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DM74ALS257SJ, DM74ALS257SJX, DM74ALS258M_Q

Table of contents:
Info of DM74ALS257SJ
Info of DM74ALS257SJX
Info of DM74ALS258M_Q

DM74ALS257SJ, DM74ALS257SJX, DM74ALS258M_Q Selling Leads, Datasheet

MFG:Fairchild Semiconductor Category:Integrated Circuits (ICs) Package Cooled:N/A D/C:09+

DM74ALS257SJ, DM74ALS257SJX, DM74ALS258M_Q Datasheet download

Five Points

Part Number: DM74ALS257SJ

Category: Integrated Circuits (ICs)

MFG: Fairchild Semiconductor

Package Cooled: N/A

D/C: 09+

Description: IC DATA SELECTOR/MUX QUAD 16SOP

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DM74ALS257SJ Parameters

Technical/Catalog Information	DM74ALS257SJ
Vendor	Fairchild Semiconductor
Category	Integrated Circuits (ICs)
Circuit	4 x 2:1
Independent Circuits	1
Mounting Type	Surface Mount
Current - Output High, Low	2.6mA, 24mA
Package / Case	16-SOP
Packaging	Tube
Type	Data Selector/Multiplexer
Voltage Supply Source	Single Supply
Operating Temperature	0°C ~ 70°C
Voltage - Supply	4.5 V ~ 5.5 V
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	DM74ALS257SJ DM74ALS257SJ

DM74ALS257SJ General Description

These data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four 3- STATE outputs that can interface directly with data lines of bus-organized systems. A 4-bit word selected from one of two sources is routed to the four outputs. The DM74ALS257 presents true data whereas the DM74ALS258 presents inverted data to minimize propagation delay time.

This 3-STATE output feature means that n-bit (paralleled) data selectors with up to 258 sources can be implemented for data buses. It also permits the use of standard TTL registers for data retention throughout the system.

DM74ALS257SJ Maximum Ratings

Supply Voltage........................................................... 7V
Input Voltage .............................................................7V
Voltage Applied to Disabled Output ........................5.5V
Operating Free Air Temperature Range ....0°C to +70°C
Storage Temperature Range ...............-65°C to +150°C
Typical qJA
N Package ......................................................73.0°C/W
M Package ....................................................102.0°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.

DM74ALS257SJ Features

· Switching specifications at 50 pF
· Switching specifications guaranteed over full temperature and VCC range
· Advanced oxide-isolated, ion-implanted Schottky TTL process
· Functionally and pin for pin compatible with Schottky
and low power Schottky TTL counterpart
· Improved AC performance over Schottky and low power
Schottky counterparts
· 3-STATE buffer-type outputs 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

DM74ALS257SJ Connection Diagram

DM74ALS257SJX Parameters

Technical/Catalog Information	DM74ALS257SJX
Vendor	Fairchild Semiconductor
Category	Integrated Circuits (ICs)
Circuit	4 x 2:1
Independent Circuits	1
Mounting Type	Surface Mount
Current - Output High, Low	2.6mA, 24mA
Package / Case	16-SOP
Packaging	Tape & Reel (TR)
Type	Data Selector/Multiplexer
Voltage Supply Source	Single Supply
Operating Temperature	0°C ~ 70°C
Voltage - Supply	4.5 V ~ 5.5 V
Drawing Number	*
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	DM74ALS257SJX DM74ALS257SJX

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