Renesas UPD78F0532AGB-GAH-AX

Overview

UPD78F0532AGB-GAH-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/KE2 family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and a 16-bit timer with PWM output. It operates at up to 20 MHz using an external crystal or internal high-speed oscillator and supports 5V operation for industrial control applications including motor drive interfaces and sensor-based monitoring systems.

For engineers reviewing the UPD78F0532AGB-GAH-AX datasheet, UPD78F0532AGB-GAH-AX pinout, UPD78F0532AGB-GAH-AX application, or UPD78F0532AGB-GAH-AX equivalent, key selection criteria include Flash endurance (100,000 write/erase cycles), A/D conversion time (1.2 μs per channel), interrupt response latency (3–5 instruction cycles), and support for I²C and UART peripheral interfaces in a 64-pin LQFP package.

Technical Context

The UPD78F0532AGB-GAH-AX implements the 78K0 CPU core with 16-bit address space and Harvard architecture, supporting both conventional-specification and expanded-specification features depending on variant suffix. Its on-chip peripherals include a 10-bit A/D converter with 16 input channels, three 16-bit timers (two with complementary PWM outputs), and serial interfaces (UART, I²C, CSI) with programmable baud rates.

Power management includes HALT, STOP, and IDLE modes with wake-up via external interrupt or timer event. The device uses a dual-supply structure (VDD/EVDD = 5 V, AVREF = 5 V) and integrates a voltage regulator control pin (REGC) for internal LDO enable/disable, enabling stable analog performance during low-power operation.

Key Specifications

Pinout & Package

UPD78F0532AGB-GAH-AX is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions follow Renesas' 78K0/KE2 standard layout, including dedicated reset (RESET), oscillator (X1/X2), power (VDD, EVDD, VSS, EVSS, AVREF, AVSS), and peripheral I/O groups across ports P0–P7 and P12–P14.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0532AGB-GAH-AX, R5F100PLAFB#30 offers superior low-power performance but sacrifices analog subsystem flexibility, while UPD78F0533AGB-GAH-AX provides direct scalability in Flash capacity without changing PCB layout or driver code.

Availability

UPD78F0532AGB-GAH-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor node development, and home appliance UI controller designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for UPD78F0532AGB-GAH-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 manufacturer headquartered in Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The UPD78F0532AGB-GAH-AX belongs to the 78K0/Kx2 product line, designed specifically for cost-sensitive, high-reliability 8-bit embedded control applications demanding robust analog integration, deterministic real-time response, and long-lifecycle availability in industrial environments.

FAQ

What is the maximum operating frequency of the UPD78F0532AGB-GAH-AX?

The UPD78F0532AGB-GAH-AX supports a maximum operating frequency of 20 MHz. This can be achieved using either an external crystal oscillator (X1/X2 pins, 1–20 MHz range) or the internal high-speed oscillator (HSO) calibrated to 20 MHz ±2%. Instruction cycle time is 50 ns at 20 MHz, enabling deterministic timing for real-time control loops.

Does the UPD78F0532AGB-GAH-AX support in-system programming (ISP)?

Yes, the UPD78F0532AGB-GAH-AX supports in-system programming via its on-chip Flash memory and built-in self-programming library. Using the UART or CSI interface, firmware updates can be performed without removing the device from the target board. The UPD78F0532AGB-GAH-AX requires no external high-voltage programming signal - all necessary voltages are generated internally during write/erase operations.

What are the power supply requirements for the UPD78F0532AGB-GAH-AX analog section?

The UPD78F0532AGB-GAH-AX analog section requires AVREF and AVSS connections. AVREF must be supplied between 4.0 V and 5.5 V and serves as the reference voltage for the 10-bit A/D converter. AVSS must be connected to the system ground (0 V) and should be routed separately from digital ground to minimize noise coupling. The device does not include an internal voltage reference; external stability is critical for A/D accuracy.

How many A/D input channels does the UPD78F0532AGB-GAH-AX support?

The UPD78F0532AGB-GAH-AX supports 16 A/D input channels mapped across ports P14–P17 and P120–P124. All channels share a single 10-bit successive-approximation A/D converter with conversion time of 1.2 μs per channel. Input voltage range is 0 V to AVREF, and sampling can be triggered by software, timer overflow, or external event via the peripheral event controller.

Is the UPD78F0532AGB-GAH-AX pin-compatible with other 78K0/KE2 devices?

Yes, the UPD78F0532AGB-GAH-AX is pin-compatible with other 64-pin LQFP variants in the 78K0/KE2 family, including UPD78F0531AGB-GAH-AX, UPD78F0533AGB-GAH-AX, and UPD78F0534AGB-GAH-AX. All share identical pin assignments for power, reset, oscillator, and I/O ports. Differences lie in Flash size (64 KB vs. 32/96/128 KB) and peripheral configuration - no PCB change is required when upgrading within this footprint.