Renesas UPD78F0058GC-8BT-A

Overview

UPD78F0058GC-8BT-A from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K/0 Series, featuring 64 KB flash memory, 2 KB RAM, and integrated peripherals including 10-bit A/D converter (8 channels), D/A converter (2 channels), three 16-bit timers, UART, I²C, and serial interface channels. It operates at up to 20 MHz with supply voltage range 2.2 V to 5.5 V and targets embedded control in industrial and consumer applications.

For engineers reviewing the UPD78F0058GC-8BT-A datasheet, UPD78F0058GC-8BT-A pinout, UPD78F0058GC-8BT-A application, or UPD78F0058GC-8BT-A equivalent, key selection criteria include flash programmability, dual D/A outputs for analog actuation, I²C bus support, 80-pin TQFP package compatibility, and qualification for Standard-grade industrial use per Renesas quality classification.

Technical Context

The UPD78F0058GC-8BT-A implements the 78K/0 CPU core with 16-bit addressing, supporting both mask ROM and flash variants within the µPD78F0058 subseries. Its peripheral set includes a 10-bit successive-approximation A/D converter with sampling time ≤1.5 µs and a 8-bit D/A converter with output voltage range 0–VDD.

It supports multiple clock sources - internal high-speed oscillator (up to 20 MHz), external crystal/resonator (1–20 MHz), and sub-clock (32.768 kHz) - with flexible clock routing to peripherals. The device uses a dedicated reset circuit with power-on reset (POR), low-voltage detection (LVD), and watchdog timer (WDT) for robust system initialization and fault recovery.

Key Specifications

Pinout & Package

UPD78F0058GC-8BT-A is housed in an 80-pin plastic TQFP (GK-9EU type) package with 0.5 mm pitch, compliant with JEDEC MO-220, and rated for industrial temperature range (−40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with UPD78F0058GC-8BT-A, R5F100PLAFB#30 offers superior low-power performance but omits D/A converters, while UPD78F1142GA-UEU-AX adds CAN and larger memory at higher cost and pin count - making UPD78F0058GC-8BT-A optimal for cost-sensitive, analog-output–centric standalone controllers.

Availability

UPD78F0058GC-8BT-A is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, home appliance UI controllers, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and Standard-grade qualification.

Supply support for UPD78F0058GC-8BT-A 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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and SoC solutions.

The µPD78F0058 subseries belongs to the 78K/0 family, designed specifically for cost-effective, low-to-mid complexity embedded control in industrial equipment, consumer appliances, and sensor interfaces where flash programmability and integrated analog peripherals are essential.

FAQ

What is the maximum operating frequency of the UPD78F0058GC-8BT-A?

The UPD78F0058GC-8BT-A supports a maximum operating frequency of 20 MHz when using the internal high-speed oscillator or an external crystal up to 20 MHz. At this frequency, the CPU executes instructions with a minimum cycle time of 50 ns. This timing enables deterministic response in real-time control applications such as motor commutation and sensor sampling, and is validated across the full industrial temperature range (−40°C to +85°C) per Renesas Electrical Specifications Chapter 29.

Does the UPD78F0058GC-8BT-A include an integrated D/A converter?

Yes, the UPD78F0058GC-8BT-A integrates two independent 8-bit voltage-output D/A converters (DA0 and DA1) accessible via Port 2 pins. Each channel delivers a monotonic output voltage ranging from 0 V to VDD, with typical settling time of 10 µs. These D/A outputs are directly usable for analog actuation tasks like biasing op-amps, controlling LED brightness, or setting reference voltages - eliminating the need for external DAC ICs in many designs.

What package type and pin count does the UPD78F0058GC-8BT-A use?

The UPD78F0058GC-8BT-A uses an 80-pin plastic TQFP package (GK-9EU type) with 0.5 mm lead pitch, as confirmed in Chapter 32 of the U12013EJ3V2UD User's Manual. This package is RoHS-compliant, rated for −40°C to +85°C operation, and features dual power/ground pairs to minimize noise coupling. Pin assignments match the µPD78F0058 subseries standard layout, ensuring compatibility with existing 78K/0 design tools and PCB footprints.

Is the UPD78F0058GC-8BT-A qualified for automotive applications?

No, the UPD78F0058GC-8BT-A is classified as a Standard-grade Renesas product, intended for computers, office equipment, communications gear, audio/video devices, home appliances, and industrial robots. It is not qualified for automotive (High Quality grade) or safety-critical (Specific grade) applications. For automotive use, Renesas recommends RL78/F1x or RH850 families with AEC-Q100 qualification and extended temperature support.

How is flash memory programmed on the UPD78F0058GC-8BT-A?

Flash memory on the UPD78F0058GC-8BT-A is programmed using Renesas' PG-FP3 or PG-FP4 flash memory programmers via the dedicated FLMD pin and on-chip serial interface. In-system programming (ISP) is also supported through UART channel 0 using the built-in bootloader - enabling firmware updates without removing the device from the target board. Programming requires VPP = 10 V and adheres to timing specifications in Chapter 26 of the User's Manual.