My Inquiry
My Account
Renesas HD4074889TE
- Part No.:
- HD4074889TE
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
HD4074889TE.pdf
- Description:
- 4-BIT, OTPROM, 4.2MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:509
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HD4074889TE from Renesas Electronics is a ZTAT™ 4-bit single-chip microcontroller with on-chip PROM (16,384 words), integrated LCD controller/driver (32 segments × 4 commons), 6-channel 8-bit A/D converter, and 46 I/O pins-including 4 large-current source (10 mA max) and 8 large-current sink (15 mA max) pins. It operates from 1.8 V to 5.5 V and supports low-power modes including stop, watch, standby, and subactive modes for battery-powered display control in remote controllers and home appliances.
For engineers reviewing the HD4074889TE datasheet, HD4074889TE pinout, HD4074889TE application, or HD4074889TE equivalent, this page delivers verified technical context, exact pin functions, real-world use cases in LCD-based embedded systems, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The HD4074889TE integrates a 16-bit timer (configurable as two 8-bit timers), two 8-bit timers, an 8-bit input capture circuit, two timer outputs (with PWM capability), and two edge-programmable event counter inputs. Its clock system includes main oscillator support (ceramic or crystal) and a dedicated 32.768 kHz sub-oscillator for real-time clock functionality.
It features a clock-synchronous 8-bit serial interface, six external interrupt sources (three external, six internal), and a subroutine stack depth of up to 16 levels. Minimum instruction execution time is 0.89 µs at fOSC = 4.5 MHz, and it supports software-selectable system clock division (1/4 or 1/32).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 4-bit single-chip microcomputer with ZTAT™ PROM (16,384 words) enabling zero-turnaround-time programming for rapid prototyping and production transition. |
| Operating Voltage | 1.8 V to 5.5 V - supports wide-range battery operation (e.g., two AA cells down to 2.0 V) and compatibility with legacy 5 V logic interfaces. |
| A/D Converter | 6 channels × 8-bit resolution - provides sufficient precision for analog sensor monitoring (e.g., temperature, light, potentiometer) in appliance UIs. |
| LCD Driver | 32 segments × 4 commons - drives alphanumeric or custom segment displays without external driver ICs, reducing BOM count and board space. |
| I/O Capability | 46 total I/O pins: 4 source (10 mA max), 8 sink (15 mA max) - directly drives LEDs, buzzers, and small relays without external buffers. |
| Low-Power Modes | 4 modes (stop, watch, standby, subactive) with 4 wakeup inputs - enables µA-level sleep current for multi-year battery life in remote controls. |
| Instruction Speed | Min. 0.89 µs per instruction at 4.5 MHz - ensures responsive keypad scanning and display refresh in real-time user interfaces. |
Pinout & Package
HD4074889TE is housed in an 80-pin plastic TQFP package (TFP-80C), measuring 12 mm × 12 mm × 1.4 mm, with 0.5 mm pitch and exposed thermal pad (non-electrical). This RoHS-compliant package supports automated SMT assembly and provides thermal performance suitable for sealed consumer enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 16) | Power supply input | Primary 1.8–5.5 V supply rail; decoupling capacitor required near pin for stable core and LCD operation. |
| GND (Pin 12) | Ground reference | Dedicated analog/digital ground return; must be connected to low-impedance PCB plane to minimize noise in A/D and LCD signals. |
| RESET (Pin 15) | Active-low reset input | Asynchronous hardware reset; requires external pull-up and debounced release for reliable power-on initialization. |
| OSC1/OSC2 (Pins 10/11) | Main system oscillator interface | Supports ceramic resonator (3–8 MHz) or crystal (up to 8 MHz); internal feedback resistor enables minimal external component count. |
| X1/X2 (Pins 14/13) | 32.768 kHz sub-oscillator | Connects to standard watch crystal for RTC function; X1 must be tied to VCC if unused to prevent leakage-induced stop-mode wakeups. |
| D0–D11 (Pins 17–28) | Bit-addressable I/O port | D0–D3: large-current source (10 mA); D4–D11: large-current sink (15 mA) - ideal for direct LED/buzzer drive without external transistors. |
| R00–R03 (Pins 29–32) | Wakeup input pins | Dedicated stop-mode wakeup sources - configured as edge-triggered inputs to resume operation on keypress or sensor event. |
| COM1–COM4 (Pins 73–76) | LCD common outputs | 4-line multiplexed common drivers - enable static or 1/4-duty LCD bias generation using internal voltage divider (V0–V3). |
| SEG1–SEG32 (Pins 41–72) | LCD segment outputs | 32 independent segment drivers - support custom character sets or graphical segments in 32×4 multiplexed displays. |
| TOB/TOC (Pins 36/37) | Timer output pins | Configurable PWM outputs - used for buzzer tone generation, LED dimming, or motor speed control in appliance UIs. |
Key Features
| Feature | Design Value |
|---|---|
| ZTAT™ PROM (16,384 words) | Enables field-programmable firmware without UV erasure or external programmers - cuts development cycle from debug to mass production. |
| Integrated LCD controller/driver (32×4) | Eliminates need for external LCD driver IC, reducing component count, PCB area, and EMI from external data buses. |
| 6-channel 8-bit A/D converter | Provides sufficient resolution and channel count for simultaneous sensing of battery voltage, ambient light, and user-input analog controls. |
| Large-current I/O (4×10 mA source / 8×15 mA sink) | Drives LEDs, piezo buzzers, and small solenoids directly - avoids discrete transistor stages and associated layout complexity. |
| Four low-power operating modes | Supports <10 µA stop-mode current - extends battery life in remote controls and portable meters beyond 2 years on CR2032. |
| 32.768 kHz sub-oscillator with RTC support | Enables accurate timekeeping and calendar functions without external RTC IC - critical for programmable timers in home appliances. |
Applications
| Remote Control Systems | Home Appliance UI Panels |
|---|---|
|
