Renesas UPD78F0536AGK-GAJ-AX

Overview

UPD78F0536AGK-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 CPU core operating at up to 20 MHz. It integrates 10-bit ADC (8 channels), UART, I²C, and 16-bit timer/counters, and targets embedded control in industrial sensors and motor drive interfaces.

For engineers reviewing the UPD78F0536AGK-GAJ-AX datasheet, UPD78F0536AGK-GAJ-AX pinout, UPD78F0536AGK-GAJ-AX application, or UPD78F0536AGK-GAJ-AX equivalent, key selection criteria include Flash endurance (100,000 erase/write cycles), operating voltage range (2.7–5.5 V), and package-specific thermal resistance (θ_JA = 49 °C/W) for QFP-64 applications requiring long-term firmware stability.

Technical Context

The UPD78F0536AGK-GAJ-AX implements the 78K0 CPU core with 16-bit ALU, supporting 131 instructions and 4 addressing modes. Its on-chip peripherals include a 10-bit successive-approximation ADC with sample-and-hold, dual UARTs with LIN support, and three 16-bit reload timers with input capture/output compare capability.

It operates from a single 2.7–5.5 V supply, supports internal clock generation via on-chip oscillator (1 MHz, ±1%), and includes power-saving modes (HALT, STOP) with wake-up via external interrupt or timer event. The device uses SuperFlash® technology licensed from SST for Flash memory programming.

Key Specifications

Pinout & Package

UPD78F0536AGK-GAJ-AX is housed in a 64-pin LQFP (Low-profile Quad Flat Package) with 0.5 mm lead pitch, JEDEC MS-026AC compliant, and rated for industrial temperature range (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0536AGK-GAJ-AX, R5F100LEAFB#30 offers modern toolchain support and lower power but reduced Flash and no native LIN 2.1; STM8S105K4T6C provides broader distribution and lower unit cost but lacks hardware LIN compliance and has less robust Flash endurance (10,000 cycles).

Availability

UPD78F0536AGK-GAJ-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor controllers, and smart meter interfaces requiring stable component supply across extended product lifecycles.

Supply support for UPD78F0536AGK-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, and power devices for industrial, automotive, and IoT applications.

The 78K0/KE2 product line delivers cost-optimized 8-bit MCUs for resource-constrained embedded control, emphasizing Flash reliability, mixed-signal integration, and long-term industrial support.

FAQ

What is the maximum operating frequency of the UPD78F0536AGK-GAJ-AX?

The UPD78F0536AGK-GAJ-AX supports a maximum system clock frequency of 20 MHz. This is achieved using either an external crystal (up to 20 MHz) or the internal high-speed oscillator (1 MHz, ±1%) with PLL multiplication. At 20 MHz, the instruction cycle time is 50 ns, enabling deterministic real-time response for motor control and sensor sampling tasks. The device maintains full functionality across its specified industrial temperature range (−40°C to +85°C) at this speed.

Does the UPD78F0536AGK-GAJ-AX support LIN bus communication?

Yes, the UPD78F0536AGK-GAJ-AX supports LIN 2.1-compliant communication via UART1. It includes hardware features such as sync-break detection, automatic baud rate adjustment, and LIN header checksum validation. These capabilities allow the UPD78F0536AGK-GAJ-AX to function as a LIN slave node in automotive body electronics or industrial distributed control networks without requiring external LIN transceivers for basic implementation.

What is the Flash memory endurance specification for the UPD78F0536AGK-GAJ-AX?

The UPD78F0536AGK-GAJ-AX guarantees 100,000 erase/write cycles for its 64 KB on-chip Flash memory, with data retention exceeding 100 years at 85°C. This endurance is validated under Renesas' standard test conditions and applies to all Flash sectors. The device also includes a Flash self-programming library (Type01) that manages wear leveling and error handling during firmware updates, ensuring reliable field upgrades throughout the product lifecycle.

How many analog input channels does the built-in ADC support on the UPD78F0536AGK-GAJ-AX?

The UPD78F0536AGK-GAJ-AX integrates a 10-bit successive-approximation ADC with 8 analog input channels (AN0–AN7). These channels are multiplexed onto Port 1 pins (P10–P17) and support simultaneous sampling via hardware trigger from timers or external events. Conversion time is fixed at 1.2 μs per channel, and the ADC includes hardware averaging across up to four samples to improve effective resolution in noisy environments.

What power supply configuration is required for stable analog operation of the UPD78F0536AGK-GAJ-AX?

Stable analog operation of the UPD78F0536AGK-GAJ-AX requires separate power domains: VDD (digital core), EVDD (external I/O), and AVDD (analog reference, derived internally). A 1 μF ceramic capacitor must be connected to the REGC pin to stabilize the internal analog regulator. AVSS and VSS must be connected to clean ground planes with low-inductance paths, and analog inputs should avoid routing near high-speed digital traces to maintain ≥60 dB SNR in ADC measurements.