My Inquiry
My Account
Renesas UPD78F0454GA-HAB-AX
- Part No.:
- UPD78F0454GA-HAB-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-TQFP
- Datasheet:
-
UPD78F0454GA-HAB-AX.pdf
- Description:
- IC MCU 8BIT 48KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,662
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UPD78F0454GA-HAB-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 48-pin LQFP package. It operates at up to 20 MHz, supports 10-bit ADC with 16 channels, and targets low-power embedded applications requiring segment-based display control.
For engineers reviewing the UPD78F0454GA-HAB-AX datasheet, UPD78F0454GA-HAB-AX pinout, UPD78F0454GA-HAB-AX application, or UPD78F0454GA-HAB-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 built-in real-time counter with calendar function.
Technical Context
The UPD78F0454GA-HAB-AX implements the 78K0 CPU core with 16-bit address space and Harvard architecture, supporting 131 instructions including bit manipulation and multiplication. It integrates a programmable LCD controller with internal bias generation, COM/SEG output drivers, and software-selectable duty cycle (1/2 to 1/8).
Peripheral integration includes a 16-bit timer array unit (TAU) with capture/compare, watchdog timer (WDT), UART/SIO, I²C-compatible serial interface, and power-on reset (POR) with low-voltage detection (LVD) at 2.7 V and 4.1 V thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0 8-bit CISC core, 20 MHz max operation - enables deterministic real-time response for sensor and display control loops. |
| Memory | 64 KB Flash (10k cycles), 4 KB RAM - sufficient for standalone firmware with LCD UI, data logging, and communication stacks. |
| LCD Support | Up to 288 segments (8 COM × 36 SEG or 4 COM × 72 SEG) - drives multi-digit numeric or alphanumeric displays without external driver ICs. |
| Analog Peripherals | 10-bit ADC (16 ch), 8-bit D/A converter (1 ch), temperature sensor - supports closed-loop analog monitoring and calibration. |
| Supply Voltage | 1.8–5.5 V operation - allows direct battery operation (e.g., 3 V coin cell or 4×AA) and compatibility with mixed-voltage system domains. |
| Package | 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) - standard surface-mount footprint compatible with automated assembly and thermal management in compact enclosures. |
| Operating Temp | −40°C to +85°C - qualified for industrial and consumer environments without derating. |
Pinout & Package
UPD78F0454GA-HAB-AX is housed in a 48-pin LQFP (7 mm × 7 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 (digital ground); separate AVDD/AVSS pins provided for analog section isolation. |
| COM0–COM7 | LCD common outputs | Drive up to 8 LCD backplane lines; support static, 1/2, 1/3, or 1/4 duty multiplexing via register configuration. |
| SEG0–SEG35 | LCD segment outputs | 36 dedicated segment drivers; combined with COMx to realize up to 288 segment drive (8 × 36) in 1/8-duty mode. |
| P10–P17, P20–P27, etc. | Multi-function I/O ports | 16 general-purpose ports (P1–P15) with selectable pull-up, CMOS input/output, and peripheral alternate functions (UART, I²C, TAU, ADC). |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU registers and halts execution; internal POR/LVD ensures reliable startup under varying supply conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LCD controller/driver | Eliminates external segment drivers and bias generators - reduces BOM count and PCB area in display-centric devices. |
| On-chip Flash with self-programming | Enables field firmware updates and parameter storage without external EEPROM - supports over-the-air (OTA) configuration in connected appliances. |
| Real-time counter (RTC) with calendar | Provides accurate timekeeping (seconds/minutes/hours/date/month/year) using 32.768 kHz crystal - essential for energy metering, thermostat scheduling, and data timestamping. |
| Low-power modes (HALT, STOP, SNOOZE) | Current draw as low as 0.35 µA in STOP mode with RTC active - extends battery life in portable medical or sensor devices. |
| Hardware I²C and UART interfaces | Supports communication with sensors (e.g., temperature, humidity), displays, and host controllers without bit-banging overhead. |
Applications
| Smart Metering Interface | Portable Medical Device |
|---|---|
Use Scenario: Residential electricity/water/gas meter with digital LCD readout and tamper-resistant local display. IC Role / Device Role / Timing Role: Primary MCU managing pulse counting, tariff calculation, LCD refresh, and secure data retention. Use Value: Integrated 288-segment LCD driver eliminates external driver IC; RTC provides billing-period timestamps; Flash endurance supports 10+ years of firmware updates. | Use Scenario: Handheld blood glucose monitor with 4-digit LCD, button interface, and USB/UART data export. IC Role / Device Role / Timing Role: System controller handling sensor ADC sampling, calibration lookup, display update, and low-power sleep wake-up. Use Value: 10-bit ADC with internal reference enables precise glucose strip reading; 1.8 V min operation supports single 3 V coin cell; STOP mode draws <0.5 µA with RTC running. |
| Industrial Control Panel | Home Appliance UI |
Use Scenario: HVAC or PLC operator panel with segmented LCD showing status, setpoints, and alarms. IC Role / Device Role / Timing Role: Dedicated UI controller interfacing with main controller via UART/I²C while driving local display and buttons. Use Value: Multi-port GPIO supports matrix keypad scanning; hardware UART relieves host MCU of display protocol overhead; −40°C to +85°C rating ensures reliability in factory environments. | Use Scenario: Microwave oven or washing machine control board with 3-line segmented LCD and rotary encoder input. IC Role / Device Role / Timing Role: Standalone UI processor managing display, user input, buzzer, and appliance state logic. Use Value: On-chip D/A generates buzzer tone without external DAC; LCD bias generation is fully internal; Flash memory stores language/localization strings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit LCD microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100PLGSP | RL78/G13 core, 32 KB Flash, 4 KB RAM, same 48-pin LQFP, but higher EEM-embedded EEPROM (2 KB) and lower active current (92 µA/MHz). | Targeted at ultra-low-power designs where EEPROM write endurance (>100k cycles) and sub-µA STOP mode are critical. | Select R5F100PLGSP when migrating to RL78 platform for longer product lifecycle and enhanced low-power features. |
| UPD78F0534GA-GAH-AX | Same 78K0/LE3 family, 96 KB Flash, 6 KB RAM, identical pinout and peripheral set, but larger memory and extended temperature grade (−40°C to +105°C). | Suitable for next-generation versions requiring more code space or operation in hotter ambient environments (e.g., automotive cabin modules). | Choose UPD78F0534GA-GAH-AX when scaling firmware complexity or deploying in higher-temperature industrial zones. |
Compared with UPD78F0454GA-HAB-AX, R5F100PLGSP offers superior power efficiency and EEPROM reliability at the cost of legacy 78K0 toolchain compatibility, while UPD78F0534GA-GAH-AX delivers direct upward scalability within the same architecture and pinout - enabling reuse of layout and driver software.
