DS3679 ,Hex TRI-STATE TTL to MOS DriversFeaturesduce input currents allowing the large fan-out to these driv-YHigh speed capabilitiesers ne ..
DS3680 ,Quad Negative Voltage Relay DriverDS3680QUAD TELEPHONE RELAY DRIVERSLRS014C – MARCH 1986 – REVISED SEPTEMBER 1995D OR N PACKAGE• Desi ..
DS3680 ,Quad Negative Voltage Relay Drivermaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
DS3680D ,Quad Telephone Relay DriversDS3680QUAD TELEPHONE RELAY DRIVERSLRS014C – MARCH 1986 – REVISED SEPTEMBER 1995D OR N PACKAGE• Desi ..
DS3680J ,Quad Negative Voltage Relay DriverFeaturesthe negative supply, such as in telephone relay systems.Yb b10V to 60V operationSince there ..
DS3680J ,Quad Negative Voltage Relay Driverapplications of switching inductive loads. Adesigned to operate over wide ranges of supply voltage, ..
EC103D1 ,SCR
EC103D1 ,SCR
EC103D1 ,SCR
EC2-12NU ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE
EC2-24 ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE
EC2-24NU ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE
DS3679
Hex TRI-STATE TTL to MOS Drivers
TL/F/7515
DS1649/DS3649/DS1679/DS3679
Hex
TRI-STATE
TTL
MOS
Drivers
March 1986
DS1649/DS3649/DS1679/DS3679 Hex TRI-STATEÉ TTL MOS Drivers
General Description
The DS1649/DS3649 and DS1679/DS3679 are Hex
TRI-STATE MOS drivers with outputs designedto drive
large capacitive loadsupto 500pF associated with MOS
memory systems. PNP input transistorsare employedtore-
duce input currents allowingthe large fan-outto these driv-
ers neededin memory systems. The circuithas Schottky-
clamped transistor logicfor minimum propagation delay,
and TRI-STATE outputsforbus operation.
The DS1649/DS3649hasa 15X resistorin series withthe
outputsto dampen transients causedbythe fast-switching
TRI-STATEÉ isaregistered trademarkof National SemiconductorCorp.
output. The DS1679/DS3679hasa directlow impedance
outputforuse withor withoutan external resistor.
Features High speed capabilities Typ9ns driving50pF Typ30ns driving500pF TRI-STATE outputsfor data bussing Built-in 15X damping resistor (DS1649/DS3649) Same pin-outas DM8096and DM74366
Schematic Diagram
*DS1649/DS3649only TL/F/7515–1
Truth Table
Disable Input Input Output
DIS1 DIS2 0 1 1 0 1 X Hi-Z 0 X Hi-Z 1 X Hi-Ze Don’tcare
Hi-Ze TRI-STATE mode
Connection Diagram
Dual-In-Line Package
TL/F/7515–2
Top View
Order Number DS1649J,DS3649J,
DS1679J,DS3679J, DS3649Nor DS3679N
SeeNS Package Number J16AorN16A
Typical Application
TL/F/7515–3
C1995National SemiconductorCorporation RRD-B30M105/PrintedinU.S.A.
