Renesas UPD78F1001GA(R)-HAA-AX

Overview

UPD78F1001GA(R)-HAA-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KC3-L family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and a 20 MHz max CPU clock. It integrates UART, I²C, 16-bit timer arrays, ADC (8-channel, 10-bit), and operates from 2.7 to 5.5 V. It targets industrial control panels requiring deterministic real-time response and low-power operation.

For engineers reviewing the UPD78F1001GA(R)-HAA-AX datasheet, UPD78F1001GA(R)-HAA-AX pinout, UPD78F1001GA(R)-HAA-AX application, or UPD78F1001GA(R)-HAA-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), 10-bit ADC conversion time (≤1.2 μs), and support for single-cycle instruction execution at 20 MHz - critical for closed-loop motor control and sensor fusion firmware.

Technical Context

The UPD78F1001GA(R)-HAA-AX implements the 78K0R CPU core with 16-bit ALU, 16-bit data bus, and Harvard architecture. It supports interrupt nesting up to 8 levels and includes a watchdog timer with independent clock source (15 kHz on-chip oscillator).

Its peripheral set includes a 16-bit multifunction timer array (TAU) with capture/compare/PWM output, a serial interface supporting UART and I²C master/slave modes, and an analog-to-digital converter with programmable sampling time and built-in reference voltage (AVREF = VDD or external).

Key Specifications

Pinout & Package

UPD78F1001GA(R)-HAA-AX is housed in a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Renesas User's Manual Rev.4.00 (R01UH0106EJ0400), Section 1.4.1 and 2.1.1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F1001GA(R)-HAA-AX, R5F100PLAFB#30 offers newer architecture and lower active power but sacrifices TAU-level motor control precision, while STM8L152R8T6 provides comparable memory but lacks the deterministic 20 MHz 16-bit execution and integrated analog subsystem needed for industrial feedback loops.

Availability

UPD78F1001GA(R)-HAA-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and power supply monitoring units requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1001GA(R)-HAA-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The 78K0R/KC3-L product line delivers cost-optimized 16-bit MCUs targeting industrial automation, building control, and appliance applications where deterministic real-time performance and Flash endurance are prioritized over ultra-low power or advanced connectivity.

FAQ

What is the maximum operating frequency of the UPD78F1001GA(R)-HAA-AX?

The UPD78F1001GA(R)-HAA-AX supports a maximum CPU clock frequency of 20 MHz, achieved using an external crystal (up to 20 MHz) or internal high-speed oscillator. At this rate, it executes instructions in 50 ns cycles, enabling tight real-time control loops in motor drive and power conversion applications. The UPD78F1001GA(R)-HAA-AX datasheet specifies timing margins for all peripherals under this condition.

Does the UPD78F1001GA(R)-HAA-AX include a hardware I²C interface?

Yes, the UPD78F1001GA(R)-HAA-AX integrates a hardware I²C interface supporting both master and slave modes, configurable via SFR registers. It operates at standard (100 kbps) and fast (400 kbps) modes, with automatic arbitration and clock stretching. This capability is confirmed in Section 2.2.4 of the R01UH0106EJ0400 User's Manual and applies directly to the UPD78F1001GA(R)-HAA-AX variant.

What is the Flash memory endurance specification for the UPD78F1001GA(R)-HAA-AX?

The UPD78F1001GA(R)-HAA-AX features 64 KB of on-chip Flash memory rated for 100,000 write/erase cycles per block, as specified in Renesas' official documentation for the 78K0R/KC3-L family. This endurance level supports field firmware updates in industrial equipment without requiring external nonvolatile storage. The UPD78F1001GA(R)-HAA-AX also supports self-programming via on-chip routines.

Can the UPD78F1001GA(R)-HAA-AX operate from a 3.3 V supply?

Yes, the UPD78F1001GA(R)-HAA-AX operates across a supply voltage range of 2.7 V to 5.5 V, fully supporting 3.3 V nominal systems. Its I/O pins are 5 V tolerant when configured as inputs, allowing safe interfacing with higher-voltage peripherals. All electrical characteristics - including ADC accuracy, timer stability, and Flash programming voltage - are guaranteed across this range for the UPD78F1001GA(R)-HAA-AX.

What debug interface does the UPD78F1001GA(R)-HAA-AX support?

The UPD78F1001GA(R)-HAA-AX supports on-chip debugging via the single-wire NHW (Nexus Hardware) interface, compatible with Renesas' QB-MINI2 and ID78K0R-QB tools. This interface enables full breakpoint, watchpoint, and real-time variable monitoring without halting peripheral operation. Debug functionality is implemented in silicon for the UPD78F1001GA(R)-HAA-AX and does not require external JTAG circuitry.