My Inquiry
My Account
Renesas DF2643FC25V
- Part No.:
- DF2643FC25V
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-BFQFP
- Datasheet:
-
DF2643FC25V.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 144QFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,354
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DF2643FC25V from Renesas Electronics is a 16-bit single-chip microcontroller in the H8S/2643 Group, featuring a 32-bit H8S/2600 CPU core, 256 KB on-chip flash memory (F-ZTAT™), and integrated peripherals including 16-bit TPU, 14-bit PWM timer, 10-channel 10-bit A/D converter, SCI/IrDA interfaces, and DMA controller. It operates at up to 33 MHz and supports subactive, subsleep, and watch low-power modes for industrial control applications.
For engineers reviewing the DF2643FC25V datasheet, DF2643FC25V pinout, DF2643FC25V application, or DF2643FC25V equivalent, key selection criteria include its 144-pin LQFP package, 3.0–3.6 V core supply, 32.768 kHz real-time clock support, and flash programming via on-chip F-ZTAT™ technology - all critical for embedded motor control and programmable logic systems.
Technical Context
The DF2643FC25V implements the H8S/2600 CPU core with sixteen 16-bit general-purpose registers, a 16 Mbyte linear address space, and one-state instruction execution for C-compiled code efficiency. Its memory subsystem includes 256 KB of single-power-supply flash memory with program/erase verification logic and optional masked ROM variants.
Peripheral integration includes dual serial communication interfaces (SCI) supporting IrDA physical layer, a 16-bit timer pulse unit (TPU) with input capture/output compare, an 8-bit timer, watchdog timer (WDT), and on-chip I²C-compatible interface (IIC) as an option. The device supports cascaded 32-bit counter operation via TPU channel pairing and DTC-assisted data transfers independent of CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8S/2600 32-bit architecture with 16-bit register file; enables efficient C-language execution and deterministic real-time response. |
| Flash Memory | 256 KB F-ZTAT™ flash; supports in-system programming, erase/program verification, and rapid prototyping-to-volume transition. |
| Max Clock Frequency | 33 MHz; defines maximum instruction throughput and peripheral timing margins for high-speed control loops. |
| A/D Converter | 10-bit resolution, 10 channels; provides analog sensor acquisition capability with internal reference and sample-and-hold. |
| Low-Power Modes | Subactive (120 µA), subsleep (70 µA), watch (20 µA) at 3.0 V with 32.768 kHz crystal; enables battery-backed RTC and ultra-low standby power. |
| Package | 144-pin LQFP (20 × 20 mm, 0.5 mm pitch); compatible with standard SMT assembly and thermal management for industrial PCBs. |
| I/O Pins | 112 configurable CMOS I/O pins; supports multiplexed functions including SCI, TPU, PWM, and external bus interface. |
Pinout & Package
DF2643FC25V is housed in a 144-pin Low-Profile Quad Flat Package (LQFP) with 0.5 mm lead pitch and 20 mm × 20 mm body size. Thermal pad exposed on underside for enhanced heat dissipation in continuous industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / PVCC | Core & I/O power supply | Dual supply: VCC = 3.0–3.6 V for CPU/peripherals; PVCC = 3.0–5.5 V for I/O drivers - enables mixed-voltage interfacing. |
| AVCC / AVSS | Analog power/ground | Separate 3.6–5.5 V analog domain for A/D and D/A converters; minimizes digital noise coupling into precision analog paths. |
| PLLVCC / PLLVSS | PLL power/ground | Dedicated low-noise supply for phase-locked loop; ensures stable clock generation and jitter control for timing-critical peripherals. |
| P30/P31 | IrTxD / IrRxD | Integrated IrDA physical layer transceivers; enable contactless communication without external encoder/decoder ICs. |
| P80/P81 | DREQ0 / DREQ1 | DMA request inputs; trigger hardware data transfers for time-sensitive operations like ADC buffering or serial streaming. |
| WDTOVF | Watchdog timeout flag | Open-drain output indicating WDT overflow; used for system-level fault detection and safe state entry in safety-critical firmware. |
Key Features
| Feature | Design Value |
|---|---|
| F-ZTAT™ Flash Technology | Enables field-upgradable firmware with 100K-cycle endurance and 20-year data retention - eliminates need for external EEPROM or boot ROM. |
| Cascaded 32-bit Counter Mode | TPU channels 1+2 or 4+5 combine to form 32-bit counters for high-resolution position/speed measurement in motor control. |
| DTC-Assisted Data Transfer | Offloads CPU for memory-to-peripheral transfers (e.g., ADC → RAM, RAM → SCI), reducing interrupt latency and improving determinism. |
| Multiple Low-Power Operating Modes | Subsleep mode draws only 70 µA at 3.0 V with 32.768 kHz RTC active - extends battery life in portable industrial monitors. |
| Multiplexed SCI with IrDA Support | Single SCI module supports UART, LIN, and IrDA protocols via software configuration - reduces BOM count in multi-interface designs. |
Applications
| Industrial PLC I/O Module | Brushless DC Motor Controller |
|---|---|
Use Scenario: Standalone distributed I/O node with analog input conditioning, digital output switching, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Central controller executing cyclic scan logic, managing 10-channel A/D sampling at 10 kSPS, and driving isolated outputs via PWM timers. Use Value: Integrated 256 KB flash stores full ladder logic firmware; TPU input capture measures encoder pulses with ±1-count accuracy at 33 MHz clock. | Use Scenario: Closed-loop commutation control for HVAC blower motors using hall-effect sensors and three-phase gate drivers. IC Role / Device Role / Timing Role: Real-time executor of six-step commutation algorithm with synchronized 14-bit PWM outputs and current-sense ADC sampling. Use Value: Cascaded TPU counters track rotor position with 32-bit resolution; DTC moves ADC samples to RAM without CPU load, enabling <5 µs control loop jitter. |
| Programmable Logic Relay | Smart Power Meter Communication Hub |
