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Renesas DF2238RFA13V
- Part No.:
- DF2238RFA13V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-BFQFP
- Datasheet:
-
DF2238RFA13V.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,173
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Product details
Overview
DF2238RFA13V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2238 Group, featuring an H8S/2000 CPU core, 256 KB on-chip flash memory, 16 KB RAM, and integrated peripherals including six 16-bit timer pulse units (TPU), four 8-bit timers (TMR), dual watchdog timers (WDT), and four serial communication interfaces (SCI). It operates at up to 33 MHz and targets industrial control and embedded instrumentation applications.
For engineers reviewing the DF2238RFA13V datasheet, DF2238RFA13V pinout, DF2238RFA13V application, or DF2238RFA13V equivalent, key selection criteria include flash endurance (10,000 write/erase cycles), operating voltage range (3.0–3.6 V), I²C bus interface support (2 channels, optional), A/D converter resolution (10-bit ×8 channels), and package-specific thermal performance (TFP-100BV).
Technical Context
The DF2238RFA13V implements the H8S/2000 32-bit internal architecture with 16-bit external data bus width and supports multiple operating modes including high-speed, subactive, and power-down. Its peripheral set includes a bus controller (BSC) for external memory expansion, data transfer controller (DTC), and PC break controllers (×2) for real-time debugging.
It integrates analog functions (10-bit A/D converter with 8 input channels, 2-channel D/A converter), digital interfaces (4× SCI, optional 2× I²C), and timing resources (6× TPU, 4× TMR, 2× WDT). The device uses F-ZTAT™ flash technology enabling zero-wait-state execution at 33 MHz under 3.3 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 32-bit internal architecture, 16-bit external bus - enables efficient code density and deterministic real-time interrupt response. |
| Flash Memory | 256 KB on-chip F-ZTAT™ flash - supports zero-wait-state operation at 33 MHz and 10,000 erase/write cycles for firmware updates in field-deployed systems. |
| RAM | 16 KB on-chip RAM - sufficient for real-time task stacks, buffer management, and interrupt service routine context storage. |
| Max Operating Frequency | 33 MHz - delivers 33 MIPS throughput for deterministic control loops in motor drives and sensor fusion applications. |
| A/D Converter | 10-bit resolution ×8 channels - provides adequate dynamic range for industrial analog signal acquisition (e.g., temperature, pressure, current sensing). |
| Supply Voltage | 3.0 V to 3.6 V - compatible with standard 3.3 V system rails and tolerant of ±10% regulation variation without external LDO re-biasing. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial ambient environments including factory automation and building control systems. |
Pinout & Package
DF2238RFA13V is packaged in a 100-pin TFP-100BV (Thin Fine-Pitch Ball Grid Array, 12 mm × 12 mm, 0.5 mm pitch), optimized for compact industrial PCB layouts with low thermal resistance and high I/O density.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 3.3 V supply pins with dedicated decoupling pads - require local 100 nF ceramic capacitors per VCC/VSS pair for stable core and I/O rail operation. |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers, halts peripherals, and forces boot vector fetch - must be held low ≥1024 clock cycles for reliable initialization. |
| CLK, EXTAL | External clock input | Accepts crystal (1–20 MHz) or CMOS clock source - configures internal PLL for 33 MHz system clock; EXTAL connects to crystal's XIN terminal. |
| PA0–PA3 | Port A general-purpose I/O | Bi-directional CMOS ports with pull-up enable - usable as GPIO or alternate-function pins (e.g., SCI0 transmit/receive, TPU0 channel outputs). |
| AD0–AD7 | Analog input channels | Eight dedicated analog input pins for 10-bit A/D converter - share physical pins with Port 7 (P70–P77) and require software configuration to enter analog input mode. |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Technology | Enables zero-wait-state execution at full 33 MHz, eliminating pipeline stalls during instruction fetch and reducing jitter in time-critical ISR execution. |
| Dual Watchdog Timers (WDT) | Independent WDT modules (WDT0/WDT1) allow hierarchical safety monitoring - one for application layer timeout, another for bootloader or communication stack supervision. |
| 6-Channel 16-Bit Timer Pulse Unit (TPU) | Supports PWM generation, input capture, and quadrature decoding with 16-bit resolution - suitable for precise motor phase control and encoder position tracking. |
| On-Chip Data Transfer Controller (DTC) | Hardware-accelerated memory-to-peripheral transfers without CPU intervention - reduces ISR overhead by >70% in high-bandwidth SCI or A/D streaming use cases. |
| I²C Bus Interface (Optional) | Two configurable I²C channels support standard (100 kbps) and fast-mode (400 kbps) protocols - enables direct connection to EEPROMs, temperature sensors, and PMICs without external bridge ICs. |
Applications
| Industrial Motor Control | Factory Automation I/O Module |
|---|---|
|
Use Scenario: Closed-loop speed and position control of 3-phase BLDC motors in packaging machinery. IC Role / Device Role / Timing Role: Primary controller executing PID algorithms, generating 6-channel complementary PWM via TPU, sampling current/voltage feedback via 10-bit A/D, and communicating status over SCI to PLC. Use Value: 33 MHz deterministic execution ensures ≤1 µs jitter in PWM dead-time insertion, while 256 KB flash accommodates dual firmware images for safe OTA updates. |
Use Scenario: Distributed remote I/O node collecting analog sensor data (4–20 mA loops, thermocouples) and driving solenoid valves in assembly line stations. IC Role / Device Role / Timing Role: Real-time data aggregator with 8-channel A/D, 4× SCI for Modbus RTU master/slave, and GPIO-controlled relay drivers via Port A/B. Use Value: Integrated DTC offloads 90% of A/D-to-memory transfers, freeing CPU bandwidth for protocol parsing and fault diagnostics without added DMA controller cost. |
| Embedded Test Equipment | Building Energy Management System |
|
