Renesas R5F100ACASP#70
- Part No.:
- R5F100ACASP#70
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 30-LSSOP (0.240", 6.10mm Width)
- Datasheet:
-
R5F100ACASP#70.pdf
- Description:
- 16BIT MCU RL78/G13 32K LSSOP30 -
- Quantity:
- Payment:

- Shipping:

Inventory:2,972
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F100ACASP#70 from Renesas is a 30-pin LSSOP-packaged 16-bit RL78/G13 microcontroller with 16 KB flash, 2 KB RAM, and 4 KB data flash, operating from 1.6 V to 5.5 V at up to 32 MHz (41 DMIPS), featuring ultra-low-power modes (0.57 μA RTC+LVD), 10-bit ADC (26 channels), and integrated real-time clock for battery-powered industrial control and sensor interface applications.
For engineers reviewing the R5F100ACASP#70 datasheet, R5F100ACASP#70 pinout, R5F100ACASP#70 application, or R5F100ACASP#70 equivalent, key selection criteria include its 30-pin LSSOP-30 package, 16 KB code flash + 4 KB data flash allocation, 10-bit ADC with 26 input channels, RTC calendar/alarm functionality, and support for LIN-bus UART in low-voltage embedded systems.
Technical Context
The R5F100ACASP#70 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, enabling instruction execution times from 0.03125 μs (32 MHz high-speed mode) to 30.5 μs (32.768 kHz subsystem clock). It integrates a 12-bit interval timer, 16-bit timers (8–16 channels), and background operation for data flash rewriting while executing program code.
Its power management includes HALT, STOP, and SNOOZE modes, on-chip POR and LVD (14 selectable levels), and a high-accuracy ±1.0% on-chip oscillator (32 MHz max). Serial interfaces comprise up to 4 UART/LIN channels, 10 I²C/Simplified I²C channels, and 8 CSI (SPI-compatible) channels - all configurable per pin function mapping in the 30-pin LSSOP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 1 MB address space |
| Max Clock Speed | 32 MHz (41 DMIPS); supports 32.768 kHz RTC clock source |
| Memory | 16 KB code flash (1 KB block size), 4 KB data flash (1M rewrite cycles), 2 KB RAM |
| ADC | 10-bit resolution, 26 analog input channels, internal 1.45 V reference and temperature sensor |
| Power Modes | HALT (66 μA/MHz), STOP (0.57 μA with RTC+LVD active), SNOOZE |
| Operating Voltage | 1.6 V to 5.5 V; supports direct interface with 1.8/2.5/3.0 V logic devices |
| Temperature Range | −40°C to +85°C (A-grade industrial/consumer qualification) |
Pinout & Package
Package: 30-pin plastic LSSOP (7.62 mm, 0.65-mm pitch), 10.0 × 4.4 mm footprint, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10 | SCK00 / SCL00 | Serial clock for CSI0 or I²C0 master/slave communication |
| P11 | SI00 / RxD0 / TOOLRxD / SDA00 | Serial input/data line for CSI0, UART0 receive, debug interface, or I²C0 data |
| P12 | SO00 / TxD0 / TOOLTxD | Serial output/transmit line for CSI0, UART0, or debug interface |
| P13 | INTP0 / PPG0 | External interrupt input or programmable pulse generator output |
| P20 | ANI0 / AVREFP | Analog input channel 0 or positive reference voltage for ADC |
| P21 | ANI1 / AVREFM | Analog input channel 1 or negative reference voltage for ADC |
| P22 | ANI2 | Analog input channel 2 (shared with comparator and op-amp inputs) |
| P30 | CLKP / CLKOUT | External clock input or programmable system clock output signal |
| VDD | Power Supply | Main supply (1.6–5.5 V); powers core, peripherals, and I/O |
| VSS | GND | Digital ground reference for all circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.57 μA in STOP mode with RTC + LVD active enables multi-year battery life in metering |
| Data flash BGO | Background operation allows concurrent code execution and 4 KB data flash rewrite (1M cycles) |
| Integrated RTC | Calendar function (99-year range), alarm, and clock correction eliminates external RTC IC |
| LIN-bus UART support | Hardware LIN protocol handling in UART mode reduces CPU overhead in automotive body electronics |
| Multi-voltage I/O | Direct interface with 1.8 V, 2.5 V, and 3.0 V peripherals without level shifters |
| On-chip debug | Fully integrated debug interface with flash shield window and boot swap for secure firmware updates |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
|
Use Scenario: Battery-powered water/gas meter with hourly pulse counting, temperature sensing, and periodic RF transmission. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RTC-based wake-up scheduling, LIN/UART comms, and low-power state transitions. Use Value: 0.57 μA STOP mode extends 10-year battery life; integrated RTC and 26-channel ADC reduce BOM count by 3 components. |
Use Scenario: Wireless vibration sensor node in predictive maintenance systems, logging acceleration data and transmitting via BLE gateway. IC Role / Device Role / Timing Role: Data acquisition engine with 10-bit ADC oversampling, DMA-driven sensor reads, and precise timestamping via RTC calendar. Use Value: Background data flash writes preserve logs during active sensing; 1.6–5.5 V operation tolerates wide battery discharge curves. |
| Home Appliance Control | Automotive Body Controller |
|
Use Scenario: Washing machine main control board requiring motor timing, user interface polling, and safety monitoring. IC Role / Device Role / Timing Role: Real-time executor of PWM motor control, key interrupt handler, and LVD-monitored fault detection. Use Value: 16-bit timers with dead-time insertion enable precise BLDC commutation; on-chip BCD correction simplifies display driver logic. |
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting with LIN communication to central ECU. IC Role / Device Role / Timing Role: LIN slave node with hardware UART framing, GPIO-controlled relays, and watchdog supervision. Use Value: LIN-bus UART mode ensures protocol compliance without software bit-banging; −40°C to +85°C rating meets automotive AEC-Q100 ambient requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100BCASP#70 | 32 KB code flash, 2 KB RAM, same 30-pin LSSOP package and peripheral set | Higher flash capacity supports larger firmware with OTA update partitions | Select when >16 KB application code or dual-bank flash update capability is required |
| R5F101ACASP#70 | No data flash (0 KB), identical core, memory map, and I/O configuration otherwise | Eliminates data logging or parameter storage needs; reduces cost where EEPROM is external | Choose when non-volatile parameter storage is handled externally or unnecessary |
Compared with R5F100BCASP#70 and R5F101ACASP#70, the R5F100ACASP#70 uniquely balances minimal code size (16 KB), essential data retention (4 KB data flash), and ultra-low-power RTC operation - making it optimal for cost-sensitive, battery-constrained endpoints where firmware growth is bounded and local parameter persistence is mandatory.
