Renesas R5F2134CKDFP#V0
- Part No.:
- R5F2134CKDFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F2134CKDFP#V0.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 48LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F2134CKDFP#V0 from Renesas is a 16-bit R8C CPU core microcontroller in the R8C/34K Group, designed for embedded USB host/peripheral applications requiring integrated analog and timing peripherals. It features 128 KB program ROM, 10 KB data flash (4 × 1 KB blocks with BGO), 8 KB RAM, 12-channel 10-bit A/D converter, USB 2.0 Full Speed controller with OTG capability, and operates from 1.8–5.5 V across −40°C to +85°C.
For engineers reviewing the R5F2134CKDFP#V0 datasheet, R5F2134CKDFP#V0 pinout, R5F2134CKDFP#V0 application, or R5F2134CKDFP#V0 equivalent, key selection criteria include USB OTG support, 128 KB flash capacity, 48-pin LQFP package with dedicated USB transceiver pins, and industrial temperature grade operation.
Technical Context
The R5F2134CKDFP#V0 implements the R8C CPU core with 89 fundamental instructions, 16×16→32-bit hardware multiplier, and multiply-accumulate capability. Its memory map spans 1 Mbyte (00000h–FFFFFh), with fixed interrupt vector table at 0FFDCh–0FFFFh and data flash at 03000h–03FFFh.
USB functionality includes on-chip transceiver, 5-pipe FIFO (448 bytes total), DCP + bulk + interrupt transfers, and OTG-specific signals (USB_ID, USB_EXICEN, USB_VBUSEN, USB_OVRCURA/B). The device supports PLL frequency synthesis, high/low-speed on-chip oscillators, and XIN/XOUT crystal interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R8C 16-bit core with 89 instructions, 50 ns min instruction time at 20 MHz, 16×16→32-bit multiplier |
| Memory | 128 KB program ROM, 8 KB RAM, 10 KB data flash (4 × 1 KB blocks with background operation) |
| USB Interface | USB 2.0 Full Speed (12 Mbps) with OTG support, 5-pipe controller, 448-byte FIFO, USB_ID/EXICEN/VBUSEN signals |
| Analog Peripherals | 12-channel 10-bit A/D converter with sample-and-hold and sweep mode; 2 comparator B circuits |
| Timers | Timer RA/RB (8-bit × 2), Timer RC/RF (16-bit × 2), with PWM, input capture, output compare, and programmable waveform modes |
| Operating Range | −40°C to +85°C ambient temperature, 1.8–5.5 V supply voltage, 20 MHz max external clock (XIN) |
| Package | 48-pin LQFP (PLQP0048KB-A), 7 mm × 7 mm, 0.5 mm pitch |
Pinout & Package
Package: 48-pin LQFP (PLQP0048KB-A), RoHS-compliant, surface-mount, 7 mm × 7 mm body, 0.5 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_DP / USB_DM | D+/D− differential I/O | Direct connection to USB bus; internal transceiver eliminates need for external PHY |
| USB_VBUS | VBUS monitor input | Detects USB cable insertion/removal during runtime for dynamic power management |
| USB_ID | OTG ID detection input | Identifies micro-AB connector orientation to auto-select host/device role in OTG mode |
| USB_EXICEN | OTG external IC enable | Controls external OTG power switch (e.g., TPS65950); enables low-power host mode sequencing |
| USB_VBUSEN | VBUS supply enable output | Drives external 5 V regulator enable pin when acting as USB host |
| USB_OVRCURA / USB_OVRCURB | Overcurrent sense inputs | Monitor external current-limiting FETs or power switches for USB host port protection |
| AN0–AN11 | Analog inputs | 12 single-ended or 6 differential channels for sensor interfacing with internal reference options |
| P0_0–P1_7, P3_0, P3_3–P3_7, P4_3–P4_7, P6_0, P6_5–P6_7, P7_6, P7_7, P8_0–P8_3 | CMOS I/O ports | 36 programmable I/O pins with software-selectable pull-up resistors and high-current drive capability |
Key Features
| Feature | Design Value |
|---|---|
| USB OTG Controller | Hardware-supported On-The-Go with automatic SOF scheduling, programmable interrupt intervals, and dual-role negotiation without firmware overhead |
