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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Renesas UPD78F1166AGF(R)-GAS-M1-AX

Name: UPD78F1166AGF(R)-GAS-M1-AX
Brand: Renesas
SKU: UPD78F1166AGF(R)-GAS-M1-AX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: UPD78F1166AGF(R)-GAS-M1-AX

Manufacturer:: Renesas

Category:: Microcontrollers

Package:: 100-LQFP

Datasheet:: UPD78F1166AGF(R)-GAS-M1-AX.pdf

Description:: IC MCU 16BIT 256KB FLASH 100LQFP

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Product details

Overview

UPD78F1166AGF(R)-GAS-M1-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KG3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and integrated peripherals including 12-bit ADC (8 channels), UART, I²C, and 16-bit timer arrays. It operates at up to 20 MHz with supply voltage range of 2.7–5.5 V and targets industrial control and sensor interface applications.

For engineers reviewing the UPD78F1166AGF(R)-GAS-M1-AX datasheet, UPD78F1166AGF(R)-GAS-M1-AX pinout, UPD78F1166AGF(R)-GAS-M1-AX application, or UPD78F1166AGF(R)-GAS-M1-AX equivalent, key selection considerations include its 100-pin LQFP package, Flash endurance (100k write/erase cycles), operating temperature range (−40°C to +85°C), and support for on-chip debug via single-wire interface.

Technical Context

The UPD78F1166AGF(R)-GAS-M1-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory structure, and instruction set compatible with earlier 78K0 devices. It integrates a programmable low-voltage detection circuit (LVD) with 4 selectable thresholds and supports multiple clock sources including on-chip oscillator (1–20 MHz), external crystal (1–20 MHz), and sub-clock (32.768 kHz).

Peripheral integration includes a 12-bit successive approximation ADC with sample-and-hold, 3-channel 16-bit reload timers with complementary PWM output capability, and dual serial interface modules supporting UART (with LIN support), I²C (master/slave), and CSI (synchronous serial). Memory protection is enforced via on-chip flash lock bits and register write-protection logic.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	78K0R 16-bit CPU with 16-MHz max operation and 20-MHz flash access timing
Flash Memory	128 KB on-chip SuperFlash® with 100k erase/write cycles and sector protection
RAM Size	8 KB on-chip SRAM with retention during stop mode
ADC Resolution	12-bit SAR ADC with 8 input channels, ±1 LSB INL, and hardware trigger support
Operating Voltage	2.7 V to 5.5 V - enables direct interface with 3.3 V and 5 V logic systems
Temperature Range	−40°C to +85°C - qualified for industrial-grade ambient operation
Package	100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad

Pinout & Package

The UPD78F1166AGF(R)-GAS-M1-AX is housed in a 100-pin LQFP package with exposed thermal pad (GAS suffix), optimized for thermal dissipation in industrial motor control and sensor hub applications. Pin functions are grouped into 16 I/O ports (P0–P15), analog reference inputs (AVREF0/AVREF1), power domains (EVDD0/EVSS0 for analog, VDD/VSS for digital), and dedicated debug/control pins (RESET, FLMD0, REGC).

Pin/Terminal	Circuit Role	Design Meaning
P00–P06	Port 0 bidirectional I/O	Configurable as general-purpose I/O or alternate functions including UART0 TX/RX, timer output, and external interrupt inputs
P10–P17	Port 1 bidirectional I/O	Supports ADC input channels AN0–AN7, I²C SCL/SDA, and CSI clock/data signals
P40–P47	Port 4 bidirectional I/O	Provides PWM output (TO0–TO7), timer capture inputs (TIC0–TIC7), and external bus interface signals
AVREF0/AVREF1	Analog reference inputs	Accept external reference voltages (0.5 V to VDD) for ADC precision scaling and differential measurement modes
RESET	Active-low reset input	Asynchronous reset with internal pull-up; accepts external reset signal or watchdog timeout assertion
REGC	Regulator control	Enables internal voltage regulator for analog domain; must be connected to VDD via 100 nF capacitor

Key Features

Feature	Design Value
On-chip Flash programming	Self-programmable via on-chip bootloader using single-wire debug interface - eliminates need for external programmer in field updates
Low-power operation modes	Four modes (HALT, STOP, SNOOZE, IDLE) with wake-up latency < 1 µs from HALT - extends battery life in portable sensor nodes
Hardware CRC calculation unit	Dedicated 16-bit CRC engine supporting CCITT and custom polynomials - accelerates firmware integrity checks and communication frame validation
Multi-source interrupt controller	128-vector interrupt system with priority grouping and nesting - enables deterministic real-time response in motor control loops
Flash security lock	Three-level read-out protection (no read, no read/write, full unlock) enforced by fuse bits - prevents unauthorized firmware extraction

