Renesas UPD78F0545AGC-GAD-AX
- Part No.:
- UPD78F0545AGC-GAD-AX
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
UPD78F0545AGC-GAD-AX.pdf
- Description:
- IC MCU 8BIT 60KB FLASH 80LQFP
- Quantity:
- Payment:

- Shipping:

Inventory:2,585
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Product details
Overview
UPD78F0545AGC-GAD-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KF2 family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and a maximum operating frequency of 20 MHz. It integrates a 10-bit A/D converter with 16 channels, UART, I²C, and timer peripherals, and targets embedded control applications in industrial equipment and consumer appliances.
For engineers reviewing the UPD78F0545AGC-GAD-AX datasheet, UPD78F0545AGC-GAD-AX pinout, UPD78F0545AGC-GAD-AX application, or UPD78F0545AGC-GAD-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), A/D conversion time (1.1 μs typical), supply voltage range (2.7–5.5 V), and compliance with industrial-grade temperature operation (−40°C to +85°C).
Technical Context
The UPD78F0545AGC-GAD-AX implements the 78K0 CPU core with 16-bit address space and supports both conventional- and expanded-specification modes. Its on-chip Flash uses SuperFlash® technology licensed from SST, enabling fast erase (10 ms per block) and reliable data retention (20 years at 85°C).
Peripherals include a 16-bit multifunction timer array unit (TAU) with capture/compare and PWM output, a serial interface controller supporting UART and I²C master/slave modes, and a 10-bit A/D converter with programmable sampling time and built-in reference voltage options (AVREF or internal 2.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 78K0 8-bit CISC core with 16-bit addressing and 1.1 μs instruction cycle at 20 MHz |
| Flash Memory | 64 KB on-chip Flash with 100,000 write/erase cycles and 20-year data retention at 85°C |
| RAM | 4 KB on-chip RAM for variables, stack, and temporary data storage |
| A/D Converter | 10-bit resolution, 16 input channels, 1.1 μs conversion time, selectable reference (AVREF or internal 2.5 V) |
| Operating Voltage | 2.7 V to 5.5 V - supports direct interface with 3.3 V and 5 V logic systems |
| Temperature Range | −40°C to +85°C - qualified for industrial environment deployment |
| Max Clock Frequency | 20 MHz - enables real-time response in motor control and sensor monitoring loops |
Pinout & Package
UPD78F0545AGC-GAD-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined across 8 general-purpose ports (P0–P7), analog inputs (AN0–AN15), power/ground terminals (VDD, VSS, EVDD, EVSS, AVREF, AVSS), and dedicated peripheral pins including RESET, REGC, FLMD0, and serial interface signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P00–P07 | Port 0 bidirectional I/O | Configurable as general-purpose I/O or alternate functions including UART TXD/RXD and timer outputs |
| P10–P17 | Port 1 bidirectional I/O | Supports external interrupt inputs (INTP0–INTP7), A/D trigger, and clock input (X1) |
| P20–P27 | Port 2 bidirectional I/O | Provides I²C SCL/SDA, serial interface clock (SI), and timer capture inputs |
| P30–P33 | Port 3 bidirectional I/O | Dedicated to UART control signals (CTS, RTS) and reset configuration (FLMD0) |
| AN0–AN15 | Analog input channels | 16-channel 10-bit A/D inputs with selectable sampling time and internal/external reference support |
| RESET | Active-low reset input | Asynchronous hardware reset; must be held low ≥100 ns after power stabilization |
| REGC | Internal regulator control | Connect to 0.1 μF capacitor to stabilize on-chip voltage regulator output for core logic |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash programming | Self-programmable via on-chip library - enables field firmware updates without external programmer |
| Low-power modes | HALT, STOP, and IDLE modes with wake-up via interrupt or reset - reduces active current to 1.2 mA at 20 MHz |
| Watchdog timer | On-chip 16-bit WDT with independent clock source - prevents system lockup in safety-critical control loops |
| Power-on reset | Integrated POR circuit with 100 μs delay - ensures stable initialization before code execution |
| EMI suppression | Programmable slew rate control on port outputs - reduces radiated emissions in noise-sensitive environments |
Applications
| Industrial Motor Control | Home Appliance HMI |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and washing machine drum drives. IC Role / Device Role / Timing Role: Central controller executing PID algorithms, managing PWM generation, and reading hall-effect sensor feedback via GPIO and A/D. Use Value: 20 MHz CPU and 1.1 μs A/D conversion enable sub-millisecond loop timing; 16-channel A/D supports multi-sensor monitoring without external mux. | Use Scenario: Touch-button interface and display management in microwave ovens and rice cookers. IC Role / Device Role / Timing Role: Input scanning (capacitive or resistive), LED/LCD driver control, and buzzer tone generation via timer PWM. Use Value: Integrated 4 KB RAM buffers touch event queues; low-power STOP mode extends battery life in cordless remotes. |
| Smart Power Metering | Factory Automation Sensor Node |
Use Scenario: Energy measurement and communication in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Reads shunt-based current/voltage signals via 10-bit A/D, computes RMS and harmonics, and transmits data via UART to PLC or RF module. Use Value: 16-channel A/D allows simultaneous sampling of multiple phases; 64 KB Flash stores metering firmware and calibration tables. | Use Scenario: Distributed temperature and vibration sensing in CNC machine tool enclosures. IC Role / Device Role / Timing Role: Acquires analog sensor outputs, performs local threshold detection, and reports alerts via I²C to master controller. Use Value: Industrial −40°C to +85°C rating ensures reliability near heat-generating spindles; REGC-stabilized core voltage maintains timing accuracy under load transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F104GCAFP#30 | RL78/G13 core, 32 KB Flash, 4 KB RAM, 32 MHz max, integrated debug interface | Higher performance and lower active current (120 μA/MHz), but requires different toolchain and lacks legacy 78K0 instruction compatibility | Select when migrating to newer RL78 platform with enhanced low-power features and EOL mitigation strategy |
| UPD78F0535AGC-GAD-AX | Same 78K0/KF2 family, 48 KB Flash, 3.5 KB RAM, identical pinout and peripheral set | Lower memory capacity suits simpler control tasks; same footprint allows PCB reuse with minor firmware adaptation | Select when application firmware fits within 48 KB Flash and cost optimization is prioritized over future scalability |
Compared with UPD78F0545AGC-GAD-AX, R5F104GCAFP#30 offers higher clock efficiency and integrated debugging but requires architecture migration, while UPD78F0535AGC-GAD-AX provides drop-in compatibility with reduced memory - making it ideal for derivative designs where Flash headroom is not required.
