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Programmable 8 bit Silicon Delay Line

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Programmable 8 bit Silicon Delay Line Nov 17, 1999

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Key Features

  • All-silicon time delay
  • Models with 0.25ns and 0.5ns steps
  • Programmable using 3-wire serial port or 8-bit parallel port
  • Leading and trailing edge accuracy
  • Auto-insertable, low profile
  • Low-power CMOS with TTL compatibility
  • Vapor phase, IR, and wave solderable

Applications/Uses

Description

The DS1021 is an 8-bit programmable delay line that reproduces an input logic state at the output after a user-programmed delay. It is similar to the DS1020 but with the economy of reduced specifications. Available in two versions, total delays are varied over 256 steps and range from an inherent 10ns minimum delay in both versions to a maximum delay of 137.5ns. The DS1021 can be programmed over the 3-wire serial port or the 8-pin parallel port. The DS1021 is TTL- and CMOS-compatible and capable of driving up to ten 74LS-type loads. Both leading- and trailing-edge accuracy are specified.

The DS1021 is an effective, economical solution to the designer working with the complex timing requirements of mismatched ASICs or other components, or with the strict timing tolerances of increasing system clock rates. With the DS1021's programmable outputs, the user can precisely adjust timing to application needs and improve system performance. Innovative circuit designs and factory laser or EPROM trimming enhance accuracy without the need for external components, saving cost and space.

Simplified Block Diagram

DS1021, DS1021-25, DS1021-50: Functional Block Diagram DS1021, DS1021-25, DS1021-50: Functional Block Diagram Zoom icon

Technical Docs

Data Sheet Programmable 8 bit Silicon Delay Line Nov 17, 1999

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .