Renesas UPD78F0533AGB-GAH-AX

Overview

UPD78F0533AGB-GAH-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 using an external crystal or internal high-speed oscillator, supports 10-bit ADC with 16 channels, and includes UART, CSI, and I²C interfaces for embedded control. It is used in industrial motor control, sensor interface modules, and appliance power management systems.

For engineers reviewing the UPD78F0533AGB-GAH-AX datasheet, UPD78F0533AGB-GAH-AX pinout, UPD78F0533AGB-GAH-AX application, or UPD78F0533AGB-GAH-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating voltage range (2.7–5.5 V), A/D conversion time (1.2 μs typical), and support for self-programming via on-chip library - all critical for firmware-upgradable industrial edge nodes.

Technical Context

The UPD78F0533AGB-GAH-AX implements the 78K0 CPU core with 16-bit addressing, supporting 131 instructions and 8 interrupt priority levels. Its peripheral set includes a 16-bit TAU with 8 capture/compare channels, a 10-bit ADC with sample-and-hold and hardware-triggered conversion, and dual serial interfaces (UART + CSI or I²C) enabling simultaneous host communication and sensor bus control.

It integrates a programmable low-voltage detection (LVD) circuit (2.5 V or 4.0 V threshold), watchdog timer with independent clock source, and on-chip debug interface compatible with QB-MINI2. The device uses a 100-pin LQFP package with dedicated EVDD/EVSS pins for analog power supply separation, ensuring stable ADC performance under mixed-signal operation.

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas Hardware User's Manual Rev.4.01 (R01UH0008EJ0401), Section 2.1.4 (78K0/KE2) and Section 2.2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0533AGB-GAH-AX, R5F100PLAFB#30 offers superior energy efficiency but sacrifices TAU-based PWM flexibility, while UPD78F0527AGB-GAH-AX provides identical peripheral functionality at lower Flash capacity - making it a true pin-compatible alternative for firmware-constrained deployments.

Availability

UPD78F0533AGB-GAH-AX is available at Aetrix Electronics and suitable for industrial motor control, smart appliance power management, and building automation nodes requiring stable component supply across multi-year production cycles.

Supply support for UPD78F0533AGB-GAH-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 Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The 78K0/KE2 product line delivers cost-optimized 8-bit MCUs targeting resource-constrained embedded control applications where deterministic real-time response, Flash endurance, and analog integration are essential - such as motor drives, home appliances, and sensor nodes.

FAQ

What is the maximum operating frequency of the UPD78F0533AGB-GAH-AX?

The UPD78F0533AGB-GAH-AX supports a maximum system clock frequency of 20 MHz when driven by an external crystal oscillator. With its internal high-speed oscillator, it operates up to 8 MHz. This frequency determines instruction execution speed and peripheral timing resolution - for example, the 16-bit TAU achieves 50 ns timer resolution at 20 MHz, enabling precise PWM duty-cycle control in motor applications. The UPD78F0533AGB-GAH-AX datasheet specifies AC characteristics only within these validated ranges.

Does the UPD78F0533AGB-GAH-AX include hardware support for PWM generation?

Yes, the UPD78F0533AGB-GAH-AX integrates a 16-bit Timer Array Unit (TAU) with eight independent channels capable of complementary PWM output with programmable dead-time insertion. This feature directly supports three-phase inverter gate driving without external logic. The UPD78F0533AGB-GAH-AX also allows synchronous ADC triggering from TAU overflow events, enabling current-sampling aligned to PWM center points - a requirement for field-oriented control algorithms.

What is the Flash memory endurance specification for the UPD78F0533AGB-GAH-AX?

The UPD78F0533AGB-GAH-AX guarantees 100,000 write/erase cycles for its 64 KB on-chip Flash memory, with data retention exceeding 20 years at 85°C. This endurance is validated per Renesas' qualification testing and applies to both block erase and byte programming operations. Firmware update routines implemented using the UPD78F0533AGB-GAH-AX self-programming library must respect sector alignment and erase-before-write constraints to maintain this rating throughout product life.

Can the UPD78F0533AGB-GAH-AX operate from a 3.3 V supply?

Yes, the UPD78F0533AGB-GAH-AX operates across a supply voltage range of 2.7 V to 5.5 V, fully supporting standard 3.3 V logic systems. At 3.3 V, it maintains full functionality including 20 MHz operation (with external crystal), 10-bit ADC performance, and all serial interfaces. The UPD78F0533AGB-GAH-AX requires separate EVDD/EVSS connections for analog circuitry to preserve ADC accuracy, and its LVD module can be configured to monitor 3.3 V rail integrity.

Is there an on-chip debug interface on the UPD78F0533AGB-GAH-AX?

Yes, the UPD78F0533AGB-GAH-AX includes a dedicated on-chip debug interface compliant with Renesas' standard protocol, enabling full visibility into CPU registers, memory, and peripheral states using tools like QB-MINI2. This interface supports non-intrusive breakpoints, real-time variable watch, and flash programming - all without requiring additional pins beyond the standard SWD/JTAG header. The UPD78F0533AGB-GAH-AX debug architecture does not consume user RAM or Flash resources during active debugging sessions.