Renesas UPD78F0547DAGC-GAD-AX

Overview

UPD78F0547DAGC-GAD-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KF2 family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and a 16-bit timer/counter with PWM output capability. It operates at up to 20 MHz using an external crystal (1–20 MHz) or internal high-speed oscillator (8 MHz), supports 10-bit ADC with 12 channels, and targets embedded control applications requiring deterministic real-time response and low-power operation.

For engineers reviewing the UPD78F0547DAGC-GAD-AX datasheet, UPD78F0547DAGC-GAD-AX pinout, UPD78F0547DAGC-GAD-AX application, or UPD78F0547DAGC-GAD-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), A/D conversion time (≤1.2 μs per channel), operating voltage range (2.7–5.5 V), and support for I²C, UART, and CSI serial interfaces in a 100-pin LQFP package.

Technical Context

The UPD78F0547DAGC-GAD-AX implements the 78K0 CPU core with 16-bit address space and 8-bit data path, executing instructions in one to four clock cycles. It integrates a 16-bit multifunction timer (TM00–TM03), watchdog timer, and power-on reset circuit with built-in voltage detector (2.5 V threshold).

Its peripheral set includes a 10-bit successive-approximation ADC with sample-and-hold, programmable gain amplifier input option, and dedicated hardware multiplier/divider unit supporting 16×16→32-bit multiplication and 32÷16→16-bit division in fixed-clock cycles - enabling efficient motor control loop computation without software overhead.

Key Specifications

Pinout & Package

UPD78F0547DAGC-GAD-AX is housed in a 100-pin LQFP (14 × 14 mm, 0.5 mm pitch) with exposed thermal pad (GND-connected) for enhanced thermal dissipation in industrial ambient conditions. Pin functions conform to Renesas' 78K0/KF2 standard layout, including dedicated ports P0–P7, P12–P14, analog inputs (AN0–AN11), serial interface signals (CSI0–CSI2, I²C, UART), and system control pins (RESET, FLMD0, REGC).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with UPD78F0547DAGC-GAD-AX, R5F104PJAFB#50 offers lower power and modern toolchain support but lacks hardware division and has smaller Flash; UPD78F0537DAGC-GAD-AX provides identical timing, peripherals, and pin compatibility at reduced memory capacity - enabling seamless migration for memory-constrained implementations.

Availability

UPD78F0547DAGC-GAD-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and appliance main control boards requiring stable component supply across multi-year production cycles.

Supply support for UPD78F0547DAGC-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The UPD78F0547DAGC-GAD-AX belongs to the 78K0/KF2 product line, designed specifically for cost-effective, high-reliability embedded control in industrial equipment, factory automation, and white goods where deterministic real-time performance and long-term supply stability are essential.

FAQ

What is the maximum operating frequency of the UPD78F0547DAGC-GAD-AX?

The UPD78F0547DAGC-GAD-AX supports a maximum system clock frequency of 20 MHz when using an external crystal oscillator in the 1–20 MHz range. It also includes an internal high-speed oscillator rated at 8 MHz, which can be used without external components for reduced BOM cost and board space. Both clock sources are fully supported by the device's PLL-free architecture and meet AC timing specifications across the full 2.7–5.5 V supply range.

Does the UPD78F0547DAGC-GAD-AX include hardware support for mathematical operations?

Yes, the UPD78F0547DAGC-GAD-AX integrates a dedicated hardware multiplier/divider unit capable of performing 16×16→32-bit multiplication and 32÷16→16-bit division in fixed clock cycles - typically 2–3 cycles for multiply and 12–19 cycles for divide. This eliminates software loop overhead in control algorithms and enables deterministic execution time for motor control and PID computations, unlike general-purpose 8-bit MCUs that rely on library-based arithmetic.

What are the Flash memory endurance and data retention specifications for the UPD78F0547DAGC-GAD-AX?

The UPD78F0547DAGC-GAD-AX features 64 KB of on-chip Flash memory rated for 100,000 write/erase cycles and guaranteed data retention of 20 years at +85°C ambient temperature. These values are specified in Renesas' official 78K0/KF2 hardware manual (Rev. 4.01, Jul 2010) and apply to the UPD78F0547DAGC-GAD-AX under standard operating conditions with proper erase/write sequencing per the self-programming library guidelines.

Which serial communication interfaces are integrated into the UPD78F0547DAGC-GAD-AX?

The UPD78F0547DAGC-GAD-AX integrates three CSI (clocked serial interface) modules, one I²C bus interface, and two UART channels (UART0 and UART1). CSI supports master/slave SPI-like operation with programmable clock polarity and phase; I²C supports standard-mode (100 kbps) and fast-mode (400 kbps); UARTs include framing error detection, break detection, and automatic baud rate generation. All interfaces share dedicated pins mapped to Ports 0–3 and operate concurrently without resource conflict.

Is the UPD78F0547DAGC-GAD-AX pin-compatible with other members of the 78K0/KF2 family?

Yes, the UPD78F0547DAGC-GAD-AX is pin-compatible with other 100-pin LQFP variants in the 78K0/KF2 family, including UPD78F0544DAGC-GAD-AX, UPD78F0545DAGC-GAD-AX, and UPD78F0546DAGC-GAD-AX. Pin mapping for power, ground, reset, clock, and all I/O ports is identical across these devices; differences are limited to internal Flash size (48–64 KB), RAM allocation, and minor peripheral enablement - allowing shared PCB layouts and simplified BOM management.