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
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).
DS3628 Datasheet
