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Renesas UPD78F0472GK(S)-GAK-AX
- Part No.:
- UPD78F0472GK(S)-GAK-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
UPD78F0472GK(S)-GAK-AX.pdf
- Description:
- IC MCU 8BIT 24KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,195
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Product details
Overview
UPD78F0472GK(S)-GAK-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/LF3 family, featuring integrated LCD controller/driver, 64 KB on-chip Flash memory, 4 KB RAM, and 29 I/O pins. It operates at up to 20 MHz with supply voltage range of 2.7 V to 5.5 V and supports industrial temperature range (−40°C to +85°C), targeting embedded control in portable instrumentation and consumer HMI panels.
For engineers reviewing the UPD78F0472GK(S)-GAK-AX datasheet, UPD78F0472GK(S)-GAK-AX pinout, UPD78F0472GK(S)-GAK-AX application, or UPD78F0472GK(S)-GAK-AX equivalent, key selection criteria include LCD segment drive capability (up to 160 segments), Flash endurance (100,000 write/erase cycles), real-time counter with low-voltage operation, and built-in 10-bit A/D converter with 12 input channels.
Technical Context
The UPD78F0472GK(S)-GAK-AX implements the 78K0 CPU core with 16-bit address space, supporting 131 instructions and 8 addressing modes. Its on-chip peripherals include a 16-bit timer array unit (TAU) with three channels, a watchdog timer (WDT), and serial interface (UART/SIO) with clock synchronous capability.
It integrates an LCD controller/driver supporting static, 1/2-, 1/3-, and 1/4-duty drive with bias voltage generation (VLCD), programmable frame frequency, and internal charge pump. The device uses SuperFlash® technology for Flash memory, enabling single-power-supply reprogramming and data retention of 20 years at 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0 8-bit CISC core, 20 MHz max operation - enables deterministic real-time response in cost-sensitive control loops. |
| Flash Memory | 64 KB on-chip Flash with SuperFlash® - supports field firmware updates without external programmer; 100k erase/write cycles. |
| RAM | 4 KB on-chip RAM - sufficient for stack, variables, and LCD buffer in mid-complexity HMI applications. |
| LCD Drive | Up to 160 segments × 4 commons - drives alphanumeric and custom symbols in portable meters and appliance displays. |
| A/D Converter | 10-bit SAR ADC, 12 input channels - provides sufficient resolution for sensor monitoring (e.g., temperature, battery voltage). |
| Supply Voltage | 2.7 V to 5.5 V - compatible with single-cell Li-ion, 3.3 V logic, and legacy 5 V systems without level-shifting. |
| Operating Temp | −40°C to +85°C - qualified for industrial and automotive cabin environments per Renesas Standard grade. |
Pinout & Package
UPD78F0472GK(S)-GAK-AX is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) 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 |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD supplies core/peripherals; VSS is common reference - requires local decoupling near pins. |
| P10–P17 | Port 1 bidirectional I/O | Configurable as general-purpose I/O or alternate functions (e.g., UART TX/RX, TAU inputs) - supports pull-up/pull-down control. |
| P40–P47 | Port 4 with LCD segment outputs | Drive LCD segments directly (SEG0–SEG7); share pins with general I/O - multiplexed function managed via LCD control register. |
| COM0–COM3 | LCD common outputs | Generate LCD backplane signals (1/4-duty); driven by internal LCD controller - no external drivers needed. |
| RESET | Active-low reset input | Asynchronous reset assertion halts CPU and initializes registers - must be held low ≥100 μs after VDD stabilization. |
| FLMD0 | Flash mode select | Defines boot mode at power-on: high = normal operation; low = Flash programming mode - tied high via resistor in production. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD controller/driver | Eliminates external LCD driver IC and bias circuitry - reduces BOM count and PCB area in display-centric designs. |
| Real-time counter (RTC) | Operates down to 1.8 V with dedicated 32.768 kHz crystal input - maintains timekeeping during main system sleep or brownout. |
| On-chip debug interface | Supports in-circuit debugging via QB-MINI2 emulator - enables full visibility into registers, memory, and peripheral states without target code modification. |
| Low-power modes | HALT, STOP, and SNOOZE modes with wake-up on interrupt or RTC alarm - extends battery life in portable devices. |
| Flash self-programming | Allows firmware updates from application code using RA78K0 library - enables over-the-air (OTA) patching in deployed units. |
Applications
| Portable Medical Instrumentation | Industrial Panel Meters |
|---|---|
Use Scenario: Handheld blood glucose meter with segmented LCD display and button interface. IC Role / Device Role / Timing Role: Main system controller managing sensor interface, LCD refresh, button scan, and battery monitoring. Use Value: Integrated LCD driver eliminates external driver IC; 10-bit ADC directly digitizes analog sensor output; RTC maintains timestamped readings. | Use Scenario: DIN-rail mounted voltage/current meter with 4-digit LCD readout and RS-485 communication. IC Role / Device Role / Timing Role: Primary MCU handling analog acquisition, LCD rendering, serial protocol stack, and watchdog supervision. Use Value: 64 KB Flash stores dual firmware images; 29 GPIO support isolated I/O expansion; wide VDD range accommodates unregulated 24 VDC input via LDO. |
| Home Appliance Control Panels | Smart Energy Meters |
