Datasheet IN74AC253D, IN74AC253N Datasheet (INTEGRAL)

TECHNICAL DATA

Dual 4-Input Data Selector/Multiplexer with 3-State Otputs

High-Speed Silicon-Gate CMOS

The IN74AC253 is identical in pinout to the LS/ALS253, HC/HCT253. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALS outputs.

The Address Inputs select one of four Data Inputs from each multiplexer. Each multiplexer has an active-low Output Enable control and a three-sta t e noninverting output.

•

Outputs Directly Interface to CMOS, NMOS, and TTL

•

Operating Voltage Range: 2.0 to 6.0 V

•

Low Input Current: 1.0 µA; 0.1 µA @ 25°C

•

High Noise Immunity Characteristic of CMOS Devices

•

Outputs Source/Sink 24 mA

IN74AC253

ORDERING INFORMATION

IN74AC253N Plastic

IN74AC253D SOIC

TA = -40° to 85° C for all

packages

LOGIC DIAGRAM

PIN 16 =V

PIN 8 = GND

CC

PIN ASSIGNMENT

FUNCTION TABLE

Inputs Output

A1 A0 Output

Enable XX H Z LL L D0 LH L D1 HL L D2 HH L D3

D0,D1...D3=the level of the respective Data Input

Z = high impedance X = don’t care

Y

346

IN74AC253

MAXIMUM RATINGS

*

Symbol Parameter Value Unit

V

CC

V

OUT

I

IN

I

OUT

I

CC

P

DC Supply Voltage (Referenced to GND) -0.5 to +7.0 V DC Input Voltage (Referenced to GND) -0.5 to VCC +0.5 V

IN

DC Output Voltage (Referenced to GND) -0.5 to VCC +0.5 V DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+

D

SOIC Package+

±

20

±

50

±

50

750 500

Tstg Storage Temperature -65 to +150

T

Lead Temperature, 1 mm from Case for 10 Seconds

L

260

(Plastic DIP or SOIC Package)

*

Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C

SOIC Package: : - 7 mW/°C from 65° to 125°C

mA mA mA

mW

°

C

°

C

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Min Max Unit

V

CC

VIN, V

T

J

T

A

I

OH

I

OL

tr, t

f

*

VIN from 30% to 70% V

This device c ontains p rote ction ci rcuitr y to guard a gainst damage d ue to high st atic voltages or electr ic fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, V GND≤(V

Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V Unused outputs must be left open.

DC Supply Voltage (Referenced to GND) 2.0 6.0 V DC Input Voltage, Output Voltage (Referenced to GND) 0 V

OUT

Junction Temperature (PDIP) 140 Operating Temperature, All Package Types -40 +85 Output Current - High -24 mA Output Current - Low 24 mA Input Rise and Fall Time

(except Schmitt Inputs)

IN

or V

OUT

)≤VCC.

CC

*

V V V

=3.0 V

CC

=4.5 V

CC

=5.5 V

CC

and V

IN

0 0 0

should be constrained to the range

OUT

CC

150

40 25

V

°

C

°

C

ns/V

CC

).

347

IN74AC253

DC ELECTRICAL CHARACTERISTICS

(Voltages Referenced to GND)

Symbol Parameter Test Conditions V

V

Minimum High-Level

IH

V

=0.1 V or VCC-0.1 V 3 .0

OUT

Input Voltage

V

Maximum Low -

IL

V

=0.1 V or VCC-0.1 V 3 .0

OUT

Level Input Voltage

V

OH

Minimum High-Level

I

OUT

≤ -50 µA

Output Voltage

*

VIN= VIH or V

IL

IOH=-12 mA I

=-24 mA

OH

I

=-24 mA

OH

V

OL

Maximum Low-Leve l

I

OUT

≤ 50 µA

Output Voltage

*

VIN=VIH or V

IL

IOL=12 mA I

=24 mA

OL

I

=24 mA

OL

I

IN

Maximum Input

VIN=VCC or GND 5.5

Leakage Current

I

OZ

OLD

Maximum ThreeState Leakage Current

+Minimum Dynamic

V

(OE)= VIH or V

IN

V V

V

or GND

IN =VCC OUT =VCC

OLD

or GND

=1.65 V Max 5.5 75 mA

IL

Output Current

I

OHD

+Minimum Dynamic

V

=3.85 V Min 5.5 -75 mA

OHD

Output Current

I

CC

Maximum Quiescent

VIN=VCC or GND 5.5 8.0 80 Supply Current (per Package)

*

All outputs loaded; thresholds on input associated with output under test. +Maximum test duration 2.0 ms, one output loaded at a time. Note: I

IN

and I

@ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V V

CC

V

4.5

5.5

4.5

5.5

3.0

4.5

5.5

3.0

4.5

5.5

3.0

4.5

5.5

3.0

4.5

5.5

CC

Guaranteed Limits

25 °C-40

2.1

3.15

3.85

0.9

1.35

1.65

2.9

4.4

5.4

2.56

3.86

4.86

0.1

0.36

±

0.1

±

0.5

°

C to

85°C

2.1

3.15

3.85

0.9

1.35

1.65

2.9

4.4

5.4

2.46

3.76

4.76

0.1

0.44

±

1.0

±

5.0

CC

Unit

V

µ

A

µ

A

µ

A

348

IN74AC253

AC ELECTRICAL CHARACTERISTICS

(CL=50pF, Input tr=tf=3.0 ns)

Symbol Parameter V

t

PLH

Propagation Delay,Address to Output Y (Figure 1)

t

PHL

Propagation Delay,Address to Output Y (Figure 1)

t

PLH

Propagation Delay, Data to Output Y (Figure 1)

t

PHL

Propagation Delay, Data to Output Y (Figure 1)

t

PZH

Propagation Delay, Output Enable to Y (Figure 2)

t

PZL

Propagation Delay, Output Enable to Y (Figure 2)

t

PHZ

Propagation Delay, Output Enable to Y (Figure 2)

t

PLZ

Propagation Delay, Output Enable to Y (Figure 2)

C

IN

Maximum Input Capacitance 5.0 4.5 4.5 pF

V

CC

3.3

5.0

3.3

5.0

3.3

5.0

3.3

5.0

3.3

5.0

3.3

5.0

3.3

5.0

3.3

5.0

*

Guaranteed Limits

25 °C-40

Min Max Min Max

2.0

2.5

2.0

1.5

2.0

1.5

2.0

1.5

15.5

11.0

16.0

11.5

14.5

10.0

13.0

9.5

8.0

6.0

8.0

6.0

9.5

8.0

7.0

2.0

1.5

2.0

1.5

1.0

1.5

1.0

°

C to

85°C

17.5

12.5

18.0

13.0

17.0

11.5

15.0

11.0

8.5

6.5

9.0

7.0

10.0

8.5

9.0

7.5

Unit

ns

C

PD

*

Voltage Range 3.3 V is 3.3 V ±0.3 V

Power Dissipation Capacitance 50 pF

Voltage Range 5.0 V is 5.0 V ±0.5 V

Figure 1. Switching Waveforms Figure 2. Switching Waveforms

Typical @25°C,VCC=5.0 V

349

IN74AC253

EXPANDED LOGIC DIAGRAM

350