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Renesas R5F102A7ASP#30
- Part No.:
- R5F102A7ASP#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A7ASP#30.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,429
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Product details
Overview
R5F102A7ASP#30 from Renesas Electronics is a 30-pin LSSOP ultra-low-power 16-bit RL78/G12 microcontroller designed for cost-sensitive consumer and industrial embedded control. It integrates 2 KB code flash, 2 KB data flash, 256 B RAM, an 8-channel 10-bit A/D converter, dual UART/CSI/I²C serial interfaces, 8-channel TAU timer, and operates from 1.8 V to 5.5 V with true low-power modes (HALT/STOP/SNOOZE) - enabling battery-powered sensor nodes and smart home peripherals.
For engineers reviewing the R5F102A7ASP#30 datasheet, R5F102A7ASP#30 pinout, R5F102A7ASP#30 application, or R5F102A7ASP#30 equivalent, key selection criteria include its 30-pin LSSOP package with REGC regulator capacitor support, 2 KB data flash with background operation (BGO), 2-channel DMA, CRC hardware acceleration, and -40°C to +85°C industrial-grade temperature rating.
Technical Context
The R5F102A7ASP#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting minimum instruction execution time of 0.04167 µs at 24 MHz (high-speed on-chip oscillator). Its memory subsystem includes 2 KB code flash (1 KB block size), 2 KB data flash with 1,000,000 rewrite cycles, and 256 B RAM - all accessible under single-supply 1.8–5.5 V operation.
Peripheral integration centers on mixed-signal control: 8-channel 10-bit A/D converter with internal 1.45 V reference and temperature sensor; 8-channel 16-bit timer (TAU) with PWM capability; dual UART (UART0, UART1), dual simplified SPI (CSI00, CSI11), and dual simplified I²C (IIC00, IIC11); plus safety features including CRC calculation unit, RAM guard, and SFR guard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RL78 16-bit CISC CPU with 3-stage pipeline; enables deterministic real-time control with 31 DMIPS @ 24 MHz |
| Memory | 2 KB code flash (1 KB erase blocks), 2 KB data flash (BGO enabled), 256 B RAM - supports firmware updates and parameter storage without external EEPROM |
| Power Supply | 1.8 V to 5.5 V single supply; allows direct interface with Li-ion, AA/AAA, or 3.3 V/5 V system rails |
| A/D Converter | 10-bit resolution, 8 input channels, internal 1.45 V reference, integrated temperature sensor - eliminates need for external references in thermal monitoring |
| Timers & PWM | 8-channel 16-bit TAU timer with programmable output compare; supports up to 7 independent PWM outputs for motor/solenoid control |
| Serial Interfaces | 2 × UART, 2 × simplified SPI (CSI), 2 × simplified I²C - enables concurrent communication with sensors, displays, and host controllers |
| Operating Temperature | -40°C to +85°C (A-grade); qualified for consumer and industrial ambient environments without derating |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, with exposed pad not present. Requires 0.47–1 µF capacitor between REGC and VSS for voltage regulator stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P20/ANI0/AVREFP | Analog reference positive / A/D input 0 | Provides stable AVREFP for A/D conversion; doubles as first analog input channel |
| P21/ANI1/AVREFM | Analog reference negative / A/D input 1 | Completes differential reference pair; usable as second analog input |
| P22/ANI2, P23/ANI3 | Analog inputs 2–3 | Additional dedicated analog inputs with shared VDD-referenced range |
| P00/ANI17/TI00/TxD1, P01/ANI16/RxD1 | UART1 TX/RX + analog inputs 16–17 | Shared pins enable compact UART-based sensor telemetry while retaining analog sensing |
| P10/SCK00/SCL00, P11/SI00/RxD0/SDA00, P12/SO00/TxD0 | CSI00/IIC00 primary interface | Full 3-wire simplified SPI or 2-wire I²C bus for peripheral expansion |
| P13/TxD2/SO20/SDAA0, P14/RxD2/SI20/SDA20 | UART2 + CSI20 + IIC20 secondary interface | Dedicated second serial domain for isolated communication or redundant sensor links |
| P31/TI03/TO03/INTP4/PCLBUZ0 | Timer input/output + interrupt + buzzer clock | Multi-function pin supports timing capture, PWM output, external event detection, and audible feedback |
| REGC | Voltage regulator capacitor terminal | Mandatory 0.47–1 µF decoupling to VSS ensures stable internal LDO operation |
| RESET | Active-low reset input | Accepts standard push-button or supervisor IC reset signals; supports on-chip POR/LVD |
| X1/X2 | Crystal oscillator inputs | Supports 1–20 MHz crystal/ceramic resonator for precise timing-critical applications |
Key Features
| Feature | Design Value |
|---|---|
| True low-power operation | 63 μA/MHz active current; HALT/STOP/SNOOZE modes reduce consumption to sub-μA levels for extended battery life |
| Data flash with BGO | 2 KB data flash supports background rewriting during program execution - enables seamless over-the-air parameter updates |
| Hardware CRC accelerator | Dedicated CRC calculation unit offloads checksum computation from CPU - improves firmware integrity verification speed by >10× |
| RAM and SFR guard | On-chip memory protection prevents accidental overwrite of critical variables or register settings - enhances system robustness |
| Multi-voltage I/O | I/O ports tolerate 1.8 V, 2.5 V, and 3 V logic levels - simplifies interfacing with mixed-voltage sensor ecosystems |
Applications
| Smart Home Sensor Node | Industrial Panel Controller |
|---|---|
Use Scenario: Battery-powered temperature/humidity/motion sensor with BLE gateway interface. IC Role / Device Role / Timing Role: Main system controller managing A/D sampling, sensor fusion, low-power scheduling, and UART-to-BLE bridge timing. Use Value: 2 KB data flash stores calibration coefficients and event logs; SNOOZE mode extends 2-year battery life; 8-channel A/D supports multi-sensor integration. |
