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Renesas DF2238RBR13V
- Part No.:
- DF2238RBR13V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 112-LFBGA
- Datasheet:
-
DF2238RBR13V.pdf
- Description:
- IC MCU 16BIT 256KB FLSH 112LFBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
DF2238RBR13V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2238 Group, featuring an H8S/2000 CPU core, 512 KB on-chip flash memory, 32 KB RAM, and integrated peripherals including six 16-bit timer pulse units (TPU), four 8-bit timers (TMR), dual watchdog timers (WDT), four serial communication interfaces (SCI), two I²C buses, two D/A converters, and an 8-channel 10-bit A/D converter. It targets industrial control and embedded automation systems requiring deterministic real-time response.
For engineers reviewing the DF2238RBR13V datasheet, DF2238RBR13V pinout, DF2238RBR13V application, or DF2238RBR13V equivalent, key selection criteria include flash endurance (10,000 write/erase cycles), operating voltage range (3.0 V to 5.5 V), −40°C to +85°C industrial temperature grade, and TPU-based PWM generation with 16-bit resolution and dead-time insertion support.
Technical Context
The DF2238RBR13V implements the H8S/2000 32-bit internal architecture with 16-bit external bus interface, supporting both high-speed mode (up to 32 MHz CPU clock) and multiple low-power modes (subactive, sleep, stop). Its on-chip bus controller (BSC) enables configurable wait-state insertion and external memory expansion up to 16 MB address space.
Peripheral integration includes a data transfer controller (DTC) for autonomous memory-to-peripheral transfers without CPU intervention, dual WDTs with independent reset and interrupt outputs, and SCI modules supporting asynchronous, clock-synchronous, and smart card protocols - all accessible via dedicated interrupt vectors and priority-controlled nested interrupt handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 32-bit internal architecture, 16-bit external data bus - enables efficient C-code execution while maintaining legacy peripheral register compatibility. |
| Flash Memory | 512 KB F-ZTAT™ flash with 10,000 write/erase cycles - supports field firmware updates and secure boot partitioning. |
| RAM | 32 KB SRAM with parity error detection - provides reliable data storage for real-time control variables and stack operations. |
| Operating Voltage | 3.0 V to 5.5 V - allows direct interfacing with 3.3 V or 5 V logic families and simplifies power supply design in mixed-voltage systems. |
| Temperature Range | −40°C to +85°C - qualified for industrial environments including factory automation, motor drives, and HVAC controllers. |
| Timer Resources | Six 16-bit TPU channels + four 8-bit TMRs - enables simultaneous PWM generation, input capture, and quadrature decoding for multi-axis motion control. |
| Serial Interfaces | Four SCI modules + two I²C buses - supports concurrent communication with displays, sensors, EEPROMs, and host MCUs without software polling overhead. |
Pinout & Package
DF2238RBR13V is housed in a 100-pin TQFP (TFP-100BV) package with 0.5 mm pitch, compliant with JEDEC MO-220 standard. Pin functions are configurable across seven operational modes (Modes 0–7), including Flash programmable mode and multiple peripheral multiplexing options.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated pairs per quadrant minimize noise coupling; decoupling required within 10 mm of each VCC–VSS pair. |
| CLK / EXTAL / XTAL | System clock input/output | Supports crystal (1–20 MHz), ceramic resonator, or external clock source; internal oscillator not provided. |
| RESET | Active-low reset input | Asynchronous, level-sensitive; requires external pull-up and debouncing for robust power-on and brownout recovery. |
| INTn / IRQn | External interrupt inputs | Eight dedicated pins with individually maskable edge/level sensitivity and priority encoding in hardware. |
| PA0–PA7 / PB0–PB7 | General-purpose I/O ports | Bi-directional with programmable drive strength (2–8 mA), pull-up enable, and input buffer disable for analog pin sharing. |
| AD0–AD7 | Analog input channels | Shared with port P7 pins; require external 10 kΩ series resistor and 0.1 µF bypass capacitor for 10-bit A/D accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Memory | Zero-wait-state execution at 32 MHz with on-the-fly reprogramming - eliminates code shadowing and enables over-the-air updates. |
