Renesas UPD78F1146AGA(R)-HAB-AX

Overview

UPD78F1146AGA(R)-HAB-AX from Renesas Electronics is a 16-bit single-chip microcontroller in the 78K0R/KE3 family, featuring 128 KB on-chip Flash memory, 8 KB RAM, and integrated peripherals including 10-bit ADC (16 channels), UART, I²C, and 16-bit timer arrays. It operates at up to 20 MHz with supply voltage range 2.7–5.5 V and targets embedded control in industrial sensors and motor drive interfaces.

For engineers reviewing the UPD78F1146AGA(R)-HAB-AX datasheet, UPD78F1146AGA(R)-HAB-AX pinout, UPD78F1146AGA(R)-HAB-AX application, or UPD78F1146AGA(R)-HAB-AX equivalent, key selection considerations include Flash endurance (100k write/erase cycles), operating temperature range (−40°C to +85°C), and support for on-chip debug via single-wire interface (SWI).

Technical Context

The UPD78F1146AGA(R)-HAB-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 programmable low-voltage detection (LVD) circuit with 4 selectable thresholds and supports multiple clock sources: main system clock (up to 20 MHz), sub-clock (32.768 kHz), and on-chip oscillator (1 MHz).

Peripheral integration includes a 16-bit multifunction timer (TM00–TM03) with input capture, output compare, and PWM generation; a serial array unit (SAU) configurable as UART, CSI, or I²C; and an 8-channel 10-bit successive-approximation ADC with sample-and-hold and internal reference (2.5 V).

Key Specifications

Pinout & Package

UPD78F1146AGA(R)-HAB-AX is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment follows Renesas' standard 78K0R/KE3 layout optimized for noise immunity and mixed-signal routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F100LGAFB#30 and MB95560PFT-G-SNE1, the UPD78F1146AGA(R)-HAB-AX delivers balanced performance for industrial control: its hardware CRC accelerates communication integrity checks, SWI simplifies production test, and LVD thresholds align directly with common 3.3 V/5 V rail monitoring needs.

Availability

UPD78F1146AGA(R)-HAB-AX is available at Aetrix Electronics and suitable for industrial sensor nodes, brushless DC motor controllers, and smart power meter interfaces requiring stable component supply across multi-year production cycles.

Supply support for UPD78F1146AGA(R)-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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The UPD78F1146AGA(R)-HAB-AX belongs to the 78K0R/KE3 product line, designed specifically for cost-sensitive, high-reliability industrial control applications where deterministic real-time response and long-term supply stability are critical.

FAQ

What is the maximum operating frequency of the UPD78F1146AGA(R)-HAB-AX?

The UPD78F1146AGA(R)-HAB-AX supports a maximum system clock frequency of 20 MHz. This is achieved using the main system clock source, which may be an external crystal (1–20 MHz), ceramic resonator, or the on-chip oscillator (1 MHz, trimmed to ±2%). At 20 MHz, the device executes instructions with a 50 ns cycle time, enabling precise timing for motor control and sensor sampling loops. The UPD78F1146AGA(R)-HAB-AX maintains full functionality across its specified voltage range (2.7–5.5 V) at this speed.

Does the UPD78F1146AGA(R)-HAB-AX support in-system programming (ISP)?

Yes, the UPD78F1146AGA(R)-HAB-AX supports in-system programming via its on-chip ROM-resident bootloader, accessible through the single-wire interface (SWI). This allows firmware updates without removing the device from the PCB. Programming is performed using Renesas' Flash development toolkit (FDK) and compatible programmers such as PG-FP5. The UPD78F1146AGA(R)-HAB-AX requires no external high-voltage supply - all programming voltages are generated internally. Secure boot and flash lock bits prevent unauthorized reprogramming.

What is the ADC resolution and channel count of the UPD78F1146AGA(R)-HAB-AX?

The UPD78F1146AGA(R)-HAB-AX integrates a 10-bit successive-approximation ADC with 16 input channels. It supports both single-ended and differential input modes, includes a sample-and-hold circuit, and uses an internal 2.5 V reference (also configurable for external reference). Conversion time is 1.5 µs per sample at maximum clock rate. The UPD78F1146AGA(R)-HAB-AX ADC features hardware-triggered sampling synchronized to timer events - essential for motor current sensing and vibration analysis.

Is the UPD78F1146AGA(R)-HAB-AX pin-compatible with other members of the 78K0R/KE3 family?

The UPD78F1146AGA(R)-HAB-AX shares the same 64-pin LQFP package and pinout with other 78K0R/KE3 devices in the μPD78F114xA series (e.g., UPD78F1142AGA(R)-HAB-AX, UPD78F1143AGA(R)-HAB-AX), enabling hardware reuse across designs with different Flash/RAM configurations. However, it is not pin-compatible with earlier μPD78F114x conventional-specification variants due to differences in peripheral mapping and power pin allocation. The UPD78F1146AGA(R)-HAB-AX pinout is documented in Section 1.5 of User's Manual U17854EJ9V0UD.

What debug interface does the UPD78F1146AGA(R)-HAB-AX provide?

The UPD78F1146AGA(R)-HAB-AX provides a single-wire interface (SWI) for on-chip debugging, supporting full breakpoint, step, and memory inspection capabilities without requiring dedicated JTAG pins. This interface is electrically compatible with Renesas' E1/E20 emulators and QB-MINI2 debug probes. The UPD78F1146AGA(R)-HAB-AX SWI uses only one dedicated pin (SWI) plus VDD and VSS, minimizing PCB routing complexity and eliminating the need for level shifters in 3.3 V systems.