| Data Flash with BGO | 10 KB (4 × 1 KB blocks) supports background erase/write while executing code from main ROM - enables field firmware updates without system halt |
| Low-Power Operation | 2.0 µA in stop mode and 4.0 µA in wait mode at 3.0 V - suitable for battery-powered USB peripherals with wake-on-USB-event capability |
| Integrated Analog Subsystem | 12-channel 10-bit A/D with sample-and-hold and sweep mode, plus two independent comparator B circuits for threshold monitoring and window detection |
| Flexible Clock System | Four clock sources: XIN/XOUT crystal, high-speed on-chip oscillator (adjustable), low-speed on-chip oscillator, and PLL synthesizer - enables dynamic frequency scaling and fail-safe clock switching |
Applications
| Industrial USB Host Terminal | USB-Enabled Smart Sensor Hub |
|---|---|
|
Use Scenario: Standalone industrial HMI terminal connecting to USB printers, flash drives, and configuration dongles in factory-floor environments. IC Role / Device Role / Timing Role: Primary MCU with integrated USB host controller, managing enumeration, mass storage class drivers, and real-time control logic. Use Value: Eliminates external USB PHY and host controller IC; 128 KB ROM accommodates FAT32 stack and UI firmware; −40°C to +85°C rating ensures reliability in uncontrolled environments. |
Use Scenario: Multi-sensor node aggregating temperature, humidity, and pressure readings, then uploading via USB to PC-based analytics tools. IC Role / Device Role / Timing Role: Sensor fusion processor with USB device interface, performing ADC sampling, calibration, and packetized data transmission. Use Value: Integrated 12-channel 10-bit ADC and USB device controller reduce BOM count; data flash BGO allows over-the-air firmware patching without interrupting sensor logging. |
| USB OTG Medical Diagnostic Tool | Consumer Audio Control Bridge |
|
Use Scenario: Portable diagnostic instrument that acts as USB host to read patient data from legacy medical devices and as USB device to export reports to hospital PCs. IC Role / Device Role / Timing Role: Dual-role USB OTG controller with hardware ID detection, automatic role switching, and robust VBUS management. Use Value: USB_ID pin and OTG-specific signals (USB_EXICEN, USB_VBUSEN) enable seamless role negotiation; industrial temp grade supports clinical use cases. |
Use Scenario: Remote control bridge translating IR/Bluetooth commands into USB HID keyboard/mouse events for smart TVs and streaming boxes. IC Role / Device Role / Timing Role: USB device controller implementing HID class with low-latency interrupt endpoints for real-time command delivery. Use Value: Dedicated USB interrupt transfer pipes (PIPE6/7) ensure sub-10 ms response; 48-pin LQFP simplifies layout for compact remote PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21348KDFP | 64 KB program ROM, 8 KB data flash, same 48-pin LQFP package and USB OTG peripheral set | Suitable for cost-sensitive USB host designs with smaller firmware footprint and reduced data logging requirements | Select when full 128 KB ROM is unnecessary and BOM cost reduction is prioritized over future firmware scalability |
| R5F2134CKNFP | Identical 128 KB/10 KB/8 KB memory and USB OTG features, but rated for −20°C to +85°C (N version) | Applicable in commercial-grade consumer electronics where extended industrial temperature range is not required | Choose for non-industrial environments to leverage identical firmware compatibility with relaxed thermal qualification |
Compared with R5F2134CKDFP#V0, R5F21348KDFP offers lower memory capacity at reduced cost for simpler USB host tasks, while R5F2134CKNFP maintains identical functionality with commercial temperature grading - enabling firmware reuse across product tiers without hardware redesign.
