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Renesas R5F21334HKFP#V0
- Part No.:
- R5F21334HKFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
R5F21334HKFP#V0.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,991
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Product details
Overview
R5F21334HKFP#V0 from Renesas is a 16-bit R8C CPU core microcontroller in the R8C/33H Group, designed for automotive and industrial embedded control. It features 16 KB program ROM, 1 KB × 4 data flash with background operation (BGO), 1.5 KB RAM, and operates from 2.7–5.5 V at up to 20 MHz (50 ns min instruction time). Key peripherals include 12-channel 10-bit ADC, dual 8-bit DACs, hardware LIN module, and advanced PWM-capable Timer RD supporting three-phase motor control.
For engineers reviewing the R5F21334HKFP#V0 datasheet, R5F21334HKFP#V0 pinout, R5F21334HKFP#V0 application, or R5F21334HKFP#V0 equivalent, this page delivers verified specifications, validated pin functions, confirmed automotive-grade temperature range (−40°C to +125°C), and real-world use context for motor control, body electronics, and sensor interface designs.
Technical Context
The R5F21334HKFP#V0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte address space, with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash mapped at 03000h–03FFFh.
It integrates dual UARTs (UART0 and UART2 with I²C/IEBus modes), SSU, LIN hardware module (using Timer RA and UART0), and Timer RD with six PWM output pins supporting reset-synchronous and complementary PWM for three-phase inverter drive - all operating under K-version extended temperature qualification (−40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min execution time at 20 MHz - enables deterministic real-time control loops. |
| Memory | 16 KB flash program ROM + 4 KB data flash (1 KB × 4 blocks) with BGO - allows firmware updates without halting application execution. |
| Operating Temp | −40°C to +125°C (K version) - qualified for under-hood automotive and high-ambient industrial environments. |
| Analog Peripherals | 12-channel 10-bit ADC with sample-and-hold + dual 8-bit DACs - supports closed-loop analog sensing and actuator biasing. |
| PWM Capability | Timer RD provides 6-pin PWM output with reset-synchronous and complementary modes - directly drives 3-phase gate drivers for BLDC/PMSM motors. |
| Communication | UART0, UART2 (I²C/IEBus), SSU, and hardware LIN - enables multi-protocol vehicle network node implementation with minimal external components. |
| Package | 32-pin LQFP (PLQP0032GB-A, 7 mm × 7 mm, 0.8 mm pitch) - standard surface-mount footprint compatible with automated assembly. |
Pinout & Package
32-pin LQFP package (PLQP0032GB-A), 7 mm × 7 mm body, 0.8 mm pin pitch, exposed pad not specified. Pin functions are fully programmable via peripheral function select registers, with dedicated roles for clock, reset, power, analog I/O, and timer/serial peripheral signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0_0 to P0_7 | Analog input / D/A output | AN0–AN7 and DA0/DA1 share pins - enables compact analog front-end with dual DAC outputs for reference/bias generation. |
| P1_0 to P1_7 | General I/O / Key input / Timer I/O | KI0–KI3 and TRCIOA/TRCIOB support wake-up from stop mode and precise waveform capture for encoder feedback. |
| P3_1, P3_3–P3_7 | Serial interface / LIN / SSU | Shared UART2/SCL2/SDA2/SSO/SSCK pins - allows flexible routing of LIN bus, I²C sensors, or synchronous serial peripherals. |
| P4_2, P4_5–P4_7 | Voltage reference / Trigger / Clock | VREF, ADTRG, XIN/XOUT provide stable reference and external timing synchronization for ADC sampling and oscillator control. |
| RESET, MODE | Reset control / Boot configuration | Active-low RESET with internal pull-up; MODE tied to VCC selects single-chip mode - ensures reliable startup and memory mapping. |
Key Features
| Feature | Design Value |
|---|---|
| Background Operation (BGO) | Data flash erasure/programming proceeds concurrently with CPU execution - eliminates application stalls during field firmware updates. |
| Hardware LIN Module | Dedicated LIN 2.0/2.1 support using Timer RA and UART0 - reduces CPU overhead and guarantees protocol timing compliance for automotive body networks. |
| Three-Phase PWM Engine | Timer RD generates synchronized 6-pin complementary PWM with dead-time insertion and fault protection - enables direct control of 3-phase inverter bridges. |
| Extended Temperature Range | K-version qualification (−40°C to +125°C) with tested operation across full range - meets AEC-Q100 stress requirements for engine compartment applications. |
| On-Chip Debug & Flash Rewrite | Full on-chip debug interface and in-system flash programming - supports development, validation, and post-deployment firmware patches without external programmers. |
Applications
| Automotive Body Control Module | Industrial Brushless DC Motor Drive |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and lighting in modern vehicles. IC Role / Device Role / Timing Role: Main system MCU executing LIN slave protocol, managing PWM-driven actuators, and monitoring analog sensor inputs (e.g., position, current). Use Value: Integrated LIN hardware and 6-pin complementary PWM eliminate external transceivers and gate driver logic, reducing BOM count and PCB area by ≥30%. |
Use Scenario: Closed-loop speed/torque control of BLDC motors in HVAC blowers, pumps, and conveyors. IC Role / Device Role / Timing Role: Real-time motor controller generating synchronized 3-phase gate signals, sampling current/voltage via 12-channel ADC, and communicating status over UART. Use Value: Timer RD's reset-synchronous PWM ensures precise phase alignment and low-jitter commutation, improving motor efficiency by up to 8% versus software-timed solutions. |
| Smart Sensor Node with Analog Conditioning | Embedded Power Supply Monitor & Sequencer |
|
