Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLogic ICsLogic IC - Multiplexer Multiplexer Single supply SOIC 16 N

Data sheet acquired from Harris Semiconductor

SCHS170B

Features

• 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 . . . -55

C to 125

• Balanced Propagation Delay and Transition Times

• Signiﬁcant Power Reduction Compared to LSTTL

Logic ICs

• HC Types

- 2V to 6V Operation

- High Noise Immunity: N

= 30%, N

= 30% of V

at V

= 5V

• HCT Types

- 4.5V to 5.5V Operation

- Direct LSTTL Input Logic Compatibility,

= 0.8V (Max), V

= 2V (Min)

- CMOS Input Compatibility, I

≤ 1µA at V

, V

Description

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.

Pinout

CD74HC253, CD74HCT253

(PDIP, SOIC)

TOP VIEW

Ordering Information

PART NUMBER TEMP. RANGE (

C) 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.

1OE

GND

2OE

November 1997 - Revised October 2003

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

CD74HC253,

CD74HCT253

High-Speed CMOS Logic

Dual 4-Input Multiplexer

[

/Title

(

CD74

C253

D74

CT25

)

Sub-

ect

(

High

peed

MOS

ogic

ual

-Input

ulti-

lexer)

Summary of content (14 pages)

PAGE 1
[ /Title (CD74 HC253 , CD74 HCT25 3) /Subject (High Speed CMOS Logic Dual 4-Input Multiplexer) CD74HC253, CD74HCT253 Data sheet acquired from Harris Semiconductor SCHS170B High-Speed CMOS Logic Dual 4-Input Multiplexer November 1997 - Revised October 2003 Features Description • Common Select Inputs 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.
PAGE 2
CD74HC253, CD74HCT253 Functional Diagrams 2OE 13 2I0 2I1 2I2 2I3 15 12 11 S0 10 S1 14 1I0 2 1I1 6 1I2 5 1I3 4 1OE 3 1 2OE 1OE 2OE 1OE 16 VCC 8 GND P N N P 2OE 2OE 1OE 1OE 7 9 2Y 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
PAGE 3
CD74HC253, CD74HCT253 Absolute Maximum Ratings Thermal Information 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. . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 4
CD74HC253, CD74HCT253 DC Electrical Specifications (Continued) TEST CONDITIONS 25oC -40oC TO 85oC -55oC TO 125oC SYMBOL VI (V) IO (mA) VCC (V) ICC VCC or GND 0 6 - - 8 - 80 - 160 µA High Level Input Voltage VIH - - 4.5 to 5.5 2 - - 2 - 2 - V Low Level Input Voltage VIL - - 4.5 to 5.5 - - 0.8 - 0.8 - 0.8 V High Level Output Voltage CMOS Loads VOH VIH or VIL -0.02 4.5 4.4 - - 4.4 - 4.4 - V -4 4.5 3.98 - - 3.84 - 3.7 - V 0.02 4.5 - - 0.
PAGE 5
CD74HC253, CD74HCT253 Switching Specifications Input tr, tf = 6ns PARAMETER Data to Outputs Disable Delay Times Enable Delay Times Output Transition Times Input Capacitance (Continued) TEST SYMBOL CONDITIONS tPLH, tPHL -55oC TO 125oC VCC (V) MIN TYP MAX MIN MAX MIN MAX UNITS 2 - - 175 - 220 - 265 ns 4.5 - - 35 - 44 - 53 ns CL =15pF 5 - 14 - - - - - ns CL = 50pF 6 - - 30 - 37 - 45 ns tPHZ, tPLZ CL = 50pF 2 - - 150 - 190 - 225 ns CL = 50pF 4.
PAGE 6
CD74HC253, CD74HCT253 Test Circuits and Waveforms tr = 6ns tf = 6ns 90% 50% 10% INPUT GND tTLH tPHL 6ns 10% 2.7 1.3 OUTPUT LOW TO OFF 90% OUTPUT HIGH TO OFF 50% OUTPUTS DISABLED FIGURE 3. HC THREE-STATE PROPAGATION DELAY WAVEFORM OTHER INPUTS TIED HIGH OR LOW OUTPUT DISABLE IC WITH THREESTATE OUTPUT GND 1.3V tPZH 90% OUTPUTS ENABLED OUTPUTS ENABLED 0.
PAGE 7
PACKAGE OPTION ADDENDUM www.ti.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.com 23-Apr-2007 at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 19-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device CD74HCT253M96 Package Package Pins Type Drawing SOIC D 16 SPQ Reel Reel Diameter Width (mm) W1 (mm) 2500 330.0 16.4 Pack Materials-Page 1 A0 (mm) B0 (mm) K0 (mm) P1 (mm) 6.5 10.3 2.1 8.0 W Pin1 (mm) Quadrant 16.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 19-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) CD74HCT253M96 SOIC D 16 2500 333.2 345.9 28.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.