My Inquiry
My Account
Renesas R5F102A7ASP#50
- Part No.:
- R5F102A7ASP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A7ASP#50.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,769
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F102A7ASP#50 from Renesas Electronics is a 30-pin LSSOP-packaged RL78/G12 16-bit microcontroller designed for ultra-low-power embedded control. It integrates 2 KB data flash, 2 KB RAM, and 16 KB code flash; operates from 1.8 V to 5.5 V; delivers 31 DMIPS at 24 MHz; and supports 8-channel 10-bit A/D conversion with internal temperature sensor-used in battery-powered industrial sensors and smart home controllers.
For engineers reviewing the R5F102A7ASP#50 datasheet, R5F102A7ASP#50 pinout, R5F102A7ASP#50 application, or R5F102A7ASP#50 equivalent, key selection criteria include its 2 KB on-chip data flash with 1M rewrite cycles, 2-channel DMA support, CRC hardware acceleration, and -40°C to +85°C consumer-grade operating range in LSSOP-30 package.
Technical Context
The R5F102A7ASP#50 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction execution time (0.04167 µs at 24 MHz). Its power management includes HALT, STOP, and SNOOZE modes enabling 63 µA/MHz active current draw.
It features a high-accuracy ±1.0% high-speed on-chip oscillator (1–24 MHz), 12-bit interval timer, window watchdog timer, and on-chip voltage detector with 12-level reset/interrupt selection-enabling robust timing and safety-critical operation without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC with 3-stage pipeline, 1 MB address space |
| Flash Memory | 16 KB code flash + 2 KB data flash; supports self-programming and background operation (BGO) |
| RAM Size | 2 KB on-chip RAM; sufficient for real-time control stacks and buffer handling |
| Operating Voltage | 1.8 V to 5.5 V single supply; enables direct Li-ion, AA/AAA, or USB bus operation |
| A/D Converter | 10-bit resolution, 8 input channels, internal reference (1.45 V) and temperature sensor |
| Timers | 8-channel 16-bit TAU timer, 12-bit interval timer, and window watchdog timer |
| Serial Interfaces | 1 UART, 1 simplified SPI (CSI), 1 simplified I²C channel; no full I²C master/slave |
| Power Modes | HALT (63 µA/MHz), STOP (0.52 µA), SNOOZE (low-latency wake-up with peripheral activity) |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, surface-mountable with exposed pad thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10/SCK00/SCL00 | Serial clock I/O | Configurable as CSI00 clock or I²C00 clock; supports peripheral interface flexibility |
| P11/SI00/RxD0/SDA00 | Serial data input / UART receive / I²C data | Shared function pin enabling UART or simplified I²C slave communication |
| P12/SO00/TxD0/TOOLTxD | Serial data output / UART transmit / debug TX | Supports firmware upload via on-chip debug interface without external level shifter |
| P20/ANI0/AVREFP | Analog input / A/D reference positive | Provides stable analog reference for precision 10-bit conversions across all channels |
| P21/ANI1/AVREFM | Analog input / A/D reference negative | Enables differential measurement mode and ratiometric sensing accuracy |
| REGC | Voltage regulator capacitor terminal | Requires 0.47–1 µF capacitor to VSS for internal LDO stability and noise immunity |
| RESET | Active-low reset input | Accepts external reset signal or internal POR/LVD-generated reset pulse |
| X1/X2 | Crystal oscillator inputs | Supports 1–20 MHz crystal or ceramic resonator for precise system timing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 µA/MHz active current enables multi-year battery life in wireless sensor nodes |
| On-chip data flash | 2 KB with 1,000,000 write/erase cycles supports firmware updates and parameter logging |
| Hardware CRC accelerator | Dedicated circuit reduces CPU load during firmware integrity checks and communication packet validation |
| RAM guard & SFR guard | Memory protection prevents accidental overwrites of critical control registers and stack memory |
| Programmable clock/buzzer output | PCLBUZ0/PCLBUZ1 generate precise 2.44 kHz–10 MHz clocks or audible tones without timer resource usage |
| Key interrupt support | 10-key return (KR0–KR9) inputs enable low-power wake-up from deep sleep on mechanical button press |
Applications
| Smart Thermostat Control | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered HVAC controller monitoring ambient temperature, humidity, and occupancy via analog and digital sensors. IC Role / Device Role / Timing Role: Main system controller executing PID loop, managing display, and communicating via UART to Wi-Fi module. Use Value: 2 KB data flash stores calibration coefficients and runtime logs; 10-bit A/D achieves ±0.5°C temperature accuracy with internal sensor. | Use Scenario: DIN-rail mounted vibration/temperature monitor in factory automation with RS-485 backhaul. IC Role / Device Role / Timing Role: Real-time acquisition engine with 8-channel analog front-end and deterministic UART transmission scheduling. Use Value: 2-channel DMA offloads ADC-to-memory transfers; SNOOZE mode enables sub-10 µs wake-up latency for event-triggered sampling. |
| Wireless Remote Control | Home Appliance MCU |
Use Scenario: IR/RF remote with touch keys, LED feedback, and low-battery detection. IC Role / Device Role / Timing Role: System-on-chip managing key scan, buzzer tone generation, and RF transceiver control. Use Value: PCLBUZ0 generates user feedback tones; KR0–KR9 support matrix scanning with no external GPIO expander needed. | Use Scenario: Washing machine main board controlling motor drivers, water valves, and user interface. IC Role / Device Role / Timing Role: Safety-certified control unit performing watchdog supervision, voltage monitoring, and fault-safe shutdown. Use Value: On-chip LVD with 12-level threshold selection enables precise brown-out detection; CRC engine validates firmware before boot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A8ASP#50 | 8 KB code flash, 512 B RAM, same 2 KB data flash and peripherals | Lower memory footprint suits simpler control tasks without OTA update needs | Select when application code size < 8 KB and cost sensitivity outweighs future scalability |
| R5F103A7ASP#50 | No data flash, no DMA, no CRC, reduced serial interface count (no simplified I²C) | Targeted at cost-optimized designs where parameter storage and peripheral offload are unnecessary | Choose only if data logging, background flash writes, and hardware CRC are not required |
Compared with R5F102A8ASP#50 and R5F103A7ASP#50, the R5F102A7ASP#50 uniquely balances full peripheral set-including 2 KB data flash, 2-channel DMA, and hardware CRC-with 16 KB code capacity, making it optimal for field-upgradable, safety-aware embedded systems requiring long-term data retention and deterministic real-time response.