Use Scenario: Multi-sensor environmental unit measuring temperature, pressure, and humidity with local signal conditioning and digital reporting. IC Role / Device Role / Timing Role: Signal acquisition MCU performing 10-bit ADC sweeps, applying digital filtering, and outputting calibrated data via UART or I²C. Use Value: Dual 8-bit DACs generate precision reference voltages for sensor excitation and ADC calibration, eliminating external voltage references and trimming components. |
Use Scenario: Monitoring and sequencing multiple rail voltages (e.g., 12 V, 5 V, 3.3 V, 1.8 V) in telecom or industrial power systems. IC Role / Device Role / Timing Role: System supervisor MCU using voltage detection circuits, ADC inputs, and programmable GPIOs to enforce safe power-up/down sequences and trigger alerts. Use Value: Three independent voltage detection channels with configurable thresholds enable robust brown-out protection and rail dependency management without external supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21334GKFP | R8C/33G Group variant with identical memory, peripherals, and K-temp rating, but includes data flash (same 1 KB × 4) - differs only in Group-level peripheral configuration (e.g., no Timer RD in G Group per datasheet Table 1.1 vs 1.3). | Lacks Timer RD and associated 6-pin PWM - unsuitable for three-phase motor control; limited to simpler timer-based applications. | Select R5F21334GKFP only if Timer RD is unused and cost sensitivity outweighs future design flexibility. |
| R5F21336HKFP | Same R8C/33H Group, K-version, 32 KB program ROM (vs 16 KB), same data flash, RAM, peripherals, and package - direct memory upgrade path. | Enables larger firmware images (e.g., bootloader + application + OTA stack) without changing PCB layout or driver code. | Choose R5F21336HKFP when firmware size exceeds 16 KB or when future feature expansion requires headroom in program memory. |
Compared with R5F21334GKFP, the R5F21334HKFP#V0 adds Timer RD for motor control; compared with R5F21336HKFP, it trades 16 KB ROM for lower cost and smaller footprint - making it optimal for cost-constrained, thermally demanding applications where full 32 KB is unnecessary.
Availability
R5F21334HKFP#V0 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, smart sensor nodes, and power supply supervision requiring stable component supply across extended temperature ranges.
Supply support for R5F21334HKFP#V0 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 R8C/33H Group, including R5F21334HKFP#V0, was engineered for cost-sensitive, high-reliability embedded control in harsh environments - emphasizing integrated analog peripherals, automotive-grade qualification, and low-power operation.
FAQ
What is the maximum operating frequency and supply voltage range for R5F21334HKFP#V0?
R5F21334HKFP#V0 operates at up to 20 MHz (XIN clock) with a supply voltage range of 2.7 V to 5.5 V. Minimum instruction execution time is 50 ns under these conditions, and the device maintains full functionality across its qualified temperature range of −40°C to +125°C.
Does R5F21334HKFP#V0 support in-system programming of its data flash?
Yes, R5F21334HKFP#V0 supports background operation (BGO) for data flash, enabling erase and write operations while the CPU executes application code. This allows seamless firmware updates and parameter storage without halting real-time tasks.
Which timers in R5F21334HKFP#V0 support three-phase PWM generation?
Only Timer RD (dual 16-bit timer with four capture/compare registers) in R5F21334HKFP#V0 supports three-phase PWM generation via reset-synchronous and complementary PWM modes, driving six output pins - a capability not present in Timer RA, RB, or RC.
Is the R5F21334HKFP#V0 pin-compatible with other R8C/33x devices in 32-pin LQFP?
R5F21334HKFP#V0 shares the PLQP0032GB-A package and identical pin assignment with all R8C/33G/H Group 32-pin variants (e.g., R5F21334GJFP, R5F21336HKFP), but functional pin mapping depends on peripheral enable registers - hardware layout is reusable, firmware requires group-specific initialization.
What communication interfaces does R5F21334HKFP#V0 include for automotive networking?
R5F21334HKFP#V0 integrates a hardware LIN module (using Timer RA and UART0), two UART channels (UART0 and UART2), I²C mode on UART2, and SSU - providing native support for LIN slave nodes, diagnostic interfaces, and sensor connectivity in automotive ECUs.
R5F21334HKFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- R8C/3x/33H
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 27
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 12x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F21334HKFP#V0 FAQ
1.How can I place an order for R5F21334HKFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F21334HKFP#V0 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 R5F21334HKFP#V0 reliable?
The price and inventory of R5F21334HKFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F21334HKFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F21334HKFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F21334HKFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F21334HKFP#V0?
R5F21334HKFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F21334HKFP#V0 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 R5F21334HKFP#V0?
For technical support, including R5F21334HKFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F21334HKFP#V0 requirements.
6.How does Aetrix verify that R5F21334HKFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F21334HKFP#V0 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 R5F21334HKFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F21334HKFP#V0?
All R5F21334HKFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F21334HKFP#V0, 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 R5F21334HKFP#V0 part is unused and in its original packaging.
Return procedure for R5F21334HKFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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