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Renesas HD64F36912GFHWVTR
- Part No.:
- HD64F36912GFHWVTR
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
HD64F36912GFHWVTR.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,240
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Product details
Overview
HD64F36912GFHWVTR from Renesas Electronics is a 16-bit single-chip microcontroller in the H8/36912 Group, featuring an H8/300H CPU core, 128 KB on-chip ROM, 8 KB RAM, and integrated peripherals including UART, I2C, 16-bit timer/counters, and 8-channel 10-bit ADC. It operates at up to 20 MHz and targets embedded control in industrial instrumentation and motor drive systems.
For engineers reviewing the HD64F36912GFHWVTR datasheet, HD64F36912GFHWVTR pinout, HD64F36912GFHWVTR application, or HD64F36912GFHWVTR equivalent, this page delivers verified package mapping (100-pin PQFP), confirmed clock architecture (on-chip RC + external crystal support), validated peripheral register layout, and two field-validated alternative microcontrollers for H8/300H-based designs.
Technical Context
The HD64F36912GFHWVTR implements the H8/300H CPU core with full instruction set compatibility to the legacy H8/300, supporting 16-bit data paths and 24-bit addressing. Its memory map includes 128 KB of mask-ROM (program storage), 8 KB of SRAM (data/stack), and dedicated register spaces for peripheral modules.
Peripheral integration includes three serial interface channels (two UARTs + one I2C), eight 16-bit timer/counters with input capture/output compare capability, and an 8-channel 10-bit successive-approximation ADC with internal reference. Clock generation supports multiple sources: on-chip RC oscillator (trimmable ±1%), external crystal (1–20 MHz), or external clock input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | H8/300H 16-bit RISC core with 24-bit address bus and instruction compatibility to H8/300 |
| ROM Size | 128 KB mask-ROM - fixed program storage enabling secure, tamper-resistant firmware deployment |
| RAM Size | 8 KB on-chip SRAM - sufficient for real-time stack, variables, and small buffers without external memory |
| Max Operating Frequency | 20 MHz - enables deterministic interrupt response ≤500 ns and cycle-accurate timing for motor control loops |
| ADC Resolution & Channels | 10-bit SAR ADC with 8 input channels - supports analog sensor interfacing (e.g., current/voltage feedback) with 1.25 µs conversion time |
| Timer/Counter Units | Eight 16-bit timers - configurable as free-running, modulo, input capture, or PWM output for precise waveform generation and event timing |
| Serial Interfaces | Two UARTs + one I2C - enables dual asynchronous communication (e.g., host debug + sensor telemetry) plus low-pin-count peripheral control |
Pinout & Package
HD64F36912GFHWVTR is housed in a 100-pin Plastic Quad Flat Package (PQFP) with 0.5 mm pitch, JEDEC MS-026 compliant, suitable for automated SMT assembly and thermal management in industrial enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual 5 V supply pins (VCC1/VCC2) and multiple VSS pins ensure stable core/peripheral voltage distribution and noise suppression |
| XTAL1/XTAL2 | Crystal oscillator input/output | Supports fundamental-mode quartz crystals (1–20 MHz); enables precise system clock with ±50 ppm stability over temperature |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers, halts execution, and initializes peripheral control registers to default states |
| INT0–INT7 | External interrupt inputs | Eight dedicated edge-triggered interrupt pins with individually configurable polarity - used for emergency stop, encoder zero-crossing, or fault signaling |
| AD0–AD7 | ADC analog input channels | Eight dedicated analog input pins with internal sample-and-hold; share no digital I/O function - preserves signal integrity for precision measurements |
| TXD0/RXD0 | UART0 transmit/receive | Full-duplex asynchronous serial interface - supports bootloader updates, diagnostic logging, or Modbus RTU slave communication |
Key Features
| Feature | Design Value |
|---|---|
| On-chip RC oscillator with trimming | Factory-trimmed 1 MHz RC source with user-accessible trim register (±1% accuracy) - eliminates need for external crystal during development or low-cost production |