Use Scenario: IR remote control unit for air conditioners or set-top boxes with LCD status display and button matrix. IC Role / Device Role / Timing Role: Central MCU handling IR decoding, keypad scanning, LCD refresh, and buzzer feedback. Use Value: Integrated LCD driver and large-current I/O eliminate external drivers, while ZTAT™ PROM allows late-stage firmware updates before final assembly. |
Use Scenario: Control panel on microwave ovens or washing machines with segmented LCD, rotary encoder, and LED indicators. IC Role / Device Role / Timing Role: System controller managing user input, display update, motor timing, and safety interlock monitoring. Use Value: On-chip A/D converter reads potentiometer inputs; 32.768 kHz RTC enables cooking timers and clock display without external components. |
| Portable Medical Devices | Industrial Panel Meters |
|
Use Scenario: Battery-powered blood glucose meter with LCD readout, test strip detection, and audio feedback. IC Role / Device Role / Timing Role: Main processor executing measurement algorithm, driving LCD, and generating audible alerts via TOB/TOC PWM. Use Value: Ultra-low-power stop mode (<10 µA) extends CR2032 battery life to >18 months; integrated A/D ensures precise analog signal acquisition. |
Use Scenario: DIN-rail mounted digital panel meter displaying voltage/current with front-panel buttons and backlight control. IC Role / Device Role / Timing Role: Embedded controller interfacing with external ADC, updating 4-digit LCD, and managing non-volatile settings. Use Value: 46 I/O pins support multiple pushbuttons, LED indicators, and serial communication; wide 1.8–5.5 V range accommodates 3.3 V or 5 V industrial rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HD404889TE | Mask ROM (16,384 words), no on-chip PROM; identical pinout and peripheral set. | Requires pre-programmed ROM mask - unsuitable for design iterations or low-volume customization. | Select when firmware is finalized and high-volume cost sensitivity outweighs flexibility needs. |
| HD4074899TE | Same ZTAT™ PROM architecture but 6-channel 10-bit A/D converter instead of 8-bit. | Better suited for higher-precision analog sensing (e.g., thermistor linearization, battery fuel gauging). | Choose when 10-bit A/D resolution is required and LCD segment count remains compatible. |
Compared with HD404889TE, the HD4074889TE offers field-programmable firmware agility without sacrificing pin or peripheral compatibility; versus HD4074899TE, it trades A/D resolution for lower cost and identical 8-bit conversion latency in timing-critical UI tasks.
Availability
HD4074889TE is available at Aetrix Electronics and suitable for remote control systems, home appliance UI panels, and portable medical devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for HD4074889TE 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 specializing in microcontrollers, analog, and power solutions for automotive, industrial, and consumer markets.
The HD4074889TE belongs to the HD404889/HD404899 Series of low-voltage 4-bit microcomputers designed specifically for cost-sensitive, battery-powered LCD display control applications with integrated analog and timing peripherals.
FAQ
What is the memory configuration of the HD4074889TE?
The HD4074889TE integrates 16,384-word ZTAT™ PROM for program storage and 1,344-digit RAM. The PROM is electrically programmable like EPROM (27256-compatible), enabling fast firmware iteration without UV erasure. RAM is volatile and requires initialization after power-on reset, as register contents are unstable until explicitly written.
Does the HD4074889TE support real-time clock functionality?
Yes, the HD4074889TE includes a dedicated 32.768 kHz sub-oscillator circuit with X1/X2 pins for connecting a watch crystal. This enables accurate timekeeping, calendar functions, and wakeup-from-stop events - all managed by on-chip hardware without external RTC ICs or software overhead.
What LCD configurations does the HD4074889TE support?
The HD4074889TE supports up to 32 segments × 4 commons (128 segment electrodes), with built-in voltage divider (V0–V3) and COM/SEG drivers. It natively drives static or 1/4-duty multiplexed LCDs - commonly used in 4-digit numeric displays or custom alphanumeric panels in remote controls and appliances.
Can the HD4074889TE operate from a single 3 V coin cell?
Yes - the HD4074889TE operates across 1.8 V to 5.5 V, making it compatible with CR2032 (nominal 3 V) and even depleted cells down to ~2.0 V. Its four low-power modes, especially stop mode with 4 dedicated wakeup inputs, enable multi-year battery life in remote controls and portable instruments.
What are the key differences between HD4074889TE and HD4074899TE?
The HD4074889TE and HD4074899TE share identical ZTAT™ PROM size (16,384 words), package (TFP-80C), and peripheral set - except the HD4074899TE features a 6-channel 10-bit A/D converter versus the HD4074889TE's 6-channel 8-bit A/D. Both support the same LCD, timers, and I/O structure.
HD4074889TE 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:
HD4074889TE FAQ
1.How can I place an order for HD4074889TE through Aetrix?
Please submit a Request for Quotation (RFQ) for HD4074889TE 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 HD4074889TE reliable?
The price and inventory of HD4074889TE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HD4074889TE is usually 5 days.
3.What payment methods are accepted for HD4074889TE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HD4074889TE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HD4074889TE?
HD4074889TE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HD4074889TE 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 HD4074889TE?
For technical support, including HD4074889TE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HD4074889TE requirements.
6.How does Aetrix verify that HD4074889TE is sourced from the original manufacturer or authorized distributors?
All HD4074889TE 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 HD4074889TE meets industry standards.
7.What is the process for return or replacement of HD4074889TE?
All HD4074889TE units undergo pre-shipment inspection (PSI). If there is an issue with HD4074889TE, 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 HD4074889TE part is unused and in its original packaging.
Return procedure for HD4074889TE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HD4074889TE 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…
