My Inquiry
My Account
Renesas R5F102A7DSP#X0
- Part No.:
- R5F102A7DSP#X0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F102A7DSP#X0.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 30LSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,770
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F102A7DSP#X0 from Renesas Electronics is a 30-pin LSSOP packaged RL78/G12 16-bit microcontroller with 4 KB code flash, 2 KB data flash, and 512 B RAM, operating at 1.8–5.5 V and delivering 31 DMIPS at 24 MHz. It integrates an 8-channel 10-bit A/D converter, dual UART/CSI/I²C serial interfaces, 8-channel TAU timer, DMA controller, CRC engine, and ultra-low-power HALT/STOP/SNOOZE modes-designed for battery-powered industrial sensor nodes and smart metering front-ends.
For engineers reviewing the R5F102A7DSP#X0 datasheet, R5F102A7DSP#X0 pinout, R5F102A7DSP#X0 application, or R5F102A7DSP#X0 equivalent, this page delivers verified technical context, exact package mapping (LSSOP-30), validated pin functions per Renesas R01DS0193EJ0250 Rev.2.50, real-world use scenarios, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The R5F102A7DSP#X0 implements the RL78 CPU core with 3-stage pipeline CISC architecture, 1 MB address space, and configurable instruction execution time (0.04167 µs @ 24 MHz high-speed on-chip oscillator). Its power management includes POR, 12-level LVD, and dedicated low-speed 15 kHz watchdog oscillator.
Peripheral integration includes 8-channel TAU timer with PWM capability, SAU0 supporting UART/CSI/I²C in shared resource mode, 2-channel DMA for memory-to-peripheral transfers in 2 clocks, and on-chip debug with flash shield window for secure self-programming-all enabled under HS main clock mode (1–20 MHz external or 1–24 MHz internal oscillator).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC with 3-stage pipeline; enables deterministic real-time control with 31 DMIPS @ 24 MHz |
| Flash Memory | 4 KB code flash + 2 KB data flash; supports background operation (BGO) and 1M rewrite cycles for firmware/data logging |
| RAM | 512 B on-chip RAM; sufficient for stack, variables, and interrupt service routines in compact embedded applications |
| ADC | 10-bit resolution, 8-channel A/D converter with internal 1.45 V reference and temperature sensor; enables direct analog sensing without external references |
| Timers | 8-channel 16-bit TAU timer with PWM output capability; supports motor control, LED dimming, and precise timing intervals |
| Serial Interfaces | 1 UART, 1 CSI (SPI-compatible), 1 I²C channel; provides flexible communication for sensor fusion and host connectivity |
| Power Supply | 1.8–5.5 V operation with 63 μA/MHz active current; supports wide-input battery and energy-harvesting systems |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), RoHS-compliant, moisture sensitivity level (MSL) 3 per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00/SCL00/(TI07/TO07) | Primary SPI clock or I²C clock; configurable via PIOR for multi-protocol reuse on same pin |
| P11 | SI00/RxD0/TOOLRxD/SDA00 | UART receive or I²C data input; supports debug interface (TOOLRxD) without external transceiver |
| P12 | SO00/TxD0/TOOLTxD/(TI05/TO05) | UART transmit or SPI data output; enables in-circuit programming and debug via standard TTL levels |
| P13 | TxD2/SO20/(SDAA0)/(TI04/TO04) | Secondary UART or SPI output; allows concurrent serial protocols without external multiplexing |
| P14 | RxD2/SI20/SDA20/(SCLA0)/(TI03/TO03) | Secondary UART receive or I²C data; supports dual-bus isolation for sensor and actuator domains |
| P15 | PCLBUZ1/SCK20/SCL20/(TI02/TO02) | Buzzer output or secondary SPI clock; enables audible feedback or synchronized peripheral timing |
| P20 | ANI0/AVREFP | Analog input channel 0 with positive reference voltage; used for precision ratiometric measurements |
| P21 | ANI1/AVREFM | Analog input channel 1 with negative reference; supports differential ADC configurations |
| P30 | INTP3/SCK11/SCL11 | External interrupt or secondary SPI clock; provides hardware-triggered wake-up from STOP mode |
| P50 | INTP1/SI11/SDA11 | Interrupt-capable serial data input; enables event-driven sensor polling with minimal CPU overhead |
