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Renesas HD4074339S
- Part No.:
- HD4074339S
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD4074339S.pdf
- Description:
- MICROCONTROLLER, 4-BIT, OTPROM
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Inventory:271
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Product details
Overview
HD4074339S from Renesas Electronics is a 4-bit ZTAT™ PROM-based microcontroller with 16,384-word on-chip PROM, integrated 8-bit × 12-channel A/D converter, three timers (including input capture), and 54 I/O pins - 30 of which support 40 V high-voltage drive for direct fluorescent display control. It operates at 1 µs instruction cycle time (fOSC = 4 MHz, 1/4 division) and features four low-power modes including Stop and Standby.
For engineers reviewing the HD4074339S datasheet, HD4074339S pinout, HD4074339S application, or HD4074339S equivalent, this page delivers verified technical identity, PROM programming interface details, MCU-mode vs. PROM-mode pin mapping, real-time A/D timing constraints, and validated alternatives for legacy HMCS400-series embedded designs requiring mask-ROM-to-PROM transition capability.
Technical Context
The HD4074339S implements the HMCS400 architecture with a 14-bit program counter, 10-bit address bus, and 4-bit ALU. Its memory map allocates $0000–$3FFF (16 kwords) to PROM program space, with dedicated vector area ($0000–$000F), zero-page subroutine region ($0000–$003F), and pattern table area ($0000–$0FFF).
It supports dual-clock operation: main system clock via ceramic/crystal oscillator on OSC1/OSC2 (up to 4 MHz), and subclock via 32.768 kHz crystal on X1/X2. The A/D converter uses AVCC/AVSS as dedicated analog supply rails, with 12 single-ended analog inputs (AN0–AN11) and programmable conversion timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PROM capacity | 16,384 × 10-bit words - matches 27256 EPROM pinout and programming voltage requirements for ZTAT™ rapid prototyping. |
| CPU architecture | 4-bit HMCS400 core with 14-bit PC, 10-bit address bus, and 4-bit ALU - enables deterministic 1 µs instruction execution at 4 MHz system clock. |
| A/D converter | 8-bit resolution, 12-channel single-ended input (AN0–AN11) - supports simultaneous sampling control via AMR1/AMR2 register configuration. |
| Timers | Three independent timers: Timer A (input capture), Timer B (event counter), Timer C (alarm output) - each with dedicated interrupt vectors and mode registers (TMA, TMB1/TMB2, TMC). |
| I/O capability | 54 total pins: 30 high-voltage (40 V max) for direct fluorescent display drive, 24 standard-voltage I/O - configurable per port via PMRA/PMRB/PMRC registers. |
| Power management | Four low-power modes: Standby (CPU halted, peripherals active), Stop (all clocks stopped), Watch (subclock only), Subactive (subclock + limited I/O) - controlled by STOPC pin and SSR1/SSR2 registers. |
| Serial interface | 8-bit clock-synchronous serial port (SCK/SI/SO) - supports master/slave operation with programmable clock polarity and phase via SMR register. |
Pinout & Package
HD4074339S is available in 64-pin plastic DIP (DP-64S) and plastic QFP (FP-64B) packages. Pin functions differ between MCU mode and PROM programming mode - critical for socket adapter selection and programmer compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (DP-64S pin 33 / FP-64B pin 27) | Primary power supply | Supplies core logic and I/O; must be decoupled with 0.1 µF capacitor near pin. |
| GND (DP-64S pin 16 / FP-64B pin 10) | Ground reference | Common return for digital and analog sections; separate AVSS required for A/D accuracy. |
| RA1/Vdisp (DP-64S pin 64 / FP-64B pin 58) | High-voltage output enable | Drives fluorescent display anode when selected by mask option; rated for 40 V continuous output. |
| TEST (DP-64S pin 12 / FP-64B pin 6) | Factory test interface | Must be tied to GND in user applications; not accessible during normal operation. |
| RESET (DP-64S pin 13 / FP-64B pin 7) | Active-low reset input | Asynchronous reset signal; requires ≥100 ns pulse width for reliable initialization. |
| OSC1/OSC2 (DP-64S pins 14/15 / FP-64B pins 8/9) | Main system oscillator interface | Supports ceramic resonator (3–4 MHz) or external clock source; internal feedback resistor enabled. |
| X1/X2 (DP-64S pins 17/18 / FP-64B pins 11/12) | 32.768 kHz subclock oscillator | Enables real-time watch mode and low-power wake-up; requires load capacitance matching. |
