Renesas UPD78F1500AGC-GAD-AX

Overview

UPD78F1500AGC-GAD-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 integrated 10-bit ADC with 24 channels. It operates at up to 20 MHz, supports on-chip debug via single-wire interface, and targets embedded control in industrial sensors and motor drives.

For engineers reviewing the UPD78F1500AGC-GAD-AX datasheet, UPD78F1500AGC-GAD-AX pinout, UPD78F1500AGC-GAD-AX application, or UPD78F1500AGC-GAD-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 UPD78F1500AGC-GAD-AX implements the 78K0R CPU core with 16-bit ALU, 24-bit address space, and Harvard architecture separating program and data memory. It integrates a 16-bit multifunction timer array (MTU) with complementary PWM output, a serial interface supporting UART, CSI, and I²C, and a hardware watchdog timer with independent clock source.

Its peripheral set includes a 10-bit ADC with sample-and-hold and programmable conversion start triggers, an on-chip voltage regulator (REGC pin) for internal 3.3 V supply generation, and dedicated LCD segment drivers (SEGxx/COMxx) usable in static or 1/4-duty mode - all mapped to specific pins confirmed in the LF3 pin configuration diagram.

Key Specifications

Pinout & Package

This device is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are fully defined per the 78K0R/LF3 specification and validated for UPD78F1500AGC-GAD-AX in Rev.5.01 of the Hardware User's Manual.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100LEAFB#30 and UPD78F1510AGC-GAD-AX, the UPD78F1500AGC-GAD-AX offers optimal balance of Flash capacity, analog integration, and display support for cost-sensitive industrial HMI applications - without CAN overhead or ultra-low-power trade-offs.

Availability

UPD78F1500AGC-GAD-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, BLDC motor controllers, smart meter interfaces, and PLC I/O modules requiring stable component supply and long-term production continuity.

Supply support for UPD78F1500AGC-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 specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The UPD78F1500AGC-GAD-AX belongs to the 78K0R/LF3 product line, designed specifically for cost-optimized, high-integration embedded control in industrial equipment where analog sensing, motor drive, and human interface coexist on a single chip.

FAQ

What is the maximum operating frequency of the UPD78F1500AGC-GAD-AX?

The UPD78F1500AGC-GAD-AX supports a maximum system clock frequency of 20 MHz using the main oscillator. With its on-chip PLL, it can generate internal clocks up to 48 MHz for selected peripherals - though the CPU core remains limited to 20 MHz operation per the 78K0R/LF3 specification. This ensures deterministic timing for real-time control loops while enabling higher-speed serial or timer operations.

Does the UPD78F1500AGC-GAD-AX include an on-chip voltage regulator?

Yes, the UPD78F1500AGC-GAD-AX features an integrated voltage regulator controlled via the REGC pin. When REGC is pulled high, the device generates an internal 3.3 V supply for core logic from the main VDD (2.7–5.5 V). This eliminates the need for an external LDO in many applications. The regulator is disabled when REGC is low or left floating, allowing direct use of externally regulated 3.3 V.

How many ADC channels does the UPD78F1500AGC-GAD-AX support, and what is its resolution?

The UPD78F1500AGC-GAD-AX integrates a 10-bit successive approximation ADC with 24 selectable input channels. It supports simultaneous sampling on up to two channels using dual-sample-and-hold circuits, and provides programmable conversion triggers via timer match, external event, or software command - making it suitable for multi-sensor acquisition in industrial monitoring systems.

Is the UPD78F1500AGC-GAD-AX pin-compatible with other devices in the 78K0R/LF3 family?

Yes, the UPD78F1500AGC-GAD-AX shares identical pinout and package (100-pin LQFP) with other 78K0R/LF3 members including μPD78F1501A and μPD78F1502A. This allows hardware reuse across variants differing in Flash size, RAM, or peripheral enablement - provided PCB layout reserves space for optional components like external crystals or LCD bias resistors used only by specific variants.

What debug interface does the UPD78F1500AGC-GAD-AX support?

The UPD78F1500AGC-GAD-AX supports Renesas' single-wire debug (SWD) interface via the RES# and TxD0 pins. This enables full-featured on-chip debugging - including breakpoints, watchpoints, register inspection, and real-time trace - without requiring dedicated debug pins. SWD is compatible with Renesas E2 emulator and third-party tools supporting the 78K0R debug protocol.