Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Renesas R5F1214AASP#30

Name: R5F1214AASP#30
Brand: Renesas
SKU: R5F1214AASP#30
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: R5F1214AASP#30

Manufacturer:: Renesas

Category:: Microcontrollers

Package:: 16-SSOP (0.173", 4.40mm Width)

Datasheet:: R5F1214AASP#30.pdf

Description:: IC MCU 16BIT 16KB FLASH 16SSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,943

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

R5F1214AASP#30 from Renesas Electronics is a 16-pin, 16 KB flash, 2 KB RAM RL78/G16 16-bit microcontroller with integrated capacitive touch sensing (15-channel CTSU), 10-bit A/D converter (11-channel), real-time clock (99-year calendar), and low-power STOP/HALT modes. It operates from 2.4–5.5 V and supports consumer-grade temperature range (−40 to +85°C), targeting battery-powered HMI and sensor interface applications.

For engineers reviewing the R5F1214AASP#30 datasheet, R5F1214AASP#30 pinout, R5F1214AASP#30 application, or R5F1214AASP#30 equivalent, key selection criteria include its LSSOP-16 package compatibility, 16 KB code flash with self-programming, on-chip RTC with alarm, and dual-mode CTSU supporting up to 16 keys in mutual capacitance configuration.

Technical Context

The R5F1214AASP#30 implements the RL78 CPU core with a 3-stage pipeline CISC architecture, enabling instruction execution times adjustable from 0.0625 μs (16 MHz high-speed mode) to 30.5 μs (32.768 kHz ultra-low-speed mode). Its memory subsystem includes 16 KB code flash (1 KB block size), 1 KB data flash (512 B block, 1M rewrite cycles), and 2 KB SRAM.

Peripheral integration centers on mixed-signal flexibility: 16-bit timer array (8 channels), 12-bit interval timer, watchdog timer, 10-bit A/D converter with internal reference (0.815 V), two comparators, and a dedicated capacitive touch sensing unit (CTSU) with self- and mutual-capacitance support - all managed via configurable I/O redirection registers (PIOR).

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	RL78 16-bit CISC with 3-stage pipeline; enables deterministic timing control for real-time sensor polling and HMI response.
Flash Memory	16 KB code flash (1 KB erase blocks); supports in-application programming without boot swap, suitable for field firmware updates.
Data Flash	1 KB data flash (512 B blocks, 32-bit rewrite units); rated for 1,000,000 rewrites at 2.4–5.5 V, ideal for parameter storage in wear-sensitive applications.
Operating Voltage	2.4–5.5 V single supply; eliminates need for external voltage regulators in coin-cell or 3.3/5 V system designs.
Temperature Range	−40°C to +85°C (A-grade); certified for consumer electronics, white goods, and portable industrial controls.
Capacitive Touch	15-channel CTSU with self- and mutual-capacitance modes; supports up to 16-key matrix without external components, reducing BOM cost.
A/D Converter	10-bit resolution, 11-channel input, internal 0.815 V reference; enables direct battery voltage monitoring and analog sensor interfacing without external references.

Pinout & Package

Package: 16-pin plastic SSOP (4.4 × 5.0 mm, 0.65-mm pitch), RoHS-compliant, tray-packaged (#30 specification).

Pin/Terminal	Circuit Role	Design Meaning
P00	TOOLTxD / SO00 / TxD0	Primary UART transmit output; also serves as serial array output and clocked SPI master output - selectable via PIOR register.
P01	TOOLRxD / ANI0 / SI00 / RxD0	Analog input channel 0 and UART receive; dual-role pin enables simultaneous sensor acquisition and serial debug communication.
P02	PCLBUZ0 / ANI1 / VCOUT0 / TSCAP	Capacitive touch sense input with built-in voltage-controlled oscillator output; directly drives CTSU electrode without external RC network.
P03	ANI2 / IVCMP0 / TO00 / RxD1	Comparator input and timer output; supports zero-crossing detection and synchronous serial slave receive on secondary UART.
P04	ANI3 / IVREF0 / TI06 / TxD1	Internal voltage reference input and UART transmit on second serial interface; allows independent power-domain referencing for precision analog measurements.
P40	TOOL0 / INTP2 / TI01 / TO01	Dedicated on-chip debugger interface pin; also provides external interrupt and timer I/O, enabling hardware-triggered wake-up from STOP mode.
P125	RESET / INTP1	Active-low reset input with integrated power-on-reset circuit; configurable reset threshold levels ensure reliable startup across voltage ramps.
VDD / VSS	Power supply / Ground	Dual power pins decouple analog/digital domains; required for stable CTSU operation and noise-immune A/D conversion.

Key Features

Feature	Design Value
Ultra-low-power STOP mode	Enables sub-μA standby current with RTC and CTSU wake-up capability - extends battery life in remote controls and IoT sensors.
On-chip RTC with calendar	99-year date/time tracking, alarm, and clock correction; eliminates external RTC IC and associated crystal, saving PCB area and BOM cost.
Configurable CTSU	Self-capacitance (15 keys) or mutual-capacitance (16-key matrix) operation via software; no external tuning components required.
High-accuracy on-chip oscillator	±1.0% frequency accuracy at 16 MHz (−20 to +85°C); removes need for external crystal in cost-sensitive HMI applications.
Peripheral I/O redirection	PIOR registers allow dynamic remapping of serial, timer, and analog functions to alternate pins - increases layout flexibility and simplifies revision-driven pin reuse.

