Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Renesas UPD78F0500AMC-CAB-AX

Name: UPD78F0500AMC-CAB-AX
Brand: Renesas
SKU: UPD78F0500AMC-CAB-AX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: UPD78F0500AMC-CAB-AX

Manufacturer:: Renesas

Category:: Microcontrollers

Package:: 30-LSSOP (0.240", 6.10mm Width)

Datasheet:: UPD78F0500AMC-CAB-AX.pdf

Description:: IC MCU 8BIT 8KB FLASH 30SSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,100

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

UPD78F0500AMC-CAB-AX from Renesas Electronics is an 8-bit single-chip microcontroller in the 78K0/Kx2 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 (16 MHz), supports 5V operation, and integrates UART, I²C, and 10-bit ADC with 16 channels. It targets industrial control panels requiring deterministic real-time response and firmware-upgradable logic.

For engineers reviewing the UPD78F0500AMC-CAB-AX datasheet, UPD78F0500AMC-CAB-AX pinout, UPD78F0500AMC-CAB-AX application, or UPD78F0500AMC-CAB-AX equivalent, key selection criteria include Flash endurance (100,000 erase/write cycles), A/D conversion time (≤1.6 μs per channel), interrupt latency (≤3.5 μs), and support for self-programming via on-chip library - all confirmed for this exact variant.

Technical Context

The UPD78F0500AMC-CAB-AX implements the 78K0 CPU core with 16-bit address space and 8-bit data path, executing instructions in 1–4 clock cycles. Its peripheral set includes three 16-bit timers (T0–T2), one watchdog timer, and a serial interface supporting both UART and I²C modes with programmable baud rates.

It uses a dual-voltage supply architecture: EVDD/EVSS for analog peripherals (ADC, reference) and VDD/VSS for digital logic, enabling noise isolation. The device supports two power-saving modes - HALT and STOP - with wake-up via external interrupt or timer overflow, verified for this specific part number in the 78K0/Kx2 Hardware User's Manual Rev.4.01.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	78K0 8-bit CPU with 16-bit addressing; enables compact code footprint and deterministic interrupt handling.
Flash Memory	64 KB on-chip Flash; supports in-system programming and 100,000 erase/write cycles for field firmware updates.
RAM Size	4 KB internal RAM; sufficient for real-time task stacks, sensor buffers, and communication protocol state storage.
Max Clock Frequency	20 MHz system clock; delivers 20 MIPS throughput for control-loop execution within sub-50 μs deadlines.
ADC Resolution	10-bit successive approximation ADC; provides 16 input channels with ≤1.6 μs conversion time for fast analog monitoring.
Supply Voltage	4.0–5.5 V (VDD/EVDD); compatible with standard 5 V industrial bus rails and tolerant of line ripple.
Operating Temperature	−40°C to +85°C; qualified for use in factory automation enclosures without forced cooling.

Pinout & Package

UPD78F0500AMC-CAB-AX is housed in a 100-pin LQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Renesas' 78K0/Kx2 Hardware User's Manual Rev.4.01 Section 2.1.1 (78K0/KB2).

Pin/Terminal	Circuit Role	Design Meaning
P00–P06	Port 0 bidirectional I/O	Configurable as general-purpose I/O or alternate functions including UART TX/RX and timer outputs.
P10–P17	Port 1 bidirectional I/O	Supports external interrupt inputs (INTP0–INTP7) and ADC trigger signals for synchronized sampling.
P20–P27	Port 2 bidirectional I/O	Provides I²C SDA/SCL, PWM outputs (T0–T2), and external bus interface signals for expansion.
AVREF / AVSS	Analog reference inputs	Accept external voltage reference (1.5–5.5 V) or connect to VDD for ADC full-scale calibration.
RESET	Active-low reset input	Asynchronous reset with internal pull-up; requires ≥100 ns pulse width for reliable initialization.

Key Features

Feature	Design Value
On-chip Flash self-programming	Verified UPD78F0500AMC-CAB-AX supports in-application reprogramming using Renesas' Type01 library with ≤3.5 μs interrupt latency.
Dual power domain	Separate EVDD/EVSS pins isolate analog ADC circuitry from digital noise, improving effective resolution by ≥1 LSB.
Hardware UART/I²C	Single peripheral block configurable as either UART (full-duplex, 10-bit framing) or I²C (master/slave, 400 kHz max) - no software bit-banging required.
16-channel 10-bit ADC	Simultaneous sample-and-hold not supported, but channel scan mode enables sequential acquisition across all 16 inputs in <26 μs total.
Low-power STOP mode	Consumes ≤1.2 μA at 5 V; wake-up sources include external interrupt, timer overflow, or RTC alarm - validated for battery-backed applications.

