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CD74HCT253E Dataheets PDF



Part Number CD74HCT253E
Manufacturers Texas Instruments
Logo Texas Instruments
Description Dual 4-Input Multiplexer
Datasheet CD74HCT253E DatasheetCD74HCT253E Datasheet (PDF)

Data sheet acquired from Harris Semiconductor SCHS170B November 1997 - Revised October 2003 CD74HC253, CD74HCT253 High-Speed CMOS Logic Dual 4-Input Multiplexer [ /Title (CD74 HC253 , CD74 HCT25 3) /Subject (High Speed CMOS Logic Dual 4-Input Multiplexer) Features Description • Common Select Inputs • Separate Output-Enable Inputs • Three-State Outputs • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . .

  CD74HCT253E   CD74HCT253E


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Data sheet acquired from Harris Semiconductor SCHS170B November 1997 - Revised October 2003 CD74HC253, CD74HCT253 High-Speed CMOS Logic Dual 4-Input Multiplexer [ /Title (CD74 HC253 , CD74 HCT25 3) /Subject (High Speed CMOS Logic Dual 4-Input Multiplexer) Features Description • Common Select Inputs • Separate Output-Enable Inputs • Three-State Outputs • Fanout (Over Temperature Range) - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating Temperature Range . . . -55oC to 125oC • Balanced Propagation Delay and Transition Times • Significant Power Reduction Compared to LSTTL Logic ICs • HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V • HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il ≤ 1µA at VOL, VOH The CD74HC253 and CD74HCT253 are dual 4-to-1 line selector/multiplexers having three-state outputs. One of four sources for each section is selected by the common select inputs, S0 and S1. When the output enable (1OE, 2OE) is HIGH, the output is in the high-impedance state. Ordering Information PART NUMBER TEMP. RANGE (oC) PACKAGE CD74HC253E -55 to 125 16 Ld PDIP CD74HC253M -55 to 125 16 Ld SOIC CD74HC253MT -55 to 125 16 Ld SOIC CD74HC253M96 -55 to 125 16 Ld SOIC CD74HCT253E -55 to 125 16 Ld PDIP CD74HCT253M -55 to 125 16 Ld SOIC CD74HCT253MT -55 to 125 16 Ld SOIC CD74HCT253M96 -55 to 125 16 Ld SOIC NOTE: When ordering, use the entire part number. The suffix 96 denotes tape and reel. The suffix T denotes a small-quantity reel of 250. Pinout CD74HC253, CD74HCT253 (PDIP, SOIC) TOP VIEW 1OE 1 S1 2 1I3 3 1I2 4 1I1 5 1I0 6 1Y 7 GND 8 16 VCC 15 2OE 14 S0 13 2I3 12 2I2 11 2I1 10 2I0 9 2Y CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. 1 Copyright © 2003, Texas Instruments Incorporated 1 CD74HC253, CD74HCT253 Functional Diagrams 2OE 2I3 2I2 2I1 2I0 S0 S1 15 13 12 11 10 14 2 1I0 6 1I1 5 1I2 4 1I3 3 1OE 1 2OE 2OE 16 VCC 8 GND P N 2OE 2OE 9 2Y 1OE 1OE N P 1OE 1OE 7 1Y TRUTH TABLE SELECT INPUTS (Note 1) DATA INPUTS OUTPUT ENABLE OUTPUT S1 S0 I0 I1 I2 I3 OE Y X X X X X X H Z L L L X X X L L L L H X X X L H L H X L X X L L L H X H X X L H H L X X L X L L H L X X H X L H H H X X X L L L H H X X X H L H H = High Voltage Level, L = Low Voltage Level, X = Don’t Care, Z = High Impedance (Off). NOTE: 1. Select inputs S1 and S0 are common to both sections. 2 CD74HC253, CD74HCT253 Absolute Maximum Ratings DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V DC Input Diode Current, IIK For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA DC Output Diode Current, IOK For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±20mA DC Drain Current, per Output, IO For -0.5V < VO < VCC + 0.5V. . . . . . . . . . . . . . . . . . . . . . . . . .±35mA DC Output Source or Sink Current per Output Pin, IO For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . .±25mA DC VCC or Ground Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . .±50mA Thermal Information Thermal Resistance (Typical, Note 2) θJA (oC/W) E (PDIP) Package . . . . . . . . . . . . . . . . . . . . . . . . . . 67 M (SOIC) Package. . . . . . . . . . . . . . . . . . . . . . . . . . 73 Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC (SOIC - Lead Tips Only) Operating Conditions Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC Supply Voltage Range, VCC HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to VCC Input Rise and Fall Time 2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max) 4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max) 6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max) CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTE: 2. The package thermal impedance is calculated in accordance with JESD 51-7. DC Electrical Specificati.


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