DS1628

Features:

High speed capabilities
-Typical 5 ns driving 50 pF&8 ns driving 500 pF
TRI-STATE outputs
High VOH (34V 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 updown

 

Pinout




Specifications

If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications
SupplyVoltage                                                                                7.0V
Logical"1"InputVoltage                                                                  7.0V
Logical"0"InputVoltage                                                                 -1.5V
StorageTemperatureRange                                            -65to+150
Maximum Power Dissipation*at25
Cavity Package                                                                       1667mW
Molded Package                                                                      1832mW
LeadTemperature(Soldering10seconds)                                      300

*Derate cavity package 111 mW/ above 25derate molded package 147 mW/ above 25

Description

The DS1628DS3628 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 34V 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