My Inquiry
My Account
Renesas R5F121BAMNA#60
- Part No.:
- R5F121BAMNA#60
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
R5F121BAMNA#60.pdf
- Description:
- 16BIT MCU RL78/G16 16K HWQFN32 -
- Quantity:
- Payment:
- Shipping:
Inventory:3,537
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F121BAMNA#60 from Renesas Electronics is a 32-pin, 32 KB flash, 2 KB RAM RL78/G16 16-bit microcontroller in HWQFN-32 (5 × 5 mm, 0.5-mm pitch) package, operating from 2.4–5.5 V with −40°C to +125°C industrial temperature rating. It integrates an 8/10-bit ADC (11-channel), capacitive touch sensing unit (15-channel), RTC with calendar, and dual serial interfaces including I²C and simplified SPI/UART.
For engineers reviewing the R5F121BAMNA#60 datasheet, R5F121BAMNA#60 pinout, R5F121BAMNA#60 application, or R5F121BAMNA#60 equivalent, this page delivers verified electrical specs, validated pin functions, real-world use cases for industrial HMI and sensor control, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The R5F121BAMNA#60 implements the RL78 CPU core with CISC architecture and 3-stage pipeline, supporting instruction execution times from 0.0625 μs (@16 MHz high-speed on-chip oscillator) to 30.5 μs (@32.768 kHz subsystem clock). Its memory subsystem includes 32 KB code flash (1 KB block size), 1 KB data flash (512 B block, 1M rewrite cycles), and 2 KB on-chip RAM.
Peripheral integration includes eight 16-bit timers, one 12-bit interval timer, watchdog timer, real-time clock with 99-year calendar, up to 11-channel A/D converter with internal reference (0.815 V), two comparators, and a dedicated 15-channel capacitive touch sensing unit (CTSU) supporting both self- and mutual-capacitance configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline |
| Flash Memory | 32 KB code flash; 1 KB erase block size; write-after-erase only |
| Data Flash | 1 KB; 512 B block size; 32-bit rewrite unit; 1,000,000 TYP. rewrites |
| RAM | 2 KB on-chip SRAM |
| ADC | 8/10-bit resolution; 11 analog input channels; internal 0.815 V reference |
| Operating Voltage | 2.4 V to 5.5 V single supply; supports HALT and STOP low-power modes |
| Temperature Range | −40°C to +125°C (M-grade industrial qualification) |
| Oscillator | High-speed on-chip oscillator selectable at 16/8/4/2/1 MHz; ±1.5% accuracy at TA = −40 to +125°C |
Pinout & Package
Package: HWQFN-32 (5.0 × 5.0 mm, 0.5-mm pitch), exposed die pad (requires non-electrical thermal pad connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P125 | RESET/INTP1/INTP0 | Active-low reset input with interrupt capability; dual-function pin for system initialization and external event handling |
| P00 | TOOLTxD/INTP6/SO00/TxD0 | UART transmit output with interrupt and serial peripheral interface capability; primary debug and communication channel |
| P01 | TOOLRxD/ANI0/INTP5/TS00 | UART receive input with analog input (A/D channel 0) and touch sense; enables combined debug, sensing, and communication on single pin |
| P02 | PCLBUZ0/ANI1/VCOUT0/INTP7/TSCAP | Capacitive touch sensing input with analog channel 1 and buzzer output; dedicated CTSU electrode driver |
| P41 | RTC1HZ/TS13/TI03/TO03 | Real-time clock 1 Hz output with touch sense and timer I/O; provides precise timekeeping signal and peripheral timing resource |
| VDD / VSS | Power Supply / Ground | Dual power pins support stable core and I/O operation; exposed die pad requires thermal grounding without electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| True low-power platform | 61 µA/MHz operating current at TA = 125°C; HALT/STOP modes enable sub-µA standby |
| Integrated capacitive touch sensing | 15-channel CTSU supporting self- and mutual-capacitance; no external components required for basic touch key implementation |
| On-chip debug and programming | Full on-chip debug function with no boot swap; self-programming supported without external programmer |
| Industrial-grade timing | RTC with 99-year calendar, alarm, and clock correction; operates across full −40°C to +125°C range |
| Flexible serial connectivity | Up to three simplified SPI/UART channels and one full I²C interface; multiplexed I/O allows shared pins with timers and analog functions |
| Analog subsystem integration | 11-channel A/D converter with internal reference, two comparators, and temperature sensor - all usable concurrently with CTSU |
Applications
| Industrial HMI Control Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled front panel for HVAC controllers or programmable logic relays with LED feedback and real-time status display. IC Role / Device Role / Timing Role: Main controller executing UI logic, managing capacitive keys, driving buzzer alerts, and maintaining accurate time via integrated RTC. Use Value: Eliminates external touch controller and RTC IC; reduces BOM count by 2–3 components while maintaining −40°C to +125°C operational reliability. |
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity (via analog sensor), and ambient light, transmitting data over UART to gateway. IC Role / Device Role / Timing Role: System-on-chip sensor aggregator with A/D conversion, low-power wake-on-interrupt, and precise timestamping of measurements. Use Value: 61 µA/MHz active current and STOP mode extend battery life beyond 5 years; on-chip 0.815 V reference ensures consistent ADC accuracy without external voltage reference. |
| Appliance Motor Control Interface | Industrial Timer/Sequencer Module |
|
Use Scenario: User interface and safety monitoring module for washing machine or dishwasher, detecting door closure, water level, and cycle progress. IC Role / Device Role / Timing Role: Real-time coordinator between mechanical sensors (analog/comparator inputs), touch controls, and motor driver enable signals. Use Value: Eight 16-bit timers and dual comparators allow concurrent PWM generation, pulse-width measurement, and analog threshold detection - all within single chip. |
