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 trans.
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)
C1995 National Semiconductor Corporation TL F 5875
DIS 2
TRI-STATE is a registered trademark of National S.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | DS36276 |
National Semiconductor |
FAILSAFE Multipoint Transceiver | |
2 | DS36277 |
Texas Instruments |
Dominant Mode Multipoint Transceiver | |
3 | DS36277 |
National Semiconductor |
Dominant Mode Multipoint Transceiver | |
4 | DS36149 |
National Semiconductor |
(DS36149 / DS36179) Hex MOS Drivers | |
5 | DS36179 |
National Semiconductor |
(DS36149 / DS36179) Hex MOS Drivers | |
6 | DS3630-945GSE |
Advansus |
Mini ITX Main Board Manual | |
7 | DS3630B |
National Semiconductor |
Hex CMOS Compatible Buffer | |
8 | DS3631 |
National Semiconductor |
CMOS Dual Peripheral Drivers | |
9 | DS3632 |
National Semiconductor |
CMOS Dual Peripheral Drivers | |
10 | DS3633 |
National Semiconductor |
CMOS Dual Peripheral Drivers | |
11 | DS3634 |
National Semiconductor |
CMOS Dual Peripheral Drivers | |
12 | DS3647A |
National Semiconductor Corporation |
Quad Tri-state MOS Memory I/o Register |