Renesas UPD78F0753MC-CAA-AX

Overview

UPD78F0753MC-CAA-AX from Renesas Electronics is an 8-bit CMOS microcontroller in the 78K0/IA2 family, featuring 64 KB on-chip Flash memory, 4 KB RAM, and a 20 MHz max CPU clock. It integrates 16-bit timers X0/X1, 16-bit timer/event counter TM00, 8-bit timers T51/H1, watchdog timer, and 10-bit ADC with 16 channels. Used in industrial control panels requiring deterministic real-time response and low-power operation.

For engineers reviewing the UPD78F0753MC-CAA-AX datasheet, UPD78F0753MC-CAA-AX pinout, UPD78F0753MC-CAA-AX application, or UPD78F0753MC-CAA-AX equivalent, key selection criteria include Flash endurance (100k write/erase cycles), internal high-speed oscillator accuracy (±1%), 30-pin SSOP package compatibility, and support for I²C-compatible serial interface via port pins.

Technical Context

The UPD78F0753MC-CAA-AX implements the 78K0 CPU core with 16-bit address space and 8-bit data path, supporting 131 instructions including bit manipulation and conditional jumps. Clock generation includes selectable sources: external crystal (1–20 MHz), internal high-speed oscillator (20 MHz ±1%), internal low-speed oscillator (15 kHz), and PLL for frequency multiplication.

Peripheral integration includes three independent 16-bit timer units (X0, X1, TM00) with PWM, capture/compare, and high-impedance output control; one 8-bit timer/event counter (T51); one 8-bit carrier generator timer (H1); and a 10-bit successive-approximation ADC with sample-and-hold and scan mode across 16 input channels.

Key Specifications

Pinout & Package

The UPD78F0753MC-CAA-AX is housed in a 30-pin SSOP (Shrink Small Outline Package) with 0.65 mm lead pitch, optimized for compact industrial PCB layouts and reflow soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UPD78F0753MC-CAA-AX, R5F100BGSP#30 offers superior ultra-low-power performance but requires software migration due to different instruction set and register map; UPD78F0743MC-CAA-AX provides true pin-and-code compatibility with 16 KB less Flash, enabling direct substitution in memory-constrained legacy designs.

Availability

UPD78F0753MC-CAA-AX is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, PLC I/O modules, and home appliance control boards requiring stable component supply and long-term manufacturing continuity.

Supply support for UPD78F0753MC-CAA-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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.

The UPD78F0753MC-CAA-AX belongs to the 78K0/Ix2 series - designed specifically for cost-sensitive, real-time embedded control applications demanding high reliability, low power, and integrated analog peripherals in compact packages.

FAQ

What is the maximum operating frequency of the UPD78F0753MC-CAA-AX?

The UPD78F0753MC-CAA-AX supports a maximum system clock frequency of 20 MHz, achievable using the internal high-speed oscillator (±1% accuracy), external crystal (up to 20 MHz), or PLL-multiplied clock. At this frequency, the CPU executes instructions with a minimum cycle time of 100 ns, enabling deterministic real-time response for motor control and sensor acquisition tasks.

Does the UPD78F0753MC-CAA-AX include an integrated ADC?

Yes, the UPD78F0753MC-CAA-AX integrates a 10-bit successive-approximation ADC with 16 selectable analog input channels (AN0–AN15). It supports hardware scan mode, automatic channel sequencing, and conversion times as fast as 1.2 µs - eliminating CPU polling overhead and enabling synchronized multi-sensor sampling in applications like environmental monitoring and motor current sensing.

What package type is used for the UPD78F0753MC-CAA-AX?

The UPD78F0753MC-CAA-AX is supplied in a 30-pin SSOP (Shrink Small Outline Package) with 7.6 mm × 10.2 mm body dimensions and 0.65 mm lead pitch. This RoHS-compliant surface-mount package supports standard reflow soldering profiles and is optimized for high-density industrial PCB layouts where thermal performance and board space are constrained.

Can the UPD78F0753MC-CAA-AX operate from a single 3.3 V supply?

No - the UPD78F0753MC-CAA-AX requires a supply voltage between 2.7 V and 5.5 V. When powered from 3.3 V, the internal voltage regulator (enabled via REGC pin) remains inactive, and all I/Os operate at 3.3 V logic levels. The device maintains full functionality including ADC, timers, and Flash programming, provided VDD stays within specification and decoupling capacitors meet Renesas' recommended layout guidelines.

Is on-chip debug supported for the UPD78F0753MC-CAA-AX?

Yes, the UPD78F0753MC-CAA-AX supports full on-chip debugging via the single-wire debug interface (SWD) using Renesas' QB-MINI2 emulator. This enables real-time breakpoints, register inspection, Flash programming, and trace capabilities without requiring additional debug headers or external JTAG adapters - simplifying development and field firmware updates for the UPD78F0753MC-CAA-AX.