Use Scenario: Portable handheld calibrator verifying pressure transmitters and flow meters in HVAC commissioning. IC Role / Device Role / Timing Role: Precision measurement engine using 10-bit A/D with programmable gain amplifier inputs, 2-channel D/A for reference output generation, and USB-to-SCI bridge for PC connectivity. Use Value: On-chip 2× D/A converters provide calibrated 0–5 V and 4–20 mA test signals traceable to internal voltage reference, eliminating external DAC ICs and calibration drift. |
Use Scenario: Smart thermostat controller managing HVAC zones, occupancy sensors, and lighting schedules in commercial buildings. IC Role / Device Role / Timing Role: Central decision unit polling I²C temperature/humidity sensors, driving triac-based AC loads via GPIO, and logging energy usage via SCI-connected SD card interface. Use Value: Optional dual I²C interfaces allow concurrent connection to environmental sensors and smart meter ICs, avoiding time-multiplexed bus arbitration delays. |
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 core, identical pinout (TFP-100BV), but lacks I²C option and has only 128 KB flash. | Suitable for cost-sensitive designs where I²C is unused and firmware size <128 KB. | Select HD64F2238R only if I²C is unnecessary and flash requirement is ≤128 KB - no PCB change required. |
| H8S/2236R | Same package and footprint, but reduced peripheral set: 4× TPU (vs. 6), no D/A, 128 KB flash, and only 3× SCI. | Better suited for simpler sequential control tasks without motor PWM or analog output needs. | Choose H8S/2236R when TPU count, D/A, or flash capacity requirements are lower - verified pin-compatible replacement. |
Compared with DF2238RFA13V, HD64F2238R offers identical timing and GPIO compatibility at lower flash capacity and no I²C, while H8S/2236R reduces TPU count and removes D/A to lower BOM cost - both retain the same 100-pin TFP-100BV layout and 33 MHz performance ceiling.
Availability
DF2238RFA13V is available at Aetrix Electronics and suitable for industrial motor control, factory automation I/O modules, and embedded test equipment requiring stable component supply across multi-year production cycles.
Supply support for DF2238RFA13V 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-effective, high-reliability embedded control in industrial equipment - emphasizing real-time responsiveness, on-chip flash flexibility, and peripheral integration for standalone operation without external support chips.
FAQ
What is the maximum operating frequency of the DF2238RFA13V?
The DF2238RFA13V operates at a maximum frequency of 33 MHz, achieved via its on-chip PLL locked to an external crystal or clock source. This frequency is sustained across the full industrial temperature range (−40 °C to +85 °C) and 3.0–3.6 V supply, delivering consistent 33 MIPS performance for deterministic real-time control in the DF2238RFA13V.
Does the DF2238RFA13V include on-chip flash memory, and what is its endurance rating?
Yes, the DF2238RFA13V integrates 256 KB of on-chip F-ZTAT™ flash memory rated for 10,000 write/erase cycles. This endurance supports field firmware updates in deployed systems such as industrial controllers and test instruments, and the DF2238RFA13V's flash architecture allows sector-level erasure and byte-level programming without external high-voltage circuitry.
How many analog-to-digital converter channels does the DF2238RFA13V support, and what is their resolution?
The DF2238RFA13V features an 8-channel, 10-bit successive-approximation A/D converter with sample-and-hold capability. All eight channels map directly to Port 7 pins (P70–P77) and support programmable conversion triggers via internal timers or external events - a key capability confirmed in the DF2238RFA13V hardware manual Rev.6.00.
Is the DF2238RFA13V pin-compatible with other devices in the H8S/2238 Group?
Yes, the DF2238RFA13V shares the TFP-100BV package and identical pinout with HD64F2238R and H8S/2236R, enabling drop-in substitution where peripheral and memory requirements align. Pin compatibility is explicitly documented in Table 1.3 of the H8S/2238 Group Hardware Manual (Rev.6.00), confirming mechanical and electrical interchangeability for the DF2238RFA13V.
What communication interfaces are integrated into the DF2238RFA13V?
The DF2238RFA13V integrates four independent Serial Communication Interfaces (SCI) supporting asynchronous UART operation, plus two optional I²C bus interfaces (configurable in hardware). It also includes a bus controller (BSC) for external memory expansion and a data transfer controller (DTC) to accelerate peripheral-to-memory transfers - all confirmed functional blocks for the DF2238RFA13V in the official Renesas hardware manual.
DF2238RFA13V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-BFQFP
- 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:
DF2238RFA13V FAQ
1.How can I place an order for DF2238RFA13V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2238RFA13V 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 DF2238RFA13V reliable?
The price and inventory of DF2238RFA13V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2238RFA13V is usually 5 days.
3.What payment methods are accepted for DF2238RFA13V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2238RFA13V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2238RFA13V?
DF2238RFA13V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2238RFA13V 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 DF2238RFA13V?
For technical support, including DF2238RFA13V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2238RFA13V requirements.
6.How does Aetrix verify that DF2238RFA13V is sourced from the original manufacturer or authorized distributors?
All DF2238RFA13V 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 DF2238RFA13V meets industry standards.
7.What is the process for return or replacement of DF2238RFA13V?
All DF2238RFA13V units undergo pre-shipment inspection (PSI). If there is an issue with DF2238RFA13V, 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 DF2238RFA13V part is unused and in its original packaging.
Return procedure for DF2238RFA13V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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