Renesas UPD78F1178AGF(R)-GAT-AX

Overview

UPD78F1178AGF(R)-GAT-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KH3 family, designed for embedded control in industrial and consumer systems. It features 256 KB on-chip Flash memory, 16 KB RAM, a 32 MHz max CPU clock, 10-bit ADC with 24 channels, and operates from 2.7–5.5 V supply. It supports CAN 2.0B interface and is used in motor control, HVAC systems, and appliance main controllers.

For engineers reviewing the UPD78F1178AGF(R)-GAT-AX datasheet, UPD78F1178AGF(R)-GAT-AX pinout, UPD78F1178AGF(R)-GAT-AX application, or UPD78F1178AGF(R)-GAT-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), CAN bus timing compliance, ADC sampling rate (1.25 MSPS), and industrial-grade temperature range (−40°C to +85°C).

Technical Context

The UPD78F1178AGF(R)-GAT-AX implements the 78K0R CPU core with 16-bit architecture and Harvard memory organization. It integrates a programmable 16-bit timer array unit (TAU), watchdog timer (WDT), real-time clock (RTC), and on-chip debug support via single-wire interface.

It includes dual voltage regulators (REGC pin controls internal 3.3 V regulator), supports boot ROM-based self-programming, and uses SuperFlash® technology for reliable Flash programming. The device supports multiple low-power modes including HALT and STOP, with wake-up via external interrupt or RTC alarm.

Key Specifications

Pinout & Package

UPD78F1178AGF(R)-GAT-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Renesas User's Manual U18432EJ5V0UD, Chapter 2.

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-S2, the UPD78F1178AGF(R)-GAT-AX delivers optimal balance of CAN integration, Flash endurance, and industrial temperature support in a mature, pin-stable 100-pin LQFP package - minimizing redesign risk while meeting legacy 78K0R codebase compatibility needs.

Availability

UPD78F1178AGF(R)-GAT-AX is available at Aetrix Electronics and suitable for industrial motor control, smart HVAC systems, and home appliance main control units requiring stable component supply and long-term lifecycle assurance.

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

The UPD78F1178AGF(R)-GAT-AX belongs to the 78K0R/KH3 product line, engineered for cost-effective, high-reliability embedded control in resource-constrained industrial and consumer equipment where Flash endurance, analog integration, and CAN connectivity are essential.

FAQ

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

The UPD78F1178AGF(R)-GAT-AX supports a maximum CPU clock frequency of 32 MHz, achieved using an external crystal oscillator or on-chip PLL. This allows instruction execution at up to 31.25 ns per cycle, enabling fast real-time control loops. The device maintains timing integrity across its full −40°C to +85°C operating range, as verified in Renesas Electrical Characteristics tables.

Does the UPD78F1178AGF(R)-GAT-AX include a CAN controller?

Yes, the UPD78F1178AGF(R)-GAT-AX integrates a full CAN 2.0B-compliant controller supporting both standard and extended frames. It provides 32 message objects, hardware FIFO buffering, and automatic retransmission - eliminating software overhead for CAN protocol handling. This makes the UPD78F1178AGF(R)-GAT-AX suitable for industrial networks without requiring external CAN controllers.

What is the Flash memory endurance specification for the UPD78F1178AGF(R)-GAT-AX?

The UPD78F1178AGF(R)-GAT-AX uses SuperFlash® technology to achieve 100,000 write/erase cycles in its 256 KB on-chip Flash memory. This endurance rating is specified under standard operating conditions (25°C, VDD = 5.0 V) and supports field firmware updates and data logging applications. Each sector can be erased independently, enabling efficient wear leveling in embedded applications.

What package type and pin count does the UPD78F1178AGF(R)-GAT-AX use?

The UPD78F1178AGF(R)-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 is RoHS-compliant and optimized for industrial PCB assembly. Pin assignments match the 78K0R/KH3 family standard layout, ensuring compatibility with existing 78F117x design footprints and routing guidelines.

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

Yes, the UPD78F1178AGF(R)-GAT-AX is rated for operation from −40°C to +85°C and classified as a "Standard" quality grade device per Renesas documentation. It is intended for industrial equipment, office automation, and consumer appliances - not for automotive, medical life-support, or aerospace applications unless explicitly validated and approved by Renesas.