My Inquiry
My Account
Renesas DF2338VFC25V
- Part No.:
- DF2338VFC25V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-BFQFP
- Datasheet:
-
DF2338VFC25V.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 144QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,039
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DF2338VFC25V from Renesas Electronics is an H8S/2338 16-bit single-chip microcomputer featuring a 25 MHz maximum CPU clock, 256 KB on-chip flash memory (F-ZTAT™), and integrated peripherals including dual 16-bit timer pulse units (TPU), 12-channel 10-bit ADC, dual SCI interfaces, and DMA controller. It operates from a 3.3 V supply and targets embedded control in industrial automation and motor drive systems.
For engineers reviewing the DF2338VFC25V datasheet, DF2338VFC25V pinout, DF2338VFC25V application, or DF2338VFC25V equivalent, key selection criteria include its 144-pin LQFP package, flash reprogrammability (≥100 cycles), 10-year data retention, and support for expanded bus mode with seven chip select outputs.
Technical Context
The DF2338VFC25V implements the H8S/2000 CPU core with 32-bit internal architecture, supporting both minimum and expanded bus modes. Its peripheral set includes a watchdog timer (WDT), D/A converter (2-channel, 8-bit), and serial communication interfaces with asynchronous bit rates up to 38.4 kbps at 25 MHz φ.
It integrates a data transfer controller (DTC) for autonomous memory-to-peripheral transfers and supports external memory expansion via 24-bit address bus (A0–A23) and 16-bit data bus (D0–D15). The device uses on-chip voltage regulation and features dedicated pins for JTAG debugging (TCK/TDO/TDI/TMS) and reset control (RES/NMI).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2000 16-bit with 32-bit internal architecture - enables efficient C-language execution and real-time interrupt handling |
| Max Clock Frequency | 25 MHz - determines instruction throughput and peripheral timing margins in deterministic control loops |
| On-chip Memory | 256 KB flash (F-ZTAT™) + 16 KB RAM - supports field firmware updates without external programming hardware |
| Analog Peripherals | 12-channel 10-bit ADC + 2-channel 8-bit DAC - enables closed-loop analog sensing and actuation in motor control |
| Timer Resources | Dual 16-bit TPU with 8 input capture/compare channels - provides precise PWM generation and encoder signal decoding |
| Serial Interfaces | 2 × SCI (asynchronous only) + 1 × SCK2 - supports host communication and daisy-chain sensor networks |
| Package | 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch) - compatible with standard surface-mount assembly and thermal management in industrial PCBs |
Pinout & Package
DF2338VFC25V is housed in a 144-pin Low-Profile Quad Flat Package (LQFP) with 0.5 mm lead pitch, designed for industrial-grade thermal dissipation and mechanical reliability under extended temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P46/AN6/DA0 | Analog input / DAC output | Shared pin for ADC channel 6 or DAC channel 0 - requires software configuration and external buffering for simultaneous use |
| P64/IRQ0 | Interrupt request input | Edge-triggered external interrupt source - supports fast response to safety-critical events like overcurrent detection |
| PF6/RD | Read strobe output | Active-low control signal for external memory read cycles - synchronizes data sampling during bus transactions |
| TCK/P82 | JTAG clock input | Provides synchronous timing for boundary-scan testing and in-circuit debugging - essential for production test coverage |
| VCC (multiple) | Core power supply | 3.3 V ±5% supply for CPU and digital logic - requires local decoupling capacitors per Renesas layout guidelines |
| AVCC/AVSS | Analog power domain | Separate 3.3 V analog supply and ground - isolates noise-sensitive ADC/DAC circuits from digital switching transients |
Key Features
| Feature | Design Value |
|---|---|
| Flash reprogrammability | Guaranteed ≥100 write/erase cycles with 10-year data retention - enables iterative firmware deployment in deployed equipment |
| Dual SCI with baud rate flexibility | Configurable bit rates up to 38.4 kbps at 25 MHz φ - supports legacy RS-232/RS-485 communication without external UARTs |
| Hardware DTC | Autonomous data movement between memory and peripherals - reduces CPU load during high-frequency ADC sampling or serial streaming |
| Expanded bus interface | 7 programmable chip select outputs (CS0–CS7) with configurable timing - simplifies connection to external Flash, SRAM, or FPGA logic |
| Dedicated JTAG debug port | Full IEEE 1149.1-compliant interface with TCK/TDO/TDI/TMS - enables non-intrusive real-time debugging and flash programming |
Applications
| Industrial PLC I/O Module | Motor Drive Control Unit |
|---|---|
Use Scenario: Compact remote I/O node collecting sensor data and executing logic control in factory automation cabinets. IC Role / Device Role / Timing Role: Central controller managing 12-channel analog inputs, discrete I/O via port expansion, and Modbus RTU over SCI. Use Value: On-chip 256 KB flash stores ladder logic firmware and configuration tables; dual TPU channels generate synchronized PWM for valve drivers. |
Use Scenario: Brushless DC motor controller with position feedback, current sensing, and thermal monitoring. IC Role / Device Role / Timing Role: Real-time motion controller executing FOC algorithms using ADC-sampled phase currents and encoder quadrature inputs. Use Value: Hardware DTC offloads ADC data transfer to RAM, freeing CPU cycles for PID computation; 10-bit ADC resolution supports ±0.1% current measurement accuracy. |
| Building HVAC Controller | Test Equipment Front-End |
Use Scenario: Wall-mounted thermostat and zone controller integrating temperature/humidity sensors, relay outputs, and BACnet MS/TP communication. IC Role / Device Role / Timing Role: System-on-chip managing environmental sensing, user interface, and serial protocol stack with low-power standby capability. Use Value: Integrated 2-channel DAC drives analog setpoint outputs; flash memory retains calibration coefficients across power cycles. |
Use Scenario: Modular signal acquisition module for automated test systems requiring synchronized multi-channel analog capture and trigger I/O. IC Role / Device Role / Timing Role: Data acquisition engine with precise timestamping via TPU input capture and burst-mode ADC sampling. Use Value: 144-pin LQFP provides sufficient I/O for trigger lines, reference clocks, and isolated analog inputs; external bus interface connects to high-speed FPGA co-processor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F2339E | Same H8S/2339 group; 384 KB flash, 24 MHz max clock, identical pinout and peripheral set | Higher memory capacity suits larger protocol stacks (e.g., full TCP/IP); slightly lower max frequency limits high-speed PWM resolution | Select when firmware size exceeds 256 KB or when additional ROM-based bootloader space is required |
| R5F52305ADFP | RX230 32-bit MCU; 128 KB flash, 50 MHz max clock, enhanced ADC (12-bit, 13-channel), no on-chip DAC | Superior processing headroom for floating-point math; lacks integrated DAC but adds CAN interface and higher-resolution ADC | Select for next-generation designs requiring CAN connectivity, higher precision sensing, or migration path to 32-bit architecture |
Compared with HD64F2339E, DF2338VFC25V offers tighter flash capacity and higher clock speed for time-critical control, while R5F52305ADFP provides architectural modernization at the cost of DAC functionality and direct pin compatibility.
