My Inquiry
My Account
Renesas UPD789488GK-524-9EU-A
- Part No.:
- UPD789488GK-524-9EU-A
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
UPD789488GK-524-9EU-A.pdf
- Description:
- IC MCU
- Quantity:
- Payment:
- Shipping:
Inventory:2,370
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UPD789488GK-524-9EU-A from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K/0S family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and integrated LCD controller/driver with up to 28 segments × 4 commons. It operates at up to 20 MHz using an internal high-speed oscillator or external crystal, supports 10-bit ADC (8 channels), and targets embedded control in consumer and industrial HMI applications such as remote controls and small appliances.
For engineers reviewing the UPD789488GK-524-9EU-A datasheet, UPD789488GK-524-9EU-A pinout, UPD789488GK-524-9EU-A application, or UPD789488GK-524-9EU-A equivalent, key selection considerations include its 80-pin LQFP package, built-in LCD bias generation, low-power standby modes (1.5 µA typical), and compatibility with Renesas' RA78K0S toolchain for C and assembly development.
Technical Context
The UPD789488GK-524-9EU-A implements the 78K/0S CPU core with 16-bit addressing, supporting 131 instructions and a 3-stage pipeline. It integrates dual 8-bit timers (Timer 50/60/61), serial interface (UART/SIO), and a programmable LCD controller capable of static to 1/4-duty drive with internal voltage boosting.
Its analog subsystem includes an 8-channel, 10-bit successive-approximation ADC with sample-and-hold and selectable reference sources (AVDD or internal 2.5 V). Power management features include HALT, STOP, and sub-idle modes, with wake-up via external interrupt, timer, or ADC completion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K/0S 8-bit RISC core with 3-stage pipeline and 131 instructions - enables deterministic real-time control with minimal code footprint. |
| Memory | 64 KB on-chip Flash (reprogrammable), 4 KB RAM - sufficient for standalone firmware with LCD graphics and sensor processing without external memory. |
| Operating Frequency | Up to 20 MHz (internal high-speed oscillator) or 1–10 MHz (external crystal) - balances performance and EMI in compact HMI designs. |
| LCD Controller | Supports up to 28 segments × 4 commons with internal bias generation and voltage boost - eliminates external LCD bias IC and reduces BOM count. |
| ADC | 10-bit SAR ADC, 8 input channels, selectable reference (AVDD or 2.5 V internal) - enables accurate battery monitoring and analog sensor interfacing. |
| Power Consumption | 1.5 µA typical in STOP mode, 3.5 mA at 20 MHz/5 V - extends battery life in portable remote controls and handheld devices. |
| Package | 80-pin LQFP (12 mm × 12 mm, 0.5 mm pitch) - standard surface-mount footprint compatible with automated PCB assembly. |
Pinout & Package
UPD789488GK-524-9EU-A is housed in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Renesas User's Manual U15331EJ4V1UD, including dedicated LCD segment/common drivers (S0–S27, COM0–COM3), analog inputs (AN0–AN7), and dual serial interfaces.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 I/O (with pull-up) | General-purpose bidirectional I/O; default function includes UART TXD/RXD when configured. |
| S0–S27 | LCD Segment Outputs | Drive up to 28 LCD segments directly; support multiplexed static to 1/4-duty drive. |
| COM0–COM3 | LCD Common Outputs | Provide common electrode signals for 4-backplane LCD configurations. |
| AN0–AN7 | Analog Input Channels | Connect to external sensors or voltage dividers; routed to 10-bit ADC with internal sample-and-hold. |
| X1/X2 | Crystal Oscillator Inputs | Support external 1–10 MHz crystal for precise timing; X1 accepts CMOS clock input as alternative. |
| RESET | Active-low Reset Input | Asynchronous reset assertion clears registers and forces CPU restart; internal pull-up enabled by default. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD Controller/Driver | Eliminates need for external LCD bias IC and segment drivers; supports static to 1/4-duty drive with internal voltage boost circuitry. |
| Low-Power STOP Mode | 1.5 µA typical current draw with RTC and RAM retention - enables multi-year battery operation in IR remotes and smart thermostats. |
| On-Chip Voltage Booster | Generates LCD bias voltages (VLCD) internally from VDD; configurable for 2.5 V, 3.0 V, or 3.5 V output - simplifies power design. |
| Dual Serial Interfaces | One UART + one SIO (SPI/I²C-compatible) - allows simultaneous communication with host MCU and peripheral sensors or EEPROMs. |
| Hardware Watchdog Timer | Dedicated independent watchdog with selectable timeout (32 ms to 2 s) - ensures system recovery from software lockup without external components. |
Applications
| IR Remote Control Unit | Smart Thermostat Display |
|---|---|
|
Use Scenario: Battery-powered infrared remote with segmented LCD showing channel, volume, and mode indicators. IC Role / Device Role / Timing Role: Main system controller executing IR decode, button scan, LCD update, and low-power state management. Use Value: Integrated LCD driver and STOP-mode current (1.5 µA) enable >2-year CR2032 battery life while maintaining display visibility. |
Use Scenario: Wall-mounted HVAC controller with 4-digit temperature readout and status icons on custom LCD. IC Role / Device Role / Timing Role: Primary HMI processor handling sensor reading (NTC via ADC), user input, and multiplexed LCD refresh. Use Value: On-chip voltage booster and 28×4 LCD support eliminate external bias IC, reducing component count and board area by 30%. |
| Portable Medical Monitor | Industrial Panel Meter |
|
Use Scenario: Handheld pulse oximeter displaying SpO₂, PR, and battery level on monochrome LCD. IC Role / Device Role / Timing Role: Real-time data acquisition (ADC for photodiode signals), digital signal processing, and LCD rendering engine. Use Value: 10-bit ADC with internal 2.5 V reference provides stable measurement accuracy across temperature and supply variations. |