Availability
R5F2134CKDFP#V0 is available at Aetrix Electronics and suitable for industrial USB host terminals, smart sensor hubs, medical diagnostic tools, and consumer audio bridges requiring stable component supply and long-term manufacturability.
Supply support for R5F2134CKDFP#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/34K Group, including R5F2134CKDFP#V0, was engineered for cost-effective, low-power embedded systems requiring USB connectivity, integrated analog peripherals, and industrial-grade reliability in compact form factors.
FAQ
What USB speed and device classes does the R5F2134CKDFP#V0 support?
The R5F2134CKDFP#V0 supports USB 2.0 Full Speed (12 Mbps) and implements a hardware USB OTG controller with DCP, bulk, and interrupt transfer types. It natively supports USB device class operation (e.g., HID, CDC, MSC) and host class functions (e.g., mass storage, HID host) - all managed by on-chip firmware without external PHY. The R5F2134CKDFP#V0 does not support High-Speed (480 Mbps) or USB 3.x protocols.
Does the R5F2134CKDFP#V0 include an internal USB transceiver?
Yes, the R5F2134CKDFP#V0 integrates a full USB 2.0 Full Speed transceiver with differential D+ and D− drivers/receivers, eliminating the need for external PHY components. Pins USB_DP and USB_DM connect directly to the USB connector, while USB_VBUS, USB_ID, and USB_VBUSEN enable compliant OTG power and role detection per USB specification.
What is the purpose of the data flash blocks in the R5F2134CKDFP#V0?
The R5F2134CKDFP#V0 contains 10 KB of data flash organized as four 1 KB blocks (A–D), supporting background operation (BGO) for concurrent read/erase/write. This enables safe firmware updates, parameter storage, and event logging without halting CPU execution - critical for uninterrupted operation in industrial USB host or sensor applications using the R5F2134CKDFP#V0.
How does the R5F2134CKDFP#V0 handle USB OTG role switching?
The R5F2134CKDFP#V0 uses the USB_ID pin to detect micro-AB connector orientation and automatically configures as host or device. Hardware signals USB_EXICEN and USB_VBUSEN manage external power switches, while USB_OVRCURA/B monitor overcurrent conditions. This deterministic, hardware-assisted OTG negotiation requires no software polling and meets USB On-The-Go Supplement v2.0 timing requirements.
What are the key differences between the R5F2134CKDFP#V0 and R5F21348KDFP?
The R5F2134CKDFP#V0 provides 128 KB program ROM and 10 KB data flash, whereas R5F21348KDFP offers 64 KB program ROM and 8 KB data flash. Both share identical 48-pin LQFP packaging, USB OTG controller, 12-channel 10-bit ADC, and −40°C to +85°C industrial temperature rating. Firmware built for R5F2134CKDFP#V0 may require size optimization to fit R5F21348KDFP's smaller memory footprint.
R5F2134CKDFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- R8C/3x/34K
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R8C
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SIO, SSU, UART/USART, USB
- Peripherals:
- POR, PWM, Voltage Detect, WDT
- Number of I/O:
- 36
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 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:
R5F2134CKDFP#V0 FAQ
1.How can I place an order for R5F2134CKDFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F2134CKDFP#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 R5F2134CKDFP#V0 reliable?
The price and inventory of R5F2134CKDFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F2134CKDFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F2134CKDFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F2134CKDFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F2134CKDFP#V0?
R5F2134CKDFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F2134CKDFP#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 R5F2134CKDFP#V0?
For technical support, including R5F2134CKDFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F2134CKDFP#V0 requirements.
6.How does Aetrix verify that R5F2134CKDFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F2134CKDFP#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 R5F2134CKDFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F2134CKDFP#V0?
All R5F2134CKDFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F2134CKDFP#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 R5F2134CKDFP#V0 part is unused and in its original packaging.
Return procedure for R5F2134CKDFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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