| D0–D13 (DP-64S pins 34–47 / FP-64B pins 28–41) | High-voltage I/O port | All 14 pins support 40 V drive; individually configurable as input/output via DCR registers. |
| AN0–AN11 (DP-64S pins 20–31 / FP-64B pins 14–25) | Analog input channels | 12 single-ended inputs referenced to AVSS; require AVCC bypassing and layout isolation from digital noise. |
Key Features
| Feature | Design Value |
|---|---|
| ZTAT™ PROM programming | Enables in-system or socket-based programming using standard 27256-compatible PROM writers (e.g., DATA I/O 121B), eliminating mask ROM turnaround delays. |
| Fluorescent display driver support | 30 high-voltage I/O pins (40 V max) and dedicated Vdisp pin allow direct segment/anode drive without external HV transistors or drivers. |
| Multi-mode low-power operation | Stop mode reduces current to <10 µA; Watch mode maintains 32.768 kHz timing while disabling CPU - ideal for battery-powered instrumentation. |
| Integrated A/D with flexible timing | 12-channel 8-bit converter with software-selectable conversion start, channel scan order, and interrupt-on-completion - no external sample-hold needed. |
| Input capture timer with event counting | Timer A captures external pulse edges with 1 µs resolution; Timer B counts pulses on EVNB pin - supports tachometer and encoder interfacing. |
| Alarm and buzzer output | BUZZ pin (D3) generates programmable-frequency square wave for audible alerts; TOC pin provides timer-driven pulse output for LED flash control. |
Applications
| Industrial Panel Meters | Appliance Control Panels |
|---|---|
Use Scenario: Digital panel meter measuring temperature, pressure, or flow with local display and alarm thresholds. IC Role / Device Role / Timing Role: HD4074339S acts as system controller, performing A/D acquisition, linearization, numeric display driving, and alarm decision logic. Use Value: Integrated 12-channel A/D and high-voltage I/O eliminate external ADC and display drivers, reducing BOM count and PCB area by ≥30%. |
Use Scenario: Microwave oven or washing machine control board managing user interface, motor sequencing, and safety interlocks. IC Role / Device Role / Timing Role: HD4074339S serves as main appliance MCU, coordinating keypad scanning, relay control, buzzer feedback, and fault monitoring. Use Value: Four low-power modes enable standby current <10 µA, meeting IEC 62301 standby power compliance for white goods. |
| Fluorescent Display Terminals | Legacy Equipment Upgrades |
Use Scenario: Point-of-sale terminal or industrial HMI using multiplexed fluorescent tube display for high-brightness, wide-temperature operation. IC Role / Device Role / Timing Role: HD4074339S directly drives fluorescent segments and grids using RA1/Vdisp and D0–D13 high-voltage outputs. Use Value: Eliminates discrete HV driver ICs and associated gate resistors, simplifying thermal design and improving reliability in 0–70°C operating range. |
Use Scenario: Retrofitting aging equipment originally designed for HD404339 mask-ROM MCU with field-programmable functionality. IC Role / Device Role / Timing Role: HD4074339S replaces HD404339 in identical footprint, enabling firmware updates and bug fixes without hardware redesign. Use Value: ZTAT™ PROM allows reprogramming in production test fixtures using same socket adapters (e.g., Hitachi HS4339ESS01H), cutting NRE cost by >60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD404339S | Mask-ROM version with identical pinout and architecture but unchangeable firmware; no PROM programming interface. | Suitable only for high-volume, stable-firmware deployments where field updates are unnecessary. | Select HD404339S only when firmware is finalized and cost-per-unit optimization outweighs flexibility needs. |
| HD4074339FS | Same PROM silicon in FP-64B QFP package instead of DP-64S DIP; identical electrical specs and PROM programming behavior. | Required for surface-mount assembly lines; supports automated optical inspection and reflow soldering. | Choose HD4074339FS when board space constraints or manufacturing process require QFP packaging. |
Compared with HD404339S and HD4074339FS, the HD4074339S offers identical PROM functionality and DIP packaging but differs from the QFP variant in thermal resistance (higher θJA), mechanical mounting, and socket compatibility - making it optimal for through-hole prototyping and legacy repair scenarios.
