Renesas UPD78F1505AGC-UEU-AX

Overview

UPD78F1505AGC-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 I²C, UART, and CSI interfaces, and targets embedded control in industrial sensors and motor drive subsystems.

For engineers reviewing the UPD78F1505AGC-UEU-AX datasheet, UPD78F1505AGC-UEU-AX pinout, UPD78F1505AGC-UEU-AX application, or UPD78F1505AGC-UEU-AX equivalent, key selection criteria include its 100-pin LQFP package, 2.7–5.5 V operating voltage range, built-in watchdog timer, low-power stop modes, and support for in-circuit debugging via QB-MINI2.

Technical Context

The UPD78F1505AGC-UEU-AX implements the 78K0R CPU core with 16-bit ALU, 24-bit address space, and instruction set compatible with earlier 78K0 devices. It integrates a 10-bit successive-approximation ADC with sample-and-hold, programmable gain amplifier input options, and hardware-triggered conversion sequencing.

Peripheral integration includes three 16-bit timer arrays (TAU) with PWM output capability, two serial interface controllers supporting UART/CSI/I²C protocols, and a real-time clock with calendar function. The device uses Renesas' SuperFlash® technology for Flash endurance (>100k write/erase cycles) and data retention (>20 years at 85°C).

Key Specifications

Pinout & Package

UPD78F1505AGC-UEU-AX is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas Hardware User's Manual Rev.5.01 (Jun 2011), Section 1.3.2 and 2.1.2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10PLGCLFB#55, UPD78F1505AGC-UEU-AX delivers higher analog integration and calendar-aware timekeeping; versus UPD78F1513AGC-UEU-AX, it offers identical functionality at lower Flash density and cost-ideal for volume production where code size remains under 128 KB.

Availability

UPD78F1505AGC-UEU-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor control systems, and smart meter interface modules requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1505AGC-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 was designed for cost-effective, high-integration 16-bit control in resource-constrained embedded systems requiring robust analog interfaces and long-term supply stability.

FAQ

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

The UPD78F1505AGC-UEU-AX operates at a maximum system clock frequency of 20 MHz. This is achieved using an on-chip oscillator or external crystal up to 20 MHz, with internal PLL options enabling precise clock generation for peripheral modules like UART baud rate generation. The 20 MHz limit ensures timing compliance across all on-chip peripherals including ADC conversion cycles and TAU timer resolution.

Does the UPD78F1505AGC-UEU-AX include a hardware real-time clock (RTC)?

Yes, the UPD78F1505AGC-UEU-AX integrates a full-featured hardware RTC with calendar function (year/month/day/hour/minute/second), alarm interrupt, and periodic interrupt capability. It operates independently using a dedicated 32.768 kHz sub-clock input, allowing timekeeping during low-power stop modes. This RTC is documented in Section 11.5 of the Renesas 78K0R/Lx3 Hardware User's Manual Rev.5.01.

What debug tools are supported for the UPD78F1505AGC-UEU-AX?

The UPD78F1505AGC-UEU-AX is fully supported by Renesas' QB-MINI2 on-chip debug emulator with programming function. It also works with the QB-78K0RLX3 in-circuit emulator. These tools provide real-time debugging, flash programming, breakpoint setting, and register/memory inspection. Support is confirmed in Renesas document U18371E (QB-MINI2 User's Manual) and applies directly to the UPD78F1505AGC-UEU-AX as a member of the 78K0R/LG3 group.

Is the UPD78F1505AGC-UEU-AX RoHS compliant?

Yes, the UPD78F1505AGC-UEU-AX meets EU RoHS Directive requirements. Renesas confirms RoHS compliance for this part in its official product documentation and environmental reports. The "-AX" suffix denotes lead-free (Pb-free) packaging, and the LQFP package uses matte tin plating. Compliance is verified per Renesas' standard material declarations and aligns with Directive 2011/65/EU.

What is the Flash endurance specification for the UPD78F1505AGC-UEU-AX?

The UPD78F1505AGC-UEU-AX features Renesas SuperFlash® technology with guaranteed endurance of at least 100,000 write/erase cycles per block and data retention exceeding 20 years at 85°C. This specification is validated per Renesas' reliability testing standards and applies to both main program Flash and the dedicated 2 KB data flash area used for EEPROM emulation.