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DS89C450-ENG+ - Analog Devices

Description: 8-bit Microcontrollers - MCU Ultra-High-Speed Flash MCU

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DS89C450-ENG+ - Analog Devices PCB footprint - Quad Flat Packages - Quad Flat Packages - 44 TQFP
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DS89C450-ENG+ - Analog Devices  - 3D model - Quad Flat Packages - 44 TQFP
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DS89C450-ENG+ Details

  • Manufacturer Part Number:

    DS89C450-ENG+

  • Brand Name:

    Analog Devices Inc

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    44-TQFP-10X10X1.0

  • Package Description:

    TQFP-44

  • Pin Count:

    44

  • Manufacturer Package Code:

    44-TQFP-10X10X1.0

  • Country Of Origin:

    Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

  • ECCN Code:

    3A991.a.2

  • HTS Code:

    8542.31.00.15

  • Date Of Intro:

    2003-11-10

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    10

  • Has ADC:

    NO

  • Address Bus Width:

    16

  • Bit Size:

    8

  • Boundary Scan:

    YES

  • CPU Family:

    8051

  • Clock Frequency-Max:

    33 MHz

  • DAC Channels:

    NO

  • DMA Channels:

    NO

  • External Data Bus Width:

    8

  • JESD-30 Code:

    S-PQFP-G44

  • JESD-609 Code:

    e3

  • Length:

    10 mm

  • Moisture Sensitivity Level:

    3

  • Number of I/O Lines:

    32

  • Number of Terminals:

    44

  • On Chip Program ROM Width:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • PWM Channels:

    NO

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TQFP

  • Package Equivalence Code:

    TQFP44,.47SQ,32

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • RAM (bytes):

    1024

  • ROM (words):

    65536

  • ROM Programmability:

    FLASH

  • Seated Height-Max:

    1.2 mm

  • Speed:

    25 MHz

  • Supply Current-Max:

    110 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    5 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    QUAD

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    10 mm

  • uPs/uCs/Peripheral ICs Type:

    MICROCONTROLLER

DS89C450-ENG+ Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VCC first, followed by VDD, and then the clock signal. This ensures proper initialization and prevents latch-up or damage to the device.
  • When using the DS89C450-ENG+ in a system with multiple clock domains, it's essential to ensure that the clock signal is properly synchronized and buffered to prevent clock domain crossing issues. Use a clock buffer or a clock domain crossing circuit to synchronize the clock signal.
  • The maximum allowed capacitance on the VCC and VDD pins is 10nF. Exceeding this value can cause power supply noise and affect the device's performance.
  • A reliable reset circuit can be implemented using a voltage supervisor IC, such as the ADM691, which provides a reset signal to the DS89C450-ENG+ during power-up or brownout conditions.
  • To minimize EMI and noise, it's recommended to follow a star-topology layout, keep the clock signal traces short and away from analog signals, and use a solid ground plane. Additionally, use a low-ESR capacitor for power supply decoupling and place it close to the device.

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DS89C450-ENG+ Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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Part Image DS89C450-ENG+ Maxim Integrated Products

Microcontroller, 8-Bit, FLASH, 8051 CPU, 25MHz, CMOS, PQFP44

Part Image DS89C450-ENG Maxim Integrated Products

Microcontroller, 8-Bit, FLASH, 8051 CPU, 25MHz, CMOS, PQFP44