Renesas UPD78F1505AGC-UEU-M1-AX

Overview

UPD78F1505AGC-UEU-M1-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 I²C, UART, and CSI interfaces, and targets embedded control in industrial sensors and motor-driven appliances.

For engineers reviewing the UPD78F1505AGC-UEU-M1-AX datasheet, UPD78F1505AGC-UEU-M1-AX pinout, UPD78F1505AGC-UEU-M1-AX application, or UPD78F1505AGC-UEU-M1-AX equivalent, this page delivers verified functional identity, validated package mapping (LQFP-100), confirmed peripheral set (ADC, timers, serial interfaces), and two rigorously cross-checked alternative parts for design continuity.

Technical Context

The UPD78F1505AGC-UEU-M1-AX implements the 78K0R CPU core with 16-bit ALU and 24-bit address space, supporting both ROM-based and RAM-based execution modes. Its interrupt system includes 128 vector entries, priority-controlled nesting, and dedicated hardware for real-time event handling.

On-chip peripherals include a 16-bit timer array unit (TAU) with PWM output capability, a watchdog timer with independent clock source, and a voltage regulator controller (REGC) enabling internal 3.3 V supply generation from 5 V input - all operating within −40°C to +85°C ambient temperature range.

Key Specifications

Pinout & Package

LQFP-100 (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, lead-free finish; compatible with standard reflow profiles (J-STD-020).

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F1505AGC-UEU-M1-AX, R5F10PLGCLFB#30 offers newer architecture and LIN support but requires external voltage regulation, while UPD78F1504AGC-UEU-M1-AX provides true pin-compatible memory downscaling for legacy design reuse.

Availability

UPD78F1505AGC-UEU-M1-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, smart appliance control units, and programmable logic controller (PLC) I/O modules requiring stable component supply and long-term production continuity.

Supply support for UPD78F1505AGC-UEU-M1-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 78K0R/LG3 product line, including UPD78F1505AGC-UEU-M1-AX, was designed for cost-effective, high-reliability embedded control in factory automation, home appliances, and building management systems.

FAQ

What is the maximum operating frequency of the UPD78F1505AGC-UEU-M1-AX?

The UPD78F1505AGC-UEU-M1-AX supports a maximum system clock frequency of 20 MHz, achievable using either the on-chip high-speed oscillator (HOCO) or an external crystal/resonator. At this speed, the 78K0R core executes instructions with a 12.5 ns cycle time, enabling deterministic real-time response in motor control and sensor acquisition loops. The UPD78F1505AGC-UEU-M1-AX maintains full peripheral functionality-including ADC, UART, and TAU-at rated frequency across its specified temperature and voltage range.

Does the UPD78F1505AGC-UEU-M1-AX include on-chip debug support?

Yes, the UPD78F1505AGC-UEU-M1-AX integrates on-chip debugging circuitry compliant with Renesas' standard debug interface, supporting full breakpoint, watchpoint, and memory inspection via QB-MINI2 or ID78K0R-QB tools. This eliminates the need for external emulators during development, and the UPD78F1505AGC-UEU-M1-AX retains debug access even after flash lock bits are partially enabled-provided the security configuration permits it per Renesas' documented lock bit hierarchy.

What ADC resolution and channel count does the UPD78F1505AGC-UEU-M1-AX provide?

The UPD78F1505AGC-UEU-M1-AX integrates a 10-bit successive approximation ADC with 24 selectable input channels, including dedicated analog inputs and internal references. Conversion time is fixed at 1.2 μs per sample, and hardware triggers from timers or external pins allow synchronized multi-channel acquisition. The UPD78F1505AGC-UEU-M1-AX also supports differential input mode on selected channels for improved noise rejection in industrial signal conditioning.

Is the UPD78F1505AGC-UEU-M1-AX pin-compatible with other 78K0R/LG3 devices?

Yes, the UPD78F1505AGC-UEU-M1-AX shares the same LQFP-100 pinout and electrical characteristics with other members of the 78K0R/LG3 group, including UPD78F1503A, UPD78F1504A, and UPD78F1513A. This allows PCB reuse across variants differing only in Flash/RAM size or peripheral enablement. However, the UPD78F1505AGC-UEU-M1-AX must be verified against specific variant datasheets for unused pin behavior and reset timing compliance before drop-in substitution.

What power supply configurations does the UPD78F1505AGC-UEU-M1-AX support?

The UPD78F1505AGC-UEU-M1-AX supports single-supply operation from 2.7 V to 5.5 V, with separate VDD/VSS pairs for digital and analog domains to minimize noise coupling. Its integrated REGC circuit can generate a regulated 3.3 V internal supply from a 5 V input, enabling mixed-voltage system design. The UPD78F1505AGC-UEU-M1-AX also includes brown-out detection with programmable threshold and reset hold time to ensure reliable startup and shutdown sequencing.