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Renesas HD64F3694FYJE
- Part No.:
- HD64F3694FYJE
- Manufacturer:
- Renesas
- Category:
- Microprocessors
- Package:
- -
- Datasheet:
-
HD64F3694FYJE.pdf
- Description:
- 16-BIT, FLASH, H8
- Quantity:
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Inventory:170
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Product details
Overview
HD64F3694FYJE from Renesas is a 16-bit single-chip microcomputer in the H8/3694 Group, featuring the H8/300H CPU core, 128 KB on-chip Flash ROM, 8 KB RAM, and integrated peripherals including Timer A, Timer V, UART, and I/O ports. It operates at up to 20 MHz, supports multiple power-down modes (Sleep, Standby, Subsleep), and targets embedded control in industrial and consumer applications requiring deterministic real-time response.
For engineers reviewing the HD64F3694FYJE datasheet, HD64F3694FYJE pinout, HD64F3694FYJE application, or HD64F3694FYJE equivalent, key selection criteria include Flash endurance (10,000 write/erase cycles), subclock support for RTC (32.768 kHz crystal), interrupt latency under 1.5 µs, and compatibility with Renesas E10T on-chip emulator for debug.
Technical Context
The HD64F3694FYJE implements the H8/300H CPU architecture with full instruction set compatibility to the H8/300, supporting 16-bit data paths and 24-bit addressing (16 MB space). Its memory map includes dedicated areas for on-chip Flash (0x000000–0x01FFFF), RAM (0xFFE000–0xFFFFFF), and peripheral registers (0xF00000–0xF00FFF).
Peripheral integration includes two independent timers (Timer A for interval/clock output, Timer V for PWM with arbitrary duty cycle and delay), full-duplex UART with framing/error detection, and eight I/O ports (P1, P2, P5, P7, P8, PB) with configurable pull-up, mode, and data control registers - all accessible via memory-mapped I/O.
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 - defines maximum instruction throughput (10 MIPS typical) and real-time response capability. |
| On-Chip Memory | 128 KB Flash ROM (user-programmable, 10k cycle endurance) + 8 KB SRAM - eliminates external memory need for compact systems. |
| Power Modes | Sleep, Standby, Subsleep, Subactive - enables sub-10 µA current draw in Subsleep for battery-backed operation. |
| Timer Resources | Timer A (interval/clock output) + Timer V (PWM with dual compare registers TCORA/TCORB) - supports precise timing and motor control waveforms. |
| Communication Interface | Full-duplex UART with status flags (TXD/RXD, framing/parity error detection) - enables serial diagnostics and host communication without external transceivers. |
| Subclock Support | Dedicated 32.768 kHz crystal oscillator input (XIN/XOUT pins) - enables accurate real-time clock functionality independent of main system clock. |
Pinout & Package
HD64F3694FYJE is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with thermal pad. Pin functions are defined per the H8/3694 Group Hardware Manual Rev.4.00, including dedicated reset (RES), NMI, clock inputs (XIN/XOUT, CLKIN), and multi-function I/O ports (P1–P8, PB).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RES | Active-low reset input | Asynchronous hardware reset; must be held low ≥1024 main clock cycles for reliable initialization. |
| NMI | Non-maskable interrupt input | Edge-triggered (rising/falling selectable); reserved for E10T debugger when enabled - not available for user application. |
| XIN / XOUT | Crystal oscillator input/output | Supports 1–20 MHz crystal or ceramic resonator; internal oscillator circuit eliminates external components for basic clocking. |
| CLKIN | External clock input | Accepts TTL/CMOS-level clock signal (1–20 MHz); bypasses internal oscillator for precision or noise-sensitive timing. |
| P10–P17 | Port 1 bidirectional I/O | Configurable as general-purpose I/O or alternate functions (e.g., UART TXD/RXD, Timer A/V signals); pull-up control register (PUCR1) enables weak pull-ups. |
| P85–P87 | Port 8 pins | Reserved for E10T debug interface; unavailable for user I/O unless external hardware isolates them from debugger connection. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash programming/erasing | Supports in-system programming (ISP) via boot mode or user program mode - enables field firmware updates without device removal. |
