Renesas UPD78F1508AGF(S)-GAT-AX

Overview

UPD78F1508AGF(S)-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 UPD78F1508AGF(S)-GAT-AX datasheet, UPD78F1508AGF(S)-GAT-AX pinout, UPD78F1508AGF(S)-GAT-AX application, or UPD78F1508AGF(S)-GAT-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), operating voltage range (2.7–5.5 V), and support for low-power STOP mode with RTC wake-up capability.

Technical Context

The UPD78F1508AGF(S)-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 programmable watchdog timer, 16-bit multifunction timer array (MTU), and dedicated LCD segment driver supporting up to 8 × 32 segments.

Its peripheral set includes a 10-bit ADC with sample-and-hold, dual I²C interfaces (one master/slave, one master-only), and three serial interface modules (CSI, UART, I²C) sharing common clock sources. The device uses SuperFlash® technology licensed from Silicon Storage Technology for reliable Flash programming.

Key Specifications

Pinout & Package

The UPD78F1508AGF(S)-GAT-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced heat dissipation in continuous industrial operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10PLGDFB#V0, UPD78F1508AGF(S)-GAT-AX delivers integrated LCD control and higher Flash endurance but consumes more active current; versus UPD78F1518AGF(S)-GAT-AX, it offers identical core functionality in a smaller footprint and lower cost where extended peripherals are unnecessary.

Availability

UPD78F1508AGF(S)-GAT-AX is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, programmable logic relays, and energy meter front-ends requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1508AGF(S)-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The 78K0R/LH3 product line - including UPD78F1508AGF(S)-GAT-AX - was designed for cost-sensitive, high-reliability embedded control applications demanding integrated analog peripherals, LCD support, and long-term Flash program/erase endurance.

FAQ

What is the maximum operating frequency of the UPD78F1508AGF(S)-GAT-AX?

The UPD78F1508AGF(S)-GAT-AX supports a maximum CPU clock frequency of 20 MHz when using the on-chip PLL with an external crystal oscillator. In high-speed mode without PLL, the maximum frequency is 16 MHz. This timing performance enables real-time response in motor control loops and fast ADC sampling sequences while maintaining deterministic interrupt latency.

Does the UPD78F1508AGF(S)-GAT-AX include an integrated LCD driver?

Yes, the UPD78F1508AGF(S)-GAT-AX integrates a full-featured LCD controller capable of driving up to 8 commons and 32 segments in static or multiplexed (1/2 to 1/8 duty) configurations. It provides built-in bias generation, frame frequency control, and segment/common output drivers - eliminating the need for external LCD driver ICs in basic alphanumeric or segmented displays.

What is the Flash memory endurance specification for the UPD78F1508AGF(S)-GAT-AX?

The UPD78F1508AGF(S)-GAT-AX specifies 100,000 write/erase cycles for its 128 KB on-chip Flash memory, with guaranteed 10-year data retention at +85 °C. This endurance rating supports field firmware updates throughout the product lifecycle and enables robust bootloader implementations with fail-safe update mechanisms.

Can the UPD78F1508AGF(S)-GAT-AX operate from a single 3.3 V supply?

Yes, the UPD78F1508AGF(S)-GAT-AX operates across a supply voltage range of 2.7 V to 5.5 V, making it fully compatible with standard 3.3 V systems. Its I/O pins are 5 V tolerant when configured as inputs, allowing direct interface with legacy 5 V peripherals without level-shifting circuitry - simplifying mixed-voltage board design.

How does the UPD78F1508AGF(S)-GAT-AX support low-power operation in battery-powered applications?

The UPD78F1508AGF(S)-GAT-AX achieves ultra-low standby current (≤1.2 μA) in STOP mode with RTC and 256-byte backup RAM active. It supports multiple wake-up sources including external interrupts, RTC alarm, and ADC conversion completion - enabling intelligent duty-cycling strategies that extend battery life in remote sensor nodes and portable instrumentation.