DM74AS158N
DM74AS158N Datasheet
DM74AS157<br>• DM74AS158 Quad 1 of 2 Line Data Selector/Multiplexer
| Part | Datasheet |
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DM74AS158N |
DM74AS158N (pdf) |
| Related Parts | Information |
|---|---|
DM74AS157N |
DM74AS157N |
DM74AS157M |
DM74AS157M |
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DM74AS158M |
DM74AS158M |
DM74AS157SJX |
DM74AS157SJX |
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DM74AS158MX |
DM74AS158MX |
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DM74AS157MX |
DM74AS157MX |
DM74AS157SJ |
DM74AS157SJ |
| PDF Datasheet Preview |
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| DM74AS157 • DM74AS158 Quad 1 of 2 Line Data Selector/Multiplexer DM74AS157 • DM74AS158 Quad 1 of 2 Line Data Selector/Multiplexer These data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four output gates. A separate STROBE input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The AS157 presents true data whereas the AS158 presents inverted data to minimize propagation delay time. s Switching specifications at 50 pF s Switching specifications guaranteed over full tempera- ture and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL process s Functionally and pin for pin compatible with Schottky, low power Schottky, and advanced low power Schottky TTL counterpart s Improved AC performance over Schottky, low power Schottky, and advanced low power Schottky counterparts s Expand any data input point s Multiplex dual data buses s General four functions of two variables one variable is common s Source programmable counters Ordering Code: Order Number Package Number Package Description DM74AS157M M16A 16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow DM74AS157SJX M16D 16-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide DM74AS157N N16E 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide DM74AS158M M16A 16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow DM74AS158N N16E 16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Inputs STROBE Select A H = HIGH Level L = LOW Level X = Don't Care Output Y B DM74AS157 DM74AS158 2000 Fairchild Semiconductor Corporation DS006290 DM74AS157 • DM74AS158 Logic Diagrams DM74AS157 DM74AS158 DM74AS157 • DM74AS158 Absolute Maximum Ratings Note 1 Supply Voltage Input Voltage Operating Free Air Temperature Range 0°C to +70°C Storage Temperature Range −65°C to +150°C Typical N Package °C/W Note 1 The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions VCC VIH VIL IOH IOL TA Parameter Supply Voltage HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Current LOW Level Output Current Free Air Operating Temperature −2 Electrical Characteristics over recommended operating free air temperature range. All typical values are measured at VCC = 5V, TA = 25°C. Parameter Conditions Input Clamp Voltage HIGH Level Output Voltage LOW Level Output Voltage Input Current at Max Input Voltage HIGH Level Input Current LOW Level |
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