Renesas UPD78F0534AGB-GAH-AX

Overview

UPD78F0534AGB-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 CPU core operating at up to 20 MHz. It integrates a 10-bit ADC (8 channels), UART, I²C, and 16-bit timer arrays for real-time control in embedded sensor interfaces and industrial I/O modules.

For engineers reviewing the UPD78F0534AGB-GAH-AX datasheet, UPD78F0534AGB-GAH-AX pinout, UPD78F0534AGB-GAH-AX application, or UPD78F0534AGB-GAH-AX equivalent, key selection criteria include its 64-pin LQFP package, 2.7–5.5 V supply range, -40°C to +85°C industrial temperature grade, and support for in-system programming via on-chip self-programming library.

Technical Context

The UPD78F0534AGB-GAH-AX implements the 78K0 CPU core with 16-bit ALU, 16-bit index registers, and 16-bit program counter. It supports instruction cycle times as fast as 50 ns (20 MHz system clock) and includes dedicated hardware for interrupt handling with 128 vector entries and priority-level control.

Its peripheral set includes three 16-bit timer arrays (each with capture/compare/PWM functions), a watchdog timer with independent clock source, and a voltage monitor with reset generation. The on-chip A/D converter operates with conversion time of 1.2 μs per channel (typ.) under 20 MHz operation.

Key Specifications

Pinout & Package

UPD78F0534AGB-GAH-AX is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined across eight general-purpose ports (P0–P7), plus dedicated analog, power, and control pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0534AGB-GAH-AX, R5F100PLAFB#30 offers superior low-power performance but reduced analog and timing capability, while UPD78F0537AGB-GAH-AX provides seamless memory scalability within identical hardware constraints.

Availability

UPD78F0534AGB-GAH-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, smart HVAC controllers, and factory I/O terminals requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from Renesas-authorized channels.

Supply support for UPD78F0534AGB-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 Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The UPD78F0534AGB-GAH-AX belongs to the 78K0/Kx2 product line, designed specifically for cost-sensitive, high-reliability embedded control applications demanding robust peripheral integration and long-lifecycle support in industrial environments.

FAQ

What is the maximum operating frequency of the UPD78F0534AGB-GAH-AX?

The UPD78F0534AGB-GAH-AX supports a maximum system clock frequency of 20 MHz, corresponding to a minimum instruction cycle time of 50 ns. This timing is achievable using the on-chip PLL or external crystal oscillator (X1) with appropriate configuration of the clock control registers. The UPD78F0534AGB-GAH-AX maintains full peripheral functionality-including ADC, UART, and timer operations-at this maximum speed.

Does the UPD78F0534AGB-GAH-AX include on-chip debug capability?

Yes, the UPD78F0534AGB-GAH-AX integrates a full-featured on-chip debug circuit compliant with Renesas QB-MINI2 and QB-78K0KX2 emulators. It supports real-time execution control, hardware breakpoints, register and memory inspection, and flash programming-all without requiring external debug headers. This capability is active across all power modes except HALT and STOP.

Can the UPD78F0534AGB-GAH-AX perform in-system programming of its Flash memory?

Yes, the UPD78F0534AGB-GAH-AX supports in-system programming via its built-in self-programming library (SPL). The SPL enables erasing and writing of Flash memory blocks (128 bytes) during normal application execution, allowing field firmware updates without removing the device from the PCB. The UPD78F0534AGB-GAH-AX requires no external high-voltage programming signal.

What is the ADC resolution and channel count of the UPD78F0534AGB-GAH-AX?

The UPD78F0534AGB-GAH-AX features a 10-bit successive approximation ADC with 8 analog input channels (AN0–AN7), mapped to P24–P27 and additional port pins. Conversion time is 1.2 μs (typ.) at 20 MHz system clock, and the ADC supports both internal and external reference voltage sources (AVREF/AVSS). The UPD78F0534AGB-GAH-AX also allows software-triggered or timer-triggered conversions.

Is the UPD78F0534AGB-GAH-AX qualified for industrial temperature operation?

Yes, the UPD78F0534AGB-GAH-AX is rated for industrial temperature operation from -40°C to +85°C and classified as a "Standard" quality grade device per Renesas documentation. It is approved for use in computers, office equipment, communications gear, test equipment, and industrial robots-making it suitable for deployment in factory automation, building controls, and outdoor sensor enclosures.