Renesas UPD78F0883GB(A)-GAF-AX

Overview

UPD78F0883GB(A)-GAF-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/FC2 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and a 20 MHz max CPU clock. It integrates 10-bit A/D converter (8 channels), UART, I²C, and 16-bit timer arrays for embedded control in industrial and consumer systems.

For engineers reviewing the UPD78F0883GB(A)-GAF-AX datasheet, UPD78F0883GB(A)-GAF-AX pinout, UPD78F0883GB(A)-GAF-AX application, or UPD78F0883GB(A)-GAF-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), A/D conversion time (1.1 µs typical), operating voltage range (2.7–5.5 V), and support for on-chip debug via QB-MINI2 emulator.

Technical Context

The UPD78F0883GB(A)-GAF-AX implements the 78K0 core with 16-bit index registers and 8-bit accumulator architecture, supporting 131 instructions including bit manipulation and multiply/divide. It uses SuperFlash® technology licensed from Silicon Storage Technology for reliable flash programming.

On-chip peripherals include three 16-bit timer arrays (each with capture/compare/PWM functions), a watchdog timer with independent clock, and a low-voltage detection circuit with programmable threshold (2.4 V or 3.9 V). The device supports both internal and external clock sources, with main clock frequency up to 20 MHz.

Key Specifications

Pinout & Package

The UPD78F0883GB(A)-GAF-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the 78K0/FC2 standard layout, supporting dual-voltage I/O (VDD/EVDD separation) and dedicated analog supply pins (AVREF, AVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100PLA, UPD78F0883GB(A)-GAF-AX offers 33% more Flash and 33% more RAM for complex feature sets, while UPD78F0882GB(A)-GAF-AX provides identical peripheral functionality at lower memory cost-making it a validated pin-compatible alternative when firmware fits within its constraints.

Availability

UPD78F0883GB(A)-GAF-AX is available at Aetrix Electronics and suitable for industrial motor control, smart home appliance control, and factory automation I/O modules requiring stable component supply across multi-year production cycles.

Supply support for UPD78F0883GB(A)-GAF-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 headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.

The UPD78F0883GB(A)-GAF-AX belongs to the 78K0/Fx2 product line, designed specifically for cost-sensitive, high-reliability embedded control applications where deterministic real-time performance and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the UPD78F0883GB(A)-GAF-AX?

The UPD78F0883GB(A)-GAF-AX supports a maximum CPU clock frequency of 20 MHz when using the high-speed on-chip oscillator or an external crystal. This frequency enables sub-microsecond instruction execution and meets timing requirements for real-time motor control loops and sensor sampling. The device also supports lower-frequency modes for power optimization, with the internal low-speed oscillator running at 15 kHz for standby operation.

Does the UPD78F0883GB(A)-GAF-AX support in-circuit debugging?

Yes, the UPD78F0883GB(A)-GAF-AX supports full hardware in-circuit debugging via a single-wire interface compatible with Renesas QB-MINI2 and QB-78K0MINI emulators. This enables real-time breakpoint setting, register inspection, and memory read/write during active program execution - essential for validating control algorithms and diagnosing timing-critical issues in the UPD78F0883GB(A)-GAF-AX application environment.

What are the Flash memory endurance and data retention specifications for the UPD78F0883GB(A)-GAF-AX?

The UPD78F0883GB(A)-GAF-AX features 128 KB of SuperFlash® memory rated for 100,000 write/erase cycles and guaranteed 20-year data retention at 85°C ambient temperature. These specifications are validated per Renesas' quality standards and apply directly to the UPD78F0883GB(A)-GAF-AX device - enabling robust firmware updates and parameter storage in industrial equipment with long service lifetimes.

How many A/D input channels does the UPD78F0883GB(A)-GAF-AX provide, and what is the conversion speed?

The UPD78F0883GB(A)-GAF-AX integrates an 8-channel, 10-bit successive-approximation A/D converter with a typical conversion time of 1.1 µs per sample. All eight channels are accessible on dedicated pins (AD0–AD7) mapped to Port 1, supporting simultaneous sampling configurations when used with external trigger sources - making the UPD78F0883GB(A)-GAF-AX well-suited for multi-sensor monitoring in motor drives and power supplies.

Is the UPD78F0883GB(A)-GAF-AX pin-compatible with other members of the 78K0/FC2 family?

Yes, the UPD78F0883GB(A)-GAF-AX shares the same 100-pin LQFP package and pin assignment with other 78K0/FC2 variants including UPD78F0881GB(A)-GAF-AX through UPD78F0886GB(A)-GAF-AX. This allows direct PCB reuse across different memory configurations - for example, upgrading from UPD78F0882GB(A)-GAF-AX (96 KB Flash) to UPD78F0883GB(A)-GAF-AX (128 KB Flash) requires no layout changes.