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Renesas HD407A4384FTI
- Part No.:
- HD407A4384FTI
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD407A4384FTI.pdf
- Description:
- MCU, 4-BIT
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Inventory:1,471
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Product details
Overview
HD407A4384FTI from Renesas Technology Corp. is a 4-bit ZTAT™ microcontroller with on-chip PROM, 4,096-word ROM, 512-digit RAM, four 10-bit A/D converter channels, and 20 I/O pins-including four large-current source (10 mA max) and four sink (15 mA max) pins-designed for low-voltage battery charger control systems operating from 2.0 V to 5.5 V.
For engineers reviewing the HD407A4384FTI datasheet, HD407A4384FTI pinout, HD407A4384FTI application, or HD407A4384FTI equivalent, this page delivers verified technical context, package-validated pin functions, real-world use cases in power management, and actionable alternative selection guidance for legacy Hitachi-derived Renesas 4-bit MCU migration.
Technical Context
The HD407A4384FTI implements the HMCS400 CPU core and integrates an 8-bit timer, a 16-bit timer (configurable as two 8-bit timers), two timer outputs with PWM capability, edge-programmable event counter input, and an 8-bit clock-synchronous serial interface. It supports ceramic, crystal, or CR oscillation for main clock generation.
It features four analog input multiplexed pins (AN0–AN3), module-level standby modes (timers, serial interface, A/D), software-switchable system clock division (1/4 or 1/32), and wakeup from stop mode via single input (WU0). Guaranteed operation spans –40°C to +85°C under ZTAT™ PROM configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HMCS400 4-bit architecture with 16-level subroutine stack including interrupts |
| ROM Size | 4,096 words of on-chip ZTAT™ PROM-enables rapid prototyping and eliminates mask-ROM NRE delays |
| RAM Size | 512 digits of on-chip RAM for data storage and register backup during low-power modes |
| A/D Converter | 4-channel × 10-bit successive-approximation ADC-supports high-resolution sensor monitoring in battery charging feedback loops |
| I/O Capability | 20 total I/O pins: D0–D3 source up to 10 mA; D4–D9 sink up to 15 mA-directly drives LEDs, relays, or gate drivers without external buffers |
| Operating Voltage | 2.0 V to 5.5 V-optimized for single-cell Li-ion or multi-cell alkaline supply rails with brown-out resilience |
| Instruction Time | Min. 0.89 µs at 4.5 MHz (1/4 division)-deterministic timing for real-time charge-state transitions and safety-critical interrupt response |
Pinout & Package
HD407A4384FTI is packaged in a 30-pin plastic SSOP (FP-30D) with 0.65 mm pitch and 11.0 mm × 5.0 mm body size. Pin functions are validated per Renesas ADE-202-086C Rev. 4.0 documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 2) | Power Supply | Main digital supply input-must be decoupled near pin with 0.1 µF ceramic capacitor |
| GND (Pin 1) | Ground Reference | Digital ground return-requires low-impedance connection to PCB ground plane |
| AVCC (Pin 3) | Analog Power | A/D converter supply-tie directly to VCC with minimal trace length to reduce noise coupling |
| AVSS (Pin 8) | Analog Ground | A/D reference ground-connect adjacent to GND with separate low-noise path if possible |
| AN0–AN3 (Pins 4–7) | Analog Inputs | Four 10-bit A/D channels-support resistor-divider or direct sensor inputs for voltage/current sensing |
| D0–D9 (Pins 21–30) | General-Purpose I/O | D0–D3: 10 mA source for LED/anode drive; D4–D9: 15 mA sink for cathode/relay control |
| R00/WU0 (Pin 15) | Wake-up Input | Asynchronous stop-mode exit trigger-used for battery-insertion or fault-event recovery |
| RESET (Pin 14) | Reset Input | Active-low asynchronous reset-requires external pull-up and debounced reset circuit |
| OSC1/OSC2 (Pins 9–10) | Crystal Oscillator | Supports 32.768 kHz sub-clock (not used in HD407A4384FTI) or main clock up to 8.5 MHz |
| INT0 (Pin 21) | External Interrupt | Edge-programmable interrupt source-used for charger fault detection or thermal shutdown signaling |
Key Features
| Feature | Design Value |
|---|---|
| ZTAT™ PROM | Zero Turn-Around Time programming compatible with 27256 EPROM programmers-eliminates mask-ROM lead time for production ramp |
| Low-Power Modes | Two dedicated low-power states (stop & module standby)-reduces quiescent current to enable multi-year battery operation in portable chargers |
| Large-Current I/O | Eight high-drive pins (4 source + 4 sink) eliminate need for discrete transistors in LED status indicators or MOSFET gate control |
| Integrated Peripherals | Single-chip solution includes 10-bit A/D, 8-/16-bit timers, synchronous serial interface, and event counter-reduces BOM count and PCB area |
| Wide Voltage Range | 2.0 V to 5.5 V operation enables direct compatibility with both 3.3 V logic systems and 5 V legacy peripherals |
Applications
| Smart Battery Charger | Industrial Power Supply Monitor |
|---|---|
|
Use Scenario: Real-time monitoring of cell voltage, temperature, and charge current during CC/CV charging cycles. IC Role / Device Role / Timing Role: Primary controller executing state-machine logic, sampling analog sensors via 10-bit A/D, and modulating PWM output for charge regulation. Use Value: Integrated 4-channel A/D and large-current I/O enable direct sensor interfacing and FET gate driving-no external signal conditioning or level-shifting required. |
Use Scenario: Supervision of multi-rail DC-DC converters in factory automation equipment with fault logging and remote alerting. IC Role / Device Role / Timing Role: Standalone supervisor managing overvoltage/undervoltage thresholds, thermal limits, and communication via synchronous serial interface. Use Value: On-chip 512-digit RAM stores fault history across power cycles; wide 2.0–5.5 V range ensures stable operation across varying input conditions. |
| Portable Medical Device Charger | Energy-Efficient LED Driver Controller |
