My Inquiry
My Account
Renesas R5F21346XJFP#W4
- Part No.:
- R5F21346XJFP#W4
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F21346XJFP#W4.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,056
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F21346XJFP from Renesas is a 48-pin LQFP 8-bit R8C/34X Group MCU with CAN 2.0B interface, 32 KB flash program memory, 2.5 KB RAM, and 10-bit × 12-channel A/D converter. It operates at up to 20 MHz (50 ns min instruction time), supports −40°C to +85°C ambient, and integrates UART0/UART2 (with I²C/IEBus modes), SSU, LIN, and six timer modules including dual 16-bit PWM-capable Timer RD units. It targets automotive LAN and industrial FA control nodes requiring robust serial communication and real-time timing.
For engineers reviewing the R5F21346XJFP datasheet, R5F21346XJFP pinout, R5F21346XJFP application, or R5F21346XJFP equivalent, key selection criteria include CAN module compliance with ISO 11898-1, background operation absence in program ROM (100-cycle endurance), J-version temperature rating, and 48-pin PLQP0048KB-A package compatibility with existing R8C/3x layouts.
Technical Context
The R5F21346XJFP implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and multiply-accumulate capability. Its clock system includes XIN/XOUT crystal oscillator, high-speed on-chip oscillator with frequency adjustment, and low-speed on-chip oscillator - all supporting wait/stop low-power modes and oscillation stop detection.
Peripheral integration centers on deterministic real-time control: Timer RD provides reset-synchronous and complementary three-phase PWM (6-pin output), Timer RC offers input capture/output compare with 4 registers, and the CAN module delivers 16 mailboxes with full ISO 11898-1 conformance. UART2 supports multiprocessor communication and I²C-bus master/slave operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C core with 89 instructions, 50 ns min execution time @20 MHz, 16×16→32-bit multiplier |
| Memory | 32 KB flash program ROM (100 write/erase cycles), 2.5 KB RAM, no data flash |
| CAN Interface | 1 channel, ISO 11898-1 compliant, 16 mailboxes, CRX0/CTX0 dedicated pins |
| A/D Converter | 10-bit resolution × 12 channels, sample-and-hold, sweep mode, external trigger (ADTRG) |
| Timers | Timer RA/RB (8-bit), Timer RC (16-bit, 4 capture/compare), Timer RD (16-bit × 2, 6-pin PWM), Timer RE (8-bit output compare) |
| Operating Range | −40°C to +85°C (J version), VCC = 2.7–5.5 V, typ. 7 mA @5 V/20 MHz |
| Package | 48-pin LQFP, PLQP0048KB-A (7 mm × 7 mm, 0.5 mm pitch) |
Pinout & Package
48-pin LQFP package (PLQP0048KB-A) with 0.5 mm pitch and 7 mm × 7 mm body. Pin 1 marked by dot; thermal pad exposed on underside.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0–P0_7 | Analog input / CMOS I/O | AN0–AN7 for A/D; all configurable as general-purpose I/O with pull-up |
| P1_0–P1_7 | Key input / UART / Timer I/O | KI0–KI3 interrupt inputs; TXD0/RXD0; TRCIOA/TRCTRG for Timer RC triggering |
| P2_0–P2_7 | Timer RD I/O | TRDIOA0–TRDIOD1 and TRDCLK for dual 16-bit PWM waveform generation |
| P3_0, P3_1 | Timer RA/RB output | (TRAO)/(TRBO) - programmable timer output pins, software-assignable |
| P3_3, P3_4, P3_5, P3_7 | UART2 / I²C / SSU / CAN auxiliary | CTS2/RTS2, SDA2/SCL2, SSO/SSCK/SCS, and (RXD2)/(TXD2) functions shared |
| P4_2 | Analog reference | VREF input only - sets A/D conversion reference voltage |
| P4_5 | Interrupt / A/D trigger | INT0 input and ADTRG external start signal for A/D conversion |
| P6_1, P6_2 | CAN physical layer | CTX0 (CAN transmit output), CRX0 (CAN receive input) - dedicated CAN bus pins |
| RESET | Active-low reset | Hardware reset assertion; internal power-on reset circuit included |
| XIN / XOUT | Crystal oscillator interface | Supports ceramic resonator or crystal (1–20 MHz); XOUT also accepts external clock |
