Datasheet IN74HC154N, IN74HC154DW Datasheet (INTEGRAL)

TECHNICAL DATA

1-of-16 Decoder/Demultiplexer

High-Performance Silicon-Gate CMOS

The IN74HC154 is identical in pinout to the LS/ALS154. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.

This device, when enabled, selects one of 16 active-low outputs. Two active-low Chip Selects are provided to facilitate the chipselect, demultiplexing, and cascading functions. When either Chip Select is high, all outputs are high. The demultiplexing function is accomplished by using the Address inputs to select the desired device output.

The IN74HC154 is primarily used for memory address decoding and data routing applications.

•

Outputs Directly Interface to CMOS, NMOS, and TTL

•

Operating Voltage Range: 2.0 to 6.0 V

•

Low Input Current: 1.0 µA

•

High Noise Immunity Characteristic of CMOS Devices

IN74HC154

ORDERING INFORMATION

IN74HC154N Plastic

IN74HC154DW SOIC

TA = -55° to 125° C for all

packages

LOGIC DIAGRAM

PIN ASSIGNMENT

176

PIN 24 =V

PIN 12 = GND

CC

IN74HC154

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) -1.5 to VCC +1.5 V

IN

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

D

SOIC Package+

±

20

±

25

±

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

A

tr, t

f

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

Operating Temperature, All Package Types -55 +125 Input Rise and Fall Time (Figure 1) VCC =2.0 V

IN

or V

OUT

)≤VCC.

V

CC

V

CC

and V

IN

=4.5 V

=6.0 V

OUT

should be constrained to the range

0 0 0

CC

1000

500 400

V

°

C

ns

CC

).

177

IN74HC154

DC ELECTRICAL CHARACTERISTICS

(Voltages Referenced to GND)

Symbol Parameter Test Conditions V

V

OH

V

OL

I

IN

Minimum High-Level

IH

Input Voltage

Maximum Low -

IL

Level Input Voltage

Minimum High-Level Output Voltage

Maximum Low-Level Output Voltage

Maximum Inp ut

V

=0.1 V or VCC-0.1 V

OUT



≤

I

20 µA

OUT

V

=0.1 V or VCC-0.1 V

OUT



 ≤

I

20 µA

OUT

VIN=VIH or V



 ≤

I

OUT

VIN=VIH or V



 ≤

I

OUT



 ≤

I

OUT

VIN=VIH or V



 ≤

I

OUT

VIN=VIH or V



 ≤

I

OUT



 ≤

I

OUT

IL

20 µA

IL

4.0 mA

5.2 mA

IL

20 µA

IL

4.0 mA .5.2 mA

VIN=VCC or GND 6.0

Leakage Current

I

CC

Maximum Quiescen t Supply Current

VIN=VCC or GND

=0µA

I

OUT

(per Package)

V

CC

Guaranteed Limit

25 °C

to

≤

85

°

C

≤

125

°

-55°C

2.0

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

4.5

6.0

2.0

4.5

6.0

4.5

6.0

1.5

3.15

4.2

0.3

0.9

1.2

1.9

4.4

5.9

3.98

5.48

0.1

0.26

±

0.1

1.5

3.15

4.2

0.3

0.9

1.2

1.9

4.4

5.9

3.84

5.34

0.1

0.33

±

1.0

1.5

3.15

4.2

0.3

0.9

1.2

1.9

4.4

5.9

3.7

5.2

0.1

0.4

±

6.0 8.0 80 160

C

1.0

Unit

V

µ

A

µ

A

178

IN74HC154

AC ELECTRICAL CHARACTERISTICS

Symbol Parameter V

(CL=50pF,Input tr=tf=6.0 ns)

V

CC

Guaranteed Limit

25 °C to

≤85°

C≤125°C

Unit

-55°C

t

TLH

PLH

, t

C

IN

C

PD

Maximum Propagation Delay, Input A to

PHL

Output Y (Figures 1and 3)

Maximum Propagation Delay , CS to

PHL

Output Y (Figures 2 and 3)

Maximum Output Transition Time, Any Output

THL

(Figures 2 and 3)

2.0

4.5

6.0

2.0

4.5

6.0

2.0

4.5

6.0

190

38 32

175

35 30

75 15 13

240

48 41

220

44 37

95 19 16

Maximum Input Capacitance - 10 10 10 pF

Power Dissipation Capacitance (Per Package) Used to determine the no-load dynamic power

consumption: P

D=CPDVCC

2

f+ICCV

CC

Typical @25°C,V

80 pF

=5.0 V

CC

285

57 48

265

53 45

110

22 19

ns

FUNCTION TABLE

Inputs Outputs

CS1 CS2 A3 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 Y13 Y14 Y15

LLLLLLLHHHHHHHHHHHHHHH LLLLLHHLHHHHHHHHHHHHHH LLLLHLHHLHHHHHHHHHHHHH LLLLHHHHHLHHHHHHHHHHHH LLLHLLHHHHLHHHHHHHHHHH LLLHLHHHHHHLHHHHHHHHHH LLLHHLHHHHHHLHHHHHHHHH LLLHHHHHHHHHHLHHHHHHHH LLHLLLHHHHHHHHLHHHHHHH LLHLLHHHHHHHHHHLHHHHHH LLHLHLHHHHHHHHHHLHHHHH LLHLHHHHHHHHHHHHHLHHHH LLHHLLHHHHHHHHHHHHLHHH LLHHLHHHHHHHHHHHHHHLHH LLHHHLHHHHHHHHHHHHHHLH LLHHHHHHHHHHHHHHHHHHHL LHXXXXHHHHHHHHHHHHHHHH HLXXXXHHHHHHHHHHHHHHHH HHXXXXHHHHHHHHHHHHHHHH

X = Don’t Care

179

IN74HC154

Figure 1. Switching Waveforms Figure 2. Switching Waveforms

180

Figure 3. Test Circuit

EXPANDED LOGIC DIAGRAM

IN74HC154

181

Datasheet IN74HC154N, IN74HC154DW Datasheet (INTEGRAL) [en, hu]