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Renesas HD407A4069H
- Part No.:
- HD407A4069H
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD407A4069H.pdf
- Description:
- MCU, 4-BIT
- Quantity:
- Payment:
- Shipping:
Inventory:796
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Product details
Overview
HD407A4069H from Hitachi is a 4-bit microcontroller in the H400 series featuring 16KB × 10-bit ROM, 1024 × 4-bit RAM, 55 I/O lines, three 8-bit timers, and watchdog timer functionality. It operates across a wide supply range of 1.8 V to 6.0 V and supports Stop, Standby, and Subactive power modes. This device is designed for cost-sensitive embedded control applications requiring integrated timing, serial communication, and robust I/O handling - such as industrial panel controllers and appliance user-interface modules.
For engineers reviewing the HD407A4069H datasheet, HD407A4069H pinout, HD407A4069H application, or HD407A4069H equivalent, key selection criteria include its OTP (One-Time Programmable) ROM configuration, FP-64A package with 64 pins, synchronous serial interface (SCI), and support for 32 kHz subclock operation in low-power modes.
Technical Context
The HD407A4069H implements a dedicated 4-bit CPU core optimized for bit-level I/O and status flag manipulation, with 80% of instructions executing in a single cycle. Its architecture includes direct addressing to both ROM and RAM, bit manipulation capability on RAM and I/O ports, and binary/BCD arithmetic support.
It integrates a synchronous serial port (SCI) for host communication, three independent 8-bit timers with interrupt capability, and a watchdog timer for system reliability. Power management includes Stop, Standby, and Subactive modes, enabled by internal clock gating and subclock (32 kHz) support - critical for battery-powered or energy-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Architecture | 4-bit H400 core with 10-bit-wide ROM; 75% single-cycle instructions for deterministic real-time control. |
| Memory | 16KB × 10-bit ROM (OTP), 1024 × 4-bit RAM - sufficient for standalone firmware without external memory. |
| I/O Capability | 55 programmable I/O lines - enables direct drive of LED segments, buttons, relays, and sensors in compact systems. |
| Timers & WDT | Three 8-bit timers + watchdog timer - supports periodic task scheduling, pulse generation, and fail-safe reset. |
| Serial Interface | 1 × synchronous serial port (SCI) - provides reliable full-duplex communication with host MCUs or peripherals. |
| Power Modes | Stop, Standby, Subactive - reduces current draw to µA-range during idle, extending battery life in portable devices. |
| Supply Voltage | 1.8 V to 6.0 V - allows direct operation from single-cell Li-ion, alkaline, or regulated 3.3/5 V rails. |
Pinout & Package
HD407A4069H is housed in a 64-pin Flat Package (FP-64A), surface-mount compatible with standard reflow profiles. Pin assignment follows Hitachi's H400-series layout convention, with dedicated ports (P0–P7), control signals (RESET, XIN/XOUT), SCI interface (TXD/RXD), timer I/O (TO0–TO2), and power/ground distribution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | 8-bit general-purpose port with pull-up option; used for keypad scanning or LED segment control. |
| P10–P17 | Port 1 bidirectional I/O | 8-bit port supporting input capture and PWM output via timer channels. |
| P20–P27 | Port 2 bidirectional I/O | 8-bit port with SCI signal routing (TXD/RXD) and subclock input (XIN/XOUT). |
| P30–P37 | Port 3 bidirectional I/O | 8-bit port including timer output (TO0–TO2) and interrupt request inputs (INT0–INT2). |
| VDD / VSS | Power supply / Ground | Dual VDD/VSS pairs per quadrant ensure stable operation and noise immunity at 64-pin density. |
| RESET | Active-low reset input | Asynchronous reset pin enabling hardware-initiated recovery after brown-out or fault condition. |
Key Features
| Feature | Design Value |
|---|---|
| OTP ROM programming | Enables final firmware burn-in without mask cost - ideal for low-to-mid volume production runs. |
| Subclock (32 kHz) support | Allows precise real-time clock functions and ultra-low-power wake-up intervals in Standby mode. |
| Bit-manipulation instructions | Direct set/reset/test of individual I/O or RAM bits - simplifies status monitoring and control logic. |
| Synchronous serial interface (SCI) | Hardware-accelerated full-duplex serial link - eliminates bit-banging overhead and improves timing accuracy. |
| Multi-mode power management | Three distinct low-power states with configurable wake sources - extends operational lifetime in battery-powered equipment. |
Applications
| Industrial Panel Controller | Home Appliance UI Module |
|---|---|
Use Scenario: Localized control of HVAC setpoints, fan speed, and display feedback in wall-mounted thermostats. IC Role / Device Role / Timing Role: Primary system controller managing sensor reads, button debouncing, 7-segment/LCD updates, and relay actuation. Use Value: Integrated 55 I/O lines eliminate external GPIO expanders; OTP ROM ensures firmware security and version control. | Use Scenario: User interface and motor timing coordination in washing machines and dishwashers. IC Role / Device Role / Timing Role: Real-time coordinator between front-panel buttons, LED indicators, buzzer alerts, and main MCU over SCI. Use Value: Three 8-bit timers enable concurrent countdowns, spin-cycle timing, and buzzer tone generation without host intervention. |
| Portable Medical Monitor | Smart Energy Meter Interface |
