Renesas UPD78F0533AGK-GAJ-AX

Overview

UPD78F0533AGK-GAJ-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KE2 family, featuring 64 KB on-chip flash memory, 4 KB RAM, and a 16-bit timer array unit (TAU) with PWM output capability. It operates at up to 20 MHz CPU clock frequency using an external crystal or internal high-speed oscillator, supports 10-bit ADC with 16 channels, and targets embedded control applications requiring deterministic real-time response and low-power operation.

For engineers reviewing the UPD78F0533AGK-GAJ-AX datasheet, UPD78F0533AGK-GAJ-AX pinout, UPD78F0533AGK-GAJ-AX application, or UPD78F0533AGK-GAJ-AX equivalent, this page provides verified technical context, package mapping to QFP-64, confirmed peripheral register behavior per Renesas Hardware Manual Rev.4.01, and validated alternative options for industrial motor control, sensor interface, and appliance timing systems.

Technical Context

The UPD78F0533AGK-GAJ-AX implements the 78K0 CPU core with 16-bit ALU, 16-level hardware stack, and instruction set compatible with earlier 78K0 devices. It integrates a 10-bit successive-approximation ADC with sample-and-hold, a 16-bit TAU supporting input capture, output compare, PWM generation, and interval timer modes, and a serial interface supporting UART, CSI, and I²C protocols.

Power management includes HALT, STOP, and IDLE modes with wake-up via external interrupt or peripheral event. The device uses a single 5 V supply (VDD = 4.0–5.5 V), features on-chip voltage regulator (REGC pin), and supports flash self-programming with library-based erase/write routines documented in U17516E and U18274E.

Key Specifications

Pinout & Package

This device is housed in a 64-pin plastic quad flat package (QFP) with 0.5 mm pitch, designated as "GK" in Renesas ordering nomenclature. Pin layout follows JEDEC MS-026 standard, with dedicated power (VDD, VSS, EVDD, EVSS), analog reference (AVREF, AVSS), reset (RESET), oscillator (X1, X2), and 48 general-purpose I/O pins distributed across ports P0–P7 and P12–P14.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100PLAFB#30, UPD78F0533AGK-GAJ-AX delivers higher PWM precision and deterministic ADC-triggered timing; compared with UPD78F0537AGK-GAJ-AX, it offers identical functionality at lower cost and smaller flash footprint - ideal for cost-sensitive volume production where code size remains under 64 KB.

Availability

UPD78F0533AGK-GAJ-AX is available at Aetrix Electronics and suitable for industrial motor control, smart appliance interface, factory automation sensor nodes, and energy metering subsystems requiring stable component supply and long-term manufacturing continuity.

Supply support for UPD78F0533AGK-GAJ-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/KE2 product line was designed for cost-effective, high-reliability embedded control in white goods, factory equipment, and building automation - emphasizing deterministic real-time performance, integrated analog peripherals, and robust flash programming capabilities.

FAQ

What is the maximum operating frequency of the UPD78F0533AGK-GAJ-AX?

The UPD78F0533AGK-GAJ-AX supports a maximum CPU clock frequency of 20 MHz. This can be achieved using either an external crystal connected to X1/X2 pins (1–20 MHz range) or the internal high-speed oscillator (HOC) trimmed to 20 MHz. The actual achievable frequency depends on supply voltage (4.0–5.5 V) and ambient temperature, with full 20 MHz operation guaranteed across the industrial temperature range (−40°C to +85°C) per Renesas Hardware Manual Rev.4.01 Section 1.1.3.

Does the UPD78F0533AGK-GAJ-AX include hardware support for EEPROM emulation?

Yes, the UPD78F0533AGK-GAJ-AX supports EEPROM emulation using Renesas' official library (U18275E). This library leverages the device's 64 KB flash memory to emulate EEPROM functionality with 100,000 write/erase cycles and automatic wear leveling. The implementation requires no external components and is validated for use in applications such as parameter storage and calibration data logging.

What package type and pin count does the UPD78F0533AGK-GAJ-AX use?

The UPD78F0533AGK-GAJ-AX is supplied in a 64-pin plastic quad flat package (QFP) with 0.5 mm lead pitch, identified by the "GK" suffix in the part number. This package conforms to JEDEC MS-026 and provides 48 general-purpose I/O pins across 11 ports, plus dedicated power, analog, oscillator, and control terminals as detailed in Renesas Hardware Manual Rev.4.01 Section 2.1.4 (78K0/KE2).

Can the UPD78F0533AGK-GAJ-AX perform ADC conversions triggered by timer events?

Yes, the UPD78F0533AGK-GAJ-AX supports hardware-triggered ADC conversions using the Timer Array Unit (TAU). Specifically, TAU channel output compare events can directly initiate ADC sampling without CPU intervention, ensuring precise synchronization between PWM generation and current sensing - a key requirement in motor control applications as documented in Renesas Hardware Manual Rev.4.01 Section 3.3.3.

Is the UPD78F0533AGK-GAJ-AX qualified for automotive applications?

No, the UPD78F0533AGK-GAJ-AX is classified as a "Standard" quality grade device per Renesas documentation, intended for computers, office equipment, industrial robots, and home appliances. It is not qualified for automotive use (which requires "High Quality" grade) or safety-critical life-support systems ("Specific" grade). For automotive applications, Renesas recommends RL78/F1x or RH850 families instead.