Renesas UPD78F0547AGK-GAK-AX

Overview

UPD78F0547AGK-GAK-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/counter with PWM output capability. It operates at up to 20 MHz using an external crystal (1–20 MHz) or internal high-speed oscillator (8 MHz), and supports 5 V operation with 64-pin LQFP packaging. It is used in industrial control panels requiring deterministic real-time response and integrated analog sensing.

For engineers reviewing the UPD78F0547AGK-GAK-AX datasheet, UPD78F0547AGK-GAK-AX pinout, UPD78F0547AGK-GAK-AX application, or UPD78F0547AGK-GAK-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), A/D conversion time (1.2 μs per channel), interrupt latency (2.5 μs min), and support for on-chip EEPROM emulation via self-programming library.

Technical Context

The UPD78F0547AGK-GAK-AX implements the 78K0 CPU core with 16-bit ALU, 8-bit data bus, and Harvard architecture. It integrates a 10-bit successive-approximation ADC with 16 input channels, a 16-bit reload timer with capture/compare and PWM output, and a UART with LIN bus support. The device uses a dedicated on-chip voltage regulator (REGC pin) for stable internal logic supply.

It supports two operating modes: high-speed mode (up to 20 MHz system clock) and low-power stop mode with wake-up via external interrupt or RTC alarm. Peripheral clock control is managed through individual enable bits in the peripheral enable register (PER0–PER2), allowing selective power gating for energy-sensitive applications.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0547AGK-GAK-AX, R5F104GCAFP#30 offers modern low-power architecture but lacks native LIN hardware and Flash endurance; UPD78F0537AGK-GAK-AX provides identical timing and peripheral compatibility at lower density-making it ideal for firmware-downgraded legacy upgrades.

Availability

UPD78F0547AGK-GAK-AX is available at Aetrix Electronics and suitable for industrial motor control, building automation panels, and medical infusion pumps requiring stable component supply and long-term production continuity.

Supply support for UPD78F0547AGK-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power management ICs for industrial, automotive, and infrastructure markets.

The 78K0/KF2 product line delivers cost-optimized 8-bit MCUs targeting deterministic real-time control in resource-constrained embedded systems, with emphasis on analog integration, Flash reliability, and industrial temperature operation (−40 °C to +85 °C).

FAQ

What is the maximum operating frequency of the UPD78F0547AGK-GAK-AX?

The UPD78F0547AGK-GAK-AX supports a maximum system clock frequency of 20 MHz when driven by an external crystal oscillator (1–20 MHz range) or 8 MHz using its internal high-speed oscillator. This frequency determines instruction execution speed, timer resolution, and ADC sampling rate-enabling real-time control loops with sub-50 μs cycle times in applications like motor commutation.

Does the UPD78F0547AGK-GAK-AX include hardware support for LIN communication?

Yes, the UPD78F0547AGK-GAK-AX includes dedicated LIN bus functionality within its UART0 module, supporting LIN 2.0 physical layer requirements including automatic sync-break detection, checksum generation, and slave node response timing. This eliminates the need for external LIN transceivers in simple node implementations and reduces software overhead in automotive body electronics designs.

How many analog input channels does the UPD78F0547AGK-GAK-AX ADC support?

The UPD78F0547AGK-GAK-AX integrates a 10-bit successive-approximation ADC with 16 selectable analog input channels mapped to dedicated pins (AN0–AN15). These channels share a common sample-and-hold circuit and support both single-ended and differential input configurations, enabling simultaneous monitoring of multiple sensors such as temperature, pressure, and current shunts in industrial control systems.

What is the Flash memory endurance specification for the UPD78F0547AGK-GAK-AX?

The UPD78F0547AGK-GAK-AX guarantees 100,000 write/erase cycles for its 64 KB on-chip Flash memory, with data retention specified for 20 years at 85 °C. This endurance rating applies to both program code storage and EEPROM emulation usage via the self-programming library, making it suitable for applications requiring frequent field firmware updates or runtime parameter logging.

Is the UPD78F0547AGK-GAK-AX pin-compatible with other members of the 78K0/KF2 family?

Yes, the UPD78F0547AGK-GAK-AX shares the same 64-pin LQFP package and pin assignment with other 78K0/KF2 devices including UPD78F0544AGK-GAK-AX, UPD78F0545AGK-GAK-AX, and UPD78F0546AGK-GAK-AX. Pin compatibility extends to power, ground, reset, oscillator, and all I/O port mappings-allowing hardware reuse across variants differentiated primarily by Flash size and peripheral enablement.