My Inquiry
My Account
Renesas R5F104JCAFA#30
- Part No.:
- R5F104JCAFA#30
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
R5F104JCAFA#30.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,909
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F104JCAFA#30 from Renesas is a 52-pin LQFP-0.65 mm pitch, 96 KB flash, 12 KB RAM RL78/G14 16-bit microcontroller with ultra-low-power operation (66 μA/MHz), integrated 10-bit ADC (16 channels), UART/SPI/I²C interfaces, RTC, and hardware DTC/ELC for deterministic peripheral coordination in battery-powered industrial sensors and smart meters.
For engineers reviewing the R5F104JCAFA#30 datasheet, R5F104JCAFA#30 pinout, R5F104JCAFA#30 application, or R5F104JCAFA#30 equivalent, key selection criteria include its -40°C to +85°C industrial temperature grade (D-grade), 1.6–5.5 V supply range, 32 MHz max CPU speed, and support for background data flash rewriting - critical for firmware-over-the-air updates in field-deployed devices.
Technical Context
The R5F104JCAFA#30 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), and includes multiply/divide/accumulate instructions. Its memory subsystem integrates 96 KB code flash (1 KB block size), 4 KB data flash (1M rewrite cycles), and 12 KB SRAM with dedicated flash library RAM usage starting at F9F00H.
Peripherals are orchestrated via Event Link Controller (ELC) linking 19–26 event sources to peripherals, and Data Transfer Controller (DTC) enabling chain transfers triggered by interrupts - eliminating CPU overhead for sensor data acquisition and communication stack handling in real-time embedded control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RL78 16-bit CISC CPU with 3-stage pipeline and 44 DMIPS @ 32 MHz |
| Flash Memory | 96 KB code flash (1 KB erase blocks) with security lock and self-programming |
| Data Flash | 4 KB with background operation (BGO) and 1,000,000 write cycles |
| RAM | 12 KB on-chip SRAM; flash library uses RAM starting at address F9F00H |
| ADC | 10-bit resolution, 16 analog input channels, internal 1.45 V reference and temperature sensor |
| Timers | 8× 16-bit TAU channels, 1× 12-bit interval timer, 1× RTC with calendar/alarm/correction |
| Serial Interfaces | 3× UART/LIN, 3–8× CSI (SPI-compatible), 4–10× I²C/simplified I²C |
| Supply & Temp | 1.6–5.5 V operation; industrial grade (-40°C to +85°C) |
Pinout & Package
Package: 52-pin LQFP, 10 × 10 mm, 0.65 mm pitch (Renesas code PLQP0052JA-A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00 | TxD1 / TI00 / TRGCLKA | Primary UART transmit; timer input; debug clock input - enables dual-role pin for compact serial comms + timing |
| P01 | RxD1 / TO00 / TRGCLKB | Primary UART receive; timer output; debug clock output - supports full-duplex UART with hardware flow control |
| P10–P15 | CSI11 / I²C11 / UART2 / TRDIOD1–TRDIOB0 | Multiplexed serial interface pins supporting simultaneous SPI, I²C, and LIN transceiver functions via peripheral redirection |
| P16/P17 | INTP5/RxD0 / INTP4/TxD0 / TRDIOC0/TRDIOA0 | Dual UART channel routing with interrupt-capable I/O - allows concurrent debug port and application UART |
| P30/P31 | RTC1HZ / SCK00 / INTP3 / TI03 / TO03 / PCLBUZ0 | Real-time clock output + SPI clock + 3 independent timer functions - consolidates timekeeping, comms, and PWM in two pins |
| P60/P61 | SCLA0 / SDAA0 | Dedicated I²C bus pins with internal pull-up capability - eliminates external resistors for simple sensor interfacing |
| P121/P122 | X1 / X2 / EXCLK | Crystal oscillator inputs supporting 32.768 kHz RTC crystal or external clock source - ensures accurate timekeeping without software overhead |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external supervisor ICs for system-level fault recovery |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power HALT/STOP/SNOOZE modes | 0.60 μA RTC+LVD operation enables >10-year battery life in metering applications |
| Hardware DTC with chain transfer | Offloads CPU during ADC-to-memory or UART-to-buffer transfers - reduces active time by up to 40% in sensor polling loops |
| Event Link Controller (ELC) | Direct peripheral-to-peripheral triggering (e.g., timer overflow → ADC start) eliminates ISR latency and jitter |
| Background data flash rewriting (BGO) | Enables firmware updates while executing application code - critical for secure OTA deployment |
| On-chip voltage detector (LVD) | 14-level programmable reset/interrupt threshold ensures reliable brown-out protection across 1.6–5.5 V supply range |
| Peripheral I/O redirection registers | Runtime remapping of UART/CSI/I²C functions to alternate pins - simplifies PCB layout and enables pin reuse |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Electricity/water/gas meter with pulse counting, tamper detection, and RF communication. IC Role / Device Role / Timing Role: Main controller managing metrology ADC sampling, RTC-based billing intervals, and UART-to-PLC/RF modem interface. Use Value: 10-bit ADC with internal reference and 16-channel scan supports multi-sensor input; BGO enables secure firmware patching without service interruption. | Use Scenario: Wireless temperature/humidity/pressure node in factory automation or HVAC systems. IC Role / Device Role / Timing Role: Sensor hub aggregating analog/digital inputs, performing local preprocessing, and scheduling low-power BLE/Wi-SUN transmissions. Use Value: 0.60 μA STOP mode extends AA battery life beyond 5 years; ELC synchronizes ADC capture with timer-triggered radio wake-up. |
| Home Appliance Control | Building Automation Panel |
Use Scenario: Washing machine/microwave MCU handling motor control, user interface, and safety monitoring. IC Role / Device Role / Timing Role: Real-time motor commutation via PWM timers, touch-key scanning, and fault-safe shutdown logic. Use Value: 8× 16-bit TAU timers support precise 3-phase motor drive; N-ch open-drain I/O drives LED displays and relays directly. | Use Scenario: DIN-rail mounted HVAC controller with Modbus RTU, display, and environmental sensing. IC Role / Device Role / Timing Role: Protocol stack processor for RS-485 Modbus, real-time scheduling of fan/pump control, and local HMI rendering. Use Value: 3× UARTs enable simultaneous Modbus master/slave and debug ports; 12 KB RAM accommodates protocol buffers and state machines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104JDAFA#30 | Same package and pinout; 128 KB flash, 16 KB RAM, identical peripherals | Higher firmware complexity (e.g., larger protocol stacks, GUI frameworks) | Select when future firmware expansion headroom or dual-bank bootloading is required |
| R5F104JEAFA#30 | Same package and pinout; 48 KB flash, 5.5 KB RAM, same peripheral set | Cost-sensitive, fixed-function designs with minimal code footprint | Select for high-volume, resource-constrained applications where 96 KB flash is excessive |
Compared with R5F104JDAFA#30 and R5F104JEAFA#30, the R5F104JCAFA#30 delivers optimal balance of code space (96 KB), RAM (12 KB), and industrial temperature rating - making it ideal for mid-complexity smart metering and sensor edge nodes requiring field-upgradable firmware and long battery life.
