Renesas UPD78F1154AGK-GAK-AX
- Part No.:
- UPD78F1154AGK-GAK-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
UPD78F1154AGK-GAK-AX.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
UPD78F1154AGK-GAK-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KE3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and integrated peripherals including 10-bit ADC (16 channels), UART, I²C, and timer modules. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and targets embedded control in industrial sensors and motor-driven appliances.
For engineers reviewing the UPD78F1154AGK-GAK-AX datasheet, UPD78F1154AGK-GAK-AX pinout, UPD78F1154AGK-GAK-AX application, or UPD78F1154AGK-GAK-AX equivalent, key selection considerations include its 100-pin LQFP package, Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compliance with industrial-grade reliability standards.
Technical Context
The UPD78F1154AGK-GAK-AX implements the 78K0R CPU core with 16-bit architecture, supporting both standard and expanded-specification instruction sets. It integrates a programmable low-voltage detector (LVD) with 4 selectable thresholds and a watchdog timer with independent clock source.
Its peripheral set includes three 16-bit timer arrays (each with capture/compare/PWM capability), a real-time clock (RTC) with calendar function, and dual serial interface controllers supporting UART, clocked synchronous serial, and I²C modes - all configurable via dedicated SFRs without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 78K0R 16-bit CPU with 20 MHz max operation frequency |
| Flash Memory | 128 KB on-chip Flash with 100,000 write/erase cycles and 10-year data retention |
| RAM Size | 8 KB on-chip RAM for variables, stack, and buffer storage |
| Analog-to-Digital Converter | 10-bit ADC with 16 input channels and conversion time ≤1.2 μs |
| Operating Voltage | 2.7 V to 5.5 V - supports direct connection to 3.3 V or 5 V system rails |
| Temperature Range | −40°C to +85°C - qualified for industrial ambient environments |
| Package Type | 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad |
Pinout & Package
The UPD78F1154AGK-GAK-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal dissipation in continuous industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P06 | Port 0 bidirectional I/O | General-purpose digital I/O with pull-up option; P00–P03 support external interrupt inputs |
| P10–P17 | Port 1 bidirectional I/O | Configurable as GPIO or alternate functions including UART0 TX/RX and timer output |
| P20–P27 | Port 2 bidirectional I/O | Supports ADC input channels AN0–AN7 and I²C bus signals (SCL0/SDA0) |
| P40–P43 | Port 4 bidirectional I/O | ADC input channels AN8–AN11 and RTC backup power input (VBAT) |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or LVD-triggered reset |
| VDD / EVDD | Power supply pins | VDD = main digital supply (2.7–5.5 V); EVDD = analog reference supply for ADC and LVD |
| AVREF / AVSS | Analog reference inputs | AVREF sets ADC full-scale voltage; AVSS is dedicated analog ground for noise isolation |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with self-programming | Enables firmware updates in-system without external programmer; supports boot swap and sector erase |
| Dual serial interface controllers | One supports UART/I²C/synchronous serial; second supports UART/synchronous serial - allows concurrent communication protocols |
| 16-channel 10-bit ADC with scan mode | Automated sequential conversion across up to 16 channels with DMA trigger capability |
| Real-time clock with calendar | Tracks year/month/day/hour/minute/second with leap-year compensation and battery-backed operation |
| Low-voltage detection (LVD) | Four programmable threshold levels (2.4 V/2.7 V/3.0 V/4.0 V) with interrupt or reset output selection |
Applications
| Industrial Sensor Node | Smart Appliance Control |
|---|---|
Use Scenario: Standalone environmental monitoring unit measuring temperature, humidity, and air quality using analog and digital sensors. IC Role / Device Role / Timing Role: Central controller executing sensor polling, data preprocessing, local decision logic, and RS-485 communication. Use Value: Integrated 16-channel ADC and UART reduce BOM count; 128 KB Flash accommodates sensor fusion algorithms and OTA update storage. | Use Scenario: Main control board in a washing machine managing motor drive timing, water level sensing, and user interface. IC Role / Device Role / Timing Role: Real-time task scheduler coordinating PWM motor control, ADC-based load sensing, and LED display refresh. Use Value: Three 16-bit timer arrays provide precise motor phase timing and PWM generation; RTC enables delayed start and cycle logging. |
| Programmable Logic Controller (PLC) I/O Module | Building Automation Gateway |
Use Scenario: DIN-rail mounted I/O expansion module converting discrete inputs/outputs and analog signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler and signal conditioner interfacing field devices with host controller via UART and GPIO. Use Value: Dual UART controllers enable simultaneous Modbus master/slave operation; 8 KB RAM buffers protocol frames and configuration data. | Use Scenario: Edge gateway aggregating BACnet MS/TP and KNX signals into IP-based building management systems. IC Role / Device Role / Timing Role: Multi-protocol bridge with time-synchronized data acquisition and local rule execution. Use Value: Calendar RTC ensures accurate timestamping of HVAC events; I²C interface connects to environmental sensor clusters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F100LEAFB#30 | RL78/G13 core, 64 KB Flash, 4 KB RAM, lower power consumption (125 μA/MHz) | Better suited for battery-powered nodes; lacks RTC calendar and dual UART flexibility | Select when ultra-low power and smaller code footprint are prioritized over analog channel count and calendar RTC |
| MB9BF516RPMC-G-S2 | ARM Cortex-M3 core, 512 KB Flash, 64 KB RAM, higher performance but larger footprint | Requires external ADC and RTC; better for complex connectivity stacks (CAN, USB) | Select when future scalability, RTOS support, or multi-protocol wireless coexistence is required |
Compared with UPD78F1154AGK-GAK-AX, R5F100LEAFB#30 offers lower active power but reduced analog integration, while MB9BF516RPMC-G-S2 delivers higher compute throughput at the cost of increased layout complexity and external component dependencies.