Applications

Home Appliance Control Panel	Portable Medical Device Interface
Use Scenario: Touch-based user interface on microwave oven or washing machine control board with LED feedback and buzzer alerts. IC Role / Device Role / Timing Role: Primary MCU managing capacitive touch scan, real-time clock for delay timers, buzzer PWM generation, and UART communication with main controller. Use Value: Integrated CTSU and 16 KB flash eliminate external touch controller and enable over-the-air UI updates; 2.4–5.5 V operation supports direct connection to 3.3 V or 5 V system rails.	Use Scenario: Battery-powered glucose meter with touch buttons, LCD backlight control, and analog sensor signal conditioning. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring analog blood sample readings, performing calibration math, and driving segmented LCD via PCLBUZ0 output. Use Value: On-chip 10-bit A/D with internal reference ensures consistent measurement accuracy across battery discharge; STOP mode extends single-battery life beyond 12 months.
Smart Thermostat Keypad	Industrial Sensor Node
Use Scenario: Wall-mounted HVAC thermostat using capacitive touch keys and ambient temperature/humidity sensing. IC Role / Device Role / Timing Role: Dedicated HMI processor handling touch debouncing, RTC-based scheduling, and I²C communication with environmental sensor ICs. Use Value: Mutual-capacitance CTSU supports waterproof overlay design; integrated I²C (1 channel) and simplified I²C (3 channels) simplify multi-sensor connectivity without GPIO bit-banging.	Use Scenario: DIN-rail mounted condition-monitoring node measuring vibration, temperature, and power quality in factory equipment. IC Role / Device Role / Timing Role: Edge-processing MCU executing FFT preprocessing on ADC samples, storing event logs in data flash, and transmitting via UART to gateway. Use Value: 1 MB address space and 2 KB RAM support lightweight DSP routines; 1,000,000-cycle data flash endurance ensures 10+ years of daily log writes at 100 entries/day.

Home Appliance Control Panel

Portable Medical Device Interface

Use Scenario: Touch-based user interface on microwave oven or washing machine control board with LED feedback and buzzer alerts.

IC Role / Device Role / Timing Role: Primary MCU managing capacitive touch scan, real-time clock for delay timers, buzzer PWM generation, and UART communication with main controller.

Use Value: Integrated CTSU and 16 KB flash eliminate external touch controller and enable over-the-air UI updates; 2.4–5.5 V operation supports direct connection to 3.3 V or 5 V system rails.

Use Scenario: Battery-powered glucose meter with touch buttons, LCD backlight control, and analog sensor signal conditioning.

IC Role / Device Role / Timing Role: Sensor interface MCU acquiring analog blood sample readings, performing calibration math, and driving segmented LCD via PCLBUZ0 output.

Use Value: On-chip 10-bit A/D with internal reference ensures consistent measurement accuracy across battery discharge; STOP mode extends single-battery life beyond 12 months.

Smart Thermostat Keypad

Industrial Sensor Node

Use Scenario: Wall-mounted HVAC thermostat using capacitive touch keys and ambient temperature/humidity sensing.

IC Role / Device Role / Timing Role: Dedicated HMI processor handling touch debouncing, RTC-based scheduling, and I²C communication with environmental sensor ICs.

Use Value: Mutual-capacitance CTSU supports waterproof overlay design; integrated I²C (1 channel) and simplified I²C (3 channels) simplify multi-sensor connectivity without GPIO bit-banging.

Use Scenario: DIN-rail mounted condition-monitoring node measuring vibration, temperature, and power quality in factory equipment.

IC Role / Device Role / Timing Role: Edge-processing MCU executing FFT preprocessing on ADC samples, storing event logs in data flash, and transmitting via UART to gateway.

Use Value: 1 MB address space and 2 KB RAM support lightweight DSP routines; 1,000,000-cycle data flash endurance ensures 10+ years of daily log writes at 100 entries/day.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
R5F1214CASP#30	32 KB code flash, same package and peripherals; identical pinout and electrical specs except flash capacity.	Suitable where future firmware expansion or bootloader + application separation is required.	Select when >16 KB flash headroom is needed for feature-rich firmware or secure boot implementation.
R5F1214AGSP#30	Same 16 KB flash but rated for −40°C to +105°C (G-grade); otherwise identical functionality and pinout.	Required for industrial environments exceeding +85°C ambient, such as motor drive control panels.	Choose for extended temperature operation without redesign; no PCB or firmware changes needed beyond qualification testing.

Compared with R5F1214CASP#30 and R5F1214AGSP#30, the R5F1214AASP#30 offers optimal cost/performance balance for consumer-grade applications requiring 16 KB flash and standard temperature range - avoiding over-specification while retaining full peripheral compatibility and pin-for-pin layout reuse.

