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Renesas UPD78F0452GK(S)-GAJ-M1-AX
- Part No.:
- UPD78F0452GK(S)-GAJ-M1-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
UPD78F0452GK(S)-GAJ-M1-AX.pdf
- Description:
- IC MCU 8BIT 24KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,859
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Product details
Overview
UPD78F0452GK(S)-GAJ-M1-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/LE3 family, featuring integrated LCD controller/driver, 64 KB on-chip Flash memory, 4 KB RAM, and 29 I/O pins in a 64-pin LQFP package. It operates at up to 20 MHz, supports 10-bit ADC with 12 channels, and targets low-power embedded applications requiring segment-based display control.
For engineers reviewing the UPD78F0452GK(S)-GAJ-M1-AX datasheet, UPD78F0452GK(S)-GAJ-M1-AX pinout, UPD78F0452GK(S)-GAJ-M1-AX application, or UPD78F0452GK(S)-GAJ-M1-AX equivalent, key selection criteria include LCD segment drive capability (up to 288 segments), Flash endurance (10,000 write/erase cycles), operating voltage range (1.8–5.5 V), and support for on-chip debug via QB-MINI2 emulator.
Technical Context
The UPD78F0452GK(S)-GAJ-M1-AX implements the 78K0 CPU core with 16-bit address space, Harvard architecture, and instruction set compatible with earlier 78K0 devices. It integrates a 10-bit successive-approximation ADC with sample-and-hold, programmable gain amplifier input option, and conversion time of 1.2 μs per channel.
Its LCD controller supports static, 2-, 3-, and 4-multiplex modes with internal bias generation, programmable duty cycle, and built-in charge pump for VLCD regulation. The device includes three 16-bit timer/counters (T0–T2), one watchdog timer, and serial interfaces including CSI (synchronous serial I/O) and UART with LIN support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0 8-bit CISC core, 20 MHz max clock, 16-bit address bus |
| Memory | 64 KB on-chip Flash (10k erase/write cycles), 4 KB RAM, 1 KB data flash |
| LCD Controller | Supports up to 288 segments (4-mux), internal bias generator, VLCD charge pump |
| ADC | 10-bit SAR ADC, 12 input channels, 1.2 μs conversion time, ±1 LSB INL |
| I/O Pins | 29 CMOS bidirectional I/O pins with pull-up/pull-down control and noise filter |
| Supply Voltage | 1.8 V to 5.5 V operation; supports low-voltage detection (LVD) at 2.7 V/3.7 V thresholds |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, lead-free |
Pinout & Package
UPD78F0452GK(S)-GAJ-M1-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 2.1.3 (78K0/LE3 Pin Function List) and Section 1.4.3 (Pin Configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD (core/I/O), VSS (common ground); decoupling required per datasheet layout guidelines |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; external RC or supervisor IC recommended for reliable power-on reset |
| P10–P17 | Port 1 bidirectional I/O | 8-bit port with individually configurable direction, pull-up, and noise filter; P10–P13 also serve as LCD segment outputs (SEG0–SEG3) |
| P30–P34 | Port 3 bidirectional I/O | 5-bit port; P30–P33 double as LCD common outputs (COM0–COM3); P34 is ADC input AN0 |
| COM0–COM7 | LCD common terminals | Direct connection to LCD backplane electrodes; COM0–COM3 mapped to P30–P33; COM4–COM7 mapped to P100–P103 |
| SEG0–SEG31 | LCD segment outputs | Segment drivers mapped across P10–P17, P20–P27, P40–P47, and P80–P83; total 288 segments supported in 4-mux mode |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD controller/driver | Eliminates external segment drivers and bias circuitry; reduces BOM count and PCB area for display-integrated designs |
| On-chip data flash (1 KB) | Enables nonvolatile storage of calibration data, configuration parameters, or firmware update flags without external EEPROM |
| Low-voltage detection (LVD) | Two threshold options (2.7 V / 3.7 V) allow safe brown-out handling and graceful shutdown before system instability |
