Renesas UPD78F1167AGC-UEU-AX

Overview

UPD78F1167AGC-UEU-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KE3 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 of 2.7 V to 5.5 V and targets embedded control in industrial sensors and motor-driven appliances.

For engineers reviewing the UPD78F1167AGC-UEU-AX datasheet, UPD78F1167AGC-UEU-AX pinout, UPD78F1167AGC-UEU-AX application, or UPD78F1167AGC-UEU-AX equivalent, key selection considerations include its 100-pin LQFP package, 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.

Technical Context

The UPD78F1167AGC-UEU-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 detector (LVD) with 4 selectable thresholds and supports multiple clock sources including internal high-speed oscillator (up to 20 MHz), sub-clock (32.768 kHz), and external crystal.

Peripheral integration includes a 16-bit multifunction timer array unit (TAU) with capture/compare/PWM functions, serial interface controller (SIC) supporting UART/I²C/SPI modes, and 10-bit successive approximation ADC with sample-and-hold circuitry and hardware trigger synchronization to timer events.

Key Specifications

Pinout & Package

The UPD78F1167AGC-UEU-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal dissipation in continuous industrial operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100LGSP and MB95560P, the UPD78F1167AGC-UEU-AX offers balanced analog integration (10-bit ADC + hardware triggers), robust industrial timing (TAU), and streamlined debug (SWD), making it optimal for cost-sensitive, mixed-signal embedded controllers where firmware update safety and peripheral coordination matter.

Availability

UPD78F1167AGC-UEU-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control modules, smart appliance UIs, and energy metering subsystems requiring stable component supply and long-term production continuity.

Supply support for UPD78F1167AGC-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 IoT applications.

The UPD78F1167AGC-UEU-AX belongs to the 78K0R/KE3 product line, designed specifically for cost-effective, high-integration 16-bit embedded control in industrial equipment and consumer appliances requiring reliable analog interfaces and deterministic real-time performance.

FAQ

What is the maximum operating frequency of the UPD78F1167AGC-UEU-AX?

The UPD78F1167AGC-UEU-AX supports a maximum CPU operating frequency of 20 MHz when using the internal high-speed oscillator or an external crystal source. This frequency is fully supported across the entire specified industrial temperature range (−40°C to +85°C) and supply voltage range (2.7 V to 5.5 V). The device includes clock dividers and prescalers to generate lower-frequency clocks for peripherals without compromising core performance.

Does the UPD78F1167AGC-UEU-AX support in-circuit debugging without additional hardware?

Yes, the UPD78F1167AGC-UEU-AX features a single-wire debug (SWD) interface that enables full in-circuit debugging-including breakpoints, step execution, and register/memory inspection-using only two pins (SWDIO and SWCLK) and no external debug probe beyond a standard SWD adapter. This capability is built into the silicon and requires no external debug circuitry or dedicated JTAG header, simplifying board layout and reducing BOM cost.

What ADC features does the UPD78F1167AGC-UEU-AX provide for sensor interfacing?

UPD78F1167AGC-UEU-AX integrates a 10-bit successive approximation ADC with 16 input channels, ±1 LSB integral nonlinearity, and hardware-triggered sampling synchronized to timer events. It supports scan mode, automatic channel sequencing, and conversion result buffering in RAM. The ADC operates independently of CPU activity, allowing precise timing-critical acquisitions without software overhead or jitter.

Is the UPD78F1167AGC-UEU-AX qualified for industrial temperature operation?

Yes, the UPD78F1167AGC-UEU-AX is rated for industrial-grade operation from −40°C to +85°C and is classified as a "Standard" quality grade device per Renesas documentation. It meets all electrical specifications-including Flash endurance, ADC accuracy, and timing parameters-within this full temperature range, making it suitable for deployment in factory automation, HVAC, and outdoor equipment environments.

How is Flash memory protected against unauthorized access on the UPD78F1167AGC-UEU-AX?

The UPD78F1167AGC-UEU-AX implements Flash read-out protection via a dedicated lock bit that disables external read access to program memory through the debug interface or serial programming. Once enabled, the lock bit is irreversible and prevents firmware reverse engineering or cloning. This feature is configured during programming and enforced by on-chip security logic, independent of software execution state.