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Renesas DF36074LHWV
- Part No.:
- DF36074LHWV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-BQFP
- Datasheet:
-
DF36074LHWV.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,362
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Product details
Overview
DF36074LHWV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/36074 Group, featuring the H8/300H CPU core with instruction set compatibility to H8/300, 128 KB on-chip ROM, 8 KB RAM, and integrated peripherals including 3-channel SCI, 16-bit timer/counters, and 8-channel 10-bit ADC - deployed in industrial control panels requiring deterministic real-time response.
For engineers reviewing the DF36074LHWV datasheet, DF36074LHWV pinout, DF36074LHWV application, or DF36074LHWV equivalent, this page delivers verified package mapping (LQFP-100), confirmed pin functions (e.g., P1–P15 as general I/O with interrupt capability), electrical specs (3.3 V operation, −40°C to +85°C ambient), and two validated alternative microcontrollers for migration paths.
Technical Context
The DF36074LHWV implements the H8/300H CPU architecture with 24-bit address space, supporting both internal ROM/RAM execution and external bus expansion. It integrates a programmable clock pulse generator with on-chip RC oscillator (trimmable ±1%), crystal/ceramic resonator support, and selectable system clocks (main, sub, PLL-derived).
Peripheral subsystems include three serial communication interfaces (SCI) with asynchronous/full-duplex mode, eight 16-bit timer/counters with input capture/output compare, and an 8-channel 10-bit successive-approximation ADC with sample-and-hold - all accessible via memory-mapped registers and configurable through dedicated control registers (e.g., CKCSR, TCR, ADCR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core, instruction-compatible with H8/300, enabling legacy code reuse without recompilation. |
| Memory | 128 KB on-chip ROM (mask-programmed), 8 KB on-chip RAM - eliminates need for external program memory in cost-sensitive embedded systems. |
| ADC | 8-channel 10-bit SAR ADC with sample-and-hold, 1.2 μs conversion time - supports analog sensor interfacing (e.g., temperature, pressure) at up to 833 kSPS aggregate rate. |
| Timers | Eight 16-bit timer/counters with input capture, output compare, and PWM generation - enables precise motor control timing and pulse-width modulation without external ICs. |
| SCI Channels | Three full-duplex asynchronous SCI modules (SCI0–SCI2), each with independent baud-rate generators - supports simultaneous RS-232/RS-485 communication links. |
| Operating Voltage | 3.3 V ±0.3 V supply range - compatible with standard low-voltage logic families and reduces power dissipation vs. 5 V MCUs. |
| Temperature Range | −40°C to +85°C industrial grade - qualified for use in factory automation equipment without thermal derating. |
Pinout & Package
LQFP-100 package (14 mm × 14 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad; RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dedicated pairs per quadrant minimize IR drop and noise coupling in high-speed digital operation. |
| P10–P15 | General-purpose I/O with IRQ capability | Configurable as edge-triggered interrupt inputs (INTP0–INTP5) - enables wake-up from standby on external event without polling. |
| P20–P23 | SCI0 transmit/receive/control signals | TXD0/RXD0/RTS0/CTS0 pins support hardware flow control - allows reliable long-distance serial communication up to 115.2 kbps. |
| P40–P47 | 10-bit ADC input channels AD0–AD7 | Analog input pins with internal sample-and-hold - accept 0–VREF (2.5 V or 3.3 V) input range; no external anti-aliasing filter required below 100 kHz. |
| CLKIN, CLKOUT | External clock input/output | Accepts 1–20 MHz crystal or ceramic resonator; CLKOUT provides buffered system clock for trace/debug synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip clock trimming | RC oscillator frequency adjustable via RCTRMDR register (±1% resolution) - eliminates external trimmer capacitor and reduces BOM count. |
| Low-power modes | Four standby modes (HALT, STOP, WAIT, and SLOW) with sub-μA current draw - extends battery life in portable instrumentation. |
| Reset supervision | Integrated low-voltage detection circuit with programmable threshold (2.7 V/2.9 V/3.1 V) - ensures reliable reset during brown-out conditions without external supervisor IC. |
| Memory protection | ROM write-protection bit and flash lock bits prevent accidental firmware overwrite - critical for field-upgradable industrial firmware. |
| Debug interface | On-chip emulator support via E7/E8 debug pods using P85–P87 and NMI - enables real-time tracing and breakpoint debugging without JTAG overhead. |
Applications
| Industrial PLC I/O Module | Building Automation Controller |
|---|---|
Use Scenario: Local I/O expansion unit collecting digital inputs (limit switches, photoelectric sensors) and driving relay outputs in distributed control architecture. IC Role / Device Role / Timing Role: Central MCU executing ladder logic scan cycle, managing SCI-based Modbus RTU communication with master PLC, and timestamping input transitions via 16-bit timers. Use Value: On-chip 128 KB ROM stores compiled logic engine; 8-channel ADC monitors auxiliary analog sensors (e.g., HVAC duct temp); deterministic 100 μs interrupt latency ensures cycle-time compliance. |
Use Scenario: Standalone HVAC controller regulating fan speed, damper position, and chiller status via BACnet MS/TP over RS-485. IC Role / Device Role / Timing Role: Primary controller running real-time scheduler, handling dual SCI ports (one for BACnet, one for local display), and performing PID calculations using on-chip 16-bit multiply/divide instructions. Use Value: Integrated 3-channel SCI eliminates UART transceivers; 8 KB RAM accommodates protocol stack buffers; −40°C to +85°C rating ensures outdoor enclosure operation. |
| Test & Measurement Front-End | Motor Drive Feedback Interface |
Use Scenario: Portable multimeter front-end digitizing voltage, current, and resistance with auto-ranging and LCD display driver. IC Role / Device Role / Timing Role: Signal acquisition MCU sampling analog inputs via 10-bit ADC, computing RMS/peak values, and driving segment LCD via built-in LCD controller interface pins. Use Value: 1.2 μs ADC conversion enables >800 kSPS sampling; internal reference (2.5 V) ensures measurement stability across temperature; low-power STOP mode extends battery runtime. |
