Renesas UPD78F1165AGC(R)-UEU-AX

Overview

UPD78F1165AGC(R)-UEU-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 10-bit ADC (16 channels), UART, I²C, and 16-bit timer arrays. 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-driven appliances.

For engineers reviewing the UPD78F1165AGC(R)-UEU-AX datasheet, UPD78F1165AGC(R)-UEU-AX pinout, UPD78F1165AGC(R)-UEU-AX application, or UPD78F1165AGC(R)-UEU-AX equivalent, key selection considerations 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 - critical for rapid firmware iteration in cost-sensitive industrial designs.

Technical Context

The UPD78F1165AGC(R)-UEU-AX implements the 78K0R CPU core with 16-bit ALU, 32 × 8-bit general-purpose registers, and Harvard architecture memory mapping. It integrates a 3-channel 16-bit timer array with capture/compare and PWM output capability, plus a 10-bit successive-approximation ADC with sample-and-hold and hardware-triggered conversion sequencing.

Its peripheral set includes two UART channels (one with LIN support), one I²C bus interface (master/slave), and a 16-bit watchdog timer with independent clock source. The device supports low-power modes (HALT, STOP) with wake-up via external interrupt or peripheral event, enabling battery-operated sensor node applications.

Key Specifications

Pinout & Package

The UPD78F1165AGC(R)-UEU-AX is housed in a 100-pin LQFP package (JEDEC MS-026AC) with 0.5 mm lead pitch and exposed thermal pad (EP). Pin assignment follows the 78K0R/KG3 standard layout, supporting full port multiplexing and dedicated analog/digital power domains (EVDD0/EVSS0 for ADC, VDD/VSS for digital core).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100PLAFB#30 and MB95560PFT-G-SAMPLE, the UPD78F1165AGC(R)-UEU-AX offers deterministic ADC hardware triggering tied to timer array outputs - a critical advantage for motor current sampling synchronization - while maintaining full backward compatibility with legacy 78K0R toolchains and debug infrastructure.

Availability

UPD78F1165AGC(R)-UEU-AX is available at Aetrix Electronics and suitable for industrial temperature sensor nodes, brushless DC motor controllers, smart power outlets, and programmable logic relays requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1165AGC(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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The UPD78F1165AGC(R)-UEU-AX belongs to the 78K0R/KG3 product line, designed specifically for cost-optimized, high-reliability embedded control in industrial equipment where Flash endurance, mixed-signal integration, and long-term supply stability are essential.

FAQ

What is the maximum operating frequency of the UPD78F1165AGC(R)-UEU-AX?

The UPD78F1165AGC(R)-UEU-AX supports a maximum system clock frequency of 20 MHz when powered within its specified 2.7–5.5 V supply range. This frequency is achievable using the on-chip high-speed oscillator (HOCO) or an external crystal/resonator up to 20 MHz. The 78K0R CPU core executes instructions at one cycle per instruction for most operations, delivering predictable real-time performance for deterministic control loops in the UPD78F1165AGC(R)-UEU-AX.

Does the UPD78F1165AGC(R)-UEU-AX support in-system programming (ISP)?

Yes, the UPD78F1165AGC(R)-UEU-AX supports in-system programming via its on-chip bootloader, which can be activated through UART0 or the single-wire debug (SWD) interface. This enables firmware updates without removing the device from the target board. The bootloader resides in protected ROM and supports Flash memory erase/write operations with checksum verification. Field updates of the UPD78F1165AGC(R)-UEU-AX firmware require no external programming hardware beyond a standard UART-to-USB adapter or SWD debugger.

What is the role of the REGC pin on the UPD78F1165AGC(R)-UEU-AX?

REGC is the internal regulator control pin for the UPD78F1165AGC(R)-UEU-AX. When asserted high, it enables the on-chip 3.3 V regulator that supplies the EVDD0/EVSS0 domain used by the ADC and analog comparators. This function is only active when VDD ≥ 4.0 V. When disabled (REGC low), the EVDD0/EVSS0 pins must be externally supplied with a clean 3.3 V reference. Proper REGC handling ensures ADC accuracy and noise immunity - a critical design consideration for precision measurement applications using the UPD78F1165AGC(R)-UEU-AX.

How many ADC channels does the UPD78F1165AGC(R)-UEU-AX support, and what is their resolution?

The UPD78F1165AGC(R)-UEU-AX integrates a 10-bit successive-approximation ADC with 16 selectable input channels (AN0–AN15), mapped across ports P40–P47, P50–P57, and P140–P145. Each conversion delivers 10-bit digital output with ±1 LSB integral nonlinearity (INL) and supports hardware-triggered sequential scanning. This ADC subsystem is directly coupled to the timer array and external event inputs, allowing precise timing alignment - a key capability for current sensing and sensor signal acquisition in the UPD78F1165AGC(R)-UEU-AX.

Is the UPD78F1165AGC(R)-UEU-AX qualified for automotive applications?

No, the UPD78F1165AGC(R)-UEU-AX is classified as a Standard quality grade device per Renesas documentation, intended for industrial, office, and consumer equipment - not automotive or safety-critical systems. It is rated for −40°C to +85°C operation and lacks AEC-Q100 qualification, extended temperature screening, or automotive-specific failure-in-time (FIT) data. For automotive use cases, Renesas recommends the RL78/F1x or RH850 families. Engineers selecting the UPD78F1165AGC(R)-UEU-AX must confirm application compliance with Standard-grade usage guidelines defined in Renesas document U17894EJ9V0UD.