Renesas UPD78F1503AGC(R)-UEU-AX

Overview

UPD78F1503AGC(R)-UEU-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/LG3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and integrated 10-bit ADC with 24 channels. It operates at up to 20 MHz, supports 5V operation, and includes UART, I²C, and CSI serial interfaces. It is used in industrial control panels requiring deterministic real-time response and analog sensor interfacing.

For engineers reviewing the UPD78F1503AGC(R)-UEU-AX datasheet, UPD78F1503AGC(R)-UEU-AX pinout, UPD78F1503AGC(R)-UEU-AX application, or UPD78F1503AGC(R)-UEU-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), ADC sampling rate (up to 1.25 MSPS), and support for hardware watchdog timer with independent clock source - all critical for embedded control firmware validation and BOM resilience planning.

Technical Context

The UPD78F1503AGC(R)-UEU-AX implements the 78K0R CPU core with 16-bit ALU and 24-bit address space, enabling direct access to full 128 KB Flash without banking. Its peripheral set includes a 16-bit multifunction timer array (TAU) with capture/compare and PWM output, plus a dedicated 16-bit reload timer (RTU) for precise interval timing.

It integrates a programmable voltage regulator (REGC pin) supporting internal 3.3 V or 5 V core supply selection, and features dual reset sources: power-on reset (POR) and low-voltage detection (LVD) with configurable threshold (2.7 V or 3.9 V), ensuring robust startup and brown-out recovery in variable industrial power environments.

Key Specifications

Pinout & Package

UPD78F1503AGC(R)-UEU-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad, rated for industrial temperature range (−40°C to +85°C). Pin functions are defined per Renesas Hardware User's Manual Rev.5.01 (Jun 2011), Section 2.1.2 (78K0R/LG3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit microcontroller applications.

Compared with UPD78F1503AGC(R)-UEU-AX, the R5F10PLGCLFB#30 offers superior low-power performance but reduced analog integration and Flash capacity, while the UPD78F1504AGC(R)-UEU-AX provides identical functionality with doubled Flash - making it a seamless drop-in upgrade for firmware scalability.

Availability

UPD78F1503AGC(R)-UEU-AX is available at Aetrix Electronics and suitable for industrial motor control, building automation panels, factory floor HMI terminals, and smart power meter interfaces requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1503AGC(R)-UEU-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 infrastructure markets.

The 78K0R/LG3 product line - including UPD78F1503AGC(R)-UEU-AX - was designed for cost-sensitive, high-reliability industrial control applications requiring integrated analog peripherals, deterministic real-time response, and long-term supply stability.

FAQ

What is the maximum operating frequency of the UPD78F1503AGC(R)-UEU-AX?

The UPD78F1503AGC(R)-UEU-AX supports a maximum system clock frequency of 20 MHz when using the internal high-speed oscillator. This yields a 12.5 ns instruction cycle time, enabling sub-microsecond interrupt latency and tight real-time control loop execution. External crystal or ceramic resonator configurations can also achieve 20 MHz with appropriate load capacitance matching per the Renesas Hardware User's Manual Rev.5.01.

Does the UPD78F1503AGC(R)-UEU-AX include on-chip debug capability?

Yes, the UPD78F1503AGC(R)-UEU-AX supports full on-chip debugging via the single-wire debug interface compatible with Renesas QB-MINI2 and ID78K0R-QB tools. This includes real-time variable watch, hardware breakpoints, and non-intrusive program flow tracing without requiring dedicated debug pins - all accessible through the standard SWD pin (P10/DEBUG).

What ADC resolution and channel count does the UPD78F1503AGC(R)-UEU-AX provide?

The UPD78F1503AGC(R)-UEU-AX integrates a 10-bit successive approximation register (SAR) ADC with 24 selectable input channels. It achieves a maximum sampling rate of 1.25 million samples per second (MSPS) and supports simultaneous sampling on multiple channels via hardware trigger synchronization - essential for multi-axis motor current sensing.

Is the UPD78F1503AGC(R)-UEU-AX pin-compatible with other members of the 78K0R/LG3 family?

Yes, the UPD78F1503AGC(R)-UEU-AX shares identical pin configuration and electrical characteristics with other 100-pin LQFP variants in the 78K0R/LG3 family, including UPD78F1504AGC(R)-UEU-AX and UPD78F1505AGC(R)-UEU-AX. This allows direct PCB reuse when upgrading Flash size or selecting different memory/feature combinations within the same package.

What industrial temperature range is specified for the UPD78F1503AGC(R)-UEU-AX?

The UPD78F1503AGC(R)-UEU-AX is qualified for operation across the industrial temperature range of −40°C to +85°C. This rating is validated per Renesas' Standard quality grade and applies to all DC and AC electrical specifications in the official datasheet - ensuring reliable performance in uncontrolled factory or outdoor enclosure environments.