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Part RoHS Manufacturer Logic IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Total Dose (V) Package Body Material Schmitt Trigger Surface Mount No. of Functions Maximum Frequency At Nominal Supply Technology Screening Level No. of Bits Load or Preset Input Packing Method Nominal Supply Voltage / Vsup (V) Power Supplies (V) Load Capacitance (CL) Package Style (Meter) Package Equivalence Code Operation Mode Propagation Delay (tpd) Maximum I (ol) Sub-Category Terminal Pitch Maximum Operating Temperature Count Direction Output Characteristics Trigger Type Minimum Operating Temperature Terminal Finish Terminal Position Minimum fmax JESD-30 Code Moisture Sensitivity Level (MSL) Maximum Supply Voltage (Vsup) Maximum Seated Height Width Qualification Minimum Supply Voltage (Vsup) Maximum Power Supply Current (ICC) Additional Features JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length Family

DM8280N

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

35000000 Hz

TTL

NO

5

5

IN-LINE

DIP14,.3

ASYNCHRONOUS

16 Amp

Counters

2.54 mm

70 Cel

UP

0 Cel

Tin/Lead (Sn/Pb)

DUAL

R-PDIP-T14

Not Qualified

45 mA

e0

74F163APC

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

4

YES

5

IN-LINE

SYNCHRONOUS

11 ns

2.54 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDIP-T16

5.5 V

5.08 mm

7.62 mm

4.5 V

19.305 mm

F/FAST

74F161ASJ

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

11 ns

1.27 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

2.108 mm

5.3 mm

4.5 V

10.11 mm

F/FAST

74F190SC

Texas Instruments

DECADE COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

12 ns

1.27 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

1.753 mm

3.9 mm

4.5 V

9.9 mm

F/FAST

74F161ASCX

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

11 ns

1.27 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

1.753 mm

3.9 mm

4.5 V

9.9 mm

F/FAST

74F169SJ

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

13 ns

1.27 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

70 MHz

R-PDSO-G16

5.5 V

2.108 mm

5.3 mm

4.5 V

10.11 mm

F/FAST

74F192SCX

Texas Instruments

DECADE COUNTER

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GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

13.5 ns

1.27 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

1.753 mm

3.9 mm

4.5 V

9.9 mm

F/FAST

74F193SC

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

13.5 ns

1.27 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

1.753 mm

3.9 mm

4.5 V

9.9 mm

F/FAST

74F191PC

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

4

YES

5

IN-LINE

SYNCHRONOUS

12 ns

2.54 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDIP-T16

5.5 V

5.08 mm

7.62 mm

4.5 V

19.305 mm

F/FAST

DM9316W

Texas Instruments

BINARY COUNTER

COMMERCIAL

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

4

YES

5

FLATPACK

SYNCHRONOUS

25 ns

1.27 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

DUAL

25 MHz

R-GDFP-F16

5.25 V

2.032 mm

6.604 mm

4.75 V

9.6645 mm

9316

74F193SJX

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

13.5 ns

1.27 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

2.108 mm

5.3 mm

4.5 V

10.11 mm

F/FAST

74F161APC

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

4

YES

5

IN-LINE

SYNCHRONOUS

11 ns

2.54 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDIP-T16

5.5 V

5.08 mm

7.62 mm

4.5 V

19.305 mm

F/FAST

74F163ASC

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

11 ns

1.27 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

1.753 mm

3.9 mm

4.5 V

9.9 mm

F/FAST

74F193SJ

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

13.5 ns

1.27 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

2.108 mm

5.3 mm

4.5 V

10.11 mm

F/FAST

74F191SC

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

SMALL OUTLINE

SYNCHRONOUS

12 ns

1.27 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

90 MHz

R-PDSO-G16

5.5 V

1.753 mm

3.9 mm

4.5 V

9.9 mm

F/FAST

DM8288J

Texas Instruments

DIVIDE BY 12 COUNTER

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC

NO

1

35000000 Hz

TTL

NO

5

5

IN-LINE

DIP14,.3

ASYNCHRONOUS

16 Amp

Counters

2.54 mm

70 Cel

UP

0 Cel

Tin/Lead (Sn/Pb)