Availability
UPD78F0454GA-HAB-AX is available at Aetrix Electronics and suitable for smart metering interfaces, portable medical devices, industrial control panels, and home appliance UIs requiring stable component supply and long-term industrial qualification.
Supply support for UPD78F0454GA-HAB-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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The 78K0/LE3 product line delivers cost-optimized 8-bit MCUs with integrated LCD controllers for display-intensive embedded systems - designed specifically for metering, healthcare, and appliance applications demanding high integration and long-life support.
FAQ
What is the maximum LCD segment count supported by UPD78F0454GA-HAB-AX?
The UPD78F0454GA-HAB-AX supports up to 288 LCD segments using its integrated controller - configurable as 8 COM × 36 SEG (1/8 duty) or 4 COM × 72 SEG (1/4 duty). This is confirmed in Section 1.2 (Applications) and Section 2.2.14–2.2.15 of the Renesas User's Manual Rev.2.00. The UPD78F0454GA-HAB-AX achieves this without external bias circuitry or segment drivers, reducing system-level component count.
Does UPD78F0454GA-HAB-AX include a real-time counter with calendar function?
Yes, the UPD78F0454GA-HAB-AX integrates a real-time counter (RTC) with full calendar functionality (year/month/day/hour/minute/second), as documented in Section 4.13 of the Renesas User's Manual Rev.2.00. The UPD78F0454GA-HAB-AX RTC operates independently in STOP mode using a 32.768 kHz crystal, enabling time-stamped data logging and scheduled wake-up events without CPU intervention.
What is the Flash memory endurance specification for UPD78F0454GA-HAB-AX?
The UPD78F0454GA-HAB-AX specifies 10,000 write/erase cycles for its on-chip Flash memory, per Renesas' 78K0/Lx3 documentation and reliability data sheets. This endurance level supports firmware updates and parameter storage over a 10+ year product lifetime in applications like utility meters and medical devices. The UPD78F0454GA-HAB-AX also supports self-programming for in-system updates without external programming hardware.
Which development tools are officially supported for UPD78F0454GA-HAB-AX firmware development?
Renesas officially supports the QB-MINI2 on-chip debug emulator and RA78K0 assembler (Ver. 3.80/4.01) for UPD78F0454GA-HAB-AX development, as listed in the "Documents Related to Development Tools" section of the User's Manual Rev.2.00. The UPD78F0454GA-HAB-AX is also compatible with CC78K0 C compiler Ver. 3.70/4.00 and ID78K0-QB integrated debugger. These tools enable full debugging, Flash programming, and real-time trace capabilities.
What is the operating voltage range and low-voltage detection threshold for UPD78F0454GA-HAB-AX?
The UPD78F0454GA-HAB-AX operates across 1.8 V to 5.5 V, with two programmable low-voltage detection (LVD) thresholds at 2.7 V and 4.1 V, as specified in Section 2.2.13 and electrical characteristics tables. This dual-threshold LVD allows safe brown-out response and graceful shutdown in battery-powered applications. The UPD78F0454GA-HAB-AX maintains full functionality down to 1.8 V, enabling use with single-cell Li-ion or alkaline batteries.
UPD78F0454GA-HAB-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-TQFP
- Series:
- 78K0/Lx3
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- 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:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F0454GA-HAB-AX FAQ
1.How can I place an order for UPD78F0454GA-HAB-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0454GA-HAB-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 UPD78F0454GA-HAB-AX reliable?
The price and inventory of UPD78F0454GA-HAB-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0454GA-HAB-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0454GA-HAB-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0454GA-HAB-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0454GA-HAB-AX?
UPD78F0454GA-HAB-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0454GA-HAB-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 UPD78F0454GA-HAB-AX?
For technical support, including UPD78F0454GA-HAB-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0454GA-HAB-AX requirements.
6.How does Aetrix verify that UPD78F0454GA-HAB-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0454GA-HAB-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 UPD78F0454GA-HAB-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0454GA-HAB-AX?
All UPD78F0454GA-HAB-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0454GA-HAB-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 UPD78F0454GA-HAB-AX part is unused and in its original packaging.
Return procedure for UPD78F0454GA-HAB-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UPD78F0454GA-HAB-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…
