DM74LS253M

Number of Bits :
Mounting Style : SMD/SMT
Package / Case : SOIC-16
Product : Multiplexer
Supply Voltage - Max : 5.25 V
Supply Voltage - Min : 4.75 V
Number of Lines (Input / Output) : 1 / 4
Maximum Operating Temperature : + 70 C
Packaging : Rail
Logic Family : 74LS
Propagation Delay Time : 35 ns at 5 V


Features:

·3-STATE version of DM74LS153 with same pinout
·Schottky-diode-clamped transistors
·Permit multiplexing from N-lines to one line
·Performs parallel-to-serial conversion
·Strobe/output control
·High fanout totem-pole outputs
·Typical propagation delay
   Data to output 12 ns
   Select to output 21 ns
·Typical power dissipation 35 mW


Specifications

Supply Voltage ..........................................................7V
Input Voltage............................................................ 7V
Operating Free Air Temperature Range..... 0 to +70
Storage Temperature Range ................-65 to +150
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" table are not guaranteed at the absolute maximum ratings.
The "Recommended Operating Conditions" table will define the conditions
for actual device operation.


Description

Each of these DM74LS253M Schottky-clamped data selectors/multiplexers contains inverters and drivers to supply fully complementary, on-chip, binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two four-line sections.

The 3-STATE outputs of DM74LS253M can interface directly with data lines of bus-organized systems. With all but one of the common outputs disabled (at a high impedance state), the low impedance of the single enabled output will drive the bus line to a HIGH or LOW logic level.