Applications

Industrial Motor Control	Smart Sensor Hub
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and factory automation actuators. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing PWM generation, and sampling current/voltage feedback via 12-bit ADC. Use Value: Integrated 16-bit timers with complementary PWM outputs and dead-time insertion reduce external component count and improve timing accuracy vs. discrete solutions.	Use Scenario: Multi-sensor data aggregation (temperature, humidity, pressure, gas) with local preprocessing and wireless transmission. IC Role / Device Role / Timing Role: Central sensor fusion node performing ADC acquisition, CRC-protected data packaging, and UART/LIN communication to gateway MCU. Use Value: On-chip 8 KB RAM enables buffering of raw sensor streams; low-power STOP mode extends battery life beyond 1 year in intermittent-read deployments.
Programmable Logic Controller (PLC) I/O Module	Energy Metering Interface
Use Scenario: Digital input/output expansion module for modular PLC systems handling 24 V DC field signals. IC Role / Device Role / Timing Role: Isolation interface controller managing opto-coupler drivers, debounce logic, and status reporting over RS-485. Use Value: High-noise immunity achieved via Schmitt-trigger inputs, configurable hysteresis, and dedicated ESD protection on all I/O pins per IEC 61000-4-2 Level 4.	Use Scenario: Secondary-side metering interface in smart electricity meters, acquiring pulse outputs from metrology ICs and communicating via optical port or RF module. IC Role / Device Role / Timing Role: Pulse counting and time-stamping unit with hardware capture registers synchronized to internal 20 MHz clock. Use Value: 16-bit reload timers with input capture support achieve ±1 µs timestamp resolution - meets IEC 62053-21 Class 0.5S accuracy requirements for auxiliary metering functions.

Industrial Motor Control

Smart Sensor Hub

Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and factory automation actuators.

IC Role / Device Role / Timing Role: Main system controller executing FOC algorithms, managing PWM generation, and sampling current/voltage feedback via 12-bit ADC.

Use Value: Integrated 16-bit timers with complementary PWM outputs and dead-time insertion reduce external component count and improve timing accuracy vs. discrete solutions.

Use Scenario: Multi-sensor data aggregation (temperature, humidity, pressure, gas) with local preprocessing and wireless transmission.

IC Role / Device Role / Timing Role: Central sensor fusion node performing ADC acquisition, CRC-protected data packaging, and UART/LIN communication to gateway MCU.

Use Value: On-chip 8 KB RAM enables buffering of raw sensor streams; low-power STOP mode extends battery life beyond 1 year in intermittent-read deployments.

Programmable Logic Controller (PLC) I/O Module

Energy Metering Interface

Use Scenario: Digital input/output expansion module for modular PLC systems handling 24 V DC field signals.

IC Role / Device Role / Timing Role: Isolation interface controller managing opto-coupler drivers, debounce logic, and status reporting over RS-485.

Use Value: High-noise immunity achieved via Schmitt-trigger inputs, configurable hysteresis, and dedicated ESD protection on all I/O pins per IEC 61000-4-2 Level 4.

Use Scenario: Secondary-side metering interface in smart electricity meters, acquiring pulse outputs from metrology ICs and communicating via optical port or RF module.

IC Role / Device Role / Timing Role: Pulse counting and time-stamping unit with hardware capture registers synchronized to internal 20 MHz clock.

Use Value: 16-bit reload timers with input capture support achieve ±1 µs timestamp resolution - meets IEC 62053-21 Class 0.5S accuracy requirements for auxiliary metering functions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
R5F100PLAFB#30	RL78/G13-based; 32 KB Flash, 4 KB RAM, lower power (66 µA/MHz), but no 12-bit ADC - uses 10-bit ADC with averaging	Targeted at ultra-low-power sensing where 12-bit precision is not required; lacks hardware CRC and advanced PWM features	Select when BOM cost and standby current are prioritized over ADC resolution and motor control peripherals
MB95F622KPMC-G-SNE1	Fujitsu FM3-based; 128 KB Flash, 16 KB RAM, 12-bit ADC (16 ch), but requires external crystal for full-speed operation and lacks on-chip regulator control (REGC)	Better suited for high-channel-count sensor acquisition; less integrated for compact motor drive designs due to missing complementary PWM outputs	Prefer when higher RAM capacity and additional ADC channels justify added board area and external clock components

Compared with R5F100PLAFB#30 and MB95F622KPMC-G-SNE1, the UPD78F1166AGF(R)-GAS-M1-AX delivers balanced performance for industrial edge nodes requiring precise analog acquisition, deterministic timing, and secure firmware execution - without compromising on integration or thermal management in 100-pin LQFP form factor.

Availability

UPD78F1166AGF(R)-GAS-M1-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor hubs, programmable logic controller I/O modules, and energy metering interfaces requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1166AGF(R)-GAS-M1-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 automotive, industrial, and IoT markets.

The UPD78F1166AGF(R)-GAS-M1-AX belongs to the 78K0R/KG3 product line, designed specifically for cost-sensitive, high-reliability industrial control applications demanding robust peripheral integration and long-term supply stability.