Key Features
| Feature | Design Value |
|---|---|
| ISO 11898-1 CAN controller | Single-channel, 16-mailbox FIFO, hardware message filtering, error handling, and bus-off recovery |
| Dual 16-bit Timer RD units | Independent 6-pin PWM outputs per unit; reset-synchronous and complementary modes for motor drive |
| UART2 with I²C-bus mode | Full-duplex UART with programmable baud rate; I²C master/slave operation without external components |
| Hardware LIN module | Integrated LIN 2.0/2.1 support using UART0 and Timer RA - no firmware overhead for frame generation |
| Low-power operation | Wait/stop modes with wake-up via INT/KI/RTC/CAN activity; low-speed on-chip oscillator for watchdog independence |
| On-chip debug & flash rewrite | Full in-circuit debugging; flash reprogramming during application execution via on-board function |
Applications
| Automotive Body Control Module | Industrial Fieldbus Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, and lighting in passenger vehicles using CAN bus communication. IC Role / Device Role / Timing Role: Primary CAN node executing real-time actuator sequencing, A/D monitoring of sensor feedback (e.g., position, current), and LIN sub-network gateway. Use Value: Integrated CAN + LIN + 12-channel A/D eliminates external transceivers and ADC ICs; 20 MHz R8C core ensures <100 µs response latency for safety-critical commands. |
Use Scenario: Distributed I/O controller in factory automation systems communicating over CANopen or DeviceNet. IC Role / Device Role / Timing Role: Protocol-aware field device with deterministic timer-driven I/O scanning, CAN message scheduling, and analog input conditioning. Use Value: Six independent timers (including dual 16-bit PWM) enable synchronized multi-axis motion control; 43 CMOS I/O ports support direct connection to sensors/actuators without glue logic. |
| Motor Drive Interface Unit | Smart Sensor Hub |
Use Scenario: Three-phase BLDC motor controller with hall-effect commutation and current sensing in HVAC blowers or pumps. IC Role / Device Role / Timing Role: Real-time PWM generator (Timer RD), A/D sampling of phase currents and temperature, and CAN-based fault reporting. Use Value: Complementary PWM mode generates matched high-/low-side gate drive signals with programmable dead time; 10-bit A/D with sample-and-hold captures fast transient currents. |
Use Scenario: Multi-sensor aggregation node in predictive maintenance systems, collecting vibration, temperature, and humidity data. IC Role / Device Role / Timing Role: Sensor interface hub with A/D conversion, UART/I²C peripheral bridging, and CAN telemetry transmission. Use Value: UART2's I²C mode directly interfaces digital sensors (e.g., TMP102, BME280); 12-channel A/D supports analog sensors (e.g., piezoelectric accelerometers) with sweep-triggered acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21346WJFP | Includes 1 KB × 4 data flash with BGO; identical CAN, timers, A/D, and package | Requires background data logging or firmware update storage; not needed for pure control-only use | Select R5F21346WJFP if non-volatile parameter storage or field firmware updates are required |
| R5F21346YJFP | Includes 1 KB × 4 data flash with BGO; lacks CAN module; retains LIN, UART2, and full timer set | Suitable for LIN-only automotive subsystems or cost-sensitive industrial controllers without CAN | Select R5F21346YJFP when CAN is unnecessary and data flash is required for calibration storage |
Compared with R5F21346WJFP, R5F21346XJFP trades data flash for identical CAN functionality at lower program ROM endurance - ideal for fixed-function CAN nodes. Against R5F21346YJFP, it adds CAN while removing data flash, making it optimal for automotive network endpoints where flash writes are infrequent but bus reliability is critical.