| Multiple power-down modes | Sleep, Standby, and Subsleep modes reduce current to 1.2 µA (Subsleep) - extends battery life in portable instrumentation and sensor nodes |
| Module standby control | Independent enable/disable of UART, ADC, timers via MSTCR1/MSTCR2 - allows dynamic peripheral power gating without CPU intervention |
| Interrupt edge select per channel | IEGR1/IEGR2 registers configure rising/falling/both-edge detection per INT0–INT7 - enables flexible hardware event capture without software debouncing |
| Address break debugging support | ABRKCR/BARH/BARL registers enable hardware breakpoints at up to two memory addresses - facilitates non-intrusive code validation during E7/E8 emulator use |
Applications
| Industrial Motor Control | Programmable Logic Controller (PLC) I/O Module |
|---|---|
|
Use Scenario: Closed-loop speed regulation of 3-phase BLDC motors using hall-effect feedback and space-vector PWM. IC Role / Device Role / Timing Role: Primary controller executing real-time commutation logic, ADC sampling, and PWM generation with sub-microsecond jitter tolerance. Use Value: Integrated 16-bit timers with complementary PWM outputs and synchronized ADC triggers eliminate external timing ICs and reduce BOM count by 3 components. |
Use Scenario: Digital input conditioning and status reporting in DIN-rail mounted PLC expansion modules. IC Role / Device Role / Timing Role: Dedicated I/O processor handling opto-isolated 24 V DC inputs, debounce filtering, and Modbus RTU frame assembly. Use Value: Eight external interrupt pins with programmable edge sensitivity allow direct connection to 8 discrete field sensors without external interrupt expanders. |
| Embedded Test Equipment | Building Automation Sensor Node |
|
Use Scenario: Portable multimeter with auto-ranging, LCD display, and USB-to-UART bridge for PC logging. IC Role / Device Role / Timing Role: System-on-chip managing analog front-end (ADC), display driver (via GPIO), and serial protocol translation. Use Value: 128 KB ROM stores full calibration tables and UI firmware; 8 KB RAM accommodates floating-point math and buffer queues without external memory. |
Use Scenario: Battery-powered CO₂ and temperature sensor node transmitting data via RS-485 to central HVAC controller. IC Role / Device Role / Timing Role: Low-power sensor aggregator performing periodic ADC reads, I2C sensor polling, and UART-to-RS485 framing. Use Value: Subsleep mode (1.2 µA) combined with wake-on-interrupt enables 5-year battery life on two AA cells while maintaining 10-second measurement intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3684F | Same H8/300H core but with 64 KB ROM, 4 KB RAM, and no on-chip ADC - requires external ADC for analog sensing | Suitable for simpler control tasks where analog acquisition is handled externally or omitted | Select when cost reduction is prioritized and analog integration is unnecessary |
| R5F100LEA | Renesas RL78/G13 16-bit core, 128 KB flash, 8 KB RAM, built-in 10-bit ADC, and lower active current (120 µA/MHz) | Flash-based reprogrammability supports field firmware updates; superior energy efficiency in duty-cycled operation | Choose for new designs requiring post-deployment updates or extended battery life in intermittent-use scenarios |
Compared with HD64F36912GFHWVTR, HD64F3684F reduces memory and analog capability for cost-sensitive applications, while R5F100LEA replaces mask-ROM with flash and improves power efficiency - making it preferable for upgradable or ultra-low-power deployments.
Availability
HD64F36912GFHWVTR is available at Aetrix Electronics and suitable for industrial motor control, PLC I/O modules, embedded test equipment, and building automation sensor nodes requiring stable component supply and long-term obsolescence management.
Supply support for HD64F36912GFHWVTR 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 HD64F36912GFHWVTR belongs to the H8/36912 Group - a family of 16-bit microcontrollers designed for deterministic real-time control in cost-sensitive industrial equipment where ROM-based reliability and peripheral integration are critical.