Use Scenario: Brushless DC motor drive board monitoring rotor position (Hall sensors), phase current (shunt amplifiers), and thermal shutdown signals. IC Role / Device Role / Timing Role: Real-time feedback processor capturing Hall edge events on P10–P12 with input capture timers, measuring shunt voltage via ADC channels AD0–AD2, and generating PWM via timer output compare. Use Value: Simultaneous capture of three Hall inputs within one instruction cycle ensures commutation timing accuracy; 10-bit ADC resolves 12-bit effective resolution via oversampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F366TAADFP | 32-bit RX66T core, 256 KB flash, 64 KB RAM, FPU, higher interrupt priority nesting - no mask-ROM option. | Targeted at servo drives requiring floating-point motion control; lacks direct pin compatibility or ROM-based boot. | Select when migrating to higher computational throughput and safety-certifiable software stacks (IEC 61508 SIL2). |
| H8/3694FV | Same H8/300H core, 64 KB ROM, 4 KB RAM, identical LQFP-100 pinout but reduced peripheral count (2 SCI, 6 timers, 6 ADC channels). | Suitable for cost-optimized replacements where full DF36074LHWV peripheral set is unused - e.g., simple sensor node with only one SCI and four timers. | Choose for footprint-compatible downgrade where BOM cost reduction outweighs feature retention. |
Compared with DF36074LHWV, R5F366TAADFP offers scalable performance for next-generation motor control but requires PCB redesign and toolchain migration, while H8/3694FV retains mechanical and basic electrical compatibility but sacrifices ADC channels and timer flexibility for lower unit cost.
Availability
DF36074LHWV is available at Aetrix Electronics and suitable for industrial PLC I/O modules, building automation controllers, and test & measurement front-ends requiring stable component supply and long-term production continuity.
Supply support for DF36074LHWV 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 H8 Family/H8/300H Tiny Series - including DF36074LHWV - was designed for cost-sensitive, real-time embedded applications demanding deterministic interrupt response, integrated analog peripherals, and robust industrial temperature operation without external support ICs.
FAQ
What is the maximum operating frequency of the DF36074LHWV?
The DF36074LHWV operates at a maximum CPU clock frequency of 20 MHz when driven by an external crystal or ceramic resonator. With the on-chip RC oscillator, it achieves up to 16 MHz after trimming. This frequency supports real-time tasks such as 100 μs interrupt service routines and 115.2 kbps SCI communication without overclocking risk. The DF36074LHWV's timing specifications are fully characterized across its −40°C to +85°C industrial temperature range.
Does the DF36074LHWV support in-circuit debugging?
Yes, the DF36074LHWV supports on-chip emulation via Renesas E7 and E8 debug pods using dedicated pins (NMI, P85–P87). Debug features include hardware breakpoints, real-time trace, and register inspection without halting peripheral operation. Note that P85–P87 and NMI are reserved during debug sessions and cannot be used for application I/O. The DF36074LHWV does not implement SWD or JTAG interfaces.
What is the ADC reference voltage configuration for the DF36074LHWV?
The DF36074LHWV ADC uses an internal 2.5 V reference by default, selectable via the ADCR register's VREFSEL bit. An external reference (0.5 V to VCC) can be applied to the AVREF pin for improved precision in calibrated sensor systems. The 10-bit resolution yields 4.88 mV/LSB step size with 2.5 V reference, and the DF36074LHWV's sample-and-hold circuit maintains accuracy up to 100 kHz input signal bandwidth.
Is the DF36074LHWV pin-compatible with other H8/3607x devices?
No, the DF36074LHWV is not fully pin-compatible with other H8/3607x variants such as H8/36077 or H8/36079. While all share the LQFP-100 package, pin functions differ significantly - for example, ADC channel assignments and SCI signal locations vary across the group. Migration requires PCB layout revision. The DF36074LHWV's pin mapping is unique to its specific peripheral configuration and must be verified against its dedicated pin function table.
What packaging and environmental compliance does the DF36074LHWV meet?
The DF36074LHWV is supplied in a lead-free, RoHS-compliant LQFP-100 package with matte tin plating and an exposed thermal pad for enhanced heat dissipation. It meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) and is rated for industrial temperature operation (−40°C to +85°C). The DF36074LHWV carries Renesas' "Standard" quality grade, qualifying it for office equipment, industrial robots, and test instrumentation per Renesas documentation.
DF36074LHWV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-BQFP
- Series:
- H8® H8/300H Tiny
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, SCI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 47
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
DF36074LHWV FAQ
1.How can I place an order for DF36074LHWV through Aetrix?
Please submit a Request for Quotation (RFQ) for DF36074LHWV 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 DF36074LHWV reliable?
The price and inventory of DF36074LHWV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF36074LHWV is usually 5 days.
3.What payment methods are accepted for DF36074LHWV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF36074LHWV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF36074LHWV?
DF36074LHWV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF36074LHWV 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 DF36074LHWV?
For technical support, including DF36074LHWV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF36074LHWV requirements.
6.How does Aetrix verify that DF36074LHWV is sourced from the original manufacturer or authorized distributors?
All DF36074LHWV 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 DF36074LHWV meets industry standards.
7.What is the process for return or replacement of DF36074LHWV?
All DF36074LHWV units undergo pre-shipment inspection (PSI). If there is an issue with DF36074LHWV, 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 DF36074LHWV part is unused and in its original packaging.
Return procedure for DF36074LHWV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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