and portable medical monitors requiring stable component supply, long-term lifecycle assurance, and Renesas-qualified production traceability.
Supply support for R5F51116ADFK#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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX111 Group, including R5F51116ADFK#1A, was designed for ultra-low-power, USB-enabled embedded control applications demanding high code efficiency, integrated analog peripherals, and functional safety support - targeting industrial automation and consumer health devices.
FAQ
What is the maximum operating frequency and CPU performance of the R5F51116ADFK#1A?
The R5F51116ADFK#1A operates at a maximum frequency of 32 MHz and delivers 50 DMIPS of processing performance. Its RX CPU core features a five-stage pipeline, variable-length instruction encoding, and a 64-bit accumulator - enabling efficient execution of real-time control algorithms and USB protocol stacks without external acceleration.
Does the R5F51116ADFK#1A support USB On-The-Go (OTG) and Battery Charging (BC) specifications?
Yes, the R5F51116ADFK#1A integrates a USB 2.0 full-speed host/function/OTG module compliant with USB BC 1.2. It supports VBUS detection (USB0_VBUS), ID pin sensing (USB0_ID), and overcurrent monitoring (USB0_OVRCURA/B) - enabling dual-role operation and automatic charger type identification in portable devices.
What are the memory resources available on the R5F51116ADFK#1A?
The R5F51116ADFK#1A includes 256 KB of on-chip flash memory (no wait states at 32 MHz), 32 KB of SRAM, and 8 KB of data flash rated for 1,000,000 erase/write cycles. The data flash supports background operation (BGO), allowing concurrent program execution and nonvolatile parameter storage - essential for field-upgradable firmware.
How does the Event Link Controller (ELC) enhance low-power operation in the R5F51116ADFK#1A?
The ELC in the R5F51116ADFK#1A enables direct hardware triggering between 35 event sources and 16 peripheral modules - such as starting ADC conversion upon MTU2 compare match or activating RSPI transfer upon SCI receive completion. This eliminates CPU wake-ups and ISR latency, reducing active time and extending software standby mode efficiency.
What package type and pin count does the R5F51116ADFK#1A use?
The R5F51116ADFK#1A uses the PLQP0064GA-A package: a 64-pin LQFP with 14 × 14 mm body size and 0.8 mm pin pitch. This package is RoHS-compliant, lead-free, and compatible with standard surface-mount assembly processes - offering robust thermal and mechanical reliability for industrial applications.
R5F51116ADFK#1A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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 OTG
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 46
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 14x12b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F51116ADFK#1A FAQ
1.How can I place an order for R5F51116ADFK#1A through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F51116ADFK#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 R5F51116ADFK#1A reliable?
The price and inventory of R5F51116ADFK#1A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F51116ADFK#1A is usually 5 days.
3.What payment methods are accepted for R5F51116ADFK#1A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F51116ADFK#1A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F51116ADFK#1A?
R5F51116ADFK#1A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F51116ADFK#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 R5F51116ADFK#1A?
For technical support, including R5F51116ADFK#1A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F51116ADFK#1A requirements.
6.How does Aetrix verify that R5F51116ADFK#1A is sourced from the original manufacturer or authorized distributors?
All R5F51116ADFK#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 R5F51116ADFK#1A meets industry standards.
7.What is the process for return or replacement of R5F51116ADFK#1A?
All R5F51116ADFK#1A units undergo pre-shipment inspection (PSI). If there is an issue with R5F51116ADFK#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 R5F51116ADFK#1A part is unused and in its original packaging.
Return procedure for R5F51116ADFK#1A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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