Availability
HD4074339S is available at Aetrix Electronics and suitable for industrial panel meters, appliance control panels, fluorescent display terminals, and legacy equipment upgrades requiring stable component supply and long-term obsolescence management.
Supply support for HD4074339S 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial and consumer systems.
The HD4074339S belongs to the HMCS400-Series microcontroller family, designed specifically for cost-sensitive, low-power embedded applications requiring integrated A/D, display drive, and PROM flexibility in legacy 4-bit architectures.
FAQ
What is the PROM programming voltage requirement for HD4074339S?
The HD4074339S requires VPP = +25 V ± 0.5 V applied to the TEST pin during PROM programming mode, as specified in the HD404339 Series Rev. 7.0 datasheet. This matches standard 27256 EPROM programming voltage and is supported by compatible programmers like the DATA I/O 121B with appropriate socket adapter (e.g., Hitachi HS4339ESS01H). Applying incorrect VPP may permanently damage the PROM array.
How does the HD4074339S differ from HD404339S in terms of firmware update capability?
The HD4074339S contains on-chip PROM that can be programmed multiple times using a standard PROM writer, enabling firmware revisions and field updates. In contrast, the HD404339S uses mask-ROM with fixed firmware defined during wafer fabrication - no post-manufacture changes are possible. Both share identical instruction set, pinout, and peripheral functionality.
Which pins on HD4074339S support 40 V high-voltage operation, and how are they configured?
HD4074339S supports 40 V operation on 30 I/O pins: D0–D13 (14 pins), R10–R23 (12 pins), and R80–R93 (4 pins), plus RA1/Vdisp. Configuration is controlled by mask option during manufacturing - users cannot change HV capability per pin in-circuit. These pins must be driven within absolute maximum ratings and isolated from lower-voltage logic interfaces.
Can HD4074339S operate in low-power modes while maintaining A/D conversion functionality?
No - A/D conversion is disabled in Stop, Watch, and Subactive modes. Only Standby mode retains full peripheral operation including A/D, timers, and serial interface while halting the CPU. For periodic low-power sampling, use Standby mode with timer-triggered wake-up and conversion, achieving average current <50 µA in duty-cycled applications.
What is the purpose of the TEST pin on HD4074339S, and how should it be connected in normal operation?
The TEST pin on HD4074339S is reserved for factory testing and must be connected to GND in all user applications. It is not functional during MCU operation and has no user-accessible control register. Leaving it floating or applying voltage may cause unpredictable reset behavior or failure to initialize correctly after power-up.
HD4074339S 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:
HD4074339S FAQ
1.How can I place an order for HD4074339S through Aetrix?
Please submit a Request for Quotation (RFQ) for HD4074339S 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 HD4074339S reliable?
The price and inventory of HD4074339S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD4074339S is usually 5 days.
3.What payment methods are accepted for HD4074339S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD4074339S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD4074339S?
HD4074339S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD4074339S 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 HD4074339S?
For technical support, including HD4074339S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD4074339S requirements.
6.How does Aetrix verify that HD4074339S is sourced from the original manufacturer or authorized distributors?
All HD4074339S 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 HD4074339S meets industry standards.
7.What is the process for return or replacement of HD4074339S?
All HD4074339S units undergo pre-shipment inspection (PSI). If there is an issue with HD4074339S, 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 HD4074339S part is unused and in its original packaging.
Return procedure for HD4074339S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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