DM74ALS157SJ

DM74ALS157SJ Datasheet


DM74ALS157<br>• DM74ALS158 Quad 1-of-2 Line Data Selector/Multiplexer

Part Datasheet
DM74ALS157SJ DM74ALS157SJ DM74ALS157SJ (pdf)
Related Parts Information
DM74ALS157SJX DM74ALS157SJX DM74ALS157SJX
DM74ALS157N DM74ALS157N DM74ALS157N
DM74ALS157MX DM74ALS157MX DM74ALS157MX
DM74ALS157M DM74ALS157M DM74ALS157M
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DM74ALS157
• DM74ALS158 Quad 1-of-2 Line Data Selector/Multiplexer

DM74ALS157
• DM74ALS158 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 ALS157 presents true data whereas the ALS158 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
and low power Schottky TTL counterpart s Improved AC performance over Schottky and 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

DM74ALS157M

M16A
16-Lead Small Outline Integrated Circuit SOIC , JEDEC MS-012, Narrow

DM74ALS157SJ

M16D
16-Lead Small Outline Package SOP , EIAJ TYPE II, 5.3mm Wide

DM74ALS157N

N16E
16-Lead Plastic Dual-In-Line Package PDIP , JEDEC MS-001, Wide

DM74ALS158N

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 DM74ALS157 DM74ALS158
2000 Fairchild Semiconductor Corporation DS006205

DM74ALS157
• DM74ALS158

Logic Diagrams

DM74ALS157

DM74ALS158

DM74ALS157
• DM74ALS158

Absolute Maximum Ratings Note 1

Supply Voltage Input Voltage Operating Free Air Temperature Range Storage Temperature Range
7V 0°C to +70°C −65°C to +150°C

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

Units

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

VCC = 4.5V, II = −18 mA

HIGH Level Output Voltage

IOH = mA, VCC = 4.5V to 5.5V

VCC − 2

LOW Level

VCC = 4.5V

IOL = 4 mA

Output Voltage

IOL = 8 mA

Input Current Maximum Input Voltage

VCC = 5.5V, VIH = 7V

HIGH Level Input Current

LOW Level Input Current

Output Drive Current
More datasheets: 82747011 | 82737009 | 82737010 | 82737011 | 82737012 | 82737014 | 82737005 | 1361 | 887 | DM74ALS157SJX


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Datasheet ID: DM74ALS157SJ 513658