Availability
R5F102A7ASP#50 is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home controllers, and battery-powered remote controls requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for R5F102A7ASP#50 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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G12 product line was engineered for ultra-low-power general-purpose embedded control-emphasizing energy efficiency, integrated safety features (CRC, RAM/SFR guard), and seamless migration from legacy 8-bit platforms.
FAQ
What is the maximum operating frequency and corresponding DMIPS rating for the R5F102A7ASP#50?
The R5F102A7ASP#50 operates up to 24 MHz using its high-speed on-chip oscillator and delivers 31 DMIPS at that speed. Its minimum instruction execution time is 0.04167 µs under high-speed conditions. The device also supports lower-frequency modes (1–8 MHz in LS mode) for further power reduction while maintaining full peripheral functionality.
Does the R5F102A7ASP#50 include on-chip data flash memory, and what is its endurance specification?
Yes, the R5F102A7ASP#50 includes 2 KB of on-chip data flash memory rated for 1,000,000 erase/write cycles (typical) across the full 1.8–5.5 V operating range. It supports background operation (BGO), allowing program execution from code flash while rewriting data flash-critical for firmware-over-the-air and runtime parameter storage in the R5F102A7ASP#50.
What are the supported analog input capabilities of the R5F102A7ASP#50?
The R5F102A7ASP#50 integrates an 8-channel, 10-bit A/D converter with selectable internal reference voltage (1.45 V) and built-in temperature sensor. Input channels include ANI0–ANI3 and ANI16–ANI19. Differential measurement is supported via AVREFP/AVREFM pins, enabling ratiometric sensing and improved noise rejection in noisy industrial environments.
How many serial communication interfaces does the R5F102A7ASP#50 provide, and what types are supported?
The R5F102A7ASP#50 provides three serial interfaces: one UART channel (RxD0/TxD0), one simplified SPI (CSI00), and one simplified I²C (IIC00). Unlike higher-pin-count variants, it does not support multiple UARTs or full I²C master/slave-making it ideal for point-to-point sensor or actuator communication rather than complex bus topologies.
What power-saving modes are available on the R5F102A7ASP#50, and what are their typical current draws?
The R5F102A7ASP#50 offers HALT (63 µA/MHz), STOP (0.52 µA), and SNOOZE modes. SNOOZE allows selected peripherals (e.g., A/D, UART) to remain active while CPU sleeps, enabling fast wake-up (<10 µs) for event-driven operation. All modes retain RAM content and support wake-up via interrupts, key return, or external reset-essential for energy-constrained R5F102A7ASP#50 deployments.
R5F102A7ASP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- CSI, I2C, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 23
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F102A7ASP#50 FAQ
1.How can I place an order for R5F102A7ASP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A7ASP#50 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 R5F102A7ASP#50 reliable?
The price and inventory of R5F102A7ASP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A7ASP#50 is usually 5 days.
3.What payment methods are accepted for R5F102A7ASP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A7ASP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A7ASP#50?
R5F102A7ASP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A7ASP#50 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 R5F102A7ASP#50?
For technical support, including R5F102A7ASP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A7ASP#50 requirements.
6.How does Aetrix verify that R5F102A7ASP#50 is sourced from the original manufacturer or authorized distributors?
All R5F102A7ASP#50 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 R5F102A7ASP#50 meets industry standards.
7.What is the process for return or replacement of R5F102A7ASP#50?
All R5F102A7ASP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A7ASP#50, 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 R5F102A7ASP#50 part is unused and in its original packaging.
Return procedure for R5F102A7ASP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F102A7ASP#50 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…
