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Renesas DF2238BFA13
- Part No.:
- DF2238BFA13
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-BFQFP
- Datasheet:
-
DF2238BFA13.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100QFP
- Quantity:
- Payment:
- Shipping:
Inventory:783
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Product details
Overview
DF2238BFA13 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 operates at up to 33 MHz and targets industrial control and embedded instrumentation.
For engineers reviewing the DF2238BFA13 datasheet, DF2238BFA13 pinout, DF2238BFA13 application, or DF2238BFA13 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 TQFP-100 package compatibility with H8S/2238B family layout conventions.
Technical Context
The DF2238BFA13 implements the H8S/2000 32-bit internal architecture with 16-bit external data bus, supporting both high-speed and subactive power-down modes. Its bus controller (BSC) provides 16-bit external bus interface with wait-state control, while the data transfer controller (DTC) enables autonomous memory-to-peripheral transfers without CPU intervention.
Peripheral integration includes dual SCI modules supporting asynchronous and clock-synchronous modes, two I²C interfaces configurable as master or slave, and a dedicated IEBus™ controller for legacy automotive equipment communication. The analog subsystem combines 8-channel 10-bit SAR ADC with sample-and-hold and dual 8-bit current-output DACs for sensor feedback and actuator drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 32-bit internal architecture with 16-bit external bus; enables efficient C-language execution and real-time deterministic interrupt handling. |
| Flash Memory | 512 KB on-chip flash (F-ZTAT™); supports in-system programming with 10,000 erase/write cycles and 10-year data retention at 85°C. |
| RAM | 32 KB on-chip SRAM; accessible at full CPU speed for stack, variables, and real-time buffers without wait states. |
| Max Clock Frequency | 33 MHz system clock; delivers 33 MIPS performance with zero-wait-state operation under 3.3 V supply. |
| A/D Converter | 8-channel 10-bit successive approximation ADC; 1.2 μs conversion time per channel with built-in sample-and-hold for multi-sensor acquisition. |
| D/A Converters | Two 8-bit current-output DACs; provide programmable analog bias or control signals for op-amp interfaces or motor current regulation. |
| Operating Voltage | 3.0 V to 5.5 V single supply; eliminates need for external voltage regulators in mixed-voltage industrial systems. |
| Temperature Range | -40°C to +85°C industrial grade; qualified per Renesas Standard quality level for factory automation and test equipment. |
Pinout & Package
DF2238BFA13 is housed in a 100-pin Thin Quad Flat Package (TQFP) with 0.5 mm pitch, designated TFP-100BV per Renesas documentation. Pin functions are mode-configurable via on-chip registers, supporting multiple peripheral multiplexing options including Flash programming mode (Mode 7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated pairs distributed across package edges to minimize IR drop and noise coupling in mixed-signal operation. |
| XTAL, EXTAL | Crystal oscillator input/output | Supports 1–20 MHz crystal or external clock source; internal oscillator circuitry enables stable startup without external load capacitors. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts 100 ns minimum pulse width for reliable recovery from brownout or watchdog timeout. |
| IRQ0–IRQ7 | External interrupt inputs | Eight edge-triggered inputs with individually maskable priority; support fast response to encoder pulses or safety interlock signals. |
| PA0–PA7 | Port A general-purpose I/O | 8-bit bi-directional port with individual direction control; default function includes analog input channels AD0–AD7 for ADC mapping. |
| SCI0_TXD / SCI0_RXD | Serial communication interface 0 | Full-duplex UART/IrDA-capable pins; support baud rates up to 2 Mbps with fractional baud rate generator for precise timing. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip F-ZTAT™ Flash | Enables field firmware updates without external programmers; supports sector erase and byte-write for incremental patch deployment. |
| Dual Watchdog Timers | Independent WDT0 (system-level) and WDT1 (application-level) allow layered safety monitoring with separate timeout and reset policies. |
| Data Transfer Controller (DTC) | Offloads CPU during peripheral transfers; supports scatter-gather DMA-like operations for ADC-to-memory or SCI-to-buffer sequences. |
| I²C Bus Interface (x2) | Two independent I²C modules with SMBus compatibility; support multi-master arbitration and 10-bit addressing for sensor hub expansion. |
| IEBus™ Controller | Dedicated hardware block compliant with NEC IEBus v2.0 standard; enables direct connection to automotive audio and climate control modules. |
| Power Management Modes | Four low-power states (wait, stop, subactive, deep stop) with wake-up via IRQ, RTC alarm, or external pin; reduces active current to 12 mA at 33 MHz. |
Applications
| Industrial PLC I/O Module | Factory Automation Controller |
|---|---|
|
Use Scenario: Real-time monitoring of 8 analog sensors (temperature, pressure, flow) and driving 2 analog actuators in a DIN-rail mounted I/O terminal. IC Role / Device Role / Timing Role: Central controller executing cyclic scan logic, managing ADC sampling synchronization, and updating DAC outputs every 10 ms. Use Value: Integrated 8-channel 10-bit ADC and dual 8-bit DAC eliminate external signal conditioning ICs, reducing BOM count and PCB area by 35%. |
Use Scenario: Standalone motion controller coordinating stepper motor positioning and limit switch monitoring in packaging machinery. IC Role / Device Role / Timing Role: Real-time executor of position interpolation algorithms using six 16-bit TPUs for precise PWM generation and quadrature decoding. Use Value: Six independent 16-bit timer pulse units enable simultaneous control of 3 axes with 0.1% duty cycle resolution at 20 kHz switching frequency. |
| Test Equipment Front-End | Embedded Data Logger |
|
Use Scenario: Signal acquisition front-end in portable multimeter with auto-ranging, true RMS calculation, and USB host interface. IC Role / Device Role / Timing Role: High-precision measurement engine performing synchronized 10-bit ADC sampling, digital filtering, and display refresh at 25 Hz. Use Value: On-chip 32 KB RAM provides sufficient buffer space for 1-second waveform capture at 10 kS/s without external memory. |