Use Scenario: Standalone programmable timer for factory equipment, supporting delay, interval, and countdown functions with visual/audible alert outputs. IC Role / Device Role / Timing Role: Precision timing engine using RTC calendar and 12-bit interval timer for sub-second to multi-year scheduling. Use Value: Integrated RTC with clock correction maintains ±1 minute/year accuracy; buzzer output (PCLBUZ0) enables direct audible alarm without external driver. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F121BCMNA#60 | Same 32-pin HWQFN package and 32 KB flash, but G-grade (−40°C to +105°C) instead of M-grade (−40°C to +125°C) | Not qualified for extended high-temperature environments such as under-hood automotive or high-power industrial enclosures | Select when ambient operating temperature remains ≤ +105°C; identical pinout and firmware compatibility |
| R5F121BCGFP#70 | LQFP-32 (7 × 7 mm, 0.8-mm pitch) package; same flash/RAM specs and M-grade temp range, but different thermal and routing characteristics | Preferred for prototyping or legacy PCBs designed for LQFP; larger footprint eases hand-soldering and thermal management | Choose for design flexibility where QFN assembly infrastructure is unavailable or thermal dissipation requirements favor exposed-pad-free packages |
Compared with R5F121BAMNA#60, R5F121BCMNA#60 offers identical functionality at lower temperature grade, reducing cost where +125°C operation is unnecessary; R5F121BCGFP#70 retains full spec compliance but trades HWQFN's compactness for LQFP's manufacturability and thermal profile.
Availability
R5F121BAMNA#60 is available at Aetrix Electronics and suitable for industrial HMI control panels, smart sensor nodes, appliance interfaces, and programmable timer modules requiring stable component supply across extended temperature ranges.
Supply support for R5F121BAMNA#60 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 industrial, automotive, and IoT markets.
The RL78/G16 product line delivers ultra-low-power 16-bit MCUs optimized for cost-sensitive, thermally demanding applications requiring integrated analog, touch, and real-time capabilities - targeting industrial controls and consumer appliances.
FAQ
What is the maximum operating frequency and corresponding instruction speed for the R5F121BAMNA#60?
The R5F121BAMNA#60 supports a maximum high-speed on-chip oscillator frequency of 16 MHz, delivering a minimum instruction execution time of 0.0625 μs. This timing assumes operation with the high-speed on-chip oscillator enabled and no wait states. The RL78 core's 3-stage pipeline enables deterministic execution across its full voltage and temperature range.
Does the R5F121BAMNA#60 support background data flash rewriting while executing code from main flash?
No, the R5F121BAMNA#60 does not support background operation (BGO) for data flash. During data flash rewriting, instruction execution from code flash memory is halted. This constraint requires careful state management in firmware - typically using STOP mode or controlled HALT sequences - to avoid corruption during updates.
How many capacitive touch channels does the R5F121BAMNA#60 support, and what configuration options are available?
The R5F121BAMNA#60 integrates a dedicated Capacitive Touch Sensing Unit (CTSU) supporting up to 15 channels. It enables both self-capacitance (one key per pin) and mutual-capacitance (matrix configuration) modes. In mutual mode, up to 16 keys can be implemented using transmit/receive pin combinations selected from the 15 available CTSU-capable pins.
What are the key differences between the R5F121BAMNA#60 and R5F121BCMNA#60?
The R5F121BAMNA#60 and R5F121BCMNA#60 share identical package (HWQFN-32), memory (32 KB flash, 2 KB RAM), peripherals, and pinout. Their sole difference is temperature grade: R5F121BAMNA#60 is rated for −40°C to +125°C (M-grade), while R5F121BCMNA#60 is rated for −40°C to +105°C (G-grade). All other electrical and functional specifications match.
Can the R5F121BAMNA#60 operate from a 3.3 V supply while maintaining full specification compliance?
Yes, the R5F121BAMNA#60 is fully specified for operation across 2.4 V to 5.5 V, including standard 3.3 V systems. At 3.3 V, it maintains full functionality of its 16 MHz high-speed oscillator (±1.5% accuracy), 11-channel ADC, RTC, and CTSU - all validated across the full −40°C to +125°C industrial temperature range.
R5F121BAMNA#60 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- RL78/G16
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 29
- 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 11x8/10b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F121BAMNA#60 FAQ
1.How can I place an order for R5F121BAMNA#60 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F121BAMNA#60 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 R5F121BAMNA#60 reliable?
The price and inventory of R5F121BAMNA#60 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F121BAMNA#60 is usually 5 days.
3.What payment methods are accepted for R5F121BAMNA#60?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F121BAMNA#60 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F121BAMNA#60?
R5F121BAMNA#60 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F121BAMNA#60 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 R5F121BAMNA#60?
For technical support, including R5F121BAMNA#60 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F121BAMNA#60 requirements.
6.How does Aetrix verify that R5F121BAMNA#60 is sourced from the original manufacturer or authorized distributors?
All R5F121BAMNA#60 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 R5F121BAMNA#60 meets industry standards.
7.What is the process for return or replacement of R5F121BAMNA#60?
All R5F121BAMNA#60 units undergo pre-shipment inspection (PSI). If there is an issue with R5F121BAMNA#60, 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 R5F121BAMNA#60 part is unused and in its original packaging.
Return procedure for R5F121BAMNA#60:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F121BAMNA#60 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…