Availability
R5F104JCAFA#30 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, home appliance control, and building automation panels requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for R5F104JCAFA#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The RL78/G14 product line targets cost-sensitive, ultra-low-power general-purpose applications - emphasizing rapid development, energy efficiency, and integration of analog/mixed-signal peripherals for sensor and control systems.
FAQ
What is the maximum operating frequency and corresponding current consumption of the R5F104JCAFA#30?
The R5F104JCAFA#30 operates up to 32 MHz with a typical active current of 66 μA/MHz at VDD = 3.0 V and TA = 25°C. In STOP mode with only RTC and LVD active, it draws just 0.60 μA - enabling decade-long battery operation in metering and sensor applications. The high-speed on-chip oscillator achieves ±1.0% accuracy across 1.8–5.5 V and -20°C to +85°C.
Does the R5F104JCAFA#30 support in-system programming and secure firmware updates?
Yes, the R5F104JCAFA#30 supports full in-system programming via on-chip debug interface and includes flash shield window, block erase prohibition, and boot swapping for secure firmware updates. Its background operation (BGO) allows data flash rewriting while executing application code - essential for robust over-the-air (OTA) updates in deployed R5F104JCAFA#30-based devices.
How many analog input channels and what ADC resolution does the R5F104JCAFA#30 provide?
The R5F104JCAFA#30 integrates a 10-bit successive-approximation ADC with up to 16 analog input channels (ANI0–ANI18, excluding reserved pins), internal 1.45 V reference voltage, and integrated temperature sensor. It operates across the full 1.6–5.5 V supply range, enabling direct sensor interfacing without external signal conditioning in most R5F104JCAFA#30 implementations.
What serial communication interfaces are available on the R5F104JCAFA#30?
The R5F104JCAFA#30 provides 3 UART/LIN channels, 3–8 CSI (SPI-compatible) channels, and 4–10 I²C/simplified I²C channels - all configurable via peripheral I/O redirection registers. This enables flexible connectivity to sensors, displays, modems, and legacy industrial buses without requiring external level shifters or protocol converters in R5F104JCAFA#30 designs.
Is the R5F104JCAFA#30 pin-compatible with other RL78/G14 variants in the same package?
Yes, all RL78/G14 devices in the 52-pin LQFP-0.65 mm package (e.g., R5F104JDAFA#30, R5F104JEAFA#30) share identical pinouts and electrical characteristics. Firmware and PCB designs for R5F104JCAFA#30 can be reused across this family - allowing seamless migration between 48 KB, 96 KB, and 128 KB flash variants based on application requirements.
R5F104JCAFA#30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 52-LQFP
- Series:
- RL78/G14
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- RL78
- Core Size:
- 16-Bit
- Speed:
- 32MHz
- Connectivity:
- CSI, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.6V ~ 5.5V
- Data Converters:
- A/D 12x8/10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F104JCAFA#30 FAQ
1.How can I place an order for R5F104JCAFA#30 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F104JCAFA#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 R5F104JCAFA#30 reliable?
The price and inventory of R5F104JCAFA#30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F104JCAFA#30 is usually 5 days.
3.What payment methods are accepted for R5F104JCAFA#30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F104JCAFA#30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F104JCAFA#30?
R5F104JCAFA#30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F104JCAFA#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 R5F104JCAFA#30?
For technical support, including R5F104JCAFA#30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F104JCAFA#30 requirements.
6.How does Aetrix verify that R5F104JCAFA#30 is sourced from the original manufacturer or authorized distributors?
All R5F104JCAFA#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 R5F104JCAFA#30 meets industry standards.
7.What is the process for return or replacement of R5F104JCAFA#30?
All R5F104JCAFA#30 units undergo pre-shipment inspection (PSI). If there is an issue with R5F104JCAFA#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 R5F104JCAFA#30 part is unused and in its original packaging.
Return procedure for R5F104JCAFA#30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F104JCAFA#30 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…
