Renesas UPD78F0515AGA(S)-8EU-AT

Overview

UPD78F0515AGA(S)-8EU-AT from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KC2 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 external crystal (1–20 MHz) or internal high-speed oscillator (16 MHz), and integrates UART, I²C, and 10-bit ADC (8 channels). It targets industrial control panels requiring deterministic real-time response and low-power operation.

For engineers reviewing the UPD78F0515AGA(S)-8EU-AT datasheet, UPD78F0515AGA(S)-8EU-AT pinout, UPD78F0515AGA(S)-8EU-AT application, or UPD78F0515AGA(S)-8EU-AT equivalent, this page delivers verified technical context, package mapping, functional pin roles, real-world use cases, and validated alternative options for embedded firmware development and BOM optimization.

Technical Context

The UPD78F0515AGA(S)-8EU-AT implements the 78K0 CPU core with 16-bit ALU, supporting 131 instructions and 4 addressing modes. It uses a Harvard architecture with separate program/data buses and includes a 3-level interrupt priority controller with 32 vector entries.

Its peripheral set includes a 16-bit reload timer (TM00–TM03), watchdog timer (WDT), clock generation circuit with PLL option, and serial interface controller (SIO) configurable as UART or I²C master/slave - all synchronized to the same system clock domain without external glue logic.

Key Specifications

Pinout & Package

UPD78F0515AGA(S)-8EU-AT is housed in a 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Renesas Hardware User's Manual Rev.4.01 (pp.64–66, 78K0/KC2 section).

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0515AGA(S)-8EU-AT, R5F100LGAFB#30 offers enhanced low-power performance and automotive qualification but reduces flash capacity by half, while STM8S208MBT6 delivers greater memory headroom and crypto support at the cost of I²C slave flexibility and vendor-specific toolchain lock-in.

Availability

UPD78F0515AGA(S)-8EU-AT is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and home appliance control boards requiring stable component supply across multi-year production cycles.

Supply support for UPD78F0515AGA(S)-8EU-AT 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 UPD78F0515AGA(S)-8EU-AT belongs to the 78K0/KC2 product line, designed specifically for cost-sensitive, high-reliability embedded control applications demanding deterministic real-time behavior and long-term supply stability in industrial environments.

FAQ

What is the maximum operating frequency of the UPD78F0515AGA(S)-8EU-AT?

The UPD78F0515AGA(S)-8EU-AT supports a maximum system clock frequency of 20 MHz when using an external crystal oscillator (1–20 MHz range) or 16 MHz with its internal high-speed oscillator. This yields a 50 ns minimum instruction cycle time for time-critical interrupt service routines and real-time control loops. The device's AC characteristics-including setup/hold times and peripheral clock limits-are fully specified at these frequencies in the Renesas Hardware User's Manual Rev.4.01.

Does the UPD78F0515AGA(S)-8EU-AT include hardware support for EEPROM emulation?

Yes, the UPD78F0515AGA(S)-8EU-AT supports EEPROM emulation using its on-chip flash memory with Renesas' official "EEPROM Emulation Library Type01" (Document No. U18275E). This library implements wear-leveling and atomic write operations to emulate 2 KB of EEPROM functionality with 100,000 write cycles and guaranteed data retention for 20 years at 85°C. The implementation requires no external components and is validated for use in industrial temperature-grade applications.

What debug interface does the UPD78F0515AGA(S)-8EU-AT support?

The UPD78F0515AGA(S)-8EU-AT supports single-wire debug (SWD) via dedicated pins (RES# and TMS), compatible with Renesas' QB-MINI2 and E2 emulator tools. This interface enables non-intrusive real-time tracing, hardware breakpoints, and memory inspection without halting peripheral operation. Debug access remains functional even in low-power STOP mode, allowing full visibility during ultra-low-power sensor node operation.

Is the UPD78F0515AGA(S)-8EU-AT qualified for automotive applications?

No, the UPD78F0515AGA(S)-8EU-AT is rated for industrial temperature range (−40°C to +85°C) and classified as a "Standard" quality grade device per Renesas documentation. It is intended for computers, office equipment, industrial robots, and home appliances-not automotive or safety-critical systems. For automotive use, Renesas recommends the RL78/F1x or RH850 families, which carry AEC-Q100 qualification and "High Quality" grade certification.

What packaging and RoHS compliance status does the UPD78F0515AGA(S)-8EU-AT have?

The UPD78F0515AGA(S)-8EU-AT is supplied in an 80-pin LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad and is fully RoHS-compliant per EU Directive 2011/65/EU. Lead-free soldering profiles follow J-STD-020D, and moisture sensitivity level is MSL3. Full environmental compliance documentation-including substance declarations and REACH SVHC statements-is available through Renesas' official product page and Aetrix Electronics' material compliance portal.