Use Scenario: Battery-powered environmental monitor logging temperature, humidity, and CO₂ levels every 5 minutes over 6 months. IC Role / Device Role / Timing Role: Ultra-low-power supervisor managing RTC wake-up, sensor polling, flash write consolidation, and sleep state transitions. Use Value: Subactive mode draws only 25 μA, extending CR2032 battery life beyond 200 days with 512 KB flash enabling 100,000+ data records. |
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 H8S/2238 core but with ROM-based program memory instead of flash; no in-field reprogrammability. | Suitable for cost-sensitive, fixed-function designs where firmware never changes post-manufacture. | Select HD64F2238R only if firmware stability and lower unit cost outweigh need for field updates. |
| R5F52238 | RX220-series 32-bit MCU with 12-bit ADC, 64 KB flash, and enhanced EMI immunity; not pin-compatible. | Better suited for next-generation designs requiring higher precision, larger code space, or functional safety compliance. | Choose R5F52238 when migrating to Renesas RX architecture for improved performance and toolchain continuity. |
Compared with HD64F2238R and R5F52238, DF2238BFA13 uniquely balances mature H8S ecosystem support, field-upgradable flash, and industrial-grade analog integration - making it optimal for sustaining existing H8S-based platforms without redesigning PCB layouts or firmware architecture.
Availability
DF2238BFA13 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, factory automation controllers, test equipment front-ends, and embedded data loggers requiring stable component supply across extended production lifecycles.
Supply support for DF2238BFA13 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, including DF2238BFA13, was designed for cost-effective, real-time embedded control in industrial instrumentation and factory automation where deterministic timing, analog integration, and long-term supply stability are critical.
FAQ
What is the maximum operating frequency of the DF2238BFA13?
The DF2238BFA13 operates at a maximum system clock frequency of 33 MHz. This speed is achievable across its full industrial temperature range (-40°C to +85°C) and supply voltage range (3.0 V to 5.5 V). At 33 MHz, the DF2238BFA13 delivers approximately 33 MIPS of performance with zero-wait-state execution from on-chip flash memory, enabling responsive real-time control loops in applications such as motor drives and sensor fusion systems.
Does the DF2238BFA13 support in-system programming of its flash memory?
Yes, the DF2238BFA13 supports in-system programming (ISP) of its 512 KB on-chip flash memory via the on-chip debug interface and Mode 7 (Flash Memory Programmable Mode). It requires no external high-voltage programming supply and allows sector erase and byte-write operations with guaranteed endurance of 10,000 cycles and 10-year data retention at 85°C - making DF2238BFA13 suitable for field-upgradable industrial firmware.
What peripheral modules are included in the DF2238BFA13 for analog signal processing?
The DF2238BFA13 integrates an 8-channel 10-bit successive approximation ADC with sample-and-hold capability and two 8-bit current-output DACs. The ADC supports programmable sampling intervals and automatic channel sequencing, while the DACs provide rail-to-rail output current for driving external op-amps or optocouplers. These peripherals are directly mapped to Port A pins (PA0–PA7), enabling compact analog front-end designs without external converters in DF2238BFA13-based systems.
Is the DF2238BFA13 pin-compatible with other devices in the H8S/2238 Group?
Yes, the DF2238BFA13 shares identical pinout and package (TFP-100BV, 100-pin TQFP) with other members of the H8S/2238 Group, including HD64F2238B and HD64F2238R. All share the same physical pin assignments, electrical characteristics, and mode configuration logic - allowing direct substitution in existing PCB layouts when migrating between flash-based and ROM-based variants within the same group.
What power management features does the DF2238BFA13 offer for low-power applications?
The DF2238BFA13 provides four low-power modes: Wait, Stop, Subactive, and Deep Stop. In Subactive mode, it consumes only 25 μA while maintaining RTC operation and retaining RAM contents, enabling battery-powered data logging. Wake-up is supported via external interrupts, RTC alarms, or pin change detection - all configurable without CPU intervention. These features make DF2238BFA13 well-suited for energy-constrained embedded applications requiring long operational life.
DF2238BFA13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-BFQFP
- Series:
- H8® H8S/2200
- Packaging:
- Bag
- Product Status:
- Obsolete
- 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):
- 3V ~ 5.5V
- 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:
DF2238BFA13 FAQ
1.How can I place an order for DF2238BFA13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2238BFA13 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 DF2238BFA13 reliable?
The price and inventory of DF2238BFA13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2238BFA13 is usually 5 days.
3.What payment methods are accepted for DF2238BFA13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2238BFA13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2238BFA13?
DF2238BFA13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2238BFA13 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 DF2238BFA13?
For technical support, including DF2238BFA13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2238BFA13 requirements.
6.How does Aetrix verify that DF2238BFA13 is sourced from the original manufacturer or authorized distributors?
All DF2238BFA13 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 DF2238BFA13 meets industry standards.
7.What is the process for return or replacement of DF2238BFA13?
All DF2238BFA13 units undergo pre-shipment inspection (PSI). If there is an issue with DF2238BFA13, 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 DF2238BFA13 part is unused and in its original packaging.
Return procedure for DF2238BFA13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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