|
Use Scenario: Charging compliance for Class II medical devices requiring precise current limiting and thermal derating per IEC 60601-1. IC Role / Device Role / Timing Role: Safety-critical controller performing redundant A/D sampling, watchdog-timed state transitions, and fail-safe shutdown on fault detection. Use Value: –40°C to +85°C guaranteed operation and ZTAT™ field-programmability support regulatory revalidation without hardware change. |
Use Scenario: Dimmable constant-current LED driver for signage or emergency lighting with ambient light sensing and thermal foldback. IC Role / Device Role / Timing Role: System-on-chip managing PWM dimming, analog ambient light input (AN0), and thermal feedback (AN1) to adjust output current. Use Value: Four large-current sink pins (D4–D9) directly drive LED strings up to 15 mA each-reducing component count and improving reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD404384FT | Mask ROM version (4,096 words); same FP-30D package and pinout; no ZTAT™ programmability | Requires upfront mask fabrication-suitable only for high-volume, stable-design deployments | Select HD404384FT only when design is finalized and volume justifies mask NRE cost; not suitable for iterative development. |
| HD407C4384FT | ZTAT™ PROM version with extended instruction timing (1.14 µs min at 3.5 MHz); identical peripheral set and package | Lower maximum clock frequency reduces real-time responsiveness-acceptable for slower control loops like basic battery top-off | Choose HD407C4384FT where cost sensitivity outweighs performance needs and 3.5 MHz operation suffices. |
Compared with HD407A4384FTI, HD404384FT trades field-programmability for lower unit cost in mass production, while HD407C4384FT sacrifices speed for broader process margin-making HD407A4384FTI optimal for rapid prototyping and mid-volume, performance-sensitive charger designs.
Availability
HD407A4384FTI is available at Aetrix Electronics and suitable for smart battery charger design, industrial power supply supervision, portable medical device charging, and energy-efficient LED driver control requiring stable component supply and long-term lifecycle support.
Supply support for HD407A4384FTI 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 formed in 2003 through the merger of Hitachi and Mitsubishi Electric's semiconductor operations.
The HD407A4384FTI belongs to the HD404384 Series of low-voltage 4-bit microcontrollers designed specifically for cost-sensitive, low-power embedded control in battery-powered and industrial power management applications.
FAQ
What is the ZTAT™ technology used in the HD407A4384FTI?
ZTAT™ (Zero Turn-Around Time) is a trademarked Hitachi technology implemented in the HD407A4384FTI that provides on-chip PROM programmable like an EPROM (27256-compatible). This allows firmware updates without mask changes, enabling rapid iteration during development and seamless transition from prototype to mass production-unlike mask ROM versions such as HD404384FT.
Does the HD407A4384FTI support a 32.768 kHz sub-oscillator for RTC functions?
No, the HD407A4384FTI does not support the 32.768 kHz sub-oscillator. That feature is exclusive to the HD404374 Series (e.g., HD404374FT). The HD407A4384FTI belongs to the HD404384 Series, which only supports main clock oscillation via ceramic resonator, crystal, or external clock-confirmed in the ADE-202-086C Rev. 4.0 datasheet section "On-chip oscillators".
What are the key differences between HD407A4384FTI and HD407C4384FT?
The HD407A4384FTI guarantees minimum instruction execution time of 0.89 µs at 4.5 MHz, while HD407C4384FT requires 1.14 µs at 3.5 MHz due to process variation tolerance. Both share identical ZTAT™ PROM, 4,096-word ROM, 512-digit RAM, and peripheral set-but HD407A4384FTI delivers higher deterministic performance for time-critical charge control loops.
Can the HD407A4384FTI operate at 1.8 V?
No. The HD407A4384FTI is a ZTAT™ PROM device with a specified operating voltage range of 2.0 V to 5.5 V. Only mask ROM variants (e.g., HD404384FT) support 1.8 V minimum operation. This distinction is explicitly stated in the "Operating voltage (V)" table on page 9 of ADE-202-086C Rev. 4.0.
Is the HD407A4384FTI pin-compatible with HD404384FT?
Yes-HD407A4384FTI and HD404384FT share identical FP-30D package, pin count, pin arrangement, and electrical pin functions per the "Pin Arrangement" and "Pin Description" sections of ADE-202-086C Rev. 4.0. They differ only in memory type (ZTAT™ PROM vs. mask ROM), making HD407A4384FTI a drop-in replacement for development and HD404384FT for final production.
HD407A4384FTI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
HD407A4384FTI FAQ
1.How can I place an order for HD407A4384FTI through Aetrix?
Please submit a Request for Quotation (RFQ) for HD407A4384FTI 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 HD407A4384FTI reliable?
The price and inventory of HD407A4384FTI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD407A4384FTI is usually 5 days.
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HD407A4384FTI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD407A4384FTI 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 HD407A4384FTI?
For technical support, including HD407A4384FTI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD407A4384FTI requirements.
6.How does Aetrix verify that HD407A4384FTI is sourced from the original manufacturer or authorized distributors?
All HD407A4384FTI 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 HD407A4384FTI meets industry standards.
7.What is the process for return or replacement of HD407A4384FTI?
All HD407A4384FTI units undergo pre-shipment inspection (PSI). If there is an issue with HD407A4384FTI, 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 HD407A4384FTI part is unused and in its original packaging.
Return procedure for HD407A4384FTI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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