Renesas UPD78F1233GB-GAH-AX

Overview

UPD78F1233GB-GAH-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/Ix3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and a maximum operating frequency of 20 MHz. It integrates a 10-bit ADC with 16 channels, UART, I²C, and 16-bit timer/counters, and targets industrial control and sensor interface applications requiring deterministic real-time response.

For engineers reviewing the UPD78F1233GB-GAH-AX datasheet, UPD78F1233GB-GAH-AX pinout, UPD78F1233GB-GAH-AX application, or UPD78F1233GB-GAH-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating voltage range (2.7–5.5 V), package type (LQFP-100), and support for on-chip debug via QB-MINI2 emulator.

Technical Context

The UPD78F1233GB-GAH-AX implements the 78K0R CPU core with Harvard architecture, supporting 16-bit data paths and 24-bit addressing. It includes a programmable watchdog timer, low-voltage detection circuit, and power-down modes (HALT, STOP) for energy-sensitive embedded systems.

Peripheral integration includes a 16-channel 10-bit ADC with sample-and-hold, three 16-bit reload timers (with input capture/output compare), two UARTs with LIN support, and an I²C-compatible serial array unit (SAU). All peripherals are memory-mapped and controlled via dedicated SFRs.

Key Specifications

Pinout & Package

LQFP-100 (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F1233GB-GAH-AX, R5F100LEAFB#30 offers lower system cost but reduced ADC channel count and no hardware LIN support, while MB95F567KPMC-GSE1 provides greater memory headroom at the expense of higher static current and non-drop-in register compatibility.

Availability

UPD78F1233GB-GAH-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, and programmable logic controller I/O modules requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1233GB-GAH-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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.

The 78K0R/Ix3 product line delivers industrial-grade 16-bit MCUs optimized for deterministic real-time control, low-power operation, and robust peripheral integration in cost-sensitive embedded systems.

FAQ

What is the maximum operating frequency of the UPD78F1233GB-GAH-AX?

The UPD78F1233GB-GAH-AX operates at a maximum frequency of 20 MHz across its full 2.7–5.5 V supply range and −40°C to +85°C temperature grade. This frequency is achieved using the on-chip high-speed system clock derived from the main oscillator or PLL, and supports single-cycle instruction execution for deterministic real-time performance in the UPD78F1233GB-GAH-AX.

Does the UPD78F1233GB-GAH-AX include on-chip debug capability?

Yes, the UPD78F1233GB-GAH-AX integrates a full on-chip debug interface compliant with Renesas' standard protocol and directly supports the QB-MINI2 on-chip debug emulator. This eliminates the need for external debug headers or boundary-scan logic, allowing real-time breakpoint setting, register inspection, and flash programming during development of the UPD78F1233GB-GAH-AX.

What is the Flash memory endurance specification for the UPD78F1233GB-GAH-AX?

The UPD78F1233GB-GAH-AX uses SuperFlash® technology with guaranteed endurance of 100,000 write/erase cycles and 10-year data retention at 85°C. This specification applies to the full 128 KB on-chip Flash memory and is validated per Renesas' quality standards for industrial-grade operation of the UPD78F1233GB-GAH-AX.

How many ADC channels does the UPD78F1233GB-GAH-AX support, and what is its resolution?

The UPD78F1233GB-GAH-AX integrates a 10-bit successive approximation ADC with 16 configurable input channels. Conversion time is 1.2 μs per sample under typical conditions, and the ADC supports hardware triggering from multiple sources including timers and external interrupts - a key capability for time-critical measurement in the UPD78F1233GB-GAH-AX.

What package type is used for the UPD78F1233GB-GAH-AX?

The UPD78F1233GB-GAH-AX is supplied in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with an exposed thermal pad. This package meets JEDEC MS-026 standards, supports automated optical inspection, and is qualified for industrial reflow profiles - ensuring reliable assembly and thermal performance for the UPD78F1233GB-GAH-AX.