Renesas UPD78F1166AGF(S)-GAS-M1-AX

Overview

UPD78F1166AGF(S)-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 (16 channels), 16-bit timer arrays (TAU), UART, I²C, and CAN 2.0B controller. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and targets industrial control and automotive body electronics.

For engineers reviewing the UPD78F1166AGF(S)-GAS-M1-AX datasheet, UPD78F1166AGF(S)-GAS-M1-AX pinout, UPD78F1166AGF(S)-GAS-M1-AX application, or UPD78F1166AGF(S)-GAS-M1-AX equivalent, key selection considerations include its CAN interface capability, Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and compliance with AEC-Q100 Grade 2 for automotive use.

Technical Context

The UPD78F1166AGF(S)-GAS-M1-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory structure, and instruction set compatible with earlier 78K0 devices. It supports real-time interrupt handling via 22 interrupt sources, including priority-controlled vector interrupts and NMI.

Its on-chip peripheral suite includes a 12-bit successive-approximation ADC with sample-and-hold, dual 16-bit timer arrays supporting PWM generation and input capture, and a full CAN 2.0B controller with message objects and automatic retransmission-enabling robust communication in distributed vehicle networks.

Key Specifications

Pinout & Package

UPD78F1166AGF(S)-GAS-M1-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 across 16 I/O ports (P0–P15), analog inputs (AVREF0/1, AN0–AN15), CAN transceiver interface (CANRX/CANTX), reset (RESET), and power domains (VDD/EVDD0/EVDD1, VSS/EVSS0/EVSS1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10PLGKSP#V0 and SPC560B50L5, the UPD78F1166AGF(S)-GAS-M1-AX delivers optimal balance of CAN integration, AEC-Q100 qualification, and mature toolchain support for cost-constrained body electronics - without requiring safety certification overhead or external protocol ICs.

Availability

UPD78F1166AGF(S)-GAS-M1-AX is available at Aetrix Electronics and suitable for automotive body control units, industrial motor interfaces, smart power distribution modules, and OBD-II diagnostic tools requiring stable component supply and long-term lifecycle assurance.

Supply support for UPD78F1166AGF(S)-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(S)-GAS-M1-AX belongs to the 78K0R/KG3 product line, designed specifically for cost-effective, high-reliability automotive body electronics and industrial control applications requiring integrated CAN and mixed-signal capability.

FAQ

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

The UPD78F1166AGF(S)-GAS-M1-AX operates at a maximum CPU clock frequency of 20 MHz. This is achieved using an on-chip PLL that multiplies the input crystal or external clock source. The device supports multiple clock sources including main system clock (1–20 MHz), sub-clock (32.768 kHz), and internal high-speed oscillator (8 MHz), allowing flexible trade-offs between performance, power, and accuracy in the UPD78F1166AGF(S)-GAS-M1-AX design.

Does the UPD78F1166AGF(S)-GAS-M1-AX support in-system programming?

Yes, the UPD78F1166AGF(S)-GAS-M1-AX supports in-system programming (ISP) via its on-chip Flash memory and built-in boot ROM. Firmware updates can be performed through UART or CAN interfaces without removing the device from the target board. The UPD78F1166AGF(S)-GAS-M1-AX includes dedicated ISP command set and security lock bits to prevent unauthorized access during field updates.

What is the Flash endurance specification for the UPD78F1166AGF(S)-GAS-M1-AX?

The UPD78F1166AGF(S)-GAS-M1-AX guarantees 100,000 write/erase cycles for its 128 KB on-chip Flash memory, with data retention exceeding 10 years at +85°C. This endurance rating applies to all Flash sectors and is validated under JEDEC JESD22-A117 conditions. The UPD78F1166AGF(S)-GAS-M1-AX also supports wear-leveling algorithms in firmware to extend effective lifetime in frequent-update applications.

Is the UPD78F1166AGF(S)-GAS-M1-AX qualified for automotive applications?

Yes, the UPD78F1166AGF(S)-GAS-M1-AX is qualified per AEC-Q100 Grade 2 (−40°C to +105°C ambient, −40°C to +125°C junction), making it suitable for automotive body electronics, chassis, and infotainment subsystems. Its qualification includes stress testing for HTOL, TC, HAST, ESD (HBM ±2 kV), and EMC immunity. The UPD78F1166AGF(S)-GAS-M1-AX carries Renesas' automotive quality grade designation and is manufactured in IATF 16949-certified facilities.

How many CAN message objects does the UPD78F1166AGF(S)-GAS-M1-AX support?

The UPD78F1166AGF(S)-GAS-M1-AX integrates a full CAN 2.0B controller supporting 32 independent message objects, each configurable for transmission or reception with maskable identifier filtering. These objects enable efficient handling of multiple CAN IDs and data lengths without CPU intervention. The UPD78F1166AGF(S)-GAS-M1-AX uses dedicated RAM buffers and hardware arbitration to ensure deterministic response times in multi-node networks.