My Inquiry
My Account
Renesas HD64F3694FXV
- Part No.:
- HD64F3694FXV
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
HD64F3694FXV.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,455
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HD64F3694FXV from Renesas Electronics is a 16-bit single-chip microcomputer in the H8/3694 Group, featuring the 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 HD64F3694FXV datasheet, HD64F3694FXV pinout, HD64F3694FXV application, or HD64F3694FXV equivalent, key selection considerations include its 100-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 HD64F3694FXV implements the H8/300H CPU architecture with 24-bit address space, supporting both big-endian and little-endian data access via software configuration. Its memory map includes dedicated areas for on-chip ROM (0x000000–0x00FFFF), RAM (0x0FFC00–0x0FFFFF), and peripheral registers (0x000800–0x000FFF).
It integrates a system clock generator with crystal, ceramic, or external clock input options, plus subclock circuitry for real-time clock functions using a 32.768 kHz source. Power management is handled through SYSCR1/SYSCR2 registers enabling four distinct low-power modes with configurable module-level standby control.
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 |
| ROM Size | 64 KB on-chip flash memory, supports in-system programming via on-board programming mode |
| RAM Size | 4 KB on-chip SRAM, mapped at fixed address range 0x0FFC00–0x0FFFFF for deterministic access timing |
| Max Operating Frequency | 20 MHz at 5 V supply; reduced frequency scaling required below 4.5 V per electrical characteristics |
| I/O Pins | 80 programmable CMOS I/O pins across 10 ports (P0–P9), each with individual direction and pull-up control |
| Power Modes | Four low-power states: Sleep (CPU halted, peripherals active), Standby (CPU + most peripherals halted), Subsleep (subclock active only), Subactive (subclock + selected modules) |
| Package | 100-pin plastic quad flat pack (PQFP), 14 × 20 mm body, 0.65 mm lead pitch, JEDEC MS-026AC compliant |
Pinout & Package
HD64F3694FXV is housed in a 100-pin PQFP (Plastic Quad Flat Package) with 0.65 mm lead pitch, thermally optimized for convection cooling in industrial PCB layouts. Pin numbering follows standard counter-clockwise sequence starting from top-left corner (Pin 1 marked).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VSS | Power supply and ground | Dual VCC pins (Pins 14, 55) and multiple VSS (Pins 13, 54, 78, 100) ensure stable core voltage distribution and noise reduction |
| XTAL, EXTAL | Main system clock input | Accepts 1–20 MHz crystal or ceramic resonator; internal oscillator circuit eliminates need for external capacitors in basic configurations |
| CLKOUT | System clock output | Buffered copy of internal CLK signal, usable for synchronizing external logic or test instrumentation |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and initializes I/O port states to default high-impedance or pull-up configuration |
| NMI | Non-maskable interrupt input | Edge-triggered input reserved for critical fault handling; disabled during on-chip emulator (E7/E8) use per hardware manual |
| P00–P97 | General-purpose I/O ports | 80 total bidirectional pins grouped into 10 ports; each pin supports alternate functions (UART, timer I/O, external interrupt) via mode register settings |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash Memory | 64 KB reprogrammable ROM enables field firmware updates without external programmer hardware |
| Multiple Low-Power Modes | Four distinct power states allow dynamic trade-off between wake-up latency and current consumption (e.g., Subsleep draws <10 µA @ 3.3 V) |
| Integrated Peripherals | Includes two UART channels, three 16-bit timer/counters with capture/compare, and watchdog timer - reducing BOM count for basic control systems |
| Flexible Clock System | Dual clock domains (main + subclock) support RTC functionality and asynchronous peripheral operation without external timing components |
| Emulator Support | Dedicated E7/E8 on-chip debug interface uses fixed pins (NMI, P85–P87) and memory regions (H'7000–H'7FFF), simplifying development setup |
Applications
| Industrial Motor Control | Home Appliance Controller |
|---|---|
Use Scenario: Closed-loop speed regulation of BLDC motors in HVAC blowers and washing machine drum drives. IC Role / Device Role / Timing Role: Primary controller executing PID algorithms, managing PWM generation via timer outputs, and communicating status via UART to main MCU. Use Value: On-chip 20 MHz timing resolution and 16-bit timers enable precise 1 µs PWM edge placement, critical for torque ripple minimization. | Use Scenario: Mainboard control unit in microwave ovens managing keypad scan, display driver, magnetron sequencing, and safety interlocks. IC Role / Device Role / Timing Role: Standalone system-on-chip handling real-time cooking cycle timing, sensor monitoring, and user interface response. Use Value: Integrated subclock domain supports accurate 1-second timekeeping for cooking timers without external RTC IC or crystal. |
| Factory Automation I/O Module | Point-of-Sale Terminal Baseboard |
Use Scenario: DIN-rail mounted digital I/O expansion node collecting 32-channel dry-contact inputs and driving 16 relay outputs in PLC subsystems. IC Role / Device Role / Timing Role: Local intelligence layer performing debounce filtering, state logging, and Modbus RTU protocol framing over RS-485. Use Value: 80 GPIO pins with individual pull-up/pull-down control eliminate external biasing resistors, reducing component count and board area. | Use Scenario: Embedded controller in retail kiosk baseboards managing barcode scanner interface, thermal printer control, and cash drawer actuation. IC Role / Device Role / Timing Role: Dedicated peripheral manager offloading timing-critical USB-to-serial translation and pulse-width modulated buzzer tone generation. Use Value: Dual UART channels allow simultaneous connection to scanner (TTL-level) and printer (RS-232 level via level shifter), avoiding multiplexing delays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD64F3687FV | Same H8/3694 family, 32 KB ROM, 2 KB RAM, identical 100-pin PQFP package and pinout | Suitable for cost-sensitive designs where firmware size ≤32 KB and RAM usage ≤2 KB | Select when application firmware fits within reduced memory footprint and no additional peripherals are needed beyond HD64F3694FXV baseline |
| R5F100PLDFB | RL78/G13 16-bit MCU, 128 KB flash, 12 KB RAM, 64-pin LQFP, different architecture and peripheral set | Targets next-generation designs requiring higher memory density, lower active current (<120 µA/MHz), and built-in LIN transceiver | Choose for new designs prioritizing ultra-low power, larger code capacity, or automotive-compliant communication interfaces |
Compared with HD64F3694FXV, HD64F3687FV offers direct pin- and code-compatible migration path with reduced memory, while R5F100PLDFB provides modern power efficiency and expanded peripheral integration at the cost of architectural rework and layout change.