Availability
UPD78F0545AGC-GAD-AX is available at Aetrix Electronics and suitable for industrial motor control, smart metering, and home appliance HMI applications requiring stable component supply and long-term production continuity.
Supply support for UPD78F0545AGC-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 infrastructure markets.
The 78K0/KF2 product line delivers cost-optimized 8-bit MCUs with robust Flash reliability and industrial temperature support, designed for resource-constrained embedded control in factory automation and white goods.
FAQ
What is the maximum operating frequency of the UPD78F0545AGC-GAD-AX?
The UPD78F0545AGC-GAD-AX operates at a maximum frequency of 20 MHz using its on-chip oscillator or external crystal (X1). This frequency is supported across the full industrial temperature range (−40°C to +85°C) and supply voltage range (2.7 V to 5.5 V), enabling deterministic real-time execution for control loops and sensor processing without external clock conditioning.
Does the UPD78F0545AGC-GAD-AX support in-system programming?
Yes, the UPD78F0545AGC-GAD-AX supports in-system programming via its on-chip self-programming library. This allows firmware updates in the field using standard UART or I²C interfaces without removing the device from the board. The library handles Flash erase and write operations with built-in error checking, and UPD78F0545AGC-GAD-AX retains full functionality during programming sequences.
What are the A/D converter specifications of the UPD78F0545AGC-GAD-AX?
The UPD78F0545AGC-GAD-AX integrates a 10-bit successive-approximation A/D converter with 16 input channels. Conversion time is 1.1 μs typical at 20 MHz, and reference voltage can be selected from AVREF pin or internal 2.5 V source. The A/D module supports software-triggered and timer-triggered conversions, and results are stored in dedicated 16-bit result registers accessible via SFRs.
Is the UPD78F0545AGC-GAD-AX pin-compatible with other 78K0/KF2 devices?
Yes, the UPD78F0545AGC-GAD-AX shares the same 100-pin LQFP package and pin assignment with other members of the 78K0/KF2 family, including UPD78F0544AGC-GAD-AX and UPD78F0546AGC-GAD-AX. Pin compatibility extends to power, ground, reset, oscillator, and all port and peripheral signal locations, allowing hardware reuse across variants with differing Flash/RAM sizes and peripheral configurations.
What development tools are officially supported for the UPD78F0545AGC-GAD-AX?
Renesas officially supports the QB-MINI2 on-chip debug emulator and the RA78K0 assembler package for UPD78F0545AGC-GAD-AX. The CC78K0 C compiler and ID78K0-QB integrated debugger are also validated for this device. These tools provide full register visibility, real-time trace, Flash programming, and peripheral simulation - all confirmed in the UPD78F0545AGC-GAD-AX hardware manual Rev.4.01 and related tool documentation.
UPD78F0545AGC-GAD-AX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 80-LQFP
- Series:
- 78K0/Kx2
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 78K/0
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- 3-Wire SIO, I2C, LINbus, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 71
- Program Memory Size:
- 60KB (60K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 3K 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:
UPD78F0545AGC-GAD-AX FAQ
1.How can I place an order for UPD78F0545AGC-GAD-AX through Aetrix?
Please submit a Request for Quotation (RFQ) for UPD78F0545AGC-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 UPD78F0545AGC-GAD-AX reliable?
The price and inventory of UPD78F0545AGC-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 UPD78F0545AGC-GAD-AX is usually 5 days.
3.What payment methods are accepted for UPD78F0545AGC-GAD-AX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0545AGC-GAD-AX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UPD78F0545AGC-GAD-AX?
UPD78F0545AGC-GAD-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UPD78F0545AGC-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 UPD78F0545AGC-GAD-AX?
For technical support, including UPD78F0545AGC-GAD-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0545AGC-GAD-AX requirements.
6.How does Aetrix verify that UPD78F0545AGC-GAD-AX is sourced from the original manufacturer or authorized distributors?
All UPD78F0545AGC-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 UPD78F0545AGC-GAD-AX meets industry standards.
7.What is the process for return or replacement of UPD78F0545AGC-GAD-AX?
All UPD78F0545AGC-GAD-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0545AGC-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 UPD78F0545AGC-GAD-AX part is unused and in its original packaging.
Return procedure for UPD78F0545AGC-GAD-AX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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