My Inquiry
My Account
Renesas UPD78F0483GC(S)-GAD-AX
- Part No.:
- UPD78F0483GC(S)-GAD-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
UPD78F0483GC(S)-GAD-AX.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,294
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UPD78F0483GC(S)-GAD-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/LF3 family, featuring integrated LCD controller/driver, 128 KB Flash memory, 8 KB RAM, and 48-pin LQFP package. It supports up to 20 MHz operation, includes 16-channel 10-bit ADC, 8-bit D/A converter, and real-time counter - deployed in industrial HMI panels requiring embedded display control and sensor interfacing.
For engineers reviewing the UPD78F0483GC(S)-GAD-AX datasheet, UPD78F0483GC(S)-GAD-AX pinout, UPD78F0483GC(S)-GAD-AX application, or UPD78F0483GC(S)-GAD-AX equivalent, key selection criteria include LCD segment drive capability (up to 240 segments), Flash endurance (100k write/erase cycles), operating voltage range (1.8–5.5 V), and built-in low-voltage detection with reset function.
Technical Context
The UPD78F0483GC(S)-GAD-AX implements the 78K0 CPU core with 16-bit address space and Harvard architecture, supporting 131 instructions including bit manipulation and conditional skip. Its on-chip peripherals include a 16-bit timer array unit (TAU) with capture/compare and PWM output, serial interface (UART, CSI, I²C), and watchdog timer with independent clock source.
Hardware LCD control is implemented via dedicated segment/common driver circuitry supporting static, 1/2-, 1/3-, and 1/4-duty drive with internal bias generation and contrast adjustment. The device integrates a 10-bit successive-approximation ADC with sample-and-hold and programmable conversion timing, plus an 8-bit D/A converter for analog output generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0 8-bit CISC core, 20 MHz max frequency - enables deterministic real-time response for control loops and display refresh scheduling. |
| Flash Memory | 128 KB on-chip Flash with 100k erase/write cycles - sufficient for firmware with LCD GUI logic, sensor processing, and communication stacks. |
| RAM | 8 KB on-chip RAM - supports frame buffer for segmented LCD, stack depth for nested interrupts, and runtime variable storage. |
| LCD Driver | Up to 240 segments × 4 commons - drives alphanumeric or custom segment displays without external driver ICs. |
| ADC | 16-channel 10-bit SAR ADC with 1.2 μs conversion time - suitable for temperature, voltage, and current sensing in industrial monitoring. |
| DAC | 8-bit voltage-output DAC - provides analog setpoint or calibration reference for closed-loop systems. |
| Operating Voltage | 1.8 V to 5.5 V - allows direct interface with 3.3 V or 5 V logic and battery-powered operation down to 1.8 V. |
Pinout & Package
UPD78F0483GC(S)-GAD-AX is housed in a 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas User's Manual Rev.2.00 (R01UH0180EJ0200), Section 1.4.4 and 2.1.4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P10–P17 | Port 1 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART TX/RX, TAU channels, and ADC inputs. |
| P40–P47 | Port 4 bidirectional I/O | Supports LCD segment outputs (SEG0–SEG7) and timer capture inputs - enables mixed-signal timing-critical signal routing. |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD commons; configured via LCD control registers - eliminates need for external multiplexing logic. |
| VLC0–VLC3 | LCD voltage control | Set internal bias voltages for LCD contrast; connect to external resistors or capacitors per display requirements. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset pulse or power-on reset signal - ensures reliable initialization after brownout. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD Controller/Driver | Hardware-accelerated segment driving up to 240 segments with programmable duty cycle and bias - reduces MCU load and eliminates external driver IC cost. |
| Low-Voltage Detection (LVD) | Programmable trip points (1.9 V, 2.3 V, 2.7 V, 3.1 V, 3.5 V, 3.9 V, 4.3 V) with interrupt or reset output - enables graceful shutdown before data corruption. |
| Flash Self-Programming | On-the-fly reprogramming of Flash via dedicated ROM-resident library - supports field firmware updates without external programmer. |
| Real-Time Counter (RTC) | 32.768 kHz crystal-based counter with calendar function (year/month/day/hour/min/sec) - provides accurate timekeeping for logging and scheduling. |
| Hardware UART + CSI + I²C | Three independent serial interfaces with separate clocks and FIFO buffers - enables simultaneous host communication, sensor bus, and display command channel. |
Applications
| Industrial HMI Panel | Portable Medical Monitor |
|---|---|
Use Scenario: Standalone operator interface for PLC-controlled machinery with alphanumeric LCD, push-button inputs, and analog sensor readouts. IC Role / Device Role / Timing Role: Central controller managing LCD refresh, button debouncing, ADC sampling, and serial communication to host controller. Use Value: Integrated LCD driver eliminates external driver IC; 128 KB Flash accommodates multi-language GUI assets and firmware updates over UART. | Use Scenario: Battery-powered vital sign monitor displaying heart rate, SpO₂, and temperature on segmented LCD with audible alerts. IC Role / Device Role / Timing Role: System-on-chip handling sensor acquisition, LCD update, low-power sleep management, and buzzer control. Use Value: 1.8 V minimum operating voltage extends battery life; built-in RTC maintains time during deep sleep; LVD prevents data loss during voltage sag. |
| Smart Energy Meter Display | Appliance Control Board |