| P51 | INTP2/SO11 | Interrupt-capable serial data output; supports asynchronous peripheral handshaking |
| REGC | Voltage regulator capacitor terminal | Must connect to VSS via 0.47–1 µF capacitor; stabilizes internal LDO for analog/ADC accuracy |
| RESET | Active-low reset input | Accepts external reset pulse or internal POR/LVD assertion; ensures deterministic startup sequence |
| VDD / VSS | Power supply / ground | Single 1.8–5.5 V rail; eliminates need for external voltage translation in mixed-voltage systems |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 63 μA/MHz active current and SNOOZE mode enable <10 μA system sleep with serial wake-up capability |
| Data flash with BGO | 2 KB data flash supports background rewriting during program execution-critical for over-the-air firmware updates |
| CRC and memory protection | On-chip CRC engine and RAM/SFR guard prevent runtime corruption in safety-critical sensor monitoring |
| Multi-protocol serial flexibility | Shared pins support UART, CSI (SPI), and I²C via software-configurable peripheral redirection (PIOR) |
| Temperature-aware sensing | Integrated temperature sensor and 1.45 V internal reference enable self-calibrating environmental monitoring |
| Secure self-programming | Flash shield window function prevents unauthorized read-out of code flash while allowing field firmware updates |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Sub-metering unit measuring voltage, current, and temperature in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing EEPROM logging, and communicating via RS-485 UART. Use Value: 10-bit ADC with internal reference eliminates external precision references; 2 KB data flash stores calibration coefficients and usage logs across 1M cycles. |
Use Scenario: Wireless vibration sensor node powered by Li-SOCl₂ battery with 10-year lifetime requirement. IC Role / Device Role / Timing Role: Low-power acquisition controller sampling accelerometer data, performing FFT preprocessing, and waking radio on threshold. Use Value: 63 μA/MHz active current and SNOOZE mode reduce average current to <5 μA; integrated temperature sensor enables thermal derating of sampling rate. |
| Home Appliance Control | Medical Diagnostic Device |
|
Use Scenario: Washing machine main board managing motor drive, water valve sequencing, and user interface. IC Role / Device Role / Timing Role: Real-time sequencer coordinating PWM motor control, solenoid timing, and buzzer feedback via PCLBUZ outputs. Use Value: 8-channel TAU timer supports independent PWM generation for motor phases and UI indicators; N-ch open-drain I/O drives 5 V logic directly. |
Use Scenario: Portable blood glucose monitor requiring FDA-compliant firmware integrity and analog signal fidelity. IC Role / Device Role / Timing Role: Safety-certified controller executing ISO 13485-aligned boot validation, ADC sampling, and USB HID reporting. Use Value: On-chip CRC and SFR guard detect memory corruption; 1.45 V internal reference ensures consistent glucose strip reading accuracy across battery discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F102A8DSP#X0 | 8 KB code flash, 768 B RAM, same peripherals and package | Supports larger firmware images and deeper buffer storage for protocol stacks | Select when firmware size exceeds 4 KB or additional RAM is required for complex communication stacks |
| R5F103A7DSP#X0 | No data flash, no DMA, no CRC, reduced serial interface count (1 UART only), same flash/RAM/package | Lacks background data logging and memory protection; suitable for cost-sensitive non-data-logging designs | Select for basic control tasks where data persistence and safety features are unnecessary and BOM cost is critical |
Compared with R5F102A7DSP#X0, R5F102A8DSP#X0 offers scalable code space without changing PCB layout, while R5F103A7DSP#X0 reduces feature set and cost but removes essential data logging and safety capabilities required for certified medical or utility applications.
Availability
R5F102A7DSP#X0 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and portable medical diagnostics requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F102A7DSP#X0 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for automotive, industrial, and IoT markets.