Use Scenario: Microwave oven control panel with 16-segment display, touch keys, and buzzer feedback. IC Role / Device Role / Timing Role: HMI controller coordinating display update, key debounce, audio tone generation, and safety interlock monitoring. Use Value: LCD controller supports static and 1/2-duty drive for both numeric and icon segments; low-power STOP mode reduces standby current to <1 μA. | Use Scenario: Single-phase electricity meter with LCD display, tamper detection, and pulse output interface. IC Role / Device Role / Timing Role: Metering controller interfacing with metrology IC (e.g., RL78/I1C), driving LCD, and logging events with timestamp. Use Value: RTC with calendar function enables tariff-based billing; Flash endurance ensures 10+ years of secure firmware updates; EEPROM emulation library replaces external nonvolatile storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller with LCD driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104LEAFB#30 | RL78/G13-based; 32 KB Flash, 4 KB RAM, same 64-pin LQFP but different pinout and peripheral mapping. | Lacks integrated LCD driver; requires external segment driver or migration to segment-based display architecture. | Select when migrating to Renesas' newer RL78 platform with enhanced low-power performance and toolchain continuity. |
| UPD78F0533GC-GAD-AX | 78K0/LF3 family member; 128 KB Flash, 6 KB RAM, identical LCD controller and pin-compatible package variant. | Higher memory capacity supports larger UI firmware and data logging buffers; same LCD timing and segment drive specs. | Choose for applications requiring extended Flash/RAM headroom while retaining identical hardware layout and software compatibility. |
Compared with UPD78F0472GK(S)-GAK-AX, R5F104LEAFB#30 offers lower active current but requires redesign of LCD interface and toolchain migration, whereas UPD78F0533GC-GAD-AX delivers drop-in memory scalability with zero hardware changes.
Availability
UPD78F0472GK(S)-GAK-AX is available at Aetrix Electronics and suitable for portable medical instrumentation, industrial panel meters, and home appliance control panels requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for UPD78F0472GK(S)-GAK-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 global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.
The 78K0/LF3 product line targets cost-optimized, display-integrated embedded control - designed specifically for applications where LCD-driven user interfaces coexist with sensor acquisition and real-time event handling.
FAQ
What is the maximum LCD segment count supported by the UPD78F0472GK(S)-GAK-AX?
The UPD78F0472GK(S)-GAK-AX supports up to 160 LCD segments with 4 commons (1/4-duty drive). This is achieved using dedicated SEG0–SEG31 and COM0–COM3 pins, configurable via the LCD control registers. Segment drive capability is confirmed in Section 1.1 and Figure 1.12 of the R01UH0180EJ0200 User's Manual.
Does the UPD78F0472GK(S)-GAK-AX include a hardware real-time counter (RTC)?
Yes, the UPD78F0472GK(S)-GAK-AX includes a dedicated real-time counter (RTC) module that operates independently using a 32.768 kHz crystal. It supports calendar functions (year/month/day/hour/minute/second) and continues running in STOP mode down to 1.8 V, as documented in Section 4.11 of the R01UH0180EJ0200 manual.
What development tools are officially supported for the UPD78F0472GK(S)-GAK-AX?
Renesas officially supports the QB-MINI2 on-chip debug emulator and RA78K0 assembler for the UPD78F0472GK(S)-GAK-AX. The QB-78K0LX3 in-circuit emulator and CC78K0 C compiler are also validated. Tool compatibility is specified in Section "Documents Related to Development Tools" of the R01UH0180EJ0200 manual.
Is the UPD78F0472GK(S)-GAK-AX qualified for automotive applications?
No, the UPD78F0472GK(S)-GAK-AX is rated as Renesas "Standard" quality grade, intended for industrial and consumer applications such as office equipment and home appliances. It is not qualified for automotive use per Renesas quality grading definitions in Section 7 of the R01UH0180EJ0200 manual.
What is the Flash memory endurance specification for the UPD78F0472GK(S)-GAK-AX?
The UPD78F0472GK(S)-GAK-AX Flash memory is rated for 100,000 write/erase cycles with 20-year data retention at 85°C, enabled by SuperFlash® technology. This specification is stated in Section 1.1 (Features) and confirmed in the electrical characteristics table of the R01UH0180EJ0200 manual.
UPD78F0472GK(S)-GAK-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:
- 24KB (24K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F0472GK(S)-GAK-AX FAQ
1.How can I place an order for UPD78F0472GK(S)-GAK-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0472GK(S)-GAK-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 UPD78F0472GK(S)-GAK-AX reliable?
The price and inventory of UPD78F0472GK(S)-GAK-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0472GK(S)-GAK-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0472GK(S)-GAK-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0472GK(S)-GAK-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0472GK(S)-GAK-AX?
UPD78F0472GK(S)-GAK-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0472GK(S)-GAK-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 UPD78F0472GK(S)-GAK-AX?
For technical support, including UPD78F0472GK(S)-GAK-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0472GK(S)-GAK-AX requirements.
6.How does Aetrix verify that UPD78F0472GK(S)-GAK-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0472GK(S)-GAK-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 UPD78F0472GK(S)-GAK-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0472GK(S)-GAK-AX?
All UPD78F0472GK(S)-GAK-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0472GK(S)-GAK-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 UPD78F0472GK(S)-GAK-AX part is unused and in its original packaging.
Return procedure for UPD78F0472GK(S)-GAK-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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