Availability
HD64F3694FXV is available at Aetrix Electronics and suitable for industrial motor control, home appliance controller, factory automation I/O module, and point-of-sale terminal baseboard applications requiring stable component supply and long-term lifecycle support.
Supply support for HD64F3694FXV 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, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The H8/3694 Group was designed as a cost-optimized, high-integration 16-bit MCU platform for resource-constrained embedded control applications requiring reliability, low power, and mature toolchain support.
FAQ
What is the maximum operating frequency of the HD64F3694FXV?
The HD64F3694FXV supports a maximum operating frequency of 20 MHz when powered at 5.0 V. At 3.3 V supply, the guaranteed maximum frequency is 12 MHz per the device's DC and AC characteristics table. Operation above these limits may result in undefined behavior or timing violations, especially in peripheral modules such as UART baud generation and timer capture/compare accuracy. Always consult the "Electrical Characteristics" section of the HD64F3694FXV Hardware Manual Rev.5.00 for voltage-frequency derating curves.
Does the HD64F3694FXV support in-system programming of its on-chip flash memory?
Yes, the HD64F3694FXV supports in-system programming (ISP) of its 64 KB on-chip flash memory via the on-board programming mode. This requires entry into a special boot mode using specific pin configurations (e.g., MOD0 = high, MOD1 = low) and communication over UART0 using Renesas' standard programming protocol. The HD64F3694FXV Hardware Manual details required timing, command sequences, and voltage requirements - notably, VPP must be applied to Pin 98 during programming cycles. No external programmer hardware is needed for field firmware updates.
What power management features does the HD64F3694FXV provide?
The HD64F3694FXV implements four hardware-supported power-down modes: Sleep (CPU halted, peripherals active), Standby (CPU and most peripherals halted), Subsleep (only subclock domain active), and Subactive (subclock + selected modules). These are controlled via SYSCR1 and SYSCR2 registers. Each mode reduces current draw significantly - e.g., Subsleep draws under 10 µA at 3.3 V - making the HD64F3694FXV suitable for battery-backed applications like utility meters or alarm panels where periodic wake-up is required.
Is the HD64F3694FXV pin-compatible with other devices in the H8/3694 Group?
Yes, the HD64F3694FXV is pin-compatible with other 100-pin PQFP variants in the H8/3694 Group, including HD64F3694, HD64F3694G, and HD64N3694G. All share identical pin assignments, electrical characteristics, and package dimensions. Differences lie solely in memory configuration (ROM/RAM size), operating voltage range, and qualification grade - not pin function or layout. This allows drop-in replacement in existing designs when migrating between variants, provided firmware and power supply constraints are verified.
What debug interface does the HD64F3694FXV support?
The HD64F3694FXV supports the Renesas E7 and E8 on-chip emulators via dedicated debug pins: NMI (Pin 1), P85 (Pin 85), P86 (Pin 86), and P87 (Pin 87). When enabled, these pins are reserved for emulator communication and cannot be used as general-purpose I/O. The emulator accesses internal resources including CPU registers, memory, and peripheral control registers without halting real-time operation in some modes. Debug functionality requires the HD64F3694FXV Hardware Manual's "Notes on reading this manual" section for correct setup and pin restrictions.
HD64F3694FXV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-LQFP
- Series:
- H8® H8/300H Tiny
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- 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:
- -20°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
HD64F3694FXV FAQ
1.How can I place an order for HD64F3694FXV through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3694FXV 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 HD64F3694FXV reliable?
The price and inventory of HD64F3694FXV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3694FXV is usually 5 days.
3.What payment methods are accepted for HD64F3694FXV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3694FXV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3694FXV?
HD64F3694FXV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3694FXV 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 HD64F3694FXV?
For technical support, including HD64F3694FXV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3694FXV requirements.
6.How does Aetrix verify that HD64F3694FXV is sourced from the original manufacturer or authorized distributors?
All HD64F3694FXV 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 HD64F3694FXV meets industry standards.
7.What is the process for return or replacement of HD64F3694FXV?
All HD64F3694FXV units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3694FXV, 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 HD64F3694FXV part is unused and in its original packaging.
Return procedure for HD64F3694FXV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HD64F3694FXV 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…