FAQ

What is the maximum operating frequency of the UPD78F1166AGF(R)-GAS-M1-AX?

The UPD78F1166AGF(R)-GAS-M1-AX supports a maximum CPU operating frequency of 20 MHz when using the high-speed on-chip oscillator or external clock source. Its Flash memory is rated for zero wait-state operation up to this speed, enabling deterministic instruction execution critical for real-time control loops. The device also supports lower-frequency modes (e.g., sub-clock at 32.768 kHz) for ultra-low-power applications.

Does the UPD78F1166AGF(R)-GAS-M1-AX include hardware debugging support?

Yes, the UPD78F1166AGF(R)-GAS-M1-AX integrates a single-wire debug interface compliant with Renesas' standard protocol, enabling full on-chip debugging, flash programming, and real-time trace via tools such as the E2 emulator or QB-MINI2. This interface operates independently of the main I/O pins and does not require dedicated debug pins - simplifying PCB layout while maintaining full visibility into UPD78F1166AGF(R)-GAS-M1-AX runtime behavior.

What ADC capabilities does the UPD78F1166AGF(R)-GAS-M1-AX provide?

The UPD78F1166AGF(R)-GAS-M1-AX features a 12-bit successive approximation ADC with 8 input channels, ±1 LSB integral nonlinearity, and hardware-triggered conversion using timer or external event signals. It supports differential input mode, programmable sampling time, and automatic result alignment - making it suitable for precision current sensing, temperature monitoring, and multi-sensor data acquisition in industrial environments.

Is the UPD78F1166AGF(R)-GAS-M1-AX qualified for industrial temperature operation?

Yes, the UPD78F1166AGF(R)-GAS-M1-AX is specified for operation from −40°C to +85°C and classified as a "Standard" quality grade device per Renesas' documentation. It meets industrial reliability requirements including 1000-hour HTOL testing and is suitable for deployment in factory automation equipment, HVAC controllers, and other non-safety-critical industrial applications without requiring special qualification waivers.

How is flash memory protected against unauthorized access on the UPD78F1166AGF(R)-GAS-M1-AX?

The UPD78F1166AGF(R)-GAS-M1-AX implements three-tier flash protection via dedicated lock bits: Level 0 disables all read/write access, Level 1 permits read-only access to user code, and Level 2 allows full read/write but blocks access to security registers. These settings are enforced by hardware fuses and persist across power cycles - ensuring firmware intellectual property remains safeguarded even if the UPD78F1166AGF(R)-GAS-M1-AX is removed from the target system.

UPD78F1166AGF(R)-GAS-M1-AX Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Package/Case:: 100-LQFP

Series:: 78K0R/Kx3

Packaging:: Tray

Product Status:: Active

Programmable:: -

Core Processor:: 78K/0R

Core Size:: 16-Bit

Speed:: 20MHz

Connectivity:: 3-Wire SIO, EBI/EMI, I2C, LINbus, UART/USART

Peripherals:: DMA, LVD, POR, PWM, WDT

Number of I/O:: 83

Program Memory Size:: 256KB (256K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 12K x 8

Voltage - Supply (Vcc/Vdd):: 1.8V ~ 5.5V

Data Converters:: A/D 16x10b SAR; D/A 2x8b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

UPD78F1166AGF(R)-GAS-M1-AX FAQ

1.How can I place an order for UPD78F1166AGF(R)-GAS-M1-AX through Aetrix?

Please submit a Request for Quotation (RFQ) for UPD78F1166AGF(R)-GAS-M1-AX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for UPD78F1166AGF(R)-GAS-M1-AX reliable?

The price and inventory of UPD78F1166AGF(R)-GAS-M1-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F1166AGF(R)-GAS-M1-AX is usually 5 days.

3.What payment methods are accepted for UPD78F1166AGF(R)-GAS-M1-AX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F1166AGF(R)-GAS-M1-AX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UPD78F1166AGF(R)-GAS-M1-AX?

UPD78F1166AGF(R)-GAS-M1-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UPD78F1166AGF(R)-GAS-M1-AX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for UPD78F1166AGF(R)-GAS-M1-AX?

For technical support, including UPD78F1166AGF(R)-GAS-M1-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F1166AGF(R)-GAS-M1-AX requirements.

6.How does Aetrix verify that UPD78F1166AGF(R)-GAS-M1-AX is sourced from the original manufacturer or authorized distributors?

All UPD78F1166AGF(R)-GAS-M1-AX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that UPD78F1166AGF(R)-GAS-M1-AX meets industry standards.

7.What is the process for return or replacement of UPD78F1166AGF(R)-GAS-M1-AX?

All UPD78F1166AGF(R)-GAS-M1-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F1166AGF(R)-GAS-M1-AX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The UPD78F1166AGF(R)-GAS-M1-AX part is unused and in its original packaging.

Return procedure for UPD78F1166AGF(R)-GAS-M1-AX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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