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DS89C440-ENG

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DS89C440-ENG

IC MCU 8BIT 32KB FLASH 44TQFP

Manufacturer: Analog Devices Inc./Maxim Integrated

Categories: Microcontrollers

Quality Control: Learn More

The Analog Devices Inc./Maxim Integrated DS89C440-ENG is an 8-bit 8051 microcontroller featuring 32KB of FLASH program memory and 1KB of RAM. This device operates at a maximum frequency of 25MHz and includes an EBI/EMI interface, SIO, and UART/USART for connectivity. Peripherals such as Power-Fail Reset and a Watchdog Timer are integrated for enhanced system reliability. The microcontroller is housed in a 44-TQFP (10x10) package and supports surface mount installation. It requires an external oscillator and operates within a voltage range of 4.5V to 5.5V. 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: BagDatasheet:
Technical Details:
PackagingBag
Package / Case44-TQFP
Mounting TypeSurface Mount
Speed25MHz
Program Memory Size32KB (32K 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-TQFP (10x10)
Number of I/O32
ProgrammableNot Verified

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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.

Frequently Asked Questions

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After we receive your request submission, one of our account executives will reach out to your team to gather more information about your project requirements and ensure we tailor the order to your needs.

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We partner with industry-leading AS6171 & AS6081-certified third party testing labs to mitigate risk and support a wide array of end uses for your company’s requirements. Testing includes but isn’t limited to: Decapsulation & Internal Dye Verification. X-Ray Inspection & Analysis, External Visual Inspection, Surface Texture Analysis (SEM), and Electrical Pin Correlation.