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Renesas R5F12048ASP#50
- Part No.:
- R5F12048ASP#50
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 16-SSOP (0.173", 4.40mm Width)
- Datasheet:
-
R5F12048ASP#50.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:362
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Product details
Overview
R5F12048ASP#50 from Renesas Electronics is an 16-pin, 8 KB flash, 1 KB RAM RL78/G15 16-bit microcontroller with integrated 8/10-bit ADC (7 channels), dual simplified I²C and SPI interfaces, UART, 8-channel 16-bit timer array, and high-speed on-chip oscillator (1–16 MHz). It operates from 2.4 V to 5.5 V and supports industrial temperature range (−40°C to +105°C), targeting embedded control in HVAC sensors, motor-driven appliances, and industrial I/O modules.
For engineers reviewing the R5F12048ASP#50 datasheet, R5F12048ASP#50 pinout, R5F12048ASP#50 application, or R5F12048ASP#50 equivalent, key selection considerations include its SSOP-16 package, 7-channel analog input capability, programmable clock/buzzer output (PCLBUZ0), selectable power-on-reset voltage levels, and support for background data flash writes only during HALT mode-not BGO.
Technical Context
The R5F12048ASP#50 implements the RL78-S2 CPU core with a 3-stage pipeline CISC architecture, 1 MB address space, and minimum instruction execution time of 0.0625 μs at 16 MHz. Its memory subsystem includes 8 KB code flash (1 KB block erase), 1 KB data flash (512 B blocks, 1M rewrite cycles), and 1 KB SRAM.
Peripherals are organized around a unified interrupt controller supporting 16 internal and 8 external vectored sources, dual serial array units (SAU0) enabling simultaneous CSI00/CSI01 and IIC00/IIC01 operation, and TAU0 timer array with flexible PWM output mapping across up to 6 pins including TI00–TI07 and TO00–TO07.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78-S2 16-bit CISC CPU with 3-stage pipeline, 1 MB address space |
| Flash Memory | 8 KB code flash, 1 KB data flash - supports self-programming without boot swap |
| RAM | 1 KB on-chip SRAM - used for stack, variables, and peripheral register shadowing |
| ADC | 8/10-bit resolution, 7-channel analog input (ANI0–ANI6), internal 0.815 V reference |
| Oscillators | High-speed on-chip oscillator (1–16 MHz, ±1.0% @ −20°C to +85°C); low-speed 15 kHz oscillator for watchdog |
| I/O & Timers | 14 CMOS I/O pins (including 2 N-ch open-drain), 8-channel 16-bit timer array (TAU0), 12-bit interval timer |
| Communication | 1 UART channel, 2 simplified I²C (IIC00/IIC01), 2 simplified SPI (CSI00/CSI01), 1 I²C bus interface (IICA0) |
Pinout & Package
Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65-mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | Serial Data Output / Transmit Data | SO00/TxD0 - primary UART TX and SAU0 serial output; supports SCK01/SCL01 remapping |
| P01 | Serial Data Input / Receive Data | SI00/RxD0/SDA00 - UART RX, I²C slave data, and SAU0 input; multiplexed with ANI0 |
| P02 | Buzzer/Clock Output / Analog Input | PCLBUZ0/ANI1/VCOUT0 - programmable frequency output up to 10 MHz; also comparator output and analog input |
| P03 | Timer Output / Analog Input | TO00/ANI2/IVCMP0 - hardware PWM output and comparator input; supports interrupt INTP4 |
| P04 | Timer I/O / Analog Input | TI01/TO01/ANI3/IVREF0 - dual-function timer pin with internal reference voltage source for comparator |
| P05 | Timer I/O / Serial Clock | TI02/TO02/SO01 - second SAU0 channel clock/data output; supports SCK00/SCL00 remapping |
| P06 | Serial Data Input / Analog Input | SI01/SDA01/ANI5 - secondary I²C/SAU0 data line; also 5th analog input channel |
| P07 | Serial Clock / Analog Input | SCK01/SCL01/ANI6 - secondary I²C/SAU0 clock line; also 6th analog input channel |
| P40 | Debug Interface / Timer I/O | TOOL0/(TI01/TO01) - dedicated debug data pin; remappable to timer function for flexible prototyping |
| P41 | Timer I/O / Comparator Output | TI03/TO03/VCOUT1 - third timer channel with comparator output VCOUT1 for dual-comparator systems |
| P121/P122 | Crystal Oscillator Inputs | X1/X2 - supports external 1–12 MHz crystal or ceramic resonator for precise timing |