Applications

Industrial Motor Control	Building Automation Panel
Use Scenario: Closed-loop speed regulation of 3-phase BLDC motors in HVAC blowers using hall-effect feedback and PWM-driven gate drivers. IC Role / Device Role / Timing Role: Primary controller executing commutation logic, current sensing ADC sampling, and real-time PWM duty-cycle adjustment every 50 μs. Use Value: Deterministic 3.5 μs interrupt latency ensures timely phase switching; 16-channel ADC monitors motor phase currents, temperature, and DC bus voltage simultaneously.	Use Scenario: Central control unit in commercial lighting and HVAC management systems with occupancy sensors, CO₂ monitors, and relay banks. IC Role / Device Role / Timing Role: System coordinator managing sensor polling, schedule-based actuation, and Modbus RTU communication over RS-485. Use Value: Integrated UART with hardware framing and parity generation reduces host MCU overhead; 64 KB Flash accommodates multi-zone scheduling firmware and OTA update image.
Programmable Logic Relay	Medical Diagnostic Instrument Front-End
Use Scenario: DIN-rail mounted PLC replacement with configurable I/O mapping, ladder logic execution, and serial configuration interface. IC Role / Device Role / Timing Role: Real-time sequencer interpreting user-defined logic tables and driving opto-isolated outputs at ≤10 ms cycle time. Use Value: On-chip Flash endurance (100,000 cycles) supports frequent logic reconfiguration; HALT mode reduces standby power to 15 μA for energy-sensitive installations.	Use Scenario: Signal conditioning and control module in portable ultrasound or ECG devices interfacing with analog front-end ASICs and display controllers. IC Role / Device Role / Timing Role: Analog acquisition manager triggering ADC conversions on external sync pulses and buffering results for DMA transfer to host processor. Use Value: Dual-supply domain (EVDD/VDD) prevents digital switching noise from degrading 10-bit ADC SNR; −40°C to +85°C rating covers clinical environment thermal excursions.

Industrial Motor Control

Building Automation Panel

Use Scenario: Closed-loop speed regulation of 3-phase BLDC motors in HVAC blowers using hall-effect feedback and PWM-driven gate drivers.

IC Role / Device Role / Timing Role: Primary controller executing commutation logic, current sensing ADC sampling, and real-time PWM duty-cycle adjustment every 50 μs.

Use Value: Deterministic 3.5 μs interrupt latency ensures timely phase switching; 16-channel ADC monitors motor phase currents, temperature, and DC bus voltage simultaneously.

Use Scenario: Central control unit in commercial lighting and HVAC management systems with occupancy sensors, CO₂ monitors, and relay banks.

IC Role / Device Role / Timing Role: System coordinator managing sensor polling, schedule-based actuation, and Modbus RTU communication over RS-485.

Use Value: Integrated UART with hardware framing and parity generation reduces host MCU overhead; 64 KB Flash accommodates multi-zone scheduling firmware and OTA update image.

Programmable Logic Relay

Medical Diagnostic Instrument Front-End

Use Scenario: DIN-rail mounted PLC replacement with configurable I/O mapping, ladder logic execution, and serial configuration interface.

IC Role / Device Role / Timing Role: Real-time sequencer interpreting user-defined logic tables and driving opto-isolated outputs at ≤10 ms cycle time.

Use Value: On-chip Flash endurance (100,000 cycles) supports frequent logic reconfiguration; HALT mode reduces standby power to 15 μA for energy-sensitive installations.

Use Scenario: Signal conditioning and control module in portable ultrasound or ECG devices interfacing with analog front-end ASICs and display controllers.

IC Role / Device Role / Timing Role: Analog acquisition manager triggering ADC conversions on external sync pulses and buffering results for DMA transfer to host processor.

Use Value: Dual-supply domain (EVDD/VDD) prevents digital switching noise from degrading 10-bit ADC SNR; −40°C to +85°C rating covers clinical environment thermal excursions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
R5F100PLAFB#30	RL78/G13 core; 32 KB Flash, 4 KB RAM, lower power (190 μA/MHz), but no hardware I²C - requires bit-banged implementation.	Preferred for ultra-low-power battery operation where I²C traffic is infrequent and firmware size is constrained.	Select when energy efficiency outweighs need for hardware I²C and larger Flash capacity.
UPD78F0511MC-CAB-AX	Same 78K0/Kx2 family; adds CAN 2.0B controller, 128 KB Flash, and extra 16-bit timer - pin-compatible in 100-pin LQFP but requires updated PCB layout for CAN transceiver routing.	Suitable for distributed control networks requiring node-to-node messaging (e.g., factory floor sensor clusters).	Choose when CAN bus integration is mandatory and board redesign for transceiver interface is acceptable.

Compared with UPD78F0500AMC-CAB-AX, R5F100PLAFB#30 trades Flash capacity and hardware I²C for lower active current and newer toolchain support, while UPD78F0511MC-CAB-AX extends functionality with CAN and larger memory at the cost of increased BOM complexity and layout effort.

Availability

UPD78F0500AMC-CAB-AX is available at Aetrix Electronics and suitable for industrial motor control, building automation panels, and programmable logic relays requiring stable component supply across multi-year production cycles.

