DM74LS157M ,Quad 2-Line to 1-Line Data Selectors/MultiplexersDM74LS157 • DM74LS158 Quad 2-Line to 1-Line Data Selectors/MultiplexersSeptember 1986Revised April ..
DM74LS157MX , Quad 2-to-1 Line Data Selector/MultiplexerFeatures■ Buffered inputs and outputs■ Typical Propagation TimeDM74LS157 9 nsDM74LS158 7 ns■ Typica ..
DM74LS157N ,Quad 2-Line to 1-Line Data Selectors/MultiplexersFeaturesYBuffered inputs and outputsThese data selectors/multiplexers contain inverters andYdrivers ..
DM74LS157SJX , Quad 2-to-1 Line Data Selector/MultiplexerApplicationsThese data selectors/multiplexers contain inverters and • Expand any data input pointdr ..
DM74LS158M ,Quad 2-Line to 1-Line Data Selectors/MultiplexersApplicationsAlternate Military/Aerospace device (54LS157,YExpand any data input point 54LS158) is a ..
DM74LS158MX , Quad 2-to-1 Line Data Selector/Multiplexer (Inverting)Features■ Buffered inputs and outputs■ Typical Propagation TimeDM74LS157 9 nsDM74LS158 7 ns■ Typica ..
DS2155L+ ,T1/E1/J1 Single-Chip TransceiverFUNCTIONAL DESCRIPTION ....13 3.2
DS2155LB ,T1/E1/J1 Single-Chip TransceiverFEATURES......10 3.1
DS2155LB ,T1/E1/J1 Single-Chip TransceiverFUNCTIONAL DESCRIPTION ....13 3.2
DS2155LB+ ,T1/E1/J1 Single-Chip Transceiverapplications. The DS2155 is composed of a Complete E1 (CEPT) PCM-30/ISDN-PRI line interface unit ( ..
DS2155LC2 ,T1/E1/J1 Single-Chip TransceiverAPPLICATIONS T1/E1/J1 Line Cards ORDERING INFORMATION Switches and Routers Add-Drop Multiplexers ..
DS2155LC2+ ,T1/E1/J1 Single-Chip TransceiverTABLE OF CONTENTS .......2 1.1 TABLE OF FIGURES .6 1.2 TABLE OF TABLES...7 2. DATA SHEET REVISION H ..
DM74LS157M
Quad 2-Line to 1-Line Data Selectors/Multiplexers
DM74LS157 • DM74LS158 Quad 2-Line to 1-Line Data Selectors/Multiplexers September 1986 Revised April 2000 DM74LS157 • DM74LS158 Quad 2-Line to 1-Line Data Selectors/Multiplexers General Description Applications These data selectors/multiplexers contain inverters and • Expand any data input point drivers to supply full on-chip data selection to the four out- • Multiplex dual data buses put gates. A separate strobe input is provided. A 4-bit word • Generate four functions of two variables is selected from one of two sources and is routed to the (one variable is common) four outputs. The DM74LS157 presents true data whereas • Source programmable counters the DM74LS158 presents inverted data to minimize propa- gation delay time. Features � Buffered inputs and outputs � Typical Propagation Time DM74LS157 9 ns DM74LS158 7 ns � Typical Power Dissipation DM74LS157 49 mW DM74LS158 24 mW Ordering Code: Order Number Package Number Package Description DM74LS157M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74LS157SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide DM74LS157N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide DM74LS158M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow DM74LS158N 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 Diagrams DM74LS157 DM74LS158 © 2000 DS006396
