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DS89C450-QNL

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DS89C450-QNL

IC MCU 8BIT 64KB FLASH 44PLCC

Manufacturer: Analog Devices Inc./Maxim Integrated

Categories: Microcontrollers

Quality Control: Learn More

Analog Devices Inc./Maxim Integrated DS89C450-QNL is an 8-bit 8051 microcontroller featuring 64KB of FLASH program memory and 1KB of RAM. This device operates at a maximum frequency of 33MHz and includes integrated peripherals such as Power-Fail Reset and a Watchdog Timer (WDT). Connectivity options include EBI/EMI, SIO, and UART/USART interfaces. The DS89C450-QNL is housed in a 44-PLCC package with surface mount capability. It requires a supply voltage between 4.5V and 5.5V and operates within an ambient temperature range of -40°C to 85°C. This component is suitable for applications in industrial automation and consumer electronics.

Additional Information

Series: 89CRoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:
Technical Details:
PackagingTube
Package / Case44-LCC (J-Lead)
Mounting TypeSurface Mount
Speed33MHz
Program Memory Size64KB (64K x 8)
RAM Size1K x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeExternal
Program Memory TypeFLASH
EEPROM Size-
Core Processor8051
Data Converters-
Core Size8-Bit
Voltage - Supply (Vcc/Vdd)4.5V ~ 5.5V
ConnectivityEBI/EMI, SIO, UART/USART
PeripheralsPower-Fail Reset, WDT
Supplier Device Package44-PLCC (16.59x16.59)
Number of I/O32
ProgrammableVerified

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Microcontroller FAQs

A microcontroller is a compact integrated circuit that combines a processor, memory, and input/output peripherals for embedded control applications.

Microcontrollers execute programmed instructions to process sensor inputs and control outputs such as motors, displays, and communication interfaces.

Microcontrollers are commonly used in:

  • Automotive systems
  • Robotics
  • IoT devices
  • Industrial automation
  • Household appliances
  • Smart electronics

Microcontrollers integrate memory and peripherals on-chip for dedicated tasks, while microprocessors are designed for higher-performance computing systems requiring external components.

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