Renesas UPD78F1178AGF(S)-GAT-AX

Overview

UPD78F1178AGF(S)-GAT-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KH3 family, featuring 256 KB on-chip Flash memory, 16 KB RAM, and integrated peripherals including 12-bit ADC (16 channels), 8-bit D/A converter, 16-bit timer arrays (TAU), and UART/SPI/I²C interfaces. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and targets embedded control in industrial sensors and motor drive subsystems.

For engineers reviewing the UPD78F1178AGF(S)-GAT-AX datasheet, UPD78F1178AGF(S)-GAT-AX pinout, UPD78F1178AGF(S)-GAT-AX application, or UPD78F1178AGF(S)-GAT-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), operating temperature range (−40°C to +85°C), and support for on-chip debug via single-wire interface - all critical for cost-sensitive, long-lifecycle industrial firmware deployments.

Technical Context

The UPD78F1178AGF(S)-GAT-AX implements the 78K0R CPU core with Harvard architecture, supporting 16-bit data paths and 24-bit addressing. It integrates a 32-bit programmable watchdog timer, low-voltage detection circuit (LVD) with 4 selectable thresholds, and power-saving modes including HALT and STOP with wake-up via external interrupt or RTC alarm.

Its peripheral set includes two independent 16-bit timer arrays (TAU0 and TAU1) each with 8 channels, supporting PWM generation, input capture, and interval timing; a 12-bit successive-approximation ADC with sample-and-hold and hardware-triggered conversion sequencing; and dual serial interfaces (UART0/UART1) with automatic baud-rate detection and LIN bus support.

Key Specifications

Pinout & Package

UPD78F1178AGF(S)-GAT-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment supports full I/O multiplexing across 16 ports (P0–P16), dedicated analog inputs (AVREF0/AVREF1, AVSS), and power domains (EVDD0/EVSS0 for analog, VDD/VSS for digital).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10PLGKSP#V0 and MB9BF516RPMC-G-SNE2, the UPD78F1178AGF(S)-GAT-AX delivers superior analog integration and deterministic real-time timing for fixed-function industrial control - without requiring architectural migration or PCB redesign.

Availability

UPD78F1178AGF(S)-GAT-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, brushless DC motor controllers, and programmable logic controller I/O modules requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1178AGF(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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The UPD78F1178AGF(S)-GAT-AX belongs to the 78K0R/KH3 product line, designed specifically for cost-optimized, high-reliability embedded control in resource-constrained industrial equipment where Flash endurance, analog integration, and debug simplicity are critical.

FAQ

What is the maximum operating frequency of the UPD78F1178AGF(S)-GAT-AX?

The UPD78F1178AGF(S)-GAT-AX supports a maximum system clock frequency of 20 MHz. This is achieved using either the internal high-speed oscillator (with PLL multiplication) or an external crystal/resonator up to 20 MHz. At this speed, the 78K0R core executes instructions at approximately 10 million instructions per second (MIPS), sufficient for real-time motor control loops and sensor data processing without external acceleration.

Does the UPD78F1178AGF(S)-GAT-AX include on-chip debug capability?

Yes, the UPD78F1178AGF(S)-GAT-AX features a single-wire debug (SWD) interface compliant with Renesas' standard on-chip debugging protocol. This allows full read/write access to registers and memory, hardware breakpoints, and real-time trace without requiring a dedicated JTAG header. The UPD78F1178AGF(S)-GAT-AX debug interface is supported by Renesas' CS+ IDE and compatible third-party tools like IAR Embedded Workbench.

What analog peripherals are integrated into the UPD78F1178AGF(S)-GAT-AX?

UPD78F1178AGF(S)-GAT-AX integrates a 12-bit successive-approximation ADC with 16 input channels, an 8-bit D/A converter with 2 output channels, a programmable voltage comparator, and dual analog reference inputs (AVREF0 and AVREF1). These peripherals share a common analog power domain (EVDD0/EVSS0) and support hardware-triggered conversion sequences - enabling synchronized acquisition across multiple sensors without CPU intervention.

Is the UPD78F1178AGF(S)-GAT-AX qualified for industrial temperature operation?

Yes, the UPD78F1178AGF(S)-GAT-AX is rated for operation from −40°C to +85°C and classified under Renesas' "Standard" quality grade, explicitly approved for industrial robots, machine tools, and factory automation equipment. Its electrical specifications - including Flash write endurance, ADC accuracy, and oscillator stability - are guaranteed across this full temperature range per Renesas datasheet U18432EJ5V0UD.

What package type does the UPD78F1178AGF(S)-GAT-AX use?

The UPD78F1178AGF(S)-GAT-AX is supplied in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with an exposed thermal pad. This package supports reflow soldering per JEDEC J-STD-020 and provides adequate thermal dissipation for continuous operation at full clock speed and ambient temperatures up to +85°C. Pin compatibility is maintained across the 78F117x series within the same LQFP-100 footprint.