| Hardware protection for Flash | Lock bits prevent accidental erase/write during normal operation - critical for production firmware integrity. |
| Multi-level power-down control | Four distinct low-power states with configurable module standby (MSTCR1) - allows selective peripheral shutdown while retaining RAM content. |
| Timer V PWM flexibility | Independent TCORA/TCORB registers enable asymmetric PWM generation and precise pulse delay from TRGV trigger - suitable for motor phase control. |
| Memory-mapped peripheral registers | All I/O ports, timers, and UART registers reside in fixed address ranges (e.g., PDR1 at 0xF00000) - simplifies driver development and avoids special instruction overhead. |
Applications
| Industrial PLC I/O Module | Consumer Appliance Controller |
|---|---|
Use Scenario: Real-time monitoring and actuation of sensors/relays in compact programmable logic controllers with limited board space. IC Role / Device Role / Timing Role: Main system controller executing ladder logic, managing UART-based HMI communication, and generating precise timing for solenoid drivers via Timer V PWM. Use Value: Integrated 128 KB Flash and 8 KB RAM eliminate external memory, reducing BOM cost and PCB area; sub-10 µA Subsleep mode extends battery life during idle periods. | Use Scenario: Embedded control of washing machine drum motion, water valve sequencing, and display interface in cost-sensitive white goods. IC Role / Device Role / Timing Role: Central MCU coordinating motor control (via Timer V PWM), temperature sensing (ADC interface), and user input (key scan via Port 1–2). Use Value: 20 MHz operation ensures fast response to safety-critical events (e.g., lid open detection); hardware Flash lock prevents unauthorized firmware modification. |
| Point-of-Sale Terminal | Building Automation Sensor Node |
Use Scenario: Compact, low-power terminal handling barcode scanning, receipt printing, and secure transaction logging. IC Role / Device Role / Timing Role: Host processor interfacing with UART-connected scanner/printers, managing Flash-resident firmware updates, and maintaining RTC via 32.768 kHz subclock. Use Value: Subclock generator enables accurate time-stamping of transactions without external RTC IC; 10,000 Flash write cycles support frequent firmware patches over product lifetime. | Use Scenario: Wireless sensor node collecting temperature/humidity data and transmitting via UART-to-LoRa bridge in HVAC monitoring systems. IC Role / Device Role / Timing Role: Data acquisition controller reading analog sensors (via external ADC), buffering readings in on-chip RAM, and triggering UART transmission on schedule using Timer A interval interrupts. Use Value: Sleep mode current <100 µA extends battery life to >2 years; memory-mapped I/O simplifies sensor polling routines and reduces code size. |
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 H8/300H core but 64 KB Flash, no Timer V; 80-pin PQFP package. | Lacks PWM-capable Timer V and has reduced memory - unsuitable for motor control or larger firmware. | Select only if application requires lower cost and smaller footprint, and does not need advanced PWM or >64 KB code space. |
| R5F366TAADFP | H8S/2600 series successor: 32-bit CPU, 256 KB Flash, enhanced peripherals, but higher voltage (3.3 V) and different pinout. | Not pin-compatible; requires PCB redesign and software porting - suited for next-gen designs needing higher performance. | Choose for new designs where future scalability, larger memory, and 32-bit processing justify migration effort and cost increase. |
Compared with HD64F3694FYJE, HD64F3687FV offers cost reduction at the expense of PWM capability and memory, while R5F366TAADFP delivers architectural advancement but demands full hardware and firmware revalidation - making HD64F3694FYJE optimal for stable, Flash-rich, PWM-dependent embedded control.
Availability
HD64F3694FYJE is available at Aetrix Electronics and suitable for industrial PLC modules, consumer appliance controllers, point-of-sale terminals, and building automation sensor nodes requiring stable component supply and long-term lifecycle support.