Use Scenario: DIN-rail mounted meter showing voltage/current readings and alarm status on segmented LCD. IC Role / Device Role / Timing Role: Embedded controller managing analog input scaling, calibration storage (Flash), and LCD refresh timing. Use Value: 64 KB Flash supports field-upgradable firmware and multiple calibration tables; HALT mode enables fast wake-up from button press. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UPD78F9488GC-5EU-A | Same 78K/0S core and pinout; replaces mask ROM with Flash memory and adds USB interface - larger die, higher cost. | Required when firmware updates in field are needed or USB connectivity is mandatory. | Select UPD78F9488GC-5EU-A only if USB host/device capability or field reprogramming is required; otherwise UPD789488GK-524-9EU-A offers lower cost and identical LCD/ADC functionality. |
| R5F100PLAFB#30 | RL78/G13-based; 32 KB Flash, 4 KB RAM, same 80-pin LQFP but different pin mapping - no native LCD driver, requires external bias. | Suitable for cost-sensitive designs where LCD is replaced by LED or character LCD with external controller. | Choose R5F100PLAFB#30 for migration paths to RL78 ecosystem and lower active power; avoid if existing LCD panel relies on integrated bias generation. |
Compared with UPD789488GK-524-9EU-A, UPD78F9488GC-5EU-A adds USB but increases BOM cost and complexity, while R5F100PLAFB#30 reduces active power but removes integrated LCD support - making UPD789488GK-524-9EU-A optimal for fixed-function, LCD-centric, battery-operated HMI.
Availability
UPD789488GK-524-9EU-A is available at Aetrix Electronics and suitable for IR remote controls, smart thermostat displays, and portable medical monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for UPD789488GK-524-9EU-A 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 solutions for industrial, automotive, and consumer markets.
The UPD789488GK-524-9EU-A belongs to the 78K/0S microcontroller family, designed specifically for cost-sensitive, low-power human-machine interface applications with integrated LCD driving and sensor interfacing capabilities.
FAQ
What is the maximum operating frequency of the UPD789488GK-524-9EU-A?
The UPD789488GK-524-9EU-A supports a maximum CPU operating frequency of 20 MHz using its internal high-speed oscillator. When driven by an external crystal, the rated range is 1–10 MHz. The device's instruction execution time is 0.05 µs per cycle at 20 MHz, enabling responsive real-time control in HMI applications.
Does the UPD789488GK-524-9EU-A include on-chip Flash memory, and what is its size?
Yes, the UPD789488GK-524-9EU-A integrates 64 KB of on-chip Flash memory for program storage, supporting in-system programming and up to 10,000 write/erase cycles. This capacity accommodates full firmware stacks including LCD rendering, IR protocol decoding, and sensor calibration routines without external memory.
Can the UPD789488GK-524-9EU-A drive a 4-common, 28-segment LCD without external components?
Yes, the UPD789488GK-524-9EU-A includes a fully integrated LCD controller/driver supporting up to 28 segments × 4 commons with internal voltage boosting. It generates all required bias voltages (VLCD) and timing signals, eliminating the need for external LCD bias ICs or segment drivers in compliant designs.
What power-saving modes does the UPD789488GK-524-9EU-A support, and what is the lowest current draw?
The UPD789488GK-524-9EU-A supports HALT, STOP, and sub-idle modes. In STOP mode with RAM retention and watchdog active, typical current consumption is 1.5 µA at 5 V and 25°C. This ultra-low standby current enables multi-year battery life in remote controls and portable instruments.
Is the UPD789488GK-524-9EU-A RoHS-compliant and lead-free?
Yes, the UPD789488GK-524-9EU-A is a lead-free, RoHS-compliant device manufactured under Renesas' green policy. Its 80-pin LQFP package uses matte tin plating, and the part meets JEDEC J-STD-020 moisture sensitivity level 3 requirements for standard reflow soldering processes.
UPD789488GK-524-9EU-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
UPD789488GK-524-9EU-A FAQ
1.How can I place an order for UPD789488GK-524-9EU-A through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD789488GK-524-9EU-A 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 UPD789488GK-524-9EU-A reliable?
The price and inventory of UPD789488GK-524-9EU-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD789488GK-524-9EU-A is usually 5 days.
3.What payment methods are accepted for UPD789488GK-524-9EU-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD789488GK-524-9EU-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD789488GK-524-9EU-A?
UPD789488GK-524-9EU-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD789488GK-524-9EU-A 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 UPD789488GK-524-9EU-A?
For technical support, including UPD789488GK-524-9EU-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD789488GK-524-9EU-A requirements.
6.How does Aetrix verify that UPD789488GK-524-9EU-A is sourced from the original manufacturer or authorized distributors?
All UPD789488GK-524-9EU-A 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 UPD789488GK-524-9EU-A meets industry standards.
7.What is the process for return or replacement of UPD789488GK-524-9EU-A?
All UPD789488GK-524-9EU-A units undergo pre-shipment inspection (PSI). If there is an issue with UPD789488GK-524-9EU-A, 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 UPD789488GK-524-9EU-A part is unused and in its original packaging.
Return procedure for UPD789488GK-524-9EU-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UPD789488GK-524-9EU-A 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…