Availability

R5F1214AASP#30 is available at Aetrix Electronics and suitable for home appliance control panels, portable medical device interfaces, and smart thermostat keypads requiring stable component supply and long-term production continuity.

Supply support for R5F1214AASP#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The RL78/G16 product line delivers ultra-low-power 16-bit MCUs optimized for human-machine interface, sensor fusion, and battery-operated edge devices - combining CTSU, precision analog, and robust real-time control in compact packages.

FAQ

What is the maximum operating frequency and instruction timing of the R5F1214AASP#30?

The R5F1214AASP#30 supports a maximum CPU clock of 16 MHz using the high-speed on-chip oscillator. Its minimum instruction execution time is 0.0625 μs under this condition. The core also supports ultra-low-speed operation at 32.768 kHz (30.5 μs per instruction) for RTC and wake-up tasks. Frequency accuracy is ±1.0% across −20°C to +85°C, making the R5F1214AASP#30 suitable for timing-critical HMI applications without external crystals.

Does the R5F1214AASP#30 support in-system programming and data retention during rewrites?

Yes, the R5F1214AASP#30 supports self-programming of both code and data flash memory without requiring a bootloader swap mechanism. Code flash erases in 1 KB blocks; data flash rewrites occur in 32-bit units with 1,000,000 cycle endurance. During data flash rewriting, code execution halts - background operation (BGO) is not supported. This behavior is fully documented in the R5F1214AASP#30 datasheet Section 1.1 "Features".

How many capacitive touch channels does the R5F1214AASP#30 support, and what configurations are available?

The R5F1214AASP#30 integrates a 15-channel capacitive touch sensing unit (CTSU) supporting both self-capacitance (up to 15 independent keys) and mutual-capacitance (matrix configuration supporting up to 16 keys) modes. Electrode assignment is software-configurable via dedicated CTSU registers, and no external RC components are required. This capability is confirmed in the R5F1214AASP#30 datasheet Section 1.1 "Features" and Table 1-3 "Multiplexed Functions of 16-pin Products".

What serial communication interfaces are available on the R5F1214AASP#30?

The R5F1214AASP#30 provides three simplified SPI (CSI) channels, three UART channels, three simplified I²C channels, and one full I²C channel. Pin multiplexing allows flexible allocation - for example, P00/P01 serve primary UART, while P06/P07 support secondary I²C (SCLA0/SDAA0). All interfaces are accessible via the 16-pin SSOP package, with function selection controlled by the peripheral I/O redirection register (PIOR), as specified in the R5F1214AASP#30 datasheet Section 1.3.2 and Table 1-3.

Is the R5F1214AASP#30 pin-compatible with other RL78/G16 variants in the same package?

Yes, the R5F1214AASP#30 is pin-compatible with all other RL78/G16 16-pin SSOP variants including R5F1214CASP#30 (32 KB flash), R5F1214AGSP#30 (industrial temp), and R5F1214AMSP#30 (extended temp). Pin functions, electrical characteristics, and package dimensions match exactly - only flash size, temperature grade, and ordering suffix differ. This compatibility is explicitly defined in Renesas datasheet R01DS0431EJ0130 Section 1.2 "List of Part Numbers" and Figure 1-1.

R5F1214AASP#30 Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Package/Case:: 16-SSOP (0.173", 4.40mm Width)

Series:: RL78/G16

Packaging:: Tray

Product Status:: Last Time Buy

Programmable:: -

Core Processor:: RL78

Core Size:: 16-Bit

Speed:: 16MHz

Connectivity:: CSI, I2C, SPI, UART/USART

Peripherals:: Capacitive Touch, POR, PWM, Voltage Detect, WDT

Number of I/O:: 13

Program Memory Size:: 16KB (16K x 8)

Program Memory Type:: FLASH

EEPROM Size:: 1K x 8

RAM Size:: 2K x 8

Voltage - Supply (Vcc/Vdd):: 2.4V ~ 5.5V

Data Converters:: A/D 7x8/10b

Oscillator Type:: External, Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

R5F1214AASP#30 FAQ

1.How can I place an order for R5F1214AASP#30 through Aetrix?

Please submit a Request for Quotation (RFQ) for R5F1214AASP#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 R5F1214AASP#30 reliable?

The price and inventory of R5F1214AASP#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F1214AASP#30 is usually 5 days.

3.What payment methods are accepted for R5F1214AASP#30?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F1214AASP#30 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for R5F1214AASP#30?

R5F1214AASP#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your R5F1214AASP#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 R5F1214AASP#30?

For technical support, including R5F1214AASP#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F1214AASP#30 requirements.

6.How does Aetrix verify that R5F1214AASP#30 is sourced from the original manufacturer or authorized distributors?

All R5F1214AASP#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 R5F1214AASP#30 meets industry standards.

7.What is the process for return or replacement of R5F1214AASP#30?

All R5F1214AASP#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F1214AASP#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 R5F1214AASP#30 part is unused and in its original packaging.

Return procedure for R5F1214AASP#30:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…