Supply support for HD64F3694FYJE 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 Technology Corp. (now part of Renesas Electronics Corporation) is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and consumer markets.
The H8/3694 Group was designed as a cost-optimized, low-power 16-bit MCU family targeting resource-constrained embedded systems requiring Flash-based firmware, deterministic real-time response, and integrated peripherals - especially where legacy H8/300 code compatibility is required.
FAQ
What is the maximum operating frequency of the HD64F3694FYJE?
The HD64F3694FYJE supports a maximum operating frequency of 20 MHz when driven by an external crystal, ceramic resonator, or clock source. This frequency determines its instruction execution speed (up to 10 MIPS) and real-time timing resolution. Operation above this limit is not guaranteed and may cause instability or data corruption in the HD64F3694FYJE.
Does the HD64F3694FYJE include on-chip Flash memory, and what is its endurance?
Yes, the HD64F3694FYJE integrates 128 KB of on-chip Flash memory with guaranteed endurance of 10,000 write/erase cycles. This Flash supports in-system programming via boot mode or user program mode, enabling field firmware updates. The HD64F3694FYJE also includes hardware and software protection mechanisms to prevent accidental erasure during normal operation.
Can the HD64F3694FYJE operate in low-power modes, and which ones are supported?
Yes, the HD64F3694FYJE supports four low-power modes: Sleep, Standby, Subsleep, and Subactive. Subsleep mode achieves sub-10 µA current consumption while retaining RAM content and subclock operation - ideal for battery-backed RTC applications. Mode transitions are controlled via SYSCR1/SYSCR2 and MSTCR1 registers in the HD64F3694FYJE.
What debugging tools are compatible with the HD64F3694FYJE?
The HD64F3694FYJE is fully supported by the Renesas E10T on-chip debugging emulator and the E7 emulator. When using E10T, pins NMI, P85, P86, and P87 are reserved for debug communication and cannot be used as general-purpose I/O. The HD64F3694FYJE also supports standard H8/300H toolchains including C/C++ compilers and simulators referenced in the ADE-702-247 and ADE-702-282 manuals.
Is the HD64F3694FYJE pin-compatible with other members of the H8/3694 Group?
No - the HD64F3694FYJE uses a 100-pin LQFP package, while other variants like HD64F3687FV use 80-pin PQFP. Pin assignments differ across packages, and even within the same pin count, function mapping varies between subgroups (e.g., H8/3694F vs. H8/3694N). Always verify pin functions against the specific HD64F3694FYJE Hardware Manual Rev.4.00 before PCB layout.
HD64F3694FYJE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Core Processor:
- -
- Number of Cores/Bus Width:
- -
- Speed:
- -
- Co-Processors/DSP:
- -
- RAM Controllers:
- -
- Graphics Acceleration:
- -
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Additional Interfaces:
- -
HD64F3694FYJE FAQ
1.How can I place an order for HD64F3694FYJE through Aetrix?
Please submit a Request for Quotation (RFQ) for HD64F3694FYJE 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 HD64F3694FYJE reliable?
The price and inventory of HD64F3694FYJE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD64F3694FYJE is usually 5 days.
3.What payment methods are accepted for HD64F3694FYJE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD64F3694FYJE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD64F3694FYJE?
HD64F3694FYJE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD64F3694FYJE 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 HD64F3694FYJE?
For technical support, including HD64F3694FYJE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD64F3694FYJE requirements.
6.How does Aetrix verify that HD64F3694FYJE is sourced from the original manufacturer or authorized distributors?
All HD64F3694FYJE 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 HD64F3694FYJE meets industry standards.
7.What is the process for return or replacement of HD64F3694FYJE?
All HD64F3694FYJE units undergo pre-shipment inspection (PSI). If there is an issue with HD64F3694FYJE, 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 HD64F3694FYJE part is unused and in its original packaging.
Return procedure for HD64F3694FYJE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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