Renesas UPD78F0535AGA-HAB-AX

Overview

UPD78F0535AGA-HAB-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 array unit (TAU) with PWM output capability. It operates at up to 20 MHz using an external crystal or internal high-speed oscillator, supports 10-bit ADC with 16 channels, and targets embedded control in industrial and consumer applications requiring deterministic real-time response.

For engineers reviewing the UPD78F0535AGA-HAB-AX datasheet, UPD78F0535AGA-HAB-AX pinout, UPD78F0535AGA-HAB-AX application, or UPD78F0535AGA-HAB-AX equivalent, key selection criteria include its 64-pin LQFP package, 10-bit ADC resolution and channel count, TAU-based PWM timing precision, flash endurance (10,000 write/erase cycles), and support for on-chip debug via single-wire interface.

Technical Context

The UPD78F0535AGA-HAB-AX implements the 78K0 CPU core with 16-bit addressing, supporting 131 instructions and a 1- to 12-clock-cycle execution model. Its peripheral set includes a serial interface (UART/SIO), I²C-compatible serial array unit (SAU), watchdog timer (WDT), and voltage monitor (LVI) with four selectable detection levels.

It integrates a 10-bit successive-approximation ADC with sample-and-hold, programmable conversion start triggers (software, timer, external pin), and built-in reference voltage (1.45 V ±5%). The TAU provides six 16-bit timers with complementary PWM outputs, dead-time insertion, and synchronous reload - enabling motor control and power supply regulation without external logic.

Key Specifications

Pinout & Package

This device is housed in a 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined per Renesas 78K0/KE2 hardware specification Rev.4.01.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0535AGA-HAB-AX, R5F104PJAFB#30 reduces active current but removes integrated voltage regulation and flash endurance guarantees, whereas UPD78F0537AGA-GAH-AX preserves full functional and timing compatibility while expanding memory headroom - making it the only drop-in scalable alternative.

Availability

UPD78F0535AGA-HAB-AX is available at Aetrix Electronics and suitable for industrial motor control, home appliance MCU, smart power metering, and factory automation I/O modules requiring stable component supply across multi-year production cycles.

Supply support for UPD78F0535AGA-HAB-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 78K0/KE2 product line delivers cost-optimized, high-reliability 8-bit MCUs targeting deterministic real-time control in appliances, industrial equipment, and metering - with emphasis on integrated analog peripherals and robust debug capabilities.

FAQ

What is the maximum operating frequency of the UPD78F0535AGA-HAB-AX?

The UPD78F0535AGA-HAB-AX supports a maximum system clock frequency of 20 MHz when using an external crystal or the internal high-speed oscillator. This frequency applies to both instruction execution and peripheral operation, including the 16-bit TAU timers and 10-bit ADC conversion timing, ensuring deterministic real-time performance in motor control and power regulation applications.

Does the UPD78F0535AGA-HAB-AX include an internal voltage regulator?

Yes, the UPD78F0535AGA-HAB-AX includes an on-chip voltage regulator controlled by the REGC pin. When enabled, it generates a stable 3.3 V supply for the core logic from VDD inputs ≥ 4.0 V, reducing external component count and improving noise immunity in mixed-signal applications such as smart meters and appliance control boards.

How many ADC channels does the UPD78F0535AGA-HAB-AX support, and what is its reference voltage?

The UPD78F0535AGA-HAB-AX supports 16 analog input channels for its 10-bit successive-approximation ADC. It uses an internal reference voltage of 1.45 V ±5% by default, but also accepts external references between 1.45 V and 5.5 V via the AVREF pin - enabling flexible scaling for precision current sensing or thermistor measurements in industrial environments.

Can the UPD78F0535AGA-HAB-AX perform in-application programming (IAP) of its flash memory?

Yes, the UPD78F0535AGA-HAB-AX supports full in-application programming via its self-programming library. This allows firmware updates over UART or other interfaces without external programmers, with guaranteed 10,000 write/erase cycles and 20-year data retention - critical for field-upgradable devices like smart meters and networked appliances using UPD78F0535AGA-HAB-AX.

What debug interface does the UPD78F0535AGA-HAB-AX provide, and how many pins does it require?

The UPD78F0535AGA-HAB-AX provides a single-wire debug (SWD) interface compatible with Renesas E1/E20 emulators. It requires only one dedicated pin (RES#) plus VSS, eliminating the need for additional debug headers and preserving all GPIO for application use - simplifying PCB layout and reducing BOM cost in space-constrained designs using UPD78F0535AGA-HAB-AX.