Use Scenario: DIN-rail mounted relay with configurable digital I/O, time-of-use scheduling, and local HMI via SPI LCD driver. IC Role / Device Role / Timing Role: Main processor handling logic execution, RTC-based event scheduling, and SPI peripheral management for display and EEPROM. Use Value: Watch mode consumes only 20 µA while maintaining accurate timekeeping with 32.768 kHz crystal - enables >5-year battery backup. | Use Scenario: AMI endpoint aggregating meter readings and forwarding via GPRS or RF mesh using embedded protocol stack. IC Role / Device Role / Timing Role: Host controller managing dual SCI interfaces (one for meter UART, one for modem AT command channel) and secure firmware updates. Use Value: F-ZTAT™ flash allows encrypted OTA updates with built-in program/verify flow - meets IEC 62056-21 security requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F21264SNFP | Same H8S/2600 core but 128 KB flash, no F-ZTAT™; uses mask ROM or OTP instead of reprogrammable flash. | Limited to fixed-function firmware; unsuitable for field-upgradable devices requiring post-deployment feature updates. | Select when cost sensitivity outweighs firmware flexibility and production volume justifies mask ROM NRE. |
| H8S/2633F-ZTAT | Pin-compatible 144-pin variant with 192 KB flash, identical peripheral set and low-power modes. | Direct drop-in replacement where 256 KB flash capacity is not required; shares same toolchain and HAL libraries. | Choose for legacy design reuse or when 192 KB suffices - reduces flash test time and programming overhead. |
Compared with R5F21264SNFP, DF2643FC25V delivers field-programmable firmware agility; versus H8S/2633F-ZTAT, it adds 64 KB flash for larger control algorithms or dual-bank OTA, without changing PCB layout or driver software.
Availability
DF2643FC25V is available at Aetrix Electronics and suitable for industrial PLC I/O modules, brushless DC motor controllers, programmable logic relays, and smart power meter communication hubs requiring stable component supply across extended product lifecycles.
Supply support for DF2643FC25V 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The H8S/2600 Series was designed for cost-sensitive, high-reliability embedded control applications demanding real-time performance, integrated peripherals, and long-term supply stability - particularly in factory automation and energy metering.
FAQ
What is the maximum operating frequency of the DF2643FC25V?
The DF2643FC25V operates at a maximum CPU clock frequency of 33 MHz. This speed is achieved using the on-chip PLL with an external crystal or resonator, and is validated across the full industrial temperature range (–40°C to +85°C). The DF2643FC25V maintains timing compliance for all internal peripherals-including TPU, PWM, and SCI-at this frequency under specified voltage and load conditions.
Does the DF2643FC25V support in-system programming of its flash memory?
Yes, the DF2643FC25V supports full in-system programming via its F-ZTAT™ flash technology. The DF2643FC25V includes on-chip logic for program/erase/verify operations without external high-voltage supplies, enabling firmware updates through SCI or custom bootloader implementations. Programming is performed in 128-byte units with built-in error detection and reprogramming routines.
What low-power modes are available on the DF2643FC25V and their typical current consumption?
The DF2643FC25V offers subactive (120 µA), subsleep (70 µA), and watch (20 µA) modes at 3.0 V with a 32.768 kHz crystal. These modes retain RAM content and selected peripheral states while disabling the CPU and main clock. The DF2643FC25V achieves these figures under specified test conditions per Renesas' Hardware User's Manual Rev. 4.00, Table 25.2.
How many A/D converter channels does the DF2643FC25V have, and what is their resolution?
The DF2643FC25V integrates a 10-bit successive-approximation A/D converter with 10 input channels. Each channel supports software or timer-triggered conversion, with internal reference options and sample-and-hold functionality. The DF2643FC25V delivers full 10-bit linearity and monotonicity across its specified operating range, as confirmed in the Electrical Characteristics section of the official datasheet.
Is the DF2643FC25V pin-compatible with other members of the H8S/2643 Group?
Yes, the DF2643FC25V is pin-compatible with other 144-pin LQFP variants in the H8S/2643 Group, including the H8S/2633F-ZTAT and H8S/2623F-ZTAT. Pin assignments for power, ground, reset, clocks, and primary peripherals (TPU, SCI, A/D) are identical across these variants. Differences exist only in flash size and optional features - verified in the Pin Arrangement and Pin Functions sections of the R01UH0167EJ0400 manual.
DF2643FC25V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-BFQFP
- Series:
- H8® H8S/2600
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8S/2600
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, SCI, SmartCard
- Peripherals:
- DMA, POR, PWM, WDT
- Number of I/O:
- 96
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 16x10b; D/A 4x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF2643FC25V FAQ
1.How can I place an order for DF2643FC25V through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2643FC25V 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 DF2643FC25V reliable?
The price and inventory of DF2643FC25V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2643FC25V is usually 5 days.
3.What payment methods are accepted for DF2643FC25V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2643FC25V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2643FC25V?
DF2643FC25V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2643FC25V 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 DF2643FC25V?
For technical support, including DF2643FC25V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2643FC25V requirements.
6.How does Aetrix verify that DF2643FC25V is sourced from the original manufacturer or authorized distributors?
All DF2643FC25V 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 DF2643FC25V meets industry standards.
7.What is the process for return or replacement of DF2643FC25V?
All DF2643FC25V units undergo pre-shipment inspection (PSI). If there is an issue with DF2643FC25V, 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 DF2643FC25V part is unused and in its original packaging.
Return procedure for DF2643FC25V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF2643FC25V 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…
