DM74AS258MX ,3-STATE Quad 1 of 2 Line Inverting Data Selectors/MultiplexersDM74AS257 • DM74AS258 3-STATE Quad 1 of 2 Line Data Selector/MultiplexersSeptember 1986Revised Marc ..
DM74AS258N ,3-STATE Quad 1 of 2 Line Inverting Data Selectors/MultiplexersFeaturesThese data selectors/multiplexers contain inverters and ■ Switching specifications at 50 pF ..
DM74AS27N ,Triple 3-Input NOR GateFeaturesThis device contains three independent 3-input gates, each ■ Switching specifications at 50 ..
DM74AS27N ,Triple 3-Input NOR GateDM74AS27 Triple 3-Input NOR GateApril 1984Revised March 2000DM74AS27Triple 3-Input NOR Gate
DM74AS280M ,9-Bit Parity Generator/CheckerDM74AS280 9-Bit Parity Generator/CheckerOctober 1986Revised March 2000DM74AS2809-Bit Parity Generat ..
DM74AS280N ,9-Bit Parity Generator/CheckerFeaturesThese universal, 9-bit parity generators/checkers utilize ■ Generates either odd or even pa ..
DS18B20 ,High-Precision 1-Wire Digital ThermometerGeneral Description Beneits and
DS18B20. ,High-Precision 1-Wire Digital ThermometerApplications● Thermostatic Controls● Available in 8-Pin SO (150 mils), 8-Pin µSOP, and ● Industrial ..
DS18B20/ ,High-Precision 1-Wire Digital ThermometerFeatures®The DS18B20 digital thermometer provides 9-bit to 12-bit ● Unique 1-Wire Interface Require ..
DS18B20+ ,Programmable Resolution 1-Wire Digital ThermometerElectrical Characteristics–NV Memory(-55°C to +125°C; V = 3.0V to 5.5V)DD PARAMETER SYMBOL CONDITIO ..
DS18B20+/ ,High-Precision 1-Wire Digital ThermometerElectrical Characteristics(-55°C to +125°C; V = 3.0V to 5.5V)DD PARAMETER SYMBOL CONDITIONS MIN TYP ..
DS18B20-PAR ,1-Wire Parasite-Power Digital ThermometerELECTRICAL CHARACTERISTICS sections of this data sheet). However, when the DS18B20-PAR is performi ..
DM74AS257MX-DM74AS257N-DM74AS258M-DM74AS258MX-DM74AS258N
3-STATE Quad 1 of 2 Line Data Selectors/Multiplexers
DM74AS257 • DM74AS258 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers September 1986 Revised March 2000 DM74AS257 • DM74AS258 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers General Description Features These data selectors/multiplexers contain inverters and � Switching specifications at 50 pF drivers to supply full on-chip data selection to the four 3- � Switching specifications guaranteed over full tempera- STATE outputs that can interface directly with data lines of ture and V range CC bus-organized systems. A 4-bit word selected from one of � Advanced oxide-isolated, ion-implanted Schottky TTL two sources is routed to the four outputs. The DM74AS257 process presents true data whereas the DM74AS258 presents � Functionally and pin for pin compatible with Schottky, inverted data to minimize propagation delay time. low power Schottky, and advanced low power Schottky This 3-STATE output feature means that n-bit (paralleled) TTL counterpart data selectors with up to 300 sources can be implemented � Improved AC performance over Schottky, low power for data buses. It also permits the use of standard TTL reg- Schottky, and advanced low power Schottky counter- isters for data retention throughout the system. parts � 3-STATE buffer-type output drive bus lines directly � Expand any data input point � Multiplex dual data buses � General four functions of two variables (one variable is common) � Source programmable counters Ordering Code: Order Number Package Number Package Description DM74AS257M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74AS257N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide DM74AS258M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74AS258N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table INPUTS OUTPUT Y OUTPUT SELECT A B AS257 AS258 CONTROL HX X X Z Z LL L X L H LL H X H L LH X L L H LH X H H L H = HIGH Level L = LOW Level X = Don't Care Z = High Impedance (OFF) © 2000 DS006107