Use Scenario: Local HMI controller for HVAC or lighting systems with button/keypad input and LED display. IC Role / Device Role / Timing Role: Real-time keypad scanner, LED driver, and RS-485 Modbus slave using UART1/UART2. Use Value: Key return (KR) inputs simplify matrix keypad design; dual UARTs enable simultaneous host comms and fieldbus; -40°C to +85°C rating ensures reliability in unconditioned enclosures. |
| White Goods Motor Control | Portable Medical Monitor |
Use Scenario: Fan/pump speed controller in refrigerator or air purifier with thermal protection. IC Role / Device Role / Timing Role: Closed-loop motor driver using TAU PWM outputs and A/D feedback from thermistor and current sense. Use Value: 8-channel TAU provides independent PWM for multi-phase drive; on-chip temperature sensor enables self-protection; 2 KB data flash retains runtime diagnostics. |
Use Scenario: Handheld pulse oximeter or blood glucose meter with analog front-end and LCD interface. IC Role / Device Role / Timing Role: Signal acquisition controller handling photodiode A/D, buzzer alerts, and LCD refresh via PCLBUZ0 clock output. Use Value: Integrated 10-bit A/D with internal reference eliminates external precision references; low-voltage 1.8 V operation extends coin-cell battery life; small 30-pin LSSOP fits compact PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A8ASP#30 | 8 KB code flash, 768 B RAM, same 2 KB data flash and peripherals | Requires larger firmware image; suitable for applications needing bootloader + application partitioning | Select when firmware exceeds 2 KB and requires field-upgradable architecture |
| R5F103A7ASP#30 | No data flash, no DMA, no CRC, no RAM/SFR guard; same pinout and core | Lacks nonvolatile parameter storage and hardware safety features; lower cost for basic control only | Choose only if data flash, BGO, and memory protection are unnecessary and BOM cost is primary constraint |
Compared with R5F102A7ASP#30, R5F102A8ASP#30 offers scalable code space for complex firmware, while R5F103A7ASP#30 sacrifices data retention and safety features for minimal cost - making R5F102A7ASP#30 the optimal balance of embedded functionality, reliability, and footprint for mid-tier consumer/industrial designs.
Availability
R5F102A7ASP#30 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial panel controllers, white goods motor control, and portable medical monitors requiring stable component supply across production lifecycles.
Supply support for R5F102A7ASP#30 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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with over 40 years of microcontroller innovation.
The RL78/G12 product line delivers ultra-low-power, cost-optimized 16-bit MCUs targeting battery-operated and energy-conscious applications - emphasizing integrated analog, flexible serial connectivity, and hardware safety features for reliable edge control.
FAQ
What is the maximum operating frequency of the R5F102A7ASP#30?
The R5F102A7ASP#30 supports a maximum high-speed on-chip oscillator frequency of 24 MHz, delivering 31 DMIPS performance. When using an external crystal (X1/X2), the main system clock operates up to 20 MHz. Both configurations maintain full functionality across the 1.8–5.5 V supply range and -40°C to +85°C temperature grade.
Does the R5F102A7ASP#30 include data flash memory?
Yes, the R5F102A7ASP#30 integrates 2 KB of on-chip data flash memory with background operation (BGO) support, enabling concurrent program execution and data rewriting. It guarantees 1,000,000 rewrite cycles at VDD = 1.8–5.5 V and supports flash shield window protection for secure firmware updates.
What safety features are implemented in the R5F102A7ASP#30?
The R5F102A7ASP#30 includes hardware CRC calculation, RAM guard, and SFR guard - all confirmed in the RL78/G12 datasheet for R5F102-series devices. These features detect and prevent unintended memory corruption, enhancing reliability in industrial and medical applications where functional safety is critical.
How many analog input channels does the R5F102A7ASP#30 support?
The R5F102A7ASP#30 supports 8 analog input channels: ANI0 through ANI3 and ANI16 through ANI19. All channels operate with 10-bit resolution and share the internal 1.45 V reference voltage, eliminating the need for external reference components in most sensing applications.
What is the purpose of the REGC pin on the R5F102A7ASP#30?
The REGC pin on the R5F102A7ASP#30 connects to an external 0.47–1 µF capacitor tied to VSS, stabilizing the internal voltage regulator that powers the analog circuitry. This capacitor is mandatory for proper A/D converter accuracy and oscillator stability - omission causes erratic analog behavior and potential reset failures.
R5F102A7ASP#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G12
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- 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#30 FAQ
1.How can I place an order for R5F102A7ASP#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A7ASP#30 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#30 reliable?
The price and inventory of R5F102A7ASP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A7ASP#30 is usually 5 days.
3.What payment methods are accepted for R5F102A7ASP#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A7ASP#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A7ASP#30?
R5F102A7ASP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A7ASP#30 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#30?
For technical support, including R5F102A7ASP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A7ASP#30 requirements.
6.How does Aetrix verify that R5F102A7ASP#30 is sourced from the original manufacturer or authorized distributors?
All R5F102A7ASP#30 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#30 meets industry standards.
7.What is the process for return or replacement of R5F102A7ASP#30?
All R5F102A7ASP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A7ASP#30, 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#30 part is unused and in its original packaging.
Return procedure for R5F102A7ASP#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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