| CSI synchronous serial interface | Configurable master/slave mode with programmable bit rate; supports daisy-chain sensor networks or peripheral expansion |
| Real-time counter (RTC) support | Optional external 32.768 kHz crystal input enables calendar/timekeeping with low-power standby current (0.7 μA typical) |
Applications
| Medical Thermometers | Industrial Panel Meters |
|---|---|
Use Scenario: Portable, battery-powered digital thermometer with segmented LCD display showing temperature readings and unit indicators. IC Role / Device Role / Timing Role: Main system controller executing measurement algorithm, driving 4-digit LCD (128 segments), managing thermistor ADC sampling, and controlling sleep/wake cycles. Use Value: Integrated LCD driver eliminates 4–6 external components; 1.8 V minimum supply enables use with single alkaline cell; data flash stores factory calibration offsets. | Use Scenario: DIN-rail mounted analog input meter displaying voltage/current values on 3½-digit LCD with status LEDs and relay control. IC Role / Device Role / Timing Role: Central MCU handling 12-channel ADC acquisition, scaling, LCD refresh, relay logic, and serial communication (UART/LIN) to SCADA systems. Use Value: 29 GPIOs support direct LED/relay drive; 4-mux LCD controller drives full 3½-digit display + symbols; 5.5 V tolerance accommodates industrial 5 V rails. |
| Home Appliance Control Panels | Smart Energy Meters |
Use Scenario: Microwave oven or washing machine control panel with segmented LCD showing time, mode, and cycle progress. IC Role / Device Role / Timing Role: Primary UI controller managing keypad scan, buzzer tone generation, PWM fan control, and multiplexed LCD refresh at 60 Hz. Use Value: Hardware LCD timing generator relieves CPU load; built-in noise filters on all I/O suppress EMI from motor drivers; 64 KB Flash supports feature-rich UI firmware. | Use Scenario: Single-phase kWh meter with LCD display, tamper detection, and optical/IR communication interface. IC Role / Device Role / Timing Role: Metering MCU performing metrology calculations (via software-based RMS/energy integration), LCD segment control, and secure IR protocol stack execution. Use Value: 10-bit ADC with PGA input supports shunt-based current sensing; data flash stores metering constants and tariff tables; LVD ensures accurate energy logging during brownouts. |
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 |
|---|---|---|---|
| RL78/L12 (R5F10PLGJSP) | 16-bit RL78 core, 32 KB Flash, 4 KB RAM, same 64-pin LQFP, enhanced LCD segment capacity (up to 480 seg) | Higher code efficiency and lower active current (125 μA/MHz); supports capacitive touch sensing | Select for new designs requiring longer lifecycle, lower power, or future scalability beyond 8-bit performance limits |
| UPD78F0442GK(S)-GAJ-M1-AX | Same 78K0/LE3 family, 48 KB Flash, 3 KB RAM, identical pinout and peripheral set except reduced Flash/RAM | Lower cost for applications not requiring >48 KB code space or 4 KB RAM buffer | Drop-in replacement where firmware size fits within 48 KB and no runtime data buffering beyond 3 KB is needed |
Compared with UPD78F0452GK(S)-GAJ-M1-AX, the RL78/L12 offers higher processing efficiency and extended LCD capability but requires toolchain migration, while the UPD78F0442 provides identical hardware compatibility at reduced memory cost for less complex firmware.
Availability
UPD78F0452GK(S)-GAJ-M1-AX is available at Aetrix Electronics and suitable for medical thermometers, industrial panel meters, home appliance control panels, and smart energy meters requiring stable component supply and long-term production continuity.
Supply support for UPD78F0452GK(S)-GAJ-M1-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, power, and SoC solutions for industrial, automotive, and consumer markets.
The 78K0/LE3 product line delivers cost-optimized 8-bit MCUs with integrated LCD controllers for display-centric embedded systems in white goods, instrumentation, and portable medical devices.