Availability
DF2338VFC25V is available at Aetrix Electronics and suitable for industrial automation, motor control, and building management systems requiring stable component supply across multi-year production lifecycles.
Supply support for DF2338VFC25V 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, and power solutions for industrial, automotive, and infrastructure markets.
The H8S/2338 belongs to the H8S/2300 Series - a family of 16-bit MCUs engineered for deterministic real-time control in cost-sensitive industrial equipment where flash reprogrammability and peripheral integration reduce system BOM count.
FAQ
What is the maximum operating frequency of the DF2338VFC25V?
The DF2338VFC25V supports a maximum CPU clock frequency of 25 MHz, achieved using an external crystal (XTAL/EXTAL) or ceramic resonator. This frequency defines the upper limit for instruction execution speed, timer resolution, and serial communication baud rates. The device's electrical characteristics are fully specified at this speed under 3.3 V supply and industrial temperature range (−40°C to +85°C). DF2338VFC25V must not be operated beyond this rating without derating per Renesas' thermal guidelines.
Does the DF2338VFC25V include on-chip debug capability?
Yes, the DF2338VFC25V integrates a full IEEE 1149.1-compliant JTAG interface with dedicated pins (TCK/P82, TDO/P83, TDI/P81, TMS/P80) for non-intrusive debugging, flash programming, and boundary-scan testing. This eliminates the need for external debug probes in most development scenarios and supports production-level test coverage. DF2338VFC25V does not require external debug hardware to perform firmware updates or real-time variable inspection during system validation.
How many times can the on-chip flash memory of DF2338VFC25V be reprogrammed?
The on-chip flash memory (F-ZTAT™) of DF2338VFC25V is guaranteed for a minimum of 100 write/erase cycles, with data retention maintained for at least 10 years when operated within specification. This reprogrammability enables field firmware updates and iterative development without replacing the MCU. DF2338VFC25V flash endurance is validated per Renesas' flash memory characteristics table (tE ≤ 1000 ms/block, NWEC ≥ 100 cycles).
What analog functions are integrated into the DF2338VFC25V?
The DF2338VFC25V integrates a 12-channel 10-bit successive-approximation ADC and two independent 8-bit current-output DACs (DA0 and DA1). ADC channels share pins with general-purpose I/O and support external trigger sources (e.g., TPU compare match). DAC outputs are routed to P46/AN6 and P47/AN7, requiring external op-amps for voltage output. DF2338VFC25V analog subsystem is optimized for closed-loop control in motor drives and sensor conditioning applications.
Is the DF2338VFC25V pin-compatible with other H8S/23xx series MCUs?
DF2338VFC25V is pin-compatible with the HD64F2339E and HD64F2339 within the same 144-pin LQFP package (FP-144G), sharing identical pin arrangement and electrical characteristics for all common signals. However, differences in flash size, clock specifications, and minor peripheral enablement require firmware verification during substitution. DF2338VFC25V is not pin-compatible with H8S/2337 or H8S/2332 due to distinct pin allocations for chip select and timer resources.
DF2338VFC25V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-BFQFP
- Series:
- H8® H8S/2300
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- H8S/2000
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- SCI, SmartCard
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 106
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 12x10b; D/A 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF2338VFC25V FAQ
1.How can I place an order for DF2338VFC25V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2338VFC25V 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 DF2338VFC25V reliable?
The price and inventory of DF2338VFC25V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2338VFC25V is usually 5 days.
3.What payment methods are accepted for DF2338VFC25V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2338VFC25V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2338VFC25V?
DF2338VFC25V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2338VFC25V 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 DF2338VFC25V?
For technical support, including DF2338VFC25V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2338VFC25V requirements.
6.How does Aetrix verify that DF2338VFC25V is sourced from the original manufacturer or authorized distributors?
All DF2338VFC25V 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 DF2338VFC25V meets industry standards.
7.What is the process for return or replacement of DF2338VFC25V?
All DF2338VFC25V units undergo pre-shipment inspection (PSI). If there is an issue with DF2338VFC25V, 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 DF2338VFC25V part is unused and in its original packaging.
Return procedure for DF2338VFC25V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF2338VFC25V Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
