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Product attributes Property Value
Manufacturer Renesas Electronics Corporation
Product Series 78K0R/Kx3
Packaging | Tray
Core Processor 78K/0R
Core Size 16-Bit
Speed 20MHz
Connectivity 3-Wire SIO, I2C, LINbus, UART/USART
Peripherals DMA, LVD, POR, PWM, WDT
Number of I/O 50
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Supplier Device Package -
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Renesas UPD78F1142AGK-GAJ-AX is a 16-bit MCU built on the 78K/0R core, running at 20MHz. It offers 64KB flash and 4KB RAM, with a supply range of 1.8V to 5.5V. Integrated DMA, LVD, POR, PWM, and WDT reduce external components. Housed in a 64-LQFP package, it operates from -40°C to 85°C, making it suitable for industrial and automotive applications.

  • Wide voltage range (1.8V-5.5V): Enables flexible power design for both battery and regulated supplies.
  • Integrated DMA and PWM: Reduces CPU load and simplifies motor control or signal generation.
  • Robust safety features (LVD, POR, WDT): Enhances system reliability in harsh environments.
  • Compact 64-LQFP package: Saves board space while providing enough I/O for complex designs.

Industrial Sensor Nodes

With 20MHz speed and 64KB flash, it handles real-time sensor data processing and control loops efficiently.

Battery-Powered Instruments

1.8V minimum supply and low-power features (LVD, WDT) extend battery life in portable meters.

Motor Control Units

Built-in PWM and DMA enable smooth waveform generation and data transfer without CPU overhead.

Automotive Body Electronics

Operating from -40°C to 85°C and POR/LVD ensure reliable operation in harsh environments.

Smart Home Controllers

64-LQFP package and 4KB RAM support multiple I/O interfaces for lighting and HVAC control.

Safety-Critical Systems

WDT and LVD provide fault detection and safe shutdown in medical or industrial safety applications.

Q: What is the operating voltage range?
A: 1.8V to 5.5V, suitable for battery and 3.3V/5V systems.
Q: What package is available?
A: 64-LQFP, ideal for compact PCB designs.
Q: Does it include PWM and watchdog?
A: Yes, it features PWM, WDT, DMA, LVD, and POR.
Q: What is the maximum CPU speed?
A: 20MHz with a 78K/0R core.
Base Product Number : UPD78F1142AGK
16-bit MCU 20MHz 4KB RAM 64-LQFP 64KB Flash 78K/0R Automotive DMA Industrial LVD POR PWM Renesas WDT
Q: What is the operating voltage range?
A: 1.8V to 5.5V, suitable for battery and 3.3V/5V systems.
Q: What package is available?
A: 64-LQFP, ideal for compact PCB designs.
Q: Does it include PWM and watchdog?
A: Yes, it features PWM, WDT, DMA, LVD, and POR.
Q: What is the maximum CPU speed?
A: 20MHz with a 78K/0R core.