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DS3628 - Octal TRI-STATE MOS Drivers

General Description

The DS1628 DS3628 are octal Schottky memory drivers with TRI-STATE outputs designed to drive high capacitive loads associated with MOS memory systems The drivers’ output (VOH) is specified at 3 4V to provide additional noise immunity required by MOS inputs A PNP input structure is employed to minimi

Key Features

  • Y Y Y Y Y Y High speed capabilities Typical 5 ns driving 50 pF 8 ns driving 500 pF TRI-STATE outputs High VOH (3 4V min) High density Eight drivers and two disable controls for TRI-STATE in a 20-pin package PNP inputs reduce DC loading on bus lines Glitch-free power up down bs ol TL F 5875.
  • 1 (Equivalent Input Output Circuit) Truth Table DIS 1 H H X L L Disable Input Input X X X H L Output Z Z Z L H O H X H L L H e high level L e low level X e don’t care Z e high impedance (off).

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DS1628 DS3628 Octal TRI-STATE MOS Drivers February 1986 DS1628 DS3628 Octal TRI-STATE MOS Drivers General Description The DS1628 DS3628 are octal Schottky memory drivers with TRI-STATE outputs designed to drive high capacitive loads associated with MOS memory systems The drivers’ output (VOH) is specified at 3 4V to provide additional noise immunity required by MOS inputs A PNP input structure is employed to minimize input currents The circuit employs Schottky-clamped transistors for high speed A NOR gate of two inputs DIS1 and DIS2 controls the TRI-STATE mode Features Y Y Y Y Y Y High speed capabilities Typical 5 ns driving 50 pF 8 ns driving 500 pF TRI-STATE outputs High VOH (3 4V min) High density Eight drivers and two disable controls for TRI-STATE in a 20-pin package PNP inputs r