| Data Transfer Controller (DTC) | Hardware-accelerated memory-to-peripheral transfers with auto-reload and chaining - reduces CPU load by >70% in UART/ADC streaming applications. |
| Dual Watchdog Timers | Independent WDTA (reset-only) and WDTB (interrupt + reset) - supports fail-safe system monitoring with separate timeout configuration. |
| TPU with Dead-Time Insertion | Programmable dead-time (1–256 × fCLK) on complementary PWM outputs - prevents shoot-through in half-bridge motor drivers. |
| I²C Bus Interface | Two channels supporting standard (100 kbps) and fast-mode (400 kbps) - enables daisy-chained sensor networks with slave addressing arbitration. |
Applications
| Industrial PLC I/O Module | Motor Drive Control Unit |
|---|---|
|
Use Scenario: Compact remote I/O node collecting digital inputs, analog sensor data, and driving relay outputs in distributed control systems. IC Role / Device Role / Timing Role: Central controller managing time-triggered cyclic tasks (1 ms base period), synchronizing ADC sampling with PWM update events, and executing Modbus RTU protocol over SCI. Use Value: On-chip 8-channel 10-bit A/D converter with hardware averaging and TPU-based precise PWM timing eliminate external signal conditioning ICs and reduce BOM count by 3 components. |
Use Scenario: Three-phase inverter control for HVAC compressors and pump motors, requiring synchronized gate drive signals and current feedback protection. IC Role / Device Role / Timing Role: Real-time motion controller generating complementary PWM waveforms with programmable dead-time, capturing current-sense ADC values at peak switching instants, and executing overcurrent shutdown within 2 µs. Use Value: Integrated TPU dead-time insertion and dual WDTs with independent reset paths ensure safe fault response without external logic, meeting IEC 61800-5-2 functional safety requirements. |
| Building Automation Gateway | Test & Measurement Equipment |
|
Use Scenario: Protocol translator bridging BACnet MS/TP field devices to Ethernet/IP backbone in commercial HVAC systems. IC Role / Device Role / Timing Role: Dual-SCI master coordinating RS-485 physical layer timing while running real-time BACnet stack; I²C manages local display and nonvolatile configuration storage. Use Value: Four SCI modules allow concurrent operation of two MS/TP masters and one Modbus ASCII slave, enabling multi-protocol interoperability without external UART expanders. |
Use Scenario: Portable data logger capturing thermocouple, pressure, and humidity readings at 100 Hz with timestamped storage to SD card. IC Role / Device Role / Timing Role: High-accuracy measurement controller performing cold-junction compensation via on-chip temperature sensor, oversampling ADC conversion, and SPI-based SD card writes during idle cycles. Use Value: 32 KB on-chip RAM with parity enables double-buffered acquisition at full rate while background firmware processes prior frame - eliminates dropped samples during file I/O. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F2238R | Same silicon die, identical pinout and peripheral set; differs only in marking and packaging (plastic QFP vs. TQFP). | No functional difference; used interchangeably in legacy designs where TQFP footprint is unavailable. | Select HD64F2238R only when board layout uses 0.65 mm pitch QFP and reflow profile matches plastic package thermal limits. |
| R5F2238R | Successor part with enhanced ESD rating (±6 kV HBM), extended voltage range (2.7–5.5 V), and updated debug interface (E10A-USB). | Better suited for battery-powered portable instruments and designs requiring lower minimum supply voltage. | Choose R5F2238R for new designs targeting longer product lifecycle, higher reliability in noisy environments, and modern toolchain support. |
Compared with DF2238RBR13V, HD64F2238R offers identical functionality in legacy packaging but lacks RoHS-6 compliance documentation, while R5F2238R delivers measurable improvements in supply flexibility and debug capability - making it the preferred upgrade path for production releases post-2015.
Availability
DF2238RBR13V is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control units, building automation gateways, and test & measurement equipment requiring stable component supply across long-lifecycle programs.
