Renesas UPD78F1213GB-GAF-AX

Overview

UPD78F1213GB-GAF-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/IC3 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 arrays, targeting embedded control in industrial equipment and consumer appliances.

For engineers reviewing the UPD78F1213GB-GAF-AX datasheet, UPD78F1213GB-GAF-AX pinout, UPD78F1213GB-GAF-AX application, or UPD78F1213GB-GAF-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), operating voltage range (2.7–5.5 V), and support for low-power stop modes with wake-up via external interrupt or RTC alarm.

Technical Context

The UPD78F1213GB-GAF-AX implements the 78K0R CPU core with 16-bit ALU, 16-bit data bus, and Harvard architecture. It supports three power-saving modes - HALT, STOP, and SNOOZE - with typical current consumption of 0.8 μA in STOP mode at 3.3 V.

On-chip peripherals include a 16-bit multifunction timer array unit (TAU) with capture/compare and PWM output, a watchdog timer with independent clock source, and a real-time clock (RTC) with calendar function. The device uses SuperFlash® technology licensed from Silicon Storage Technology for its Flash memory.

Key Specifications

Pinout & Package

UPD78F1213GB-GAF-AX is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per port group (P0–P15), including dedicated peripheral pins for UART, I²C, TAU, ADC, and reset.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100LEAFA#30 and MB95F572KPMC-GSE1, the UPD78F1213GB-GAF-AX delivers superior Flash endurance and deeper low-power states, making it optimal for industrial devices requiring long-term field updates and battery-backed operation - while retaining full software compatibility within the 78K0R toolchain.

Availability

UPD78F1213GB-GAF-AX is available at Aetrix Electronics and suitable for industrial motor control, smart home appliance development, and energy monitoring gateway designs requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1213GB-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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions.

The 78K0R/Ix3 product line was designed for cost-sensitive, high-reliability embedded control in industrial and consumer equipment, emphasizing Flash longevity, low-power operation, and integrated analog peripherals.

FAQ

What is the maximum operating frequency of the UPD78F1213GB-GAF-AX?

The UPD78F1213GB-GAF-AX operates at a maximum frequency of 20 MHz using its on-chip high-speed oscillator or an external crystal up to 20 MHz. This frequency enables deterministic execution of real-time control algorithms with sub-microsecond interrupt latency, validated across the full −40 °C to +85 °C temperature range and 2.7–5.5 V supply.

Does the UPD78F1213GB-GAF-AX support in-circuit debugging?

Yes, the UPD78F1213GB-GAF-AX supports single-wire background debug (BDC) via pin P140, enabling full breakpoint, register inspection, and memory read/write without halting peripheral operation. This capability is supported by Renesas' ID78K0R-QB debugger and RA78K0R assembler toolchain, eliminating the need for dedicated debug headers on production PCBs.

What is the Flash memory endurance specification for the UPD78F1213GB-GAF-AX?

The UPD78F1213GB-GAF-AX features SuperFlash® technology with guaranteed endurance of 100,000 write/erase cycles and data retention of 20 years at 85 °C. This specification is verified per Renesas' quality assurance testing and applies to all 128 KB of on-chip Flash, supporting robust field firmware updates in industrial deployments.

Can the UPD78F1213GB-GAF-AX operate from a 3.3 V supply?

Yes, the UPD78F1213GB-GAF-AX operates across a supply range of 2.7 V to 5.5 V, fully supporting 3.3 V nominal systems. At 3.3 V, it achieves 0.8 μA typical current in STOP mode and maintains full functionality of all peripherals including the 10-bit ADC, UART, and RTC - with no derating of timing or accuracy parameters.

Is there an integrated real-time clock (RTC) in the UPD78F1213GB-GAF-AX?

Yes, the UPD78F1213GB-GAF-AX includes a hardware RTC with calendar function (year/month/day/hour/minute/second), programmable alarm, and dedicated 32.768 kHz sub-clock input. The RTC continues operation in STOP mode using the sub-clock, enabling time-stamped event logging and periodic wake-up without external components.