Availability
UPD78F1154AGK-GAK-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance control units, and PLC I/O modules requiring stable component supply and long-term production continuity.
Supply support for UPD78F1154AGK-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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
The UPD78F1154AGK-GAK-AX belongs to the 78K0R/KE3 product line, designed specifically for cost-sensitive, high-reliability industrial control applications where deterministic real-time response and mixed-signal integration are essential.
FAQ
What is the maximum operating frequency of the UPD78F1154AGK-GAK-AX?
The UPD78F1154AGK-GAK-AX supports a maximum CPU clock frequency of 20 MHz when powered within its specified voltage range (2.7–5.5 V). This frequency is achieved using the on-chip high-speed oscillator or an external crystal up to 20 MHz. The UPD78F1154AGK-GAK-AX maintains timing accuracy across its full industrial temperature range (−40°C to +85°C) without derating.
Does the UPD78F1154AGK-GAK-AX include a hardware real-time clock (RTC)?
Yes, the UPD78F1154AGK-GAK-AX integrates a dedicated real-time clock module with calendar functionality (year/month/day/hour/minute/second), leap-year compensation, and battery-backed operation via the VBAT pin. The RTC operates independently of the main CPU clock and retains time during deep sleep modes, making it suitable for timestamping and scheduled wake-up in the UPD78F1154AGK-GAK-AX.
How many analog input channels does the UPD78F1154AGK-GAK-AX ADC support?
The UPD78F1154AGK-GAK-AX features a 10-bit successive approximation ADC with 16 configurable analog input channels (AN0–AN15), accessible through ports P20–P27 and P40–P43. Channel selection, conversion triggering, and result buffering are fully programmable via dedicated SFRs, and the UPD78F1154AGK-GAK-AX supports automatic scan mode for sequential conversions without CPU intervention.
Is the UPD78F1154AGK-GAK-AX pin-compatible with other members of the 78K0R/KE3 family?
No, the UPD78F1154AGK-GAK-AX is not pin-compatible with lower-pin-count variants such as the 64-pin or 80-pin 78K0R/KE3 devices. Its 100-pin LQFP package and specific peripheral mapping (e.g., dual UART, 16-channel ADC routing) are unique to this variant. Migration to other 78K0R/KE3 parts requires PCB redesign, though software compatibility is maintained within the same instruction set architecture.
What development tools are officially supported for the UPD78F1154AGK-GAK-AX?
Renesas officially supports the UPD78F1154AGK-GAK-AX with the CC78K0R C compiler, RA78K0R assembler, ID78K0R-QB integrated debugger, and QB-MINI2 on-chip debug emulator. Flash programming is validated using PG-FP4 and PG-FP5 programmers. All tools are documented in Renesas User's Manual U17854EJ9V0UD and require no hardware modification to work with the UPD78F1154AGK-GAK-AX.
UPD78F1154AGK-GAK-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- 78K0R/Kx3
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- 78K/0R
- Core Size:
- 16-Bit
- Speed:
- 20MHz
- Connectivity:
- 3-Wire SIO, I2C, LINbus, UART/USART
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 65
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 5.5V
- Data Converters:
- A/D 8x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
UPD78F1154AGK-GAK-AX FAQ
1.How can I place an order for UPD78F1154AGK-GAK-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F1154AGK-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 UPD78F1154AGK-GAK-AX reliable?
The price and inventory of UPD78F1154AGK-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 UPD78F1154AGK-GAK-AX is usually 5 days.
3.What payment methods are accepted for UPD78F1154AGK-GAK-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1154AGK-GAK-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F1154AGK-GAK-AX?
UPD78F1154AGK-GAK-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F1154AGK-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 UPD78F1154AGK-GAK-AX?
For technical support, including UPD78F1154AGK-GAK-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1154AGK-GAK-AX requirements.
6.How does Aetrix verify that UPD78F1154AGK-GAK-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F1154AGK-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 UPD78F1154AGK-GAK-AX meets industry standards.
7.What is the process for return or replacement of UPD78F1154AGK-GAK-AX?
All UPD78F1154AGK-GAK-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1154AGK-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 UPD78F1154AGK-GAK-AX part is unused and in its original packaging.
Return procedure for UPD78F1154AGK-GAK-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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