The RL78/G12 product line targets ultra-low-power general-purpose embedded applications, emphasizing energy efficiency, integrated analog peripherals, and secure firmware update capability for battery-operated and safety-aware systems.
FAQ
What is the maximum operating frequency of the R5F102A7DSP#X0?
The R5F102A7DSP#X0 supports a maximum system clock frequency of 24 MHz using its high-speed on-chip oscillator. When using an external crystal (X1), the maximum frequency is 20 MHz at VDD ≥ 2.7 V or 8 MHz at VDD = 1.8–2.4 V. The CPU achieves 31 DMIPS at 24 MHz, with minimum instruction execution time of 0.04167 µs in high-speed mode. This performance is fully specified across the –40°C to +85°C industrial temperature range.
Does the R5F102A7DSP#X0 include data flash memory?
Yes, the R5F102A7DSP#X0 includes 2 KB of on-chip data flash memory. This memory supports background operation (BGO), enabling program execution from code flash while simultaneously rewriting data flash. It is rated for 1,000,000 rewrite cycles at VDD = 1.8–5.5 V and is used for storing calibration data, device configuration, or firmware update payloads-distinct from the 4 KB code flash used for program instructions.
What package type and pin count does the R5F102A7DSP#X0 use?
The R5F102A7DSP#X0 uses a 30-pin plastic LSSOP package (7.62 mm body width, 0.65-mm lead pitch), identified by the "SP" suffix and "#X0" embossed tape packaging specification. This package is RoHS-compliant and moisture sensitivity level (MSL) 3. Pin functions-including 8-channel ADC inputs, dual UART/CSI/I²C interfaces, and REGC for internal regulator stabilization-are fully documented in Renesas datasheet R01DS0193EJ0250 Rev.2.50.
Can the R5F102A7DSP#X0 operate from a 1.8 V supply?
Yes, the R5F102A7DSP#X0 operates across a supply voltage range of 1.8 V to 5.5 V. At 1.8 V, it supports low-speed main (LS) mode up to 8 MHz and maintains full functionality including 10-bit ADC (with internal 1.45 V reference), 8-channel TAU timer, and ultra-low-power STOP/HALT modes. The 63 μA/MHz active current spec is guaranteed across the entire voltage and temperature range, making it suitable for single-cell Li-ion or alkaline battery systems.
What safety and reliability features are built into the R5F102A7DSP#X0?
The R5F102A7DSP#X0 includes CRC calculation hardware, RAM guard, and SFR guard to detect memory corruption during runtime. It also integrates a 12-level voltage detector (LVD) with selectable reset or interrupt output, power-on-reset (POR) circuit, and window watchdog timer with dedicated low-speed oscillator. These features collectively support IEC 61508 SIL-2 and ISO 13849 PL d compliance in safety-critical applications such as medical diagnostics and industrial control.
R5F102A7DSP#X0 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:
- Obsolete
- 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:
R5F102A7DSP#X0 FAQ
1.How can I place an order for R5F102A7DSP#X0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F102A7DSP#X0 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 R5F102A7DSP#X0 reliable?
The price and inventory of R5F102A7DSP#X0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F102A7DSP#X0 is usually 5 days.
3.What payment methods are accepted for R5F102A7DSP#X0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F102A7DSP#X0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F102A7DSP#X0?
R5F102A7DSP#X0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F102A7DSP#X0 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 R5F102A7DSP#X0?
For technical support, including R5F102A7DSP#X0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F102A7DSP#X0 requirements.
6.How does Aetrix verify that R5F102A7DSP#X0 is sourced from the original manufacturer or authorized distributors?
All R5F102A7DSP#X0 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 R5F102A7DSP#X0 meets industry standards.
7.What is the process for return or replacement of R5F102A7DSP#X0?
All R5F102A7DSP#X0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F102A7DSP#X0, 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 R5F102A7DSP#X0 part is unused and in its original packaging.
Return procedure for R5F102A7DSP#X0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F102A7DSP#X0 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…
