My Inquiry
My Account
Renesas HD64F3694FPIV
- Part No.:
- HD64F3694FPIV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
HD64F3694FPIV.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:800
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HD64F3694FPIV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/300H Tiny Series, featuring an H8/300H CPU core with H8/300 instruction set compatibility, 64 KB on-chip ROM, 4 KB RAM, and integrated peripherals including UART, timer/counters, and I/O ports. It operates at up to 20 MHz and targets embedded control in industrial equipment and consumer appliances.
For engineers reviewing the HD64F3694FPIV datasheet, HD64F3694FPIV pinout, HD64F3694FPIV application, or HD64F3694FPIV equivalent, key selection considerations include its 80-pin PQFP package, 3.3 V/5 V dual-voltage operation support, on-chip flash programming capability, and power-down modes (Sleep, Standby, Subsleep) for low-power system design.
Technical Context
The HD64F3694FPIV implements the H8/300H CPU architecture with 24-bit address space, supporting both little-endian and big-endian data access via software configuration. It integrates a system clock generator with crystal, ceramic resonator, or external clock input options, plus a dedicated subclock generator for real-time functions using a 32.768 kHz crystal.
Peripheral modules include three 16-bit timer/counters (one with PWM output), two asynchronous serial interfaces (UART), a watchdog timer, and 64 general-purpose I/O pins configurable as inputs, outputs, or alternate-function signals. Memory mapping supports on-chip ROM, RAM, and peripheral register spaces with defined vector tables for reset and exception handling.
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 |
| Max Operating Frequency | 20 MHz at 5 V supply; enables real-time response in motor control and sensor interface applications |
| On-Chip Memory | 64 KB ROM (flash), 4 KB RAM - sufficient for standalone firmware without external memory |
| I/O Pins | 64 programmable I/O pins across 8 ports (P0–P7), supporting TTL/CMOS levels and interrupt-capable inputs |
| Power Modes | Four low-power modes (Sleep, Standby, Subsleep, Subactive) with wake-up via external interrupt or timer event |
| Supply Voltage | 4.5 V to 5.5 V (standard mode); supports robust operation in noisy industrial environments |
| Package | 80-pin plastic quad flat pack (PQFP), 14 × 20 mm body, 0.65 mm pitch - compatible with standard SMT assembly |
Pinout & Package
HD64F3694FPIV is housed in an 80-pin PQFP (Plastic Quad Flat Package) with 0.65 mm lead pitch and 14 mm × 20 mm body size. The package supports reflow soldering and meets JEDEC MS-026 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC/VSS pairs per side ensure stable core voltage distribution and noise suppression |
| XTAL, EXTAL | Main clock input/output | Connects to 1–20 MHz crystal or ceramic resonator; internal oscillator circuit eliminates need for external components |
| CLKOUT | System clock output | Provides buffered main clock signal for synchronization of external logic or test equipment |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates hardware reset sequence and clears registers |
| NMI | Non-maskable interrupt input | Edge-triggered high-priority interrupt used for critical fault detection or emulator debugging |
| P00–P77 | General-purpose I/O ports | 64 bidirectional CMOS I/O pins grouped into eight 8-bit ports with individual direction and data registers |
| TXD0, RXD0 | UART channel 0 serial I/O | Full-duplex asynchronous communication interface compliant with RS-232/RS-485 level-shifter requirements |
| TO0–TO2 | Timer output channels | Three independent 16-bit timer outputs supporting capture, compare, PWM, and interval timing functions |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash ROM | 64 KB reprogrammable flash memory enables field firmware updates without external programmers |
| Hardware UART | Dual UART modules with baud-rate generators support host communication and diagnostics via serial interface |
| Flexible Clock System | Configurable main clock (1–20 MHz) and subclock (32.768 kHz) generators allow precise timing and RTC integration |
| Low-Power Operation | Subsleep mode draws <10 µA at 3 V, extending battery life in portable or energy-sensitive applications |
| Interrupt Architecture | 16-vector interrupt controller with priority encoding and edge-selectable inputs supports responsive real-time event handling |
Applications
| Industrial Motor Control | Home Appliance Interface |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and washing machine drum drives. IC Role / Device Role / Timing Role: Primary MCU executing PID algorithms, generating PWM waveforms, and monitoring hall-effect sensors. Use Value: Integrated 16-bit timers with PWM output and 64 I/O pins enable direct motor driver interface without external glue logic. | Use Scenario: User interface and sensor management in microwave ovens and rice cookers with keypad, LCD, and temperature sensing. IC Role / Device Role / Timing Role: Central controller managing button scan, display refresh, thermal cutoff, and cooking cycle timing. Use Value: On-chip 64 KB flash stores full application firmware; 4 KB RAM accommodates runtime variables and stack for multitask scheduling. |
| Factory Automation I/O Module | Energy Metering Front-End |
Use Scenario: DIN-rail mounted digital I/O module converting PLC signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol processor and physical layer interface controller handling UART framing, CRC, and isolation-level signal conditioning. Use Value: Dual UART with independent baud-rate generators supports simultaneous host and fieldbus communication without CPU overhead. | Use Scenario: Pulse counting and tariff switching in residential electricity meters using optical or magnetic sensor inputs. IC Role / Device Role / Timing Role: Event counter and time-of-use scheduler synchronized to 32.768 kHz subclock for accurate billing intervals. Use Value: Subclock generator and dedicated timer capture units provide ±1 ppm timing accuracy for revenue-grade metering compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3687FPIV | Same H8/300H core but with 32 KB ROM, 2 KB RAM, and reduced I/O count (48 pins) | Suitable for cost-sensitive designs where memory and peripheral count are scaled down | Select when firmware footprint is under 32 KB and fewer GPIOs are required |
| HD64F3692FPIV | Identical package and pinout, but with 128 KB ROM and same 4 KB RAM; higher memory density | Used in applications requiring larger firmware images (e.g., protocol stacks or GUI frameworks) | Drop-in replacement if board layout supports increased ROM capacity and no timing changes are needed |
Compared with HD64F3694FPIV, HD64F3687FPIV offers lower memory and I/O resources for simpler control tasks, while HD64F3692FPIV provides double the ROM in the same footprint for feature-rich firmware - both retain identical peripheral sets and power management features.
