Renesas UPD78F1518AGF(R)-GAT-AX

Overview

UPD78F1518AGF(R)-GAT-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/LH3 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 HMI and sensor-based systems.

For engineers reviewing the UPD78F1518AGF(R)-GAT-AX datasheet, UPD78F1518AGF(R)-GAT-AX pinout, UPD78F1518AGF(R)-GAT-AX application, or UPD78F1518AGF(R)-GAT-AX equivalent, key selection factors include its 100-pin LQFP package, 2.7–5.5 V supply range, built-in watchdog timer, and support for low-power stop modes with wake-up via external interrupt or RTC.

Technical Context

The UPD78F1518AGF(R)-GAT-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory organization, and instruction set compatible with earlier 78K0 devices. It integrates a 3-channel 16-bit timer array unit (TAU), real-time clock (RTC) with calendar function, and programmable voltage detector (PVD) for brown-out detection.

Peripheral integration includes a 10-bit ADC with sample-and-hold and hardware-triggered conversion, dual I²C interfaces supporting master/slave mode, and three serial interface modules (CSI) configurable as SPI or UART. All peripherals are managed via dedicated SFRs and support interrupt-driven operation with priority levels.

Key Specifications

Pinout & Package

UPD78F1518AGF(R)-GAT-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 1.3.3 and 2.1.3 for 78K0R/LH3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F1518AGF(R)-GAT-AX, the R5F10PLGCLFB#30 offers higher code density and newer toolchain support but sacrifices analog integration and RTC functionality; the UPD78F1516AGF(R)-GAT-AX provides identical timing, I/O, and low-power behavior with 32 KB less Flash-ideal for validated designs undergoing minor feature reduction.

Availability

UPD78F1518AGF(R)-GAT-AX is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor control subsystems, and building automation controllers requiring stable component supply and long-term manufacturability.

Supply support for UPD78F1518AGF(R)-GAT-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/LH3 product line, including UPD78F1518AGF(R)-GAT-AX, was designed for cost-effective, high-integration embedded control in industrial equipment where reliability, analog peripheral richness, and legacy software compatibility are critical.

FAQ

What is the maximum operating frequency of the UPD78F1518AGF(R)-GAT-AX?

The UPD78F1518AGF(R)-GAT-AX operates at a maximum frequency of 20 MHz when supplied with 2.7–5.5 V. This frequency is achieved using the on-chip high-speed system clock oscillator (HOCO) or an external crystal up to 20 MHz. The CPU executes instructions at 0.9 DMIPS/MHz, delivering ~18 DMIPS performance. Timing-critical peripherals like the TAU and ADC remain fully functional at this rate.

Does the UPD78F1518AGF(R)-GAT-AX include a hardware real-time clock (RTC)?

Yes, the UPD78F1518AGF(R)-GAT-AX integrates a dedicated hardware RTC with calendar function (year/month/day/hour/minute/second), leap-year correction, and alarm interrupt capability. It operates independently from the main CPU clock and can run from a 32.768 kHz sub-clock (SLOC) even in deep stop mode. The RTC registers are accessible via SFRs and retain time during low-power states.

How many analog-to-digital converter (ADC) channels does the UPD78F1518AGF(R)-GAT-AX support?

The UPD78F1518AGF(R)-GAT-AX supports 24 analog input channels for its 10-bit successive-approximation ADC. These channels are mapped across ports P5 (AN0–AN7), P6 (AN8–AN9), P7 (AN10–AN17), and P8 (AN18–AN23). The ADC includes sample-and-hold, hardware trigger sources (TAU, INT), and scan mode for automatic sequential conversion.

What package type and pin count does the UPD78F1518AGF(R)-GAT-AX use?

The UPD78F1518AGF(R)-GAT-AX uses a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with an exposed thermal pad. This package is RoHS-compliant and supports standard reflow soldering profiles. Pin assignments follow the 78K0R/LH3 specification in Renesas' Hardware User's Manual Rev.5.01, including dedicated power, I/O, and peripheral signal groups.

Is the UPD78F1518AGF(R)-GAT-AX pin-compatible with other members of the 78K0R/LH3 family?

Yes, the UPD78F1518AGF(R)-GAT-AX shares identical pinout and electrical characteristics with other 100-pin 78K0R/LH3 devices, including UPD78F1516AGF(R)-GAT-AX and UPD78F1508AGF(R)-GAT-AX. Differences are limited to Flash size (128 KB vs 96 KB vs 64 KB) and minor SFR configurations - enabling PCB reuse across firmware variants without layout changes.