Availability
R5F21346XJFP is available at Aetrix Electronics and suitable for automotive body electronics, industrial fieldbus nodes, motor drive interfaces, and smart sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for R5F21346XJFP 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 R8C/34X Group, including R5F21346XJFP, was designed for cost-effective, high-integration automotive and industrial control applications demanding CAN connectivity, precise timing, and mixed-signal capability in compact 48-pin packages.
FAQ
What is the maximum operating frequency and instruction speed of the R5F21346XJFP?
The R5F21346XJFP supports a maximum external crystal frequency of 20 MHz, achieving a minimum instruction execution time of 50 ns under VCC = 2.7–5.5 V. Its R8C CPU core executes 89 fundamental instructions with hardware 16×16→32-bit multiplication and multiply-accumulate capability - enabling efficient math-intensive control loops without software emulation overhead in the R5F21346XJFP.
Does the R5F21346XJFP include data flash memory?
No, the R5F21346XJFP does not include data flash memory. As indicated by the "X" in its part number (R8C/34X Group), it features a CAN module but omits the 1 KB × 4 data flash blocks present in W/Y-group variants. Its 32 KB program flash has 100 write/erase cycle endurance, suitable for fixed firmware deployment but not for frequent runtime parameter storage - a key differentiator of the R5F21346XJFP within the R8C/34 family.
Which pins are dedicated to the CAN physical layer on the R5F21346XJFP?
The R5F21346XJFP uses P6_1 (CTX0) as the dedicated CAN transmit output and P6_2 (CRX0) as the dedicated CAN receive input - both marked in the datasheet as exclusive to the CAN module and not shareable with other peripherals. These pins comply with ISO 11898-1 physical layer requirements and must be connected to an external CAN transceiver (e.g., TJA1042) to interface with the bus - a defining hardware interface of the R5F21346XJFP.
Can the R5F21346XJFP operate in low-power modes, and how is wake-up handled?
Yes, the R5F21346XJFP supports wait mode and stop mode with multiple wake-up sources: external interrupts (INT0–INT4), key input interrupts (KI0–KI3), RTC alarm, CAN activity, and A/D conversion completion. In stop mode, the low-speed on-chip oscillator remains active to drive the watchdog timer independently - ensuring fail-safe timeout recovery without external clock dependency, a critical reliability feature for the R5F21346XJFP in automotive and industrial environments.
What serial communication interfaces does the R5F21346XJFP support besides CAN?
Besides its primary CAN 2.0B interface, the R5F21346XJFP integrates UART0 (basic UART), UART2 (advanced UART with I²C-bus master/slave and IE-Bus modes), and a synchronous serial unit (SSU) supporting SPI-like communication. UART2's I²C capability enables direct connection to digital sensors without level shifters, while SSU provides additional full-duplex serial links - collectively offering flexible multi-protocol connectivity in the R5F21346XJFP for heterogeneous peripheral integration.
R5F21346XJFP#W4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34X
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- CANbus, I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 43
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21346XJFP#W4 FAQ
1.How can I place an order for R5F21346XJFP#W4 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21346XJFP#W4 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 R5F21346XJFP#W4 reliable?
The price and inventory of R5F21346XJFP#W4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21346XJFP#W4 is usually 5 days.
3.What payment methods are accepted for R5F21346XJFP#W4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21346XJFP#W4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21346XJFP#W4?
R5F21346XJFP#W4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21346XJFP#W4 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 R5F21346XJFP#W4?
For technical support, including R5F21346XJFP#W4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21346XJFP#W4 requirements.
6.How does Aetrix verify that R5F21346XJFP#W4 is sourced from the original manufacturer or authorized distributors?
All R5F21346XJFP#W4 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 R5F21346XJFP#W4 meets industry standards.
7.What is the process for return or replacement of R5F21346XJFP#W4?
All R5F21346XJFP#W4 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21346XJFP#W4, 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 R5F21346XJFP#W4 part is unused and in its original packaging.
Return procedure for R5F21346XJFP#W4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F21346XJFP#W4 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…