Availability
HD64F3694FPIV is available at Aetrix Electronics and suitable for industrial motor control, home appliance interface, and factory automation I/O modules requiring stable component supply and long-term production continuity.
Supply support for HD64F3694FPIV 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 automotive, industrial, and IoT markets.
The HD64F3694FPIV belongs to the H8/300H Tiny Series - a family of cost-optimized 16-bit MCUs designed for resource-constrained embedded systems requiring reliability, low power, and mature toolchain support.
FAQ
What is the maximum operating frequency of the HD64F3694FPIV?
The HD64F3694FPIV supports a maximum operating frequency of 20 MHz when powered at 5 V. This frequency is achieved using the internal high-speed clock generator with an external crystal or ceramic resonator connected to XTAL/EXTAL pins. At this speed, the HD64F3694FPIV delivers deterministic real-time performance for motor control loops and communication protocols. Operation above 20 MHz is not supported and may cause undefined behavior.
Does the HD64F3694FPIV support in-system programming?
Yes, the HD64F3694FPIV supports in-system programming via its on-chip flash ROM. Using the on-board programming (OBP) mode, firmware updates can be performed through the UART interface without removing the device from the PCB. The HD64F3694FPIV requires no external programming voltage and uses standard 5 V logic levels, making it suitable for field upgrades in deployed equipment.
What power-saving modes does the HD64F3694FPIV offer?
The HD64F3694FPIV provides four distinct low-power modes: Sleep, Standby, Subsleep, and Subactive. In Subsleep mode, current consumption drops below 10 µA at 3 V, with wake-up possible via external interrupt or timer event. These modes are controlled via SYSCR1 and SYSCR2 registers and preserve RAM contents during sleep states - essential for battery-powered applications where rapid resume is required.
Is the HD64F3694FPIV pin-compatible with other H8/3694 series devices?
Yes, the HD64F3694FPIV shares the same 80-pin PQFP package and pin assignment with other members of the H8/3694 group, including HD64F3692FPIV and HD64F3693FPIV. Pin compatibility extends to power, clock, reset, and all I/O port mappings. However, differences in on-chip memory size and peripheral enablement require corresponding firmware and configuration adjustments despite identical physical layout.
What development tools are supported for the HD64F3694FPIV?
The HD64F3694FPIV is supported by Renesas' legacy H8 development ecosystem, including the High-Performance Embedded Workshop IDE, H8/300H C/C++ compiler (REJ10B0058), and E8 in-circuit emulator. Debugging is enabled via dedicated NMI and trace pins, and the device supports on-chip emulation without requiring external JTAG adapters. Full documentation, including the H8/3694 Group Hardware Manual (Rev.5.00), remains publicly accessible on the Renesas website.
HD64F3694FPIV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- H8® H8/300H Tiny
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- H8/300H
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, SCI
- Peripherals:
- PWM, WDT
- Number of I/O:
- 29
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD64F3694FPIV FAQ
1.How can I place an order for HD64F3694FPIV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3694FPIV 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 HD64F3694FPIV reliable?
The price and inventory of HD64F3694FPIV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3694FPIV is usually 5 days.
3.What payment methods are accepted for HD64F3694FPIV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3694FPIV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3694FPIV?
HD64F3694FPIV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3694FPIV 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 HD64F3694FPIV?
For technical support, including HD64F3694FPIV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3694FPIV requirements.
6.How does Aetrix verify that HD64F3694FPIV is sourced from the original manufacturer or authorized distributors?
All HD64F3694FPIV 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 HD64F3694FPIV meets industry standards.
7.What is the process for return or replacement of HD64F3694FPIV?
All HD64F3694FPIV units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3694FPIV, 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 HD64F3694FPIV part is unused and in its original packaging.
Return procedure for HD64F3694FPIV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HD64F3694FPIV 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…