Availability
R5F100ACASP#70 is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home appliance control, and automotive body electronics requiring stable component supply across long production lifecycles.
Supply support for R5F100ACASP#70 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 industrial, automotive, and IoT markets.
The RL78/G13 product line delivers true low-power 16-bit MCU performance for general-purpose embedded applications, emphasizing energy efficiency, integration, and ease of migration within the RL78 family.
FAQ
What is the maximum operating frequency and associated performance of the R5F100ACASP#70?
The R5F100ACASP#70 operates at up to 32 MHz with a peak performance of 41 DMIPS. Its RL78 CPU core achieves this using a 3-stage pipeline and supports dynamic clock switching between high-speed (32 MHz) and ultra-low-speed (32.768 kHz) modes. The 32 MHz operation enables fast ADC sampling, real-time control loops, and LIN bus timing compliance - all while maintaining 66 μA/MHz active current consumption.
Does the R5F100ACASP#70 include an integrated real-time clock (RTC), and what functions does it support?
Yes, the R5F100ACASP#70 includes a fully integrated RTC with calendar functionality covering 99 years, alarm generation, and hardware clock correction. It operates independently in STOP mode with only 0.57 μA current draw when powered with RTC and LVD enabled. This eliminates the need for external RTC ICs in time-stamped data logging, scheduled wake-up, and metering applications - all managed directly by the R5F100ACASP#70.
How much flash memory does the R5F100ACASP#70 provide, and what are its programming characteristics?
The R5F100ACASP#70 provides 16 KB of on-chip code flash memory (organized in 1 KB blocks) and 4 KB of dedicated data flash memory. The data flash supports background operation (BGO), allowing program execution from main flash while rewriting data flash. It guarantees 1,000,000 write/erase cycles at VDD = 1.8–5.5 V and includes flash shield window and boot swap functions for secure firmware updates - all implemented within the R5F100ACASP#70 without external components.
What analog capabilities does the R5F100ACASP#70 offer, and how many channels are available?
The R5F100ACASP#70 features a 10-bit successive-approximation ADC with up to 26 analog input channels. It includes an internal 1.45 V reference voltage and an integrated temperature sensor usable in HS (high-speed) mode. Input channels support differential measurement, and the ADC operates across the full 1.6–5.5 V supply range - enabling direct sensor interfacing (e.g., thermistors, pressure bridges, battery voltage monitoring) without external signal conditioning in the R5F100ACASP#70.
Is the R5F100ACASP#70 pin-compatible with other RL78/G13 variants in the same package?
Yes, the R5F100ACASP#70 is pin-compatible with all other 30-pin LSSOP RL78/G13 variants including R5F100BCASP#70, R5F100CCASP#70, and R5F101ACASP#70. Pin functions, power domains, and peripheral mappings are identical across the 30-pin LSSOP family - enabling hardware reuse and firmware scalability. This compatibility allows seamless migration to higher-flash or data-flash-free versions without PCB redesign for the R5F100ACASP#70 footprint.
R5F100ACASP#70 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 30-LSSOP (0.240", 6.10mm Width)
- Series:
- RL78/G13
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 21
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 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:
R5F100ACASP#70 FAQ
1.How can I place an order for R5F100ACASP#70 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F100ACASP#70 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 R5F100ACASP#70 reliable?
The price and inventory of R5F100ACASP#70 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F100ACASP#70 is usually 5 days.
3.What payment methods are accepted for R5F100ACASP#70?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F100ACASP#70 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F100ACASP#70?
R5F100ACASP#70 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F100ACASP#70 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 R5F100ACASP#70?
For technical support, including R5F100ACASP#70 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F100ACASP#70 requirements.
6.How does Aetrix verify that R5F100ACASP#70 is sourced from the original manufacturer or authorized distributors?
All R5F100ACASP#70 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 R5F100ACASP#70 meets industry standards.
7.What is the process for return or replacement of R5F100ACASP#70?
All R5F100ACASP#70 units undergo pre-shipment inspection (PSI). If there is an issue with R5F100ACASP#70, 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 R5F100ACASP#70 part is unused and in its original packaging.
Return procedure for R5F100ACASP#70:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F100ACASP#70 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…