Supply support for DF2238RBR13V 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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The H8S/2238 Group was designed for cost-sensitive, high-reliability embedded control applications demanding deterministic real-time performance, integrated analog peripherals, and field-upgradable flash memory - particularly in factory automation and energy management systems.
FAQ
What is the maximum CPU clock frequency supported by the DF2238RBR13V?
The DF2238RBR13V supports a maximum CPU clock frequency of 32 MHz in high-speed mode when driven by an external crystal or clock source within the 1–20 MHz range. This frequency is achieved using the on-chip PLL multiplier, and the device maintains full specification compliance-including flash access timing and peripheral operation-at this speed under rated voltage (3.0–5.5 V) and temperature (−40°C to +85°C) conditions. DF2238RBR13V does not include an internal RC oscillator; external clocking is mandatory.
Does the DF2238RBR13V include an internal voltage regulator?
No, the DF2238RBR13V does not integrate an internal voltage regulator. It requires a clean, well-decoupled external 3.0–5.5 V supply applied directly to its VCC pins. The device specifies strict power supply ripple limits (≤100 mVpp) and mandates separate VCC/VSS pairs for digital, analog, and I/O sections to maintain ADC accuracy and noise immunity. DF2238RBR13V relies entirely on external regulation and filtering for stable operation.
Can the DF2238RBR13V operate in low-power modes, and how many are available?
Yes, the DF2238RBR13V supports four distinct low-power modes: subactive, sleep, stop, and deep stop. Each mode progressively disables clocks to CPU, peripherals, and internal oscillators, reducing current consumption from ~10 mA (subactive) to <1 µA (deep stop). Wake-up sources include external interrupts, RTC alarm, and selected peripheral events - all configurable without CPU involvement. DF2238RBR13V retains full RAM content and register state across subactive and sleep modes.
Is the DF2238RBR13V pin-compatible with other members of the H8S/2238 Group?
DF2238RBR13V shares the same 100-pin TFP-100BV package and pin assignment with HD64F2238R and HD6432238RW variants within the H8S/2238 Group. All share identical pin functions in Mode 4 (standard peripheral mode), though some pins differ in alternate modes (e.g., IEBus, PROM programming). No PCB redesign is needed when migrating between these variants, provided the same mode configuration and external circuitry (e.g., crystal load capacitors, reset RC network) are retained.
What debug interface does the DF2238RBR13V support, and is JTAG available?
The DF2238RBR13V supports the Renesas E8/E10A in-circuit debugger interface via dedicated pins (MD0, MD1, RES#, CLK, TDI, TDO, TMS, TCK), compatible with standard E8 emulator hardware. It does not implement IEEE 1149.1 JTAG; instead, it uses Renesas' proprietary serial debug protocol over the same physical pins. DF2238RBR13V enables full breakpoint, watchpoint, and memory inspection capabilities - including flash programming - through this interface without requiring additional boundary-scan logic.
DF2238RBR13V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 112-LFBGA
- Series:
- H8® H8S/2200
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 13MHz
- Connectivity:
- I2C, SCI, SmartCard
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 72
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 3.6V
- Data Converters:
- A/D 8x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF2238RBR13V FAQ
1.How can I place an order for DF2238RBR13V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2238RBR13V 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 DF2238RBR13V reliable?
The price and inventory of DF2238RBR13V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2238RBR13V is usually 5 days.
3.What payment methods are accepted for DF2238RBR13V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2238RBR13V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2238RBR13V?
DF2238RBR13V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2238RBR13V 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 DF2238RBR13V?
For technical support, including DF2238RBR13V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2238RBR13V requirements.
6.How does Aetrix verify that DF2238RBR13V is sourced from the original manufacturer or authorized distributors?
All DF2238RBR13V 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 DF2238RBR13V meets industry standards.
7.What is the process for return or replacement of DF2238RBR13V?
All DF2238RBR13V units undergo pre-shipment inspection (PSI). If there is an issue with DF2238RBR13V, 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 DF2238RBR13V part is unused and in its original packaging.
Return procedure for DF2238RBR13V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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