Datasheet

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

Data sheet acquired from Harris Semiconductor

SCHS248A

Features

• ’AC257, ’ACT257. . . . . . . . . . . . . Non-Inverting Outputs

• CD74ACT258 . . . . . . . . . . . . . . . . . . . Inverting Outputs

• Buffered Inputs

• Typical Propagation Delay

- 4.4ns at V

= 5V, T

= 25

C, C

= 50pF

• Exceeds 2kV ESD Protection MIL-STD-883, Method

3015

• SCR-Latchup-Resistant CMOS Process and Circuit

Design

• Speed of Bipolar FAST™/AS/S with Signiﬁcantly

Reduced Power Consumption

• Balanced Propagation Delays

• AC Types Feature 1.5V to 5.5V Operation and

Balanced Noise Immunity at 30% of the Supply

• ±24mA Output Drive Current

- Fanout to 15 FAST™ ICs

Drives 50Ω Transmission Lines

Pinout

CD54AC257, CD54ACT257

(CERDIP)

CD74AC257, CD74ACT257, CD74ACT258

(PDIP, SOIC)

TOP VIEW

Description

The ’AC257, ’ACT257 and CD74ACT258 are quad 2-input

multiplexers with three-state outputs that utilize Advanced

CMOS Logic technology. Each of these devices selects four

bits of data from two sources under the control of a common

Select input (S). The Output Enable (

OE) is active LOW.

When

OE is HIGH, all of the outputs (Y or Y) are in the high-

impedance state regardless of all other input conditions.

Moving data from two groups of registers to four common

output buses is a common use of the ’AC257, ’ACT257, and

CD74ACT258. The state of the Select input determines the

particular register from which the data comes. The ’AC257,

’ACT257 and CD74ACT258 can also be used as function

generators.

GND

AC/ACT257ACT258 ACT258AC/ACT257

GND

Ordering Information

PART

NUMBER

TEMP.

RANGE (

C) PACKAGE

CD54AC257F3A -55 to 125 16 Ld CERDIP

CD74AC257E 0 to 70

C, -40 to 85,

-55 to 125

16 Ld PDIP

CD74AC257M 0 to 70

C, -40 to 85,

-55 to 125

16 Ld SOIC

CD54ACT257F3A -55 to 125 16 Ld CERDIP

CD74ACT257E 0 to 70

C, -40 to 85,

-55 to 125

16 Ld PDIP

CD74ACT257M 0 to 70

C, -40 to 85,

-55 to 125

16 Ld SOIC

CD74ACT258E 0 to 70

C, -40 to 85,

-55 to 125

16 Ld PDIP

CD74ACT258M 0 to 70

C, -40 to 85,

-55 to 125

16 Ld SOIC

NOTES:

1. When ordering, use the entire part number. Add the suffix 96 to

obtain the variant in the tape and reel.

2. Wafer and die for this part number is available which meets all

electrical specifications. Please contact your local TI sales office or

customer service for ordering information.

August 1998 - Revised May 2000

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

FAST™ is a Trademark of Fairchild Semiconductor.

CD54/74AC257, CD54/74ACT257,

CD74ACT258

Quad 2-Input Multiplexer

with Three-State Outputs

Summary of content (25 pages)

PAGE 1
CD54/74AC257, CD54/74ACT257, CD74ACT258 Data sheet acquired from Harris Semiconductor SCHS248A Quad 2-Input Multiplexer with Three-State Outputs August 1998 - Revised May 2000 Features Description • ’AC257, ’ACT257. . . . . . . . . . . . . Non-Inverting Outputs The ’AC257, ’ACT257 and CD74ACT258 are quad 2-input multiplexers with three-state outputs that utilize Advanced CMOS Logic technology.
PAGE 2
CD54/74AC257, CD54/74ACT257, CD74ACT258 Functional Diagram AC/ACT AC/ACT 257 258 1I0 2I0 3I0 4I0 1I1 2I1 3I1 4I1 2 4 5 1Y 1Y 2Y 2Y 3Y 3Y 4Y 4Y 11 7 14 3 9 6 10 12 13 1 15 S OE TRUTH TABLE OUTPUT ENABLE SELECT INPUT 257 OUTPUTS 258 OUTPUTS OE S I0 I1 Y Y H X X X Z Z L L L X L H L L H X H L L H X L L H L H X H H L DATA INPUTS H = High level voltage, L = Low level voltage, Z = High impedance (off) state, X = Don’t Care 2
PAGE 3
CD54/74AC257, CD54/74ACT257, CD74ACT258 Absolute Maximum Ratings Thermal Information DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6V 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 . . . . . . . . . . . . . . . . . . . .±50mA DC Output Source or Sink Current per Output Pin, IO For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . .
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CD54/74AC257, CD54/74ACT257, CD74ACT258 DC Electrical Specifications (Continued) TEST CONDITIONS PARAMETER Low Level Output Voltage -40oC TO 85oC 25oC -55oC TO 125oC SYMBOL VI (V) IO (mA) VCC (V) MIN MAX MIN MAX MIN MAX UNITS VOL VIH or VIL 0.05 1.5 - 0.1 - 0.1 - 0.1 V 0.05 3 - 0.1 - 0.1 - 0.1 V 0.05 4.5 - 0.1 - 0.1 - 0.1 V 12 3 - 0.36 - 0.44 - 0.5 V 24 4.5 - 0.36 - 0.44 - 0.5 V 75 (Note 6, 7) 5.5 - - - 1.65 - - V 50 (Note 6, 7) 5.
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CD54/74AC257, CD54/74ACT257, CD74ACT258 ACT Input Load Table INPUT UNIT LOAD Data 0.83 S 1.27 OE 1.27 NOTE: Unit load is ∆ICC limit specified in DC Electrical Specifications Table, e.g., 2.4mA max at 25oC. Switching Specifications Input tr, tf = 3ns, CL = 50pF (Worst Case) -40oC TO 85oC PARAMETER -55oC TO 125oC SYMBOL VCC (V) MIN TYP MAX MIN TYP MAX UNITS tPLH, tPHL 1.5 - - 106 - - 117 ns 3.3 (Note 9) 3.3 - 11.8 3.3 - 13 ns 5 (Note 10) 2.4 - 8.5 2.3 - 9.3 ns 1.
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CD54/74AC257, CD54/74ACT257, CD74ACT258 Switching Specifications Input tr, tf = 3ns, CL = 50pF (Worst Case) (Continued) -40oC TO 85oC -55oC TO 125oC SYMBOL VCC (V) MIN TYP MAX MIN TYP MAX UNITS Propagation Delay, OE to Y AC/ACT257 tPLZ, tPHZ, tPZL, tPZH 5 4.1 - 14.6 4 - 16.1 ns Propagation Delay, In to Y ’AC/CD74ACT258 tPLH, tPHL 5 2.4 - 8.5 2.3 - 9.3 ns Propagation Delay, S to Y ’AC/CD74ACT258 tPLH, tPHL 5 4 - 14 3.9 - 15.
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CD54/74AC257, CD54/74ACT257, CD74ACT258 tr = 3ns tf = 3ns INPUT LEVEL nI0, nI1, S VS tPLH INPUT LEVEL 90% 10% tPLH tPHL GND Y Y VS S tPHL VS VS FIGURE 2. INPUTS OR SELECT TO OUTPUT PROPAGATION DELAYS (AC/ACT257) FIGURE 3. SELECT TO OUTPUT PROPAGATION DELAYS (CD74ACT258) OUTPUT RL (NOTE) 500Ω DUT OUTPUT LOAD CL 50pF NOTE: For AC Series Only: When VCC = 1.5V, RL = 1kΩ. AC ACT VCC 3V Input Switching Voltage, VS 0.5 VCC 1.5V Output Switching Voltage, VS 0.5 VCC 0.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Nov-2009 NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel Diameter Width (mm) W1 (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant CD74AC257M96 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 CD74ACT257M96 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 CD74ACT257M96 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.
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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) CD74AC257M96 SOIC D 16 2500 333.2 345.9 28.6 CD74ACT257M96 SOIC D 16 2500 346.0 346.0 33.0 CD74ACT257M96 SOIC D 16 2500 333.2 345.9 28.6 CD74ACT258M96 SOIC D 16 2500 333.2 345.9 28.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 18
PACKAGE OPTION ADDENDUM www.ti.com 11-Nov-2009 NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.
PAGE 19
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant CD74AC257M96 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 CD74ACT257M96 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 CD74ACT257M96 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) CD74AC257M96 SOIC D 16 2500 333.2 345.9 28.6 CD74ACT257M96 SOIC D 16 2500 367.0 367.0 38.0 CD74ACT257M96 SOIC D 16 2500 333.2 345.9 28.6 CD74ACT258M96 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 JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.