DUAL

R-XDIP-T14

Not Qualified

45 mA

e0

SN74LS390NP3

Texas Instruments

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

2

TTL

NO

5

5

IN-LINE

DIP16,.3

ASYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

0 Cel

DUAL

R-PDIP-T16

SN74LS290NP1

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

NO

5

5

IN-LINE

DIP14,.3

ASYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

0 Cel

DUAL

R-PDIP-T14

Not Qualified

SN74S169N

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

40000000 Hz

TTL

4

YES

5

5

15 pF

IN-LINE

DIP16,.3

SYNCHRONOUS

15 ns

20 Amp

Counters

2.54 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

40 MHz

R-PDIP-T16

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

160 mA

TCO OUTPUT

NOT SPECIFIED

NOT SPECIFIED

19.305 mm

S

SN74ALS560ADW

Texas Instruments

DECADE COUNTER

COMMERCIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

TTL

4

YES

5

5

50 pF

SMALL OUTLINE

SOP20,.4

SYNCHRONOUS

18 ns

Counters

1.27 mm

70 Cel

UP

3-STATE

POSITIVE EDGE

0 Cel

DUAL

20 MHz

R-PDSO-G20

5.5 V

2.65 mm

7.5 mm

Not Qualified

4.5 V

33 mA

TCO OUTPUT; COUNT ENABLE INPUTS

NOT SPECIFIED

NOT SPECIFIED

12.8 mm

ALS

SN74LS290N-00

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

2

TTL

3

YES

5

15 pF

IN-LINE

ASYNCHRONOUS

50 ns

2.54 mm

70 Cel

UP

NEGATIVE EDGE

0 Cel

DUAL

32 MHz

R-PDIP-T14

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

15 mA

DIVIDE BY 2 AND DIVIDE BY 5 FUNCTIONS

19.305 mm

LS

SN74ALS869NT3

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

24

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

YES

IN-LINE

DIP24,.6

SYNCHRONOUS

8 Amp

Counters

2.54 mm

70 Cel

BIDIRECTIONAL

0 Cel

DUAL

R-PDIP-T24

SN74F163ADE4

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

90000000 Hz

TTL

4

YES

TUBE

5

5

50 pF

SMALL OUTLINE

SOP16,.25

SYNCHRONOUS

11 ns

20 Amp

Counter

1.27 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

NICKEL PALLADIUM GOLD

DUAL

90 MHz

R-PDSO-G16

1

5.5 V

1.75 mm

3.9 mm

Not Qualified

4.5 V

55 mA

TCO OUTPUT

e4

30

260

9.9 mm

F/FAST

SN74LS92J4

Texas Instruments

DIVIDE BY 12 COUNTER

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC

NO

1

TTL

NO

5

5

IN-LINE

DIP14,.3

ASYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

0 Cel

DUAL

R-XDIP-T14

SN74LS161AN3

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

4

YES

5

5

IN-LINE

DIP16,.3

SYNCHRONOUS

35 ns

Counters

2.54 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

DUAL

25 MHz

R-PDIP-T16

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

NOT SPECIFIED

NOT SPECIFIED

19.305 mm

LS

SN74LS191NP3

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

YES

5

5

IN-LINE

DIP16,.3

SYNCHRONOUS

Counters

2.54 mm

70 Cel

BIDIRECTIONAL

0 Cel

DUAL

R-PDIP-T16

SN7492AJP4

Texas Instruments

DIVIDE BY 12 COUNTER

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC

NO

1

TTL

NO

5

5

IN-LINE

DIP14,.3

ASYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

0 Cel

DUAL

R-XDIP-T14

SN74LS169BNE4

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

20000000 Hz

TTL

4

TUBE

5

5

45 pF

IN-LINE

DIP16,.3

SYNCHRONOUS

25 ns

24 Amp

Counters

2.54 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

Nickel/Palladium/Gold (Ni/Pd/Au)

DUAL

20 MHz

R-PDIP-T16

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

45 mA

TCO OUTPUT

e4

NOT SPECIFIED

NOT SPECIFIED

19.305 mm

LS

SN74160NP1

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

YES

5

5

IN-LINE

DIP16,.3

SYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

0 Cel

DUAL

R-PDIP-T16

Not Qualified

SN74ALS561AN

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

4

TUBE

5

5

50 pF

IN-LINE

DIP20,.3

SYNCHRONOUS

18 ns

24 Amp

Counters

2.54 mm

70 Cel

UP

3-STATE

POSITