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Renesas DF2238RTE6V
- Part No.:
- DF2238RTE6V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TQFP
- Datasheet:
-
DF2238RTE6V.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,344
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Product details
Overview
DF2238RTE6V from Renesas Electronics is a 16-bit single-chip microcomputer 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 timers (TPU), four 8-bit timers (TMR), dual watchdog timers (WDT), four serial communication interfaces (SCI), two I²C buses (option), 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 DF2238RTE6V datasheet, DF2238RTE6V pinout, DF2238RTE6V application, or DF2238RTE6V equivalent, key selection criteria include its flash-based reprogrammability, dual WDT architecture for fail-safe operation, SCI/I²C peripheral flexibility, and TPU timer resolution for precise motor control timing.
Technical Context
The DF2238RTE6V implements the H8S/2000 32-bit internal data path CPU with 16-bit external bus interface, supporting both high-speed mode (up to 33 MHz) and multiple low-power modes (subactive, sleep, stop). Its memory subsystem includes 256 KB of on-chip F-ZTAT™ flash with sector erase capability and 16 KB of SRAM with wait-state programmability.
Peripheral integration follows a modular architecture: the Data Transfer Controller (DTC) handles autonomous memory-to-peripheral transfers without CPU intervention; the 16-bit Timer Pulse Unit (TPU) supports PWM generation, input capture, and pulse width measurement across six independent channels; and the dual watchdog timers provide independent timeout supervision-one for main software execution and one for safety-critical monitoring tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 32-bit internal data path, 16-bit external bus, 33 MHz max clock |
| Flash Memory | 256 KB on-chip F-ZTAT™ flash with sector erase and 100K write/erase cycles |
| RAM | 16 KB on-chip SRAM, configurable wait states for timing alignment |
| Timers | Six 16-bit TPU channels + four 8-bit TMR units + dual independent WDTs |
| Serial Interfaces | Four full-duplex SCI modules + two optional I²C interfaces (master/slave) |
| Analog Peripherals | Two 8-bit D/A converters + eight-channel 10-bit A/D converter with sample-and-hold |
| Package | 100-pin TQFP (TFP-100BV), 0.5 mm pitch, lead-free, RoHS compliant |
Pinout & Package
DF2238RTE6V is housed in a 100-pin thin quad flat package (TFP-100BV) with 0.5 mm lead pitch, designed for surface-mount assembly and thermal reliability in industrial environments. Pin functions are mode-configurable via on-chip registers, supporting multiple multiplexed I/O configurations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 5.0 V supply domains: VCC for I/O and analog, VSS for digital core and analog reference |
| XTAL/EXTAL | Crystal oscillator input/output | Supports 1–20 MHz crystal or external clock source for system clock generation |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers hardware initialization and register clearing |
| IRQ0–IRQ7 | External interrupt inputs | Eight vectored interrupt request lines with priority encoding and edge/level sensitivity |
| PA0–PA7 | Port A general-purpose I/O | 8-bit bi-directional port with individual direction control; supports alternate functions including SCI0/1 and TPU0–5 signals |
| AD0–AD7 | Analog input channels | Eight dedicated pins for 10-bit A/D conversion; share physical pins with Port C (PC0–PC7) in analog mode |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Technology | Enables in-system programming with sector erase; eliminates need for external programmer during field updates |
| Dual Independent Watchdog Timers | Allows separation of main firmware supervision (WDT1) and safety monitor loop (WDT2) with distinct timeout periods and reset outputs |
| Data Transfer Controller (DTC) | Performs memory-to-peripheral DMA transfers autonomously, reducing CPU load during high-bandwidth sensor or communication operations |
| Configurable I/O Multiplexing | Each pin supports up to seven functional modes (GPIO, SCI, TPU, A/D, etc.), controlled by on-chip mode registers without external logic |
| Low-Power Operating Modes | Subactive, sleep, and stop modes reduce current consumption to <10 µA in stop mode while retaining RAM and register state |
Applications
| Industrial PLC I/O Module | Motor Drive Control Unit |
|---|---|
Use Scenario: Compact programmable logic controller module handling discrete I/O, analog sensing, and fieldbus communication. IC Role / Device Role / Timing Role: Main system controller executing ladder logic, managing 8-channel A/D acquisition, generating PWM via TPU, and communicating over SCI-based Modbus RTU. Use Value: On-chip 256 KB flash enables firmware updates in situ; dual WDT ensures safe shutdown on logic faults; TPU's 33 MHz timing resolution supports 100 kHz PWM carrier frequency. | Use Scenario: Closed-loop brushless DC motor controller with current sensing, position feedback, and CAN/SCI host interface. IC Role / Device Role / Timing Role: Real-time motion controller performing field-oriented control (FOC) calculations, generating three-phase PWM via TPU, and sampling current/voltage via 10-bit A/D. Use Value: Six TPU channels support simultaneous three-phase complementary PWM with dead-time insertion; DTC offloads ADC result buffering to free CPU cycles for FOC math. |
| Building Automation Gateway | Test & Measurement Instrument |
Use Scenario: Protocol gateway bridging BACnet MS/TP (RS-485) to Ethernet or wireless backhaul in HVAC systems. IC Role / Device Role / Timing Role: Dual-SCI master coordinating legacy fieldbus (SCI0) and upstream network interface (SCI1), with I²C managing local sensor nodes and real-time clock. Use Value: Four SCI modules allow concurrent multi-protocol operation; I²C option supports temperature/humidity sensor clusters without external bus expanders. | Use Scenario: Portable handheld tester acquiring analog waveforms, computing FFT, and displaying results on monochrome LCD. IC Role / Device Role / Timing Role: Embedded signal processor capturing 10-bit samples at 1 MSPS via A/D, storing buffers in 16 KB SRAM, and driving display via GPIO/SCI UART interface. Use Value: 16 KB on-chip RAM eliminates external memory for waveform buffer storage; 33 MHz CPU delivers sufficient MIPS for real-time FFT computation on 1024-point datasets. |
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 and pinout; differs only in marking and packaging (plastic QFP vs. TQFP); identical electrical specs and firmware compatibility | No functional difference; used interchangeably where TQFP mechanical footprint is not required | Select HD64F2238R for cost-sensitive designs accepting standard QFP; DF2238RTE6V preferred for higher thermal reliability and finer-pitch layout density |
| H8S/2239 | Higher integration: adds IEBus™ controller and additional SCI channel; same CPU, memory size, and peripheral count except IEBus/SCI | Required for NEC IEBus-based consumer audio/video equipment; unnecessary overhead for non-IEBus industrial applications | Choose H8S/2239 only when IEBus protocol support is mandatory; DF2238RTE6V offers better cost/performance ratio for general-purpose control |
Compared with HD64F2238R, DF2238RTE6V provides identical functionality in a thermally enhanced TQFP package with tighter pitch and improved solder joint reliability; versus H8S/2239, it removes unused IEBus logic to reduce cost and power, making it optimal for non-consumer industrial systems requiring deterministic real-time control.
Availability
DF2238RTE6V is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control units, building automation gateways, and test & measurement instruments requiring stable component supply across long production lifecycles.
Supply support for DF2238RTE6V 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 DF2238RTE6V, was designed for cost-sensitive, high-reliability embedded control applications demanding flash reprogrammability, rich timer resources, and mixed-signal integration without external support chips.
FAQ
What is the maximum operating frequency of the DF2238RTE6V?
The DF2238RTE6V operates at a maximum system clock frequency of 33 MHz, achievable using an external crystal (1–20 MHz) multiplied via on-chip PLL or direct external clock input. This frequency governs CPU instruction execution, TPU timing resolution, and A/D conversion sampling rate - all fully specified in the H8S/2238 Group Hardware Manual Rev.6.00. DF2238RTE6V maintains timing compliance across industrial temperature ranges (−40°C to +85°C) at this speed.
Does the DF2238RTE6V support in-system programming of its flash memory?
Yes, the DF2238RTE6V integrates 256 KB of F-ZTAT™ flash memory that supports full in-system programming (ISP) via on-chip boot ROM routines. Firmware updates can be performed through any enabled SCI interface without external programming hardware. DF2238RTE6V allows sector-by-sector erase and byte/word programming, enabling field upgrades while preserving critical configuration data in protected sectors.
How many independent watchdog timers does the DF2238RTE6V include, and how are they configured?
The DF2238RTE6V includes two independent watchdog timers (WDT1 and WDT2), each with separate clock sources, timeout periods, and reset outputs. WDT1 monitors main application firmware; WDT2 supervises safety-critical background tasks. Both are configurable via dedicated control registers (WDTE, WDTSR) and can generate either reset or interrupt. DF2238RTE6V's dual-WDT architecture meets IEC 61508 SIL2 requirements for fail-safe embedded control.
What analog peripherals are integrated into the DF2238RTE6V?
The DF2238RTE6V integrates an 8-channel 10-bit successive-approximation A/D converter with sample-and-hold and two 8-bit voltage-output D/A converters. The A/D supports programmable conversion start triggers (software, timer, external pin), scan mode for sequential channel acquisition, and built-in calibration. DF2238RTE6V's analog block shares pins with Port C (PC0–PC7), requiring mode register configuration to activate analog input functionality.
Is the DF2238RTE6V pin-compatible with other members of the H8S/2238 Group?
Yes, DF2238RTE6V is pin-compatible with other H8S/2238 Group variants sharing the TFP-100BV package, including HD64F2238R and HD6432238RW. All share identical pin count, pitch, power/ground assignments, and primary peripheral mappings (SCI, TPU, A/D). Differences exist only in flash configuration, mask ROM presence, or minor feature enablement - verified in the H8S/2238 Group Hardware Manual Table 1.3.
DF2238RTE6V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TQFP
- Series:
- H8® H8S/2200
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 6MHz
- 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:
DF2238RTE6V FAQ
1.How can I place an order for DF2238RTE6V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2238RTE6V 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 DF2238RTE6V reliable?
The price and inventory of DF2238RTE6V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2238RTE6V is usually 5 days.
3.What payment methods are accepted for DF2238RTE6V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2238RTE6V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2238RTE6V?
DF2238RTE6V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2238RTE6V 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 DF2238RTE6V?
For technical support, including DF2238RTE6V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2238RTE6V requirements.
6.How does Aetrix verify that DF2238RTE6V is sourced from the original manufacturer or authorized distributors?
All DF2238RTE6V 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 DF2238RTE6V meets industry standards.
7.What is the process for return or replacement of DF2238RTE6V?
All DF2238RTE6V units undergo pre-shipment inspection (PSI). If there is an issue with DF2238RTE6V, 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 DF2238RTE6V part is unused and in its original packaging.
Return procedure for DF2238RTE6V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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