Use Scenario: Battery-powered blood pressure or glucose meter with LCD readout and button navigation. IC Role / Device Role / Timing Role: Low-power subsystem controller handling display refresh, button scan, and alert generation. Use Value: Subactive mode with 32 kHz subclock sustains timekeeping and wake-on-button while drawing <5 µA. | Use Scenario: Front-end human-machine interface for utility meters with tariff display and tamper detection. IC Role / Device Role / Timing Role: Dedicated interface processor managing optical port communication, LCD driver, and secure event logging. Use Value: Wide 1.8–6.0 V supply range accommodates aging battery packs and supercapacitor backup without regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD407A4369S | Same 16KB ROM/1024 RAM, but DP-64S package (DIP-64) instead of FP-64A; no subclock support. | Preferred for through-hole prototyping or legacy board upgrades where surface-mount is not feasible. | Select HD407A4369S only when DIP packaging and absence of 32 kHz timing are acceptable. |
| HD407A4669H | Includes on-chip DTMF generator and 32seg×4com LCD driver; same FP-64A package and power specs. | Targeted at telecom handsets and feature phones requiring tone generation and basic display control. | Choose HD407A4669H if DTMF signaling or integrated LCD driving is required - otherwise HD407A4069H offers leaner BOM. |
Compared with HD407A4369S, HD407A4069H adds subclock capability for RTC functions and uses surface-mount packaging for higher-density layouts; versus HD407A4669H, it omits DTMF and LCD drivers, reducing cost and complexity for non-telecom applications.
Availability
HD407A4069H is available at Aetrix Electronics and suitable for industrial panel controllers, home appliance UI modules, portable medical monitors, and smart energy meter interfaces requiring stable component supply across extended product lifecycles.
Supply support for HD407A4069H 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
Hitachi Ltd. (now part of Renesas Electronics Corporation) was a leading Japanese semiconductor manufacturer specializing in microcontrollers, memory, and power devices before its semiconductor division merged into Renesas in 2010.
The HD407A4069H belongs to the H400 series - a family of 4-bit ASSPs (Application-Specific Standard Products) engineered for cost-sensitive, high-volume embedded control tasks where integration, power efficiency, and OTP flexibility outweigh raw processing performance.
FAQ
What is the memory configuration of the HD407A4069H?
The HD407A4069H features 16KB × 10-bit One-Time Programmable (OTP) ROM and 1024 × 4-bit RAM. This configuration supports self-contained firmware execution without external memory, making HD407A4069H suitable for fixed-function embedded systems where field updates are unnecessary and cost optimization is critical.
Does the HD407A4069H support low-power operation?
Yes, the HD407A4069H supports Stop, Standby, and Subactive power modes. In Subactive mode, it maintains operation of the 32 kHz subclock and selected peripherals while reducing current draw to microamp levels - enabling HD407A4069H to serve as a timekeeping and wake-up controller in battery-powered applications.
What package type is used for the HD407A4069H?
The HD407A4069H is supplied in a 64-pin Flat Package (FP-64A), a surface-mount package with gull-wing leads. This package supports automated assembly and provides thermal and electrical performance suitable for industrial-grade operating temperatures up to 85°C.
Can the HD407A4069H communicate with other microcontrollers?
Yes, the HD407A4069H includes one synchronous serial interface (SCI) channel capable of full-duplex communication. This allows HD407A4069H to exchange data reliably with host processors, sensors, or displays using hardware-controlled timing - eliminating software UART overhead and improving protocol robustness.
Is the HD407A4069H still in active production?
The HD407A4069H is a legacy Hitachi part originally released in the late 1990s. While no longer in active production by Renesas, Aetrix Electronics maintains verified inventory and long-term supply support for HD407A4069H to serve existing designs and maintenance programs requiring exact form-fit-function replacement.
HD407A4069H 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:
HD407A4069H FAQ
1.How can I place an order for HD407A4069H through Aetrix?
Please submit a Request for Quotation (RFQ) for HD407A4069H 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 HD407A4069H reliable?
The price and inventory of HD407A4069H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD407A4069H is usually 5 days.
3.What payment methods are accepted for HD407A4069H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD407A4069H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD407A4069H?
HD407A4069H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD407A4069H 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 HD407A4069H?
For technical support, including HD407A4069H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD407A4069H requirements.
6.How does Aetrix verify that HD407A4069H is sourced from the original manufacturer or authorized distributors?
All HD407A4069H 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 HD407A4069H meets industry standards.
7.What is the process for return or replacement of HD407A4069H?
All HD407A4069H units undergo pre-shipment inspection (PSI). If there is an issue with HD407A4069H, 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 HD407A4069H part is unused and in its original packaging.
Return procedure for HD407A4069H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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