Renesas UPD78F0544AGC-GAD-AX

Overview

UPD78F0544AGC-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 16-bit timer array unit (TAU) with capture/compare functionality. It operates at up to 20 MHz CPU clock frequency with 10-bit ADC (8 channels), UART, I²C, and CAN 2.0B interface. It targets industrial control modules requiring deterministic real-time response and embedded communication.

For engineers reviewing the UPD78F0544AGC-GAD-AX datasheet, UPD78F0544AGC-GAD-AX pinout, UPD78F0544AGC-GAD-AX application, or UPD78F0544AGC-GAD-AX equivalent, key selection criteria include its CAN 2.0B compliance, 10-bit ADC resolution with sample-and-hold, TAU-based PWM generation capability, and support for flash self-programming in-system.

Technical Context

The UPD78F0544AGC-GAD-AX implements the 78K0S core with 16-bit ALU, 32 × 8-bit general-purpose registers, and 16-level hardware stack. Its peripheral set includes a 16-bit timer array unit (TAU) supporting input capture, output compare, PWM, and interval timing - all synchronized to the same base clock source.

It integrates a CAN controller compliant with ISO 11898-1:2003, supporting both standard and extended frames, with 32 message objects and programmable acceptance filtering. The on-chip 10-bit ADC features 8 input channels, 1.2 μs conversion time, and selectable reference voltage sources (AVREF or VDD).

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in industrial ambient conditions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with UPD78F0544AGC-GAD-AX, R5F104GCAFP#30 offers superior energy efficiency but lacks CAN and reduces Flash capacity by 25%, while UPD78F0537AGC-GAD-AX preserves full hardware compatibility at the expense of CAN support and memory scalability.

Availability

UPD78F0544AGC-GAD-AX is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and factory automation I/O terminals requiring stable component supply across long production lifecycles.

Supply support for UPD78F0544AGC-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, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The 78K0/KF2 product line delivers robust, cost-optimized 8-bit MCUs targeting deterministic real-time control in harsh environments - particularly where CAN connectivity, analog sensing, and field-upgradable firmware are essential.

FAQ

What is the maximum operating frequency of the UPD78F0544AGC-GAD-AX?

The UPD78F0544AGC-GAD-AX supports a maximum system clock frequency of 20 MHz, enabling a 100 ns instruction cycle time for time-critical interrupt service routines. This frequency is achieved using an external crystal oscillator (X1) or external clock input, with internal PLL options available for clock multiplication. The actual achievable frequency depends on supply voltage and ambient temperature per the device's AC characteristics table.

Does the UPD78F0544AGC-GAD-AX include a CAN controller?

Yes, the UPD78F0544AGC-GAD-AX integrates a fully compliant CAN 2.0B controller supporting both standard and extended frame formats. It provides 32 message objects, hardware acceptance filtering, and automatic retransmission. The CAN module connects to dedicated P10 (CAN0RX) and P11 (CAN0TX) pins and operates independently of the CPU during message transmission/reception, reducing software overhead.

What is the Flash memory endurance specification for the UPD78F0544AGC-GAD-AX?

The UPD78F0544AGC-GAD-AX guarantees 100,000 write/erase cycles for its 64 KB on-chip Flash memory, with data retention specified for 20 years at Ta = 85°C. This endurance rating applies to standard erase/program operations using the on-chip self-programming library. Endurance may vary under accelerated temperature or voltage stress conditions outside recommended operating ranges.

How many ADC channels does the UPD78F0544AGC-GAD-AX support?

The UPD78F0544AGC-GAD-AX features an 8-channel, 10-bit successive approximation ADC with a minimum conversion time of 1.2 μs. Channels map to port pins P10–P17 (AN0–AN7), and the ADC supports selectable reference voltages (AVREF or VDD). Sample-and-hold functionality ensures accurate measurement of fast-changing analog signals in motor control or sensor monitoring applications.

Is the UPD78F0544AGC-GAD-AX pin-compatible with other 78K0/KF2 devices?

Yes, the UPD78F0544AGC-GAD-AX shares the same 100-pin LQFP package and pin assignment with other members of the 78K0/KF2 family, including UPD78F0545AGC-GAD-AX and UPD78F0547AGC-GAD-AX. Pin compatibility extends to power, ground, reset, oscillator, and peripheral I/O assignments, enabling hardware reuse across variants differing primarily in Flash size, RAM, and peripheral enablement.