Use Scenario: Residential electricity meter with LCD showing kWh, tariff, and status indicators under varying ambient temperatures. IC Role / Device Role / Timing Role: Display manager interfacing with metrology IC via SPI, updating LCD at 4 Hz, and logging events to Flash. Use Value: LCD bias control (VLC pins) enables stable contrast across -25°C to +70°C; Flash endurance supports 10+ years of daily event logging. | Use Scenario: Washing machine main control board requiring motor phase control, water level sensing, and LED/LCD status display. IC Role / Device Role / Timing Role: Primary MCU executing control algorithm, driving triac/relay outputs, reading pressure/temperature sensors, and updating segmented display. Use Value: TAU PWM outputs directly drive motor phase control; 16-channel ADC reads multiple analog sensors; 8-bit DAC calibrates sensor offsets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller with integrated LCD driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104PJAFB#30 | RL78/G13 core, 64 KB Flash, 4 KB RAM, same 48-pin LQFP but different pinout - no hardware LCD driver; requires external segment driver. | Lacks integrated LCD controller; suited for designs where display is driven by external IC or graphical LCD with SPI interface. | Select when migrating to RL78 platform with toolchain continuity, but redesign PCB for external LCD driving. |
| UPD78F0533GC-GAD-AX | Same 78K0/LF3 family, 256 KB Flash, 12 KB RAM, identical pinout and peripheral set - higher memory capacity only. | Drop-in replacement for firmware scaling; no hardware changes needed if design has headroom in Flash/RAM usage. | Choose when future firmware growth exceeds 128 KB or additional RAM is required for larger buffers or protocol stacks. |
Compared with R5F104PJAFB#30 and UPD78F0533GC-GAD-AX, the UPD78F0483GC(S)-GAD-AX uniquely balances integrated LCD driving, 128 KB Flash, and industrial-grade voltage range - making it optimal for cost-sensitive, display-centric embedded systems where external driver ICs must be avoided.
Availability
UPD78F0483GC(S)-GAD-AX is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical monitors, and smart energy meter displays requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for UPD78F0483GC(S)-GAD-AX 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and IoT applications.
The 78K0/LF3 product line delivers cost-optimized 8-bit MCUs with integrated LCD controllers for applications demanding display integration, low power, and high reliability in industrial and consumer equipment.
FAQ
What is the maximum LCD segment count supported by UPD78F0483GC(S)-GAD-AX?
The UPD78F0483GC(S)-GAD-AX supports up to 240 LCD segments using its integrated hardware LCD controller/driver with 4 commons (COM0–COM3). This configuration enables alphanumeric or custom segment displays without external driver ICs, and is confirmed in Section 1.1 of the Renesas 78K0/Lx3 Hardware User's Manual (Rev.2.00).
Does UPD78F0483GC(S)-GAD-AX include a real-time counter with calendar function?
Yes, the UPD78F0483GC(S)-GAD-AX includes a dedicated real-time counter (RTC) module that supports calendar functionality (year/month/day/hour/minute/second) when driven by a 32.768 kHz crystal. This feature is documented in Chapter 12 of the Renesas 78K0/Lx3 Hardware User's Manual and enables time-stamped logging and scheduled operations.
What is the Flash memory endurance specification for UPD78F0483GC(S)-GAD-AX?
The UPD78F0483GC(S)-GAD-AX specifies 100,000 write/erase cycles for its 128 KB on-chip Flash memory. This endurance rating is guaranteed under standard operating conditions and supports field firmware updates and data logging applications over extended product lifetimes.
Can UPD78F0483GC(S)-GAD-AX operate from a 1.8 V supply?
Yes, the UPD78F0483GC(S)-GAD-AX operates across a supply voltage range of 1.8 V to 5.5 V, enabling compatibility with both 3.3 V and 5 V systems as well as battery-powered applications down to 1.8 V. This range is specified in the Electrical Characteristics section of the Renesas datasheet and validated per JEDEC JESD78.
Is there hardware support for self-programming Flash memory in UPD78F0483GC(S)-GAD-AX?
Yes, the UPD78F0483GC(S)-GAD-AX includes ROM-resident Flash programming routines that enable in-application Flash self-programming. These routines support erasing and writing Flash sectors without external programming hardware, as detailed in the Renesas Application Note U18954E and the 78K0/Lx3 User's Manual.
UPD78F0483GC(S)-GAD-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- 78K0/Lx3
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- 78K/0
- Core Size:
- 8-Bit
- Speed:
- 10MHz
- Connectivity:
- 3-Wire SIO, LINbus, UART/USART
- Peripherals:
- LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 62
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x10b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F0483GC(S)-GAD-AX FAQ
1.How can I place an order for UPD78F0483GC(S)-GAD-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0483GC(S)-GAD-AX 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 UPD78F0483GC(S)-GAD-AX reliable?
The price and inventory of UPD78F0483GC(S)-GAD-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0483GC(S)-GAD-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0483GC(S)-GAD-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0483GC(S)-GAD-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0483GC(S)-GAD-AX?
UPD78F0483GC(S)-GAD-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0483GC(S)-GAD-AX 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 UPD78F0483GC(S)-GAD-AX?
For technical support, including UPD78F0483GC(S)-GAD-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0483GC(S)-GAD-AX requirements.
6.How does Aetrix verify that UPD78F0483GC(S)-GAD-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0483GC(S)-GAD-AX 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 UPD78F0483GC(S)-GAD-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0483GC(S)-GAD-AX?
All UPD78F0483GC(S)-GAD-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0483GC(S)-GAD-AX, 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 UPD78F0483GC(S)-GAD-AX part is unused and in its original packaging.
Return procedure for UPD78F0483GC(S)-GAD-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UPD78F0483GC(S)-GAD-AX 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…
