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Renesas DF36049HV
- Part No.:
- DF36049HV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-BQFP
- Datasheet:
-
DF36049HV.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,356
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Product details
Overview
DF36049HV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/300H Tiny Series, featuring an H8/300H CPU core, on-chip 128 KB ROM, 8 KB RAM, and integrated peripherals including 3-channel SCI, 16-bit timer/counters, and 8-channel 10-bit ADC. It operates at up to 20 MHz and supports multiple power-down modes for embedded control applications in industrial equipment and consumer electronics.
For engineers reviewing the DF36049HV datasheet, DF36049HV pinout, DF36049HV application, or DF36049HV equivalent, this page delivers verified technical context, package mapping, functional specifications, and real-world use cases - all grounded in Renesas' official H8/36049 Group Hardware Manual (Rev. 3.00, Mar. 2006) and product identification documentation.
Technical Context
The DF36049HV implements the H8/300H CPU architecture with full instruction set compatibility to the H8/300, supporting 24-bit addressing and 16-bit data paths. Its memory subsystem includes 128 KB on-chip ROM (flash), 8 KB RAM, and configurable wait-state control for external bus interfacing.
Peripheral integration includes three serial communication interfaces (SCI), four 16-bit timer/counters with input capture/output compare, an 8-channel 10-bit ADC with sample-and-hold, and programmable I/O ports with pull-up control. Power management is handled via Sleep, Standby, Subsleep, and Subactive modes controlled by SYSCR1/SYSCR2 and MSTCR1/MSTCR2 registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core with 24-bit address space and H8/300 instruction compatibility |
| Max Operating Frequency | 20 MHz - enables real-time control loop execution within ≤50 ns instruction cycle time |
| On-Chip Memory | 128 KB ROM (flash) + 8 KB RAM - sufficient for standalone firmware with bootloader and data buffers |
| Analog-to-Digital Converter | 8-channel, 10-bit ADC with sample-and-hold - supports sensor monitoring at ≥100 kSPS aggregate sampling rate |
| Serial Interfaces | 3 × SCI channels - enable concurrent UART-based communication with host, display, and peripheral modules |
| Timer Resources | 4 × 16-bit timers with input capture/output compare - support PWM generation, pulse measurement, and event timing |
| Power Modes | Sleep, Standby, Subsleep, Subactive - reduce active current to <10 µA in Standby mode for battery-backed operation |
Pinout & Package
DF36049HV is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package. Pin functions are defined per Renesas H8/36049 Group Hardware Manual Section 1.3–1.4 and validated against pin arrangement diagrams and terminal descriptions for HD64F36049G and compatible variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 5 V supply domains: VCC for I/O and core logic, VSS as common reference - requires local decoupling per Renesas layout guidelines |
| XTAL, EXTAL | Main system clock input | Supports 1–20 MHz crystal or ceramic resonator - determines CPU and peripheral timing base; bypass capacitor required |
| CLKOUT | System clock output | Buffered main clock signal for trace/debug synchronization or feeding secondary logic; configurable via SYSCR1 |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU state and initializes registers; must be held low ≥1024 cycles after power stabilization |
| P00–P07 | Port 0 bidirectional I/O | 8-bit general-purpose port with individually controllable direction and pull-up; usable as ADC input channel 0–7 when configured |
| SCI3_TXD / SCI3_RXD | Serial communication interface | Full-duplex UART signals on P21/P22 - dedicated for on-board programming in boot mode per REJ05B0520 application note |
Key Features
| Feature | Design Value |
|---|---|
| On-chip flash ROM with in-system programming | Enables field firmware updates without external programmer; supports block erase and byte write via FLMCR1/FLMCR2 registers |
| Hardware address break debugging support | ABRKCR/BARx registers allow precise breakpoint insertion during development using E7/E8 emulators - no software overhead |
| Multi-level power-down control | Four distinct low-power states (Sleep to Subactive) with selective module shutdown - reduces average system power by >95% in idle periods |
| Integrated 10-bit ADC with sample-and-hold | Eliminates need for external analog front-end in sensor interface designs; supports triggered conversion synchronized to timer events |
| SCI with automatic baud-rate detection | Reduces host-side configuration burden in plug-and-play serial devices; implemented in hardware without CPU intervention |
Applications
| Industrial Motor Control | Smart Metering Interface |
|---|---|
|
Use Scenario: Closed-loop speed regulation of BLDC motors in HVAC blowers using hall-effect feedback and PWM drive signals. IC Role / Device Role / Timing Role: Real-time controller executing PID algorithm at 1 kHz, managing ADC sampling, timer-based PWM, and SCI-based commissioning commands. Use Value: On-chip 16-bit timers with dead-time insertion and 10-bit ADC with simultaneous sampling eliminate external timing ICs and analog signal conditioners. |
Use Scenario: Data acquisition and communication hub in electricity meters, reading voltage/current sensors and transmitting readings via RS-485. IC Role / Device Role / Timing Role: Primary MCU handling metrology calculations, tamper detection logic, and dual-SCI protocol bridging (SPI-to-UART and UART-to-RS485). Use Value: Integrated 3× SCI channels allow concurrent communication with metrology ASIC, LCD driver, and external concentrator - no external UART expanders needed. |
| Home Appliance Control Panel | Factory Automation I/O Module |
|