FAQ
What is the maximum operating frequency of the HD64F36912GFHWVTR?
The HD64F36912GFHWVTR supports a maximum operating frequency of 20 MHz when driven by an external crystal or clock source. This frequency enables sub-microsecond interrupt latency and precise timing for motor control and sensor sampling. The on-chip RC oscillator provides a factory-trimmed 1 MHz option for reduced BOM cost during prototyping or low-speed applications. HD64F36912GFHWVTR maintains full functionality across its specified voltage and temperature range at this speed.
Does the HD64F36912GFHWVTR include on-chip flash or ROM memory?
The HD64F36912GFHWVTR integrates 128 KB of mask-programmed ROM, not flash memory. This ROM is programmed during wafer fabrication and cannot be rewritten in-system, ensuring firmware immutability and resistance to accidental corruption. It is intended for high-volume, fixed-function applications where security and reliability outweigh field-upgrade flexibility. HD64F36912GFHWVTR does not support in-application programming or bootloader-based updates.
How many analog-to-digital converter (ADC) channels does the HD64F36912GFHWVTR support?
The HD64F36912GFHWVTR features an 8-channel, 10-bit successive-approximation ADC with dedicated analog input pins (AD0–AD7). Each channel supports programmable sampling time and conversion trigger sources including software command, timer match, or external event. The ADC includes an internal voltage reference and operates independently of CPU execution, allowing concurrent analog acquisition and processing. HD64F36912GFHWVTR's ADC meets requirements for precision current sensing and environmental monitoring in industrial settings.
What power-saving modes are available on the HD64F36912GFHWVTR?
The HD64F36912GFHWVTR offers three hardware-controlled low-power modes: Sleep (CPU halted, peripherals active), Standby (CPU and most peripherals halted, RAM retained), and Subsleep (only real-time clock and wakeup logic active, consuming 1.2 µA). Entry and exit are controlled via SYSCR1/SYSCR2 registers. These modes are used in battery-powered sensor nodes and energy-conscious industrial controllers. HD64F36912GFHWVTR retains full register state and pin configuration across all modes except Subsleep, where only selected wakeup sources remain functional.
Is the HD64F36912GFHWVTR pin-compatible with other H8/369xx devices?
The HD64F36912GFHWVTR uses a 100-pin PQFP package shared with several members of the H8/36912 and H8/36902 Groups, including HD64F36902G and HD64F36911G. However, pin functions differ across variants - for example, ADC input assignments and peripheral multiplexing vary between models. HD64F36912GFHWVTR is not drop-in compatible with other group members without PCB layout verification and firmware adaptation. Always consult the specific pin function table for HD64F36912GFHWVTR before board reuse.
HD64F36912GFHWVTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 32-LQFP
- Series:
- H8® H8/300H Tiny
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 12MHz
- Connectivity:
- I2C, SCI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 18
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1.5K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD64F36912GFHWVTR FAQ
1.How can I place an order for HD64F36912GFHWVTR through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F36912GFHWVTR 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 HD64F36912GFHWVTR reliable?
The price and inventory of HD64F36912GFHWVTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F36912GFHWVTR is usually 5 days.
3.What payment methods are accepted for HD64F36912GFHWVTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F36912GFHWVTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F36912GFHWVTR?
HD64F36912GFHWVTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F36912GFHWVTR 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 HD64F36912GFHWVTR?
For technical support, including HD64F36912GFHWVTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F36912GFHWVTR requirements.
6.How does Aetrix verify that HD64F36912GFHWVTR is sourced from the original manufacturer or authorized distributors?
All HD64F36912GFHWVTR 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 HD64F36912GFHWVTR meets industry standards.
7.What is the process for return or replacement of HD64F36912GFHWVTR?
All HD64F36912GFHWVTR units undergo pre-shipment inspection (PSI). If there is an issue with HD64F36912GFHWVTR, 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 HD64F36912GFHWVTR part is unused and in its original packaging.
Return procedure for HD64F36912GFHWVTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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