Renesas UPD78F1502AGC-GAD-AX

Overview

UPD78F1502AGC-GAD-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/LF3 family, featuring 128 KB on-chip Flash, 8 KB RAM, and integrated 10-bit ADC with 24 channels. It operates at up to 20 MHz, supports I²C, UART, and CSI interfaces, and targets industrial control and sensor interface applications.

For engineers reviewing the UPD78F1502AGC-GAD-AX datasheet, UPD78F1502AGC-GAD-AX pinout, UPD78F1502AGC-GAD-AX application, or UPD78F1502AGC-GAD-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), operating voltage range (2.7–5.5 V), and support for low-power modes including HALT and STOP with wake-up via external interrupt or RTC.

Technical Context

The UPD78F1502AGC-GAD-AX implements the 78K0R CPU core with 16-bit architecture, Harvard memory structure, and instruction set compatible with earlier 78K0 devices. It integrates a 32-bit programmable watchdog timer, 16-bit multifunction timer array (MTU), and real-time clock (RTC) with calendar function.

On-chip peripherals include a 10-bit ADC with sample-and-hold and built-in reference voltage (VREFOUT), a 12-bit DAC channel, and a 4-channel PWM generator with dead-time insertion. The device supports boot flash swapping and secure code protection via on-chip lock bits.

Key Specifications

Pinout & Package

UPD78F1502AGC-GAD-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 UPD78F1502AGC-GAD-AX, R5F100LEAFB#30 offers superior active power efficiency but sacrifices analog integration and display support, while UPD78F1501AGC-GAD-AX provides identical functionality at lower memory capacity - enabling seamless migration within the same hardware platform.

Availability

UPD78F1502AGC-GAD-AX is available at Aetrix Electronics and suitable for industrial automation, smart metering, and motor control applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for UPD78F1502AGC-GAD-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 automotive, industrial, and IoT markets.

The 78K0R/LF3 product line - including UPD78F1502AGC-GAD-AX - was designed for cost-sensitive, high-reliability industrial control applications requiring rich analog integration, deterministic real-time performance, and long-lifecycle availability.

FAQ

What is the maximum operating frequency of the UPD78F1502AGC-GAD-AX?

The UPD78F1502AGC-GAD-AX supports a maximum system clock frequency of 20 MHz when using the on-chip PLL; without PLL, the maximum external crystal or ceramic resonator frequency is 16 MHz. The CPU executes instructions at 1/2 or 1/4 clock division depending on configuration, delivering up to 10 MIPS at 20 MHz. All timing specifications in the Renesas Hardware User's Manual Rev.5.01 assume operation within this frequency limit and specified voltage/temperature ranges.

Does the UPD78F1502AGC-GAD-AX include hardware debug support?

Yes, the UPD78F1502AGC-GAD-AX integrates on-chip debugging circuitry compatible with Renesas QB-MINI2 and ID78K0R-QB tools. It supports breakpoints, watchpoints, register inspection, and flash programming via single-wire SWD interface. Debug access remains functional even when code protection is enabled, though protected Flash content cannot be read out - ensuring secure development and production programming workflows for UPD78F1502AGC-GAD-AX.

What is the Flash endurance rating for UPD78F1502AGC-GAD-AX?

The UPD78F1502AGC-GAD-AX specifies 100,000 write/erase cycles for its 128 KB on-chip Flash memory under standard operating conditions (Ta = 25°C, VDD = 5.0 V). Endurance is validated per JEDEC JESD22-A117 and applies to individual sectors. Wear leveling must be implemented in firmware for applications requiring frequent updates; Renesas provides example IAP routines in Application Note U18527E for UPD78F1502AGC-GAD-AX.

Can the UPD78F1502AGC-GAD-AX operate from a 3.3 V supply?

Yes, the UPD78F1502AGC-GAD-AX operates across a 2.7 V to 5.5 V supply range, making it fully compatible with 3.3 V systems. At 3.3 V, maximum operating frequency is 16 MHz (PLL disabled); all I/O pins are 5 V tolerant when configured as inputs, allowing safe interfacing with mixed-voltage peripherals. Electrical characteristics including ADC accuracy and oscillator stability are guaranteed across this full voltage range per Renesas datasheet specifications for UPD78F1502AGC-GAD-AX.

Is there an integrated temperature sensor in the UPD78F1502AGC-GAD-AX?

No, the UPD78F1502AGC-GAD-AX does not include a factory-calibrated on-die temperature sensor. However, its 10-bit ADC can measure external thermistors or diode-based sensors connected to any of the 24 analog input channels (AN0–AN23). The device provides internal reference voltage (VREFOUT = 2.5 V) and dedicated AVDD/AVSS power pins to ensure stable analog measurement - enabling accurate temperature monitoring when paired with appropriate external sensing elements for UPD78F1502AGC-GAD-AX.