| P125 | Reset Input | RESET - active-low reset with selectable POR threshold (2.25/2.68/3.02/4.45 V) |
| P137 | External Interrupt / Timer Input | INTP0/TI00 - primary external interrupt source and timer input channel 0 |
| VDD | Power Supply | 2.4–5.5 V main supply - powers all digital and analog circuitry including ADC and comparators |
| VSS | Ground | Reference ground for all I/O, analog, and power domains |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 54 µA/MHz active current at TA = 125°C - enables battery-powered industrial sensors with multi-year runtime |
| Flexible clock system | Selectable high-speed on-chip oscillator (1/2/4/8/16 MHz) with ±1.0% accuracy - eliminates external crystal for cost-sensitive designs |
| Robust reset management | 4-level selectable power-on-reset (SPOR) with independent rising/falling thresholds - ensures reliable startup across wide VDD transients |
| Dual-comparator support | 2 independent comparators (COMP0/COMP1) with selectable internal/external reference - enables overvoltage/undervoltage monitoring and zero-crossing detection |
| Peripheral I/O redirection | PIOR registers allow dynamic remapping of CSI/IIC/UART functions to alternate pins - simplifies PCB layout and enables pin reuse |
| Industrial temperature grade | Rated for −40°C to +105°C (G-grade) - qualified for use in motor drives, factory automation, and building control systems |
Applications
| Smart Thermostat Sensor Node | Industrial Motor Control Module |
|---|---|
Use Scenario: Compact, battery-operated HVAC sensor node measuring ambient temperature, humidity (via I²C sensor), and air flow (via analog pressure sensor). IC Role / Device Role / Timing Role: Main system controller executing sensor fusion, local PID regulation, and wireless transmission scheduling. Use Value: Integrated 7-channel ADC and dual I²C interfaces eliminate external level shifters and reduce BOM count by 3 components versus discrete solutions. |
Use Scenario: Low-cost BLDC motor driver board requiring speed feedback (Hall sensor), current sensing (shunt ADC), and host communication (UART). IC Role / Device Role / Timing Role: Real-time motor commutation controller with synchronized PWM generation and fault monitoring. Use Value: 8-channel TAU0 timer with 6 configurable PWM outputs enables full 3-phase gate drive without external timers or logic. |
| Programmable Power Supply Monitor | Factory Floor I/O Expansion Unit |
Use Scenario: DIN-rail mounted module monitoring 4x DC rail voltages (12 V, 24 V, 48 V, 400 V) and triggering alarms via relay or CAN. IC Role / Device Role / Timing Role: Analog front-end processor and safety-critical decision engine with watchdog supervision. Use Value: Dual comparators with independent references (IVREF0/IVREF1) allow simultaneous high/low threshold detection per rail using single IC. |
Use Scenario: Modular PLC I/O base supporting 8 digital inputs, 4 analog inputs, and RS-485 Modbus RTU communication. IC Role / Device Role / Timing Role: Protocol bridge and signal conditioning hub managing isolation, sampling, and packet framing. Use Value: 14 GPIOs with N-ch open-drain outputs directly drive optocouplers; UART + simplified I²C offloads host MCU from low-level I/O management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F12047ASP#50 | 4 KB code flash, same 16-pin SSOP package, identical peripherals and pinout | Lower memory footprint suitable for simpler firmware (e.g., basic sensor polling without local storage) | Select when application firmware fits within 4 KB and no future code expansion is anticipated |
| R5F12048GSP#50 | Identical electrical and functional specification; differs only in marking (G-grade vs. A-grade temperature screening) | G-grade rated for −40°C to +105°C; A-grade (R5F12048ASP#50) rated for −40°C to +85°C | Choose R5F12048ASP#50 for consumer-grade cost targets where ambient temperature remains ≤85°C |
Compared with R5F12048GSP#50, the R5F12048ASP#50 offers identical functionality at lower qualification cost but excludes extended temperature validation; versus R5F12047ASP#50, it doubles code flash capacity while maintaining full pin and peripheral compatibility-enabling seamless firmware scalability.
