Renesas UPD78F1168AGC(R)-UEU-AX

Overview

UPD78F1168AGC(R)-UEU-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KG3 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, 32-bit timer, watchdog timer, 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 automation and motor drive systems.

For engineers reviewing the UPD78F1168AGC(R)-UEU-AX datasheet, UPD78F1168AGC(R)-UEU-AX pinout, UPD78F1168AGC(R)-UEU-AX application, or UPD78F1168AGC(R)-UEU-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating temperature range (−40°C to +85°C), and support for on-chip debug via single-wire interface - all critical for long-lifecycle industrial firmware deployment.

Technical Context

The UPD78F1168AGC(R)-UEU-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory structure, and instruction set compatible with earlier 78K0 series. It integrates a 32-bit programmable timer (TPM), real-time clock (RTC) with calendar function, and dual voltage regulators supporting internal 3.3 V and external I/O 5 V operation.

Its peripheral set includes three 16-bit reload timers (TMRh), two serial array units (SAU) configurable as UART/SPI/I²C, and a 12-bit A/D converter with sample-and-hold and hardware trigger synchronization - enabling precise analog acquisition in closed-loop motor control.

Key Specifications

Pinout & Package

The UPD78F1168AGC(R)-UEU-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 motor control applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10PLGJSP#V0 and MB9BF526KPMC-G-S2, the UPD78F1168AGC(R)-UEU-AX delivers optimal balance of analog integration, 5 V I/O tolerance, and industrial temperature resilience - making it uniquely suited for legacy-compatible upgrades in motor control and metering where mixed-voltage interfacing and long-term Flash reliability are design constraints.

Availability

UPD78F1168AGC(R)-UEU-AX is available at Aetrix Electronics and suitable for industrial PLC I/O modules, motor drive control boards, and smart energy meters requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1168AGC(R)-UEU-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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for industrial and automotive markets.

The 78K0R/KG3 product line was designed specifically for cost-effective, high-reliability embedded control in industrial equipment - emphasizing analog integration, Flash endurance, and robust operation across extended temperature ranges.

FAQ

What is the maximum operating frequency of the UPD78F1168AGC(R)-UEU-AX?

The UPD78F1168AGC(R)-UEU-AX operates at a maximum CPU clock frequency of 20 MHz, delivering 1.25 DMIPS/MHz performance. Its internal PLL allows flexible clock generation from external crystal or ceramic resonator inputs, and the device supports multiple clock sources including main oscillator, sub-oscillator (32.768 kHz), and internal RC oscillators - all configurable via system control registers in the UPD78F1168AGC(R)-UEU-AX.

Does the UPD78F1168AGC(R)-UEU-AX support in-system programming?

Yes, the UPD78F1168AGC(R)-UEU-AX supports in-system programming (ISP) via its single-wire on-chip debug (OCDS) interface. Using Renesas' Flash development toolkit (FDK) and compatible programmers like PG-FP5, firmware can be updated in the field without removing the UPD78F1168AGC(R)-UEU-AX from the target board - provided the boot ROM is enabled and the FLMD0 pin is correctly configured during reset.

What is the Flash memory endurance specification for the UPD78F1168AGC(R)-UEU-AX?

The UPD78F1168AGC(R)-UEU-AX features 256 KB of on-chip SuperFlash® memory rated for 100,000 write/erase cycles and guaranteed 10-year data retention at +85°C. This endurance enables frequent firmware updates in industrial applications, and the UPD78F1168AGC(R)-UEU-AX includes dedicated Flash protection registers to prevent accidental erasure of critical bootloader sections.

Can the UPD78F1168AGC(R)-UEU-AX operate with both 3.3 V and 5 V I/O simultaneously?

Yes, the UPD78F1168AGC(R)-UEU-AX supports dual voltage domains: EVDD0 powers the core at 3.3 V (regulated internally), while EVDD1 supplies I/O ports at 5 V. This architecture allows direct interfacing with 5 V sensors and actuators without external level shifters, and the UPD78F1168AGC(R)-UEU-AX I/O pins are 5 V tolerant even when EVDD0 = 3.3 V - verified across the full −40°C to +85°C temperature range.

Is the UPD78F1168AGC(R)-UEU-AX qualified for industrial temperature operation?

Yes, the UPD78F1168AGC(R)-UEU-AX is qualified for industrial temperature operation from −40°C to +85°C ambient, meeting Renesas Electronics' "Standard" quality grade requirements. This qualification covers all electrical specifications including Flash write timing, ADC accuracy, and I/O drive strength - confirmed in the official Renesas datasheet U17894EJ9V0UD for the 78K0R/KG3 family, which explicitly lists UPD78F1168AGC(R)-UEU-AX under the expanded-specification products with industrial-grade screening.