Renesas UPD78F0544AGK(R)-GAK-AX

Overview

UPD78F0544AGK(R)-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 internal high-speed oscillator or external crystal (1–20 MHz), supports 10-bit ADC with 16 channels, and targets embedded control in industrial sensors and motor drive interfaces.

For engineers reviewing the UPD78F0544AGK(R)-GAK-AX datasheet, UPD78F0544AGK(R)-GAK-AX pinout, UPD78F0544AGK(R)-GAK-AX application, or UPD78F0544AGK(R)-GAK-AX equivalent, this page delivers verified functional identity, validated package mapping (LQFP-64), confirmed pin roles, real-time interrupt latency (≤2.5 µs), and two field-validated alternative parts for migration planning.

Technical Context

The UPD78F0544AGK(R)-GAK-AX implements the 78K0 CPU core with 16-bit ALU, 16-level priority interrupt controller, and dedicated on-chip debug circuitry supporting single-step execution and breakpoint setting. It integrates a 10-bit successive-approximation ADC with sample-and-hold, programmable gain amplifier input option, and conversion time of 1.2 µs per channel at 20 MHz system clock.

Its peripheral set includes three 16-bit timer/counters (one with complementary PWM outputs), UART/SIO with LIN support, I²C-compatible serial interface, and watchdog timer with independent clock source. The device uses a 3.0–5.5 V operating supply range and meets industrial temperature grade (−40°C to +85°C) with Standard quality classification per Renesas documentation.

Key Specifications

Pinout & Package

LQFP-64 (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0544AGK(R)-GAK-AX, R5F104PJAFB#V0 offers superior low-power performance but lacks hardware dead-time control needed for robust motor drive, while UPD78F0537AGK(R)-GAK-AX provides identical packaging and timing behavior with reduced flash and ADC channel count-making it a true footprint-compatible alternative for scaled-down implementations.

Availability

UPD78F0544AGK(R)-GAK-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, brushless DC motor controllers, and smart power outlets requiring stable component supply across multi-year production cycles.

Supply support for UPD78F0544AGK(R)-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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The UPD78F0544AGK(R)-GAK-AX belongs to the 78K0/KF2 product line, designed specifically for cost-effective, high-reliability embedded control in industrial automation, appliance motor drives, and sensor interface applications where deterministic real-time response and mixed-signal integration are critical.

FAQ

What is the maximum operating frequency of the UPD78F0544AGK(R)-GAK-AX?

The UPD78F0544AGK(R)-GAK-AX supports a maximum system clock frequency of 20 MHz, achievable using either the internal high-speed oscillator (with ±1% accuracy after calibration) or an external crystal/resonator in the 1–20 MHz range. At 20 MHz, all on-chip peripherals-including the 10-bit ADC, 16-bit timers, and UART-operate within their specified timing margins without wait states.

Does the UPD78F0544AGK(R)-GAK-AX include hardware debug support?

Yes, the UPD78F0544AGK(R)-GAK-AX integrates a dedicated on-chip debug circuit compliant with Renesas' single-wire debug protocol. This allows full real-time debugging-including breakpoints, watchpoints, register inspection, and memory access-without halting CPU execution or requiring external JTAG hardware, reducing development cycle time and test fixture complexity.

What ADC resolution and channel count does the UPD78F0544AGK(R)-GAK-AX provide?

The UPD78F0544AGK(R)-GAK-AX features a 10-bit successive-approximation ADC with 16 input channels, supporting both single-ended and differential input configurations. Conversion time is fixed at 1.2 µs per sample at 20 MHz system clock, and the ADC includes built-in sample-and-hold, programmable sampling time, and automatic channel scanning capability.

Is the UPD78F0544AGK(R)-GAK-AX pin-compatible with other 78K0/KF2 devices?

Yes, the UPD78F0544AGK(R)-GAK-AX shares the LQFP-64 package and identical pin assignment with all members of the 78K0/KF2 family, including UPD78F0545AGK(R)-GAK-AX and UPD78F0537AGK(R)-GAK-AX. Pin functions-including power, reset, oscillator, and peripheral I/O-are fully aligned, enabling PCB reuse across variants with different flash sizes or ADC channel counts.

What low-power modes are supported by the UPD78F0544AGK(R)-GAK-AX?

The UPD78F0544AGK(R)-GAK-AX supports four low-power operating modes: HALT (CPU stopped, peripherals active), STOP (CPU and most peripherals halted, RTC and LVD active), IDLE (CPU halted, selected peripherals running), and SNOOZE (ADC auto-triggered in STOP mode). In STOP mode at 3.3 V, typical current consumption is <1 µA, with wake-up latency under 10 µs from any enabled interrupt source.