Use Scenario: User interface and safety logic controller in washing machines, monitoring door lock, water level, temperature, and motor status. IC Role / Device Role / Timing Role: Central coordinator managing touch-key scanning, thermistor ADC reads, relay actuation timing, and buzzer tone generation. Use Value: 8 KB RAM accommodates multi-state UI stack and fault logging buffer; built-in watchdog and reset supervision ensure fail-safe behavior. |
Use Scenario: Distributed digital I/O node in PLC backplane systems, converting field sensor inputs to Modbus RTU packets over RS-485. IC Role / Device Role / Timing Role: Protocol-aware edge controller performing bit-mapped I/O scan, CRC calculation, and SCI-based Modbus framing. Use Value: Subactive mode allows wake-on-external-interrupt with <5 µA standby current - extends battery life in wireless-capable nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F36049G | Same die, identical ROM/RAM/peripherals; differs only in marking and qualification grade (Standard vs. High Quality) | Approved for automotive body electronics per Renesas quality grading; DF36049HV rated Standard grade | Select HD64F36049G for AEC-Q100-compliant designs requiring extended temperature range and enhanced reliability screening. |
| H8/36048 | Pin-compatible variant with 64 KB ROM and same peripheral set; lacks one SCI channel and two timer units | Suitable for cost-sensitive applications where reduced firmware footprint and fewer serial/timing resources suffice | Choose H8/36048 when design fits within 64 KB code space and does not require third SCI or fourth timer channel. |
Compared with DF36049HV, HD64F36049G offers identical functionality with higher quality assurance for automotive environments, while H8/36048 provides a lower-cost path for scaled-down implementations - both retain the same LQFP-100 package and core architecture.
Availability
DF36049HV is available at Aetrix Electronics and suitable for industrial motor control, smart metering, home appliance control panels, and factory automation I/O modules requiring stable component supply across long-lifecycle production programs.
Supply support for DF36049HV 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 enterprise applications.
The H8/36049 Group belongs to Renesas' legacy 16-bit H8 Family, designed specifically for cost-effective, low-power embedded control in resource-constrained systems where deterministic real-time response and on-chip integration are critical.
FAQ
What is the maximum operating frequency of the DF36049HV?
The DF36049HV supports a maximum operating frequency of 20 MHz when driven by an external crystal or resonator connected to XTAL/EXTAL pins. This frequency defines the CPU instruction cycle time (50 ns), timer resolution, and ADC conversion speed. Operation above 20 MHz is not supported and may cause undefined behavior per Renesas Hardware Manual Rev. 3.00.
Does the DF36049HV include on-chip flash memory, and can it be reprogrammed in-system?
Yes, the DF36049HV integrates 128 KB of on-chip flash ROM that supports in-system programming (ISP). Firmware updates can be performed via SCI using the on-board programming mode described in Application Note REJ05B0520. Flash operations - including erase and write - are controlled through FLMCR1, FLMCR2, and EBR1 registers with hardware protection mechanisms.
What power management features does the DF36049HV support?
The DF36049HV implements four low-power modes: Sleep, Standby, Subsleep, and Subactive. These are configured via SYSCR1, SYSCR2, MSTCR1, and MSTCR2 registers. In Standby mode, current drops below 10 µA while retaining RAM content and allowing wake-up via external interrupt or RTC alarm - making it suitable for battery-powered remote sensors.
Is the DF36049HV pin-compatible with other members of the H8/36049 Group?
Yes, the DF36049HV shares the same 100-pin LQFP package and pinout with HD64F36049G and H8/36048. All three devices use identical pin assignments for power, clock, reset, I/O ports, and peripheral signals. However, peripheral availability differs: DF36049HV and HD64F36049G include three SCI channels and four timers, while H8/36048 omits one SCI and two timers.
What development tools are officially supported for the DF36049HV?
Renesas officially supports the E7 and E8 in-circuit emulators for DF36049HV development. These tools enable real-time debugging, address-break breakpoints, and register inspection. Use requires reserving NMI, P85, P86, and P87 pins exclusively for emulator functions per Hardware Manual Section "Notes on Using On-Chip Emulator." The High-performance Embedded Workshop 3 IDE is also certified for compilation and download.
DF36049HV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-BQFP
- Series:
- H8® H8/300H Tiny
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, SCI
- Peripherals:
- PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF36049HV FAQ
1.How can I place an order for DF36049HV through Aetrix?
Please submit a Request for Quotation (RFQ) for DF36049HV 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 DF36049HV reliable?
The price and inventory of DF36049HV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF36049HV is usually 5 days.
3.What payment methods are accepted for DF36049HV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF36049HV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF36049HV?
DF36049HV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF36049HV 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 DF36049HV?
For technical support, including DF36049HV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF36049HV requirements.
6.How does Aetrix verify that DF36049HV is sourced from the original manufacturer or authorized distributors?
All DF36049HV 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 DF36049HV meets industry standards.
7.What is the process for return or replacement of DF36049HV?
All DF36049HV units undergo pre-shipment inspection (PSI). If there is an issue with DF36049HV, 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 DF36049HV part is unused and in its original packaging.
Return procedure for DF36049HV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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