Availability
R5F12048ASP#50 is available at Aetrix Electronics and suitable for smart thermostat sensor nodes, industrial motor control modules, and programmable power supply monitors requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F12048ASP#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RL78/G15 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, battery-operated, and industrial embedded applications requiring high integration and robust peripheral sets.
FAQ
What is the maximum operating frequency and instruction execution time of the R5F12048ASP#50?
The R5F12048ASP#50 supports a maximum high-speed on-chip oscillator frequency of 16 MHz, achieving a minimum instruction execution time of 0.0625 μs under those conditions. This timing assumes the RL78-S2 core is configured for high-speed operation with the high-speed oscillator selected and stabilized. The actual execution time may vary if using external clocks or lower oscillator settings.
Does the R5F12048ASP#50 support background data flash rewriting while executing code from main flash?
No, the R5F12048ASP#50 does not support background operation (BGO) for data flash rewriting. During data flash write/erase operations, the CPU cannot execute instructions from code flash memory. Code execution must be halted or relocated to RAM or peripheral registers to safely perform data flash updates.
How many analog input channels does the R5F12048ASP#50 provide, and what is the reference voltage option?
The R5F12048ASP#50 provides 7 analog input channels (ANI0–ANI6) with 8/10-bit resolution. It supports both external reference voltage and internal reference voltage (0.815 V typical) for the ADC, selectable per channel via control registers. Internal reference enables ratiometric measurements without external components.
What packaging and lead finish does the R5F12048ASP#50 use?
The R5F12048ASP#50 is supplied in a 16-pin plastic SSOP package (4.4 × 5.0 mm, 0.65-mm pitch) with lead-free, RoHS-compliant finish. The #50 suffix indicates embossed tape packaging, suitable for automated SMT assembly.
Can the R5F12048ASP#50 operate reliably at 125°C ambient temperature?
No - the R5F12048ASP#50 is rated for A-grade (consumer) operation from −40°C to +85°C. For 125°C operation, Renesas specifies the M-grade variant R5F12048MSP#50. Using R5F12048ASP#50 beyond +85°C ambient violates its qualified temperature range and may result in parametric drift or functional failure.
R5F12048ASP#50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-SSOP (0.173", 4.40mm Width)
- Series:
- RL78/G15
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- CSI, I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.5V
- Data Converters:
- A/D 7x8/10b SAR
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F12048ASP#50 FAQ
1.How can I place an order for R5F12048ASP#50 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F12048ASP#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 R5F12048ASP#50 reliable?
The price and inventory of R5F12048ASP#50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F12048ASP#50 is usually 5 days.
3.What payment methods are accepted for R5F12048ASP#50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F12048ASP#50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F12048ASP#50?
R5F12048ASP#50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F12048ASP#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 R5F12048ASP#50?
For technical support, including R5F12048ASP#50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F12048ASP#50 requirements.
6.How does Aetrix verify that R5F12048ASP#50 is sourced from the original manufacturer or authorized distributors?
All R5F12048ASP#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 R5F12048ASP#50 meets industry standards.
7.What is the process for return or replacement of R5F12048ASP#50?
All R5F12048ASP#50 units undergo pre-shipment inspection (PSI). If there is an issue with R5F12048ASP#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 R5F12048ASP#50 part is unused and in its original packaging.
Return procedure for R5F12048ASP#50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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