Renesas UPD78F1001GA-HAA-AX

Overview

UPD78F1001GA-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, 10-bit ADC (8 channels), and 16-bit timer arrays for real-time control in embedded systems. Used in industrial sensor nodes requiring deterministic timing and low-power operation.

For engineers reviewing the UPD78F1001GA-HAA-AX datasheet, UPD78F1001GA-HAA-AX pinout, UPD78F1001GA-HAA-AX application, or UPD78F1001GA-HAA-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), operating voltage range (2.7–5.5 V), and support for single-supply operation with internal voltage regulator (REGC pin).

Technical Context

The UPD78F1001GA-HAA-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory organization, and instruction set compatible with earlier 78K/III devices. It supports both ROM-based and flash-based program execution with boot swap capability via FLMD0 pin configuration.

On-chip peripherals include a 10-bit successive-approximation ADC with sample-and-hold, dual 16-bit timer arrays with PWM output and input capture, and asynchronous serial interface supporting full-duplex UART and multimaster I²C modes - all accessible via dedicated SFRs and interrupt vectors mapped to fixed priority levels.

Key Specifications

Pinout & Package

UPD78F1001GA-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, 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 R5F100PLASP#30 and UPD78F1002GA-HAA-AX, the UPD78F1001GA-HAA-AX balances Flash capacity, analog performance, and industrial-grade power management - making it optimal for cost-sensitive, non-automotive embedded controllers requiring robust ADC and timer subsystems.

Availability

UPD78F1001GA-HAA-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control interfaces, and programmable logic relays requiring stable component supply and long-term production continuity.

Supply support for UPD78F1001GA-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 management ICs 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 - emphasizing analog integration, low-power operation, and long-lifecycle support.

FAQ

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

The UPD78F1001GA-HAA-AX supports a maximum CPU clock frequency of 20 MHz, achievable using either the on-chip oscillator (with external crystal or ceramic resonator) or an external clock source. At this speed, the device executes instructions with a 100 ns minimum cycle time, enabling real-time response in time-critical control loops such as motor commutation or sensor sampling. The UPD78F1001GA-HAA-AX datasheet specifies timing margins under worst-case voltage and temperature conditions.

Does the UPD78F1001GA-HAA-AX include an internal voltage regulator?

Yes, the UPD78F1001GA-HAA-AX features an internal voltage regulator controlled by the REGC pin. When REGC is pulled high, the regulator generates a stable 3.3 V supply for the core logic from the main VDD rail (2.7–5.5 V). This eliminates the need for an external LDO in many designs and improves noise immunity. The UPD78F1001GA-HAA-AX allows bypass mode (REGC low) for systems with pre-regulated 3.3 V supply.

How many ADC channels does the UPD78F1001GA-HAA-AX support, and what is its resolution?

The UPD78F1001GA-HAA-AX integrates a 10-bit successive-approximation ADC with 8 input channels. It supports hardware-triggered conversions via timer events, internal averaging across up to 16 samples, and selectable reference sources (AVREF or internal bandgap). This ADC configuration enables accurate measurement of analog sensor outputs such as thermistors or current shunts without external signal conditioning. The UPD78F1001GA-HAA-AX ADC meets ±1 LSB INL/DNL specifications across the full industrial temperature range.

Is the UPD78F1001GA-HAA-AX pin-compatible with other devices in the 78K0R/KC3-L family?

Yes, the UPD78F1001GA-HAA-AX shares the same 48-pin LQFP package and pinout with other 48-pin members of the 78K0R/KC3-L family, including UPD78F1000GA-HAA-AX and UPD78F1002GA-HAA-AX. This enables drop-in replacement within the same footprint for design flexibility and scalability. The UPD78F1001GA-HAA-AX maintains identical peripheral mappings and power pin assignments, simplifying migration between variants with different Flash sizes.

What development tools are supported for the UPD78F1001GA-HAA-AX?

The UPD78F1001GA-HAA-AX is supported by Renesas' RA78K0R assembler, CC78K0R C compiler (Ver. 2.00), and ID78K0R-QB integrated debugger. Hardware tools include QB-MINI2 on-chip debug emulator and QB-78K0RIX3 in-circuit emulator. These tools enable full-cycle development - from register-level assembly to high-level C firmware - with real-time trace, flash programming, and peripheral register inspection. The UPD78F1001GA-HAA-AX is also compatible with Renesas' Self Programming Library Type02 for secure field updates.