FAQ
What is the maximum LCD segment count supported by the UPD78F0452GK(S)-GAJ-M1-AX?
The UPD78F0452GK(S)-GAJ-M1-AX supports up to 288 LCD segments in 4-multiplex mode, using dedicated COM0–COM7 and SEG0–SEG31 terminals. This is confirmed in Section 1.2 (Applications) and Section 2.2.14–2.2.15 of the R01UH0180EJ0200 User's Manual. The actual segment count depends on selected multiplex ratio and pin mapping configuration.
Does the UPD78F0452GK(S)-GAJ-M1-AX include an on-chip debug interface?
Yes, the UPD78F0452GK(S)-GAJ-M1-AX supports on-chip debugging via the single-wire debug interface compatible with QB-MINI2 and QB-78K0LX3 emulators. This is documented in Section 1.7 (Outline of Functions) and Appendix A of the R01UH0180EJ0200 manual. No external JTAG adapter is required for basic firmware download and breakpoint debugging.
What is the operating voltage range for the UPD78F0452GK(S)-GAJ-M1-AX?
The UPD78F0452GK(S)-GAJ-M1-AX operates from 1.8 V to 5.5 V over the full industrial temperature range (−40°C to +85°C), as specified in Section 3.1 (Electrical Characteristics) of the R01UH0180EJ0200 manual. This wide range enables direct use with single-cell lithium, two-cell alkaline, or regulated 3.3 V/5 V supplies without level-shifting.
Can the UPD78F0452GK(S)-GAJ-M1-AX drive a 4-mux LCD without external bias components?
Yes, the UPD78F0452GK(S)-GAJ-M1-AX integrates an LCD bias generator and charge pump (VLCD regulator) capable of generating required bias voltages for 4-multiplex operation. Section 2.2.14 (COM0–COM7) and Section 2.2.15 (VLC0–VLC3) of the R01UH0180EJ0200 manual confirm internal bias generation eliminates need for external resistive divider or capacitor-based bias networks.
What development tools are officially supported for the UPD78F0452GK(S)-GAJ-M1-AX?
Renesas officially supports the QB-MINI2 on-chip debugger, QB-78K0LX3 in-circuit emulator, RA78K0 assembler (Ver. 3.80/4.01), CC78K0 C compiler (Ver. 3.70/4.00), and PM+ IDE (Ver. 5.20/6.30) for the UPD78F0452GK(S)-GAJ-M1-AX. These tools are listed in the "Documents Related to Development Tools" section of the R01UH0180EJ0200 manual and validated for full Flash programming and real-time debugging.
UPD78F0452GK(S)-GAJ-M1-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 46
- 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:
- A/D 8x10b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F0452GK(S)-GAJ-M1-AX FAQ
1.How can I place an order for UPD78F0452GK(S)-GAJ-M1-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0452GK(S)-GAJ-M1-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 UPD78F0452GK(S)-GAJ-M1-AX reliable?
The price and inventory of UPD78F0452GK(S)-GAJ-M1-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0452GK(S)-GAJ-M1-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0452GK(S)-GAJ-M1-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0452GK(S)-GAJ-M1-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0452GK(S)-GAJ-M1-AX?
UPD78F0452GK(S)-GAJ-M1-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0452GK(S)-GAJ-M1-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 UPD78F0452GK(S)-GAJ-M1-AX?
For technical support, including UPD78F0452GK(S)-GAJ-M1-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0452GK(S)-GAJ-M1-AX requirements.
6.How does Aetrix verify that UPD78F0452GK(S)-GAJ-M1-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0452GK(S)-GAJ-M1-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 UPD78F0452GK(S)-GAJ-M1-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0452GK(S)-GAJ-M1-AX?
All UPD78F0452GK(S)-GAJ-M1-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0452GK(S)-GAJ-M1-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 UPD78F0452GK(S)-GAJ-M1-AX part is unused and in its original packaging.
Return procedure for UPD78F0452GK(S)-GAJ-M1-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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