Renesas UPD78F1501AGK-GAK-AX

Overview

UPD78F1501AGK-GAK-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/LF3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and a 20 MHz max CPU clock. It integrates a 10-bit ADC (16 channels), UART, I²C, and 16-bit timer arrays, targeting embedded control in industrial sensors and motor drive interfaces.

For engineers reviewing the UPD78F1501AGK-GAK-AX datasheet, UPD78F1501AGK-GAK-AX pinout, UPD78F1501AGK-GAK-AX application, or UPD78F1501AGK-GAK-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.

Technical Context

The UPD78F1501AGK-GAK-AX implements the 78K0R CPU core with 16-bit ALU and 24-bit address space, supporting both linear and segmented memory access. It includes an on-chip voltage regulator (REGC pin) enabling single-supply operation and internal clock generation via high-speed (20 MHz) and sub-clock (32.768 kHz) oscillators.

Peripheral integration follows the 78K0R/LF3 architecture: dual UARTs with automatic baud rate detection, I²C master/slave mode with arbitration and clock stretching, and a programmable 16-bit timer array (TAU) with capture/compare, PWM output, and dead-time insertion for motor control.

Key Specifications

Pinout & Package

UPD78F1501AGK-GAK-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 Renesas 78K0R/LF3 specification and include dedicated analog inputs (AN0–AN15), serial interface pins (TXD0/RXD0, TXD1/RXD1, SCL0/SDA0), and motor control outputs (TO00–TO03, TO10–TO13).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F10PLGKSP#V0 and UPD78F1502AGK-GAK-AX, the UPD78F1501AGK-GAK-AX offers optimal balance of integrated regulation, motor timing peripherals, and industrial-grade Flash endurance - making it ideal for cost-constrained, single-supply embedded controllers where CAN is unnecessary.

Availability

UPD78F1501AGK-GAK-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor drives, smart meter gateways, and PLC I/O modules requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1501AGK-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 industrial, automotive, and infrastructure markets.

The 78K0R/LF3 product line delivers cost-optimized 16-bit MCUs with integrated analog peripherals and motor control timers for industrial automation and appliance control applications.

FAQ

What is the maximum operating frequency of the UPD78F1501AGK-GAK-AX?

The UPD78F1501AGK-GAK-AX supports a maximum CPU clock frequency of 20 MHz using its on-chip high-speed oscillator or external crystal. At this speed, the 78K0R core delivers 1.25 MIPS per MHz, achieving up to 25 MIPS performance. The device also includes a 32.768 kHz sub-clock oscillator for RTC operation during low-power STOP mode.

Does the UPD78F1501AGK-GAK-AX include an integrated voltage regulator?

Yes, the UPD78F1501AGK-GAK-AX features an on-chip voltage regulator controlled by the REGC pin. When enabled, it generates a stable 3.3 V supply from a single 5 V input, eliminating the need for an external LDO in many industrial applications. An external 10 μF capacitor must be connected to the REGC pin for proper regulation and noise suppression.

How many ADC channels does the UPD78F1501AGK-GAK-AX support, and what is their resolution?

The UPD78F1501AGK-GAK-AX integrates a 10-bit successive approximation ADC with 16 input channels (AN0–AN15). Conversion time is 1.1 μs per sample, and integral nonlinearity is specified at ±2 LSB. Channels can be scanned automatically via timer trigger or software start, and results are stored in dedicated SFRs for deterministic real-time processing.

What low-power modes are supported by the UPD78F1501AGK-GAK-AX?

The UPD78F1501AGK-GAK-AX supports three low-power modes: HALT (CPU stopped, peripherals active), STOP (CPU and most peripherals halted, RTC and backup RAM retained), and SNOOZE (peripheral-triggered wake-up with minimal latency). In STOP mode with RTC running, current consumption is ≤0.35 μA - verified per Renesas test conditions at 25°C and 3.3 V supply.

Is the UPD78F1501AGK-GAK-AX pin-compatible with other members of the 78K0R/LF3 family?

The UPD78F1501AGK-GAK-AX shares the same 64-pin LQFP package and pinout with UPD78F1500A and UPD78F1502A within the 78K0R/LF3 group. However, functional differences exist - for example, UPD78F1502A adds CAN and extra ADC channels. Pin compatibility enables shared PCB layouts, but firmware and peripheral initialization must be validated per device variant.