Renesas UPD78F1144AGB(R)-GAH-M1-AX

Overview

UPD78F1144AGB(R)-GAH-M1-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 and supports voltage range 2.7–5.5 V, targeting industrial control and sensor interface applications requiring deterministic real-time response.

For engineers reviewing the UPD78F1144AGB(R)-GAH-M1-AX datasheet, UPD78F1144AGB(R)-GAH-M1-AX pinout, UPD78F1144AGB(R)-GAH-M1-AX application, or UPD78F1144AGB(R)-GAH-M1-AX equivalent, key selection considerations include its 100-pin LQFP package, Flash endurance (100k write/erase cycles), built-in BCD correction logic for real-time clock support, and compliance with industrial-grade temperature range (−40°C to +85°C).

Technical Context

The UPD78F1144AGB(R)-GAH-M1-AX implements the 78K0R CPU core with 16-bit ALU, 24-bit address space, and Harvard architecture separating program and data memory. It integrates a programmable low-voltage detection circuit (LVD) with 4 selectable thresholds and a watchdog timer with independent clock source.

Peripheral integration includes a 16-bit multifunction timer unit (TMU) supporting input capture, output compare, PWM generation, and encoder interface modes; plus a 10-bit successive-approximation ADC with sample-and-hold and hardware-triggered conversion sequencing across 16 analog inputs.

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas User's Manual U17854EJ9V0UD, Chapter 2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F1144AGB(R)-GAH-M1-AX, R5F100LEAFB#30 offers lower BOM cost but sacrifices ADC channel count and real-time clock support, while MB95560PFT-G-SAMPLE delivers higher processing headroom at the expense of increased layout complexity and power management overhead.

Availability

UPD78F1144AGB(R)-GAH-M1-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for UPD78F1144AGB(R)-GAH-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 industrial, automotive, and infrastructure markets.

The 78K0R/KE3 product line was designed for cost-sensitive, high-reliability industrial control applications demanding robust analog integration, deterministic real-time performance, and long-lifecycle support - exemplified by the UPD78F1144AGB(R)-GAH-M1-AX.

FAQ

What is the maximum operating frequency of the UPD78F1144AGB(R)-GAH-M1-AX?

The UPD78F1144AGB(R)-GAH-M1-AX supports a maximum CPU clock frequency of 20 MHz using its internal high-speed oscillator. This allows full-speed execution of instructions without external crystal dependency, reducing bill-of-materials cost and board space. The device maintains timing compliance across its full operating voltage range (2.7–5.5 V) and temperature range (−40°C to +85°C), making it suitable for industrial environments where thermal stability is critical. All peripheral modules - including ADC, timers, and serial interfaces - are fully functional at this clock rate.

Does the UPD78F1144AGB(R)-GAH-M1-AX support in-system programming (ISP)?

Yes, the UPD78F1144AGB(R)-GAH-M1-AX supports in-system programming via its on-chip bootloader, accessible through UART0 or dedicated flash programming pins. This capability enables firmware updates directly in the target application without removing the chip or using an external programmer. The bootloader validates checksums before committing new code, and Flash memory supports 100,000 erase/write cycles with guaranteed 10-year data retention at 85°C - essential for field-deployed industrial equipment requiring long-term maintainability.

What analog features are integrated into the UPD78F1144AGB(R)-GAH-M1-AX?

The UPD78F1144AGB(R)-GAH-M1-AX integrates a 10-bit successive-approximation ADC with 16 input channels, sample-and-hold circuitry, and hardware-triggered scan mode. It also includes a programmable low-voltage detection (LVD) circuit with four selectable thresholds (2.7 V, 3.3 V, 3.8 V, 4.2 V), an internal 2.5 V reference for ADC, and dedicated AVREF/AVSS pins for analog domain isolation. These features eliminate the need for external voltage supervisors or signal-conditioning ICs in many sensor interface applications.

Is the UPD78F1144AGB(R)-GAH-M1-AX qualified for industrial temperature operation?

Yes, the UPD78F1144AGB(R)-GAH-M1-AX is rated for operation from −40°C to +85°C and classified under Renesas' "Standard" quality grade, explicitly approved for industrial robots, machine tools, and factory automation systems. Its electrical specifications - including Flash endurance, ADC accuracy, and timing parameters - are guaranteed across this full range. The device incorporates design features such as Schmitt-trigger inputs and hysteresis-configurable I/O to ensure noise immunity in electrically harsh industrial settings.

What development tools are officially supported for the UPD78F1144AGB(R)-GAH-M1-AX?

Renesas officially supports the UPD78F1144AGB(R)-GAH-M1-AX with the CC78K0R C compiler (Ver. 2.00), RA78K0R assembler (Ver. 1.20), ID78K0R-QB integrated debugger (Ver. 3.20), and QB-MINI2 on-chip debug emulator with programming function. These tools enable full-cycle development - from simulation and compilation to real-time debugging and Flash programming - all aligned with the 78K0R/KE3 architecture. The QB-MINI2 connects via the 14-pin debug interface and supports hot-plug debugging without resetting the target system.