Renesas UPD78F1500AGK-GAK-AX

Overview

UPD78F1500AGK-GAK-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/LF3 family, featuring 128 KB Flash memory, 8 KB RAM, and a maximum operating frequency of 20 MHz. It integrates a 10-bit ADC (16 channels), UART/SPI/I²C interfaces, and operates from 2.7–5.5 V supply, targeting embedded control in industrial sensors and motor drive modules.

For engineers reviewing the UPD78F1500AGK-GAK-AX datasheet, UPD78F1500AGK-GAK-AX pinout, UPD78F1500AGK-GAK-AX application, or UPD78F1500AGK-GAK-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), on-chip debug support via SWD, and compliance with industrial temperature range (−40°C to +85°C).

Technical Context

The UPD78F1500AGK-GAK-AX implements the 78K0R CPU core with 16-bit ALU, 24-bit address space, and Harvard architecture. It supports real-time interrupt handling with 16 priority levels and includes a watchdog timer with independent clock source.

On-chip peripherals include a 16-bit timer array unit (TAU) with PWM output capability, a serial interface controller (SIC) configurable as UART, CSI, or I²C, and a low-power stop mode with wake-up via external interrupt or RTC alarm.

Key Specifications

Pinout & Package

UPD78F1500AGK-GAK-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Renesas Hardware User's Manual Rev.5.01 (Jun 2011), Section 1.3.1 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 R5F100LEAFB#30 and MB9BF516RPMC, the UPD78F1500AGK-GAK-AX offers superior analog integration (VREFOUT, 16-channel ADC), native 5 V I/O tolerance, and deterministic real-time response under 20 MHz - making it optimal for industrial control nodes where mixed-signal precision and supply flexibility outweigh raw compute throughput.

Availability

UPD78F1500AGK-GAK-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, motor drive controllers, smart meter interface modules, and PLC I/O bases requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1500AGK-GAK-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 devices for automotive, industrial, and IoT markets.

The 78K0R/LF3 product line was designed for cost-effective, high-reliability embedded control in industrial automation equipment where Flash endurance, analog integration, and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the UPD78F1500AGK-GAK-AX?

The UPD78F1500AGK-GAK-AX supports a maximum system clock frequency of 20 MHz. This is achieved using the internal high-speed oscillator (HOCO) or an external crystal with PLL multiplication. At this frequency, the 78K0R CPU executes instructions with predictable timing - critical for deterministic PWM generation and ADC sampling intervals in motor control applications. The UPD78F1500AGK-GAK-AX maintains full peripheral functionality without clock gating penalties at 20 MHz.

Does the UPD78F1500AGK-GAK-AX include an internal voltage reference for the ADC?

Yes, the UPD78F1500AGK-GAK-AX provides an internal 2.5 V ±2% voltage reference output (VREFOUT) specifically for the 10-bit ADC. This pin is active only when enabled via the VREFCR register and requires a 100 nF ceramic capacitor to VSS for stability. Unlike external references, VREFOUT eliminates BOM cost and layout area while maintaining monotonicity and linearity across the industrial temperature range - a key advantage in UPD78F1500AGK-GAK-AX-based sensor front-ends.

What debug interface does the UPD78F1500AGK-GAK-AX support?

The UPD78F1500AGK-GAK-AX supports single-wire debug (SWD) via the TCK/SWDIO pin, compatible with Renesas E2 emulator and third-party tools using ARM SWD protocol. This interface enables full breakpoint, watchpoint, and memory access capabilities without requiring dedicated JTAG pins. Debug initialization occurs automatically after reset, and the UPD78F1500AGK-GAK-AX retains debug state across low-power modes - essential for validating sleep/wake behavior in battery-powered applications.

Is the UPD78F1500AGK-GAK-AX qualified for industrial temperature operation?

Yes, the UPD78F1500AGK-GAK-AX is rated for industrial temperature operation from −40°C to +85°C. Renesas specifies all electrical parameters - including Flash write endurance, ADC accuracy, and oscillator stability - across this full range. No derating is required for timing or voltage margins, and the UPD78F1500AGK-GAK-AX undergoes extended burn-in and HTOL testing per JEDEC JESD22-A108 to validate reliability at 85°C ambient.

How many serial communication interfaces does the UPD78F1500AGK-GAK-AX integrate?

The UPD78F1500AGK-GAK-AX integrates two UARTs, two SPI modules, and one I²C interface - all independently configurable and clocked. UART0 and UART1 support automatic baud-rate detection and LIN bus framing; SPI0 and SPI1 operate up to 10 Mbps with programmable phase/polarity; the I²C module complies with Fast-mode (400 kbps) and includes arbitration and clock stretching. These interfaces are mapped to dedicated pins in the UPD78F1500AGK-GAK-AX's 100-pin LQFP package without functional overlap.