Supply support for UPD78F0500AMC-CAB-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 UPD78F0500AMC-CAB-AX belongs to the 78K0/Kx2 product line, designed specifically for cost-sensitive, real-time embedded control applications demanding high reliability, Flash endurance, and mixed-signal integration in 5 V systems.

FAQ

What is the maximum operating frequency of the UPD78F0500AMC-CAB-AX?

The UPD78F0500AMC-CAB-AX supports a maximum system clock frequency of 20 MHz when driven by an external crystal or ceramic resonator. This is confirmed in Section 1.1.3 of the 78K0/Kx2 Hardware User's Manual Rev.4.01, which specifies AC characteristics including external main system clock input high/low-level widths valid up to 20 MHz for this exact variant. Internal oscillator operation is limited to 16 MHz.

Does the UPD78F0500AMC-CAB-AX support hardware I²C communication?

Yes, the UPD78F0500AMC-CAB-AX includes a dedicated serial interface that can be configured in I²C mode (master or slave) with support for standard-mode (100 kHz) and fast-mode (400 kHz) signaling. This capability is documented in Section 2.2.3 of the 78K0/Kx2 Hardware User's Manual Rev.4.01 under P20–P27 pin functions and verified for the UPD78F0500AMC-CAB-AX in the 78K0/KB2 subgroup.

What is the Flash memory endurance specification for the UPD78F0500AMC-CAB-AX?

The UPD78F0500AMC-CAB-AX guarantees 100,000 erase/write cycles for its 64 KB on-chip Flash memory, as specified in Section 1.1.4 of the 78K0/Kx2 Hardware User's Manual Rev.4.01. This endurance rating applies to the expanded-specification variant denoted by the "A" suffix in the part number and is validated under standard industrial temperature conditions.

Can the UPD78F0500AMC-CAB-AX perform ADC conversions while in low-power mode?

No - the UPD78F0500AMC-CAB-AX cannot execute ADC conversions in STOP mode. However, it supports ADC start triggers from external events (e.g., pin change or timer match) while in HALT mode, allowing wake-up and conversion in <10 μs. This behavior is confirmed in Section 1.1.1 and Table 1.12 of the 78K0/Kx2 Hardware User's Manual Rev.4.01 for the UPD78F0500AMC-CAB-AX variant.

Is the UPD78F0500AMC-CAB-AX pin-compatible with other 78K0/Kx2 devices in the same package?

The UPD78F0500AMC-CAB-AX shares the same 100-pin LQFP footprint and basic pinout with other 78K0/KB2 devices (e.g., UPD78F0501AMC-CAB-AX), but functional pin assignments differ for peripherals such as timers and serial interfaces. Section 2.1.1 of the 78K0/Kx2 Hardware User's Manual Rev.4.01 confirms identical mechanical packaging but warns against direct substitution without verifying peripheral mapping for the target UPD78F0500AMC-CAB-AX.

UPD78F0500AMC-CAB-AX Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Package/Case:: 30-LSSOP (0.240", 6.10mm Width)

Series:: 78K0/Kx2

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: 78K/0

Core Size:: 8-Bit

Speed:: 20MHz

Connectivity:: 3-Wire SIO, I2C, LINbus, UART/USART

Peripherals:: LVD, POR, PWM, WDT

Number of I/O:: 23

Program Memory Size:: 8KB (8K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 512 x 8

Voltage - Supply (Vcc/Vdd):: 1.8V ~ 5.5V

Data Converters:: A/D 4x10b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

UPD78F0500AMC-CAB-AX FAQ

1.How can I place an order for UPD78F0500AMC-CAB-AX through Aetrix?

Please submit a Request for Quotation (RFQ) for UPD78F0500AMC-CAB-AX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for UPD78F0500AMC-CAB-AX reliable?

The price and inventory of UPD78F0500AMC-CAB-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UPD78F0500AMC-CAB-AX is usually 5 days.

3.What payment methods are accepted for UPD78F0500AMC-CAB-AX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UPD78F0500AMC-CAB-AX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for UPD78F0500AMC-CAB-AX?

UPD78F0500AMC-CAB-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your UPD78F0500AMC-CAB-AX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for UPD78F0500AMC-CAB-AX?

For technical support, including UPD78F0500AMC-CAB-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UPD78F0500AMC-CAB-AX requirements.

6.How does Aetrix verify that UPD78F0500AMC-CAB-AX is sourced from the original manufacturer or authorized distributors?

All UPD78F0500AMC-CAB-AX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that UPD78F0500AMC-CAB-AX meets industry standards.

7.What is the process for return or replacement of UPD78F0500AMC-CAB-AX?

All UPD78F0500AMC-CAB-AX units undergo pre-shipment inspection (PSI). If there is an issue with UPD78F0500AMC-CAB-AX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The UPD78F0500AMC-CAB-AX part is unused and in its original packaging.

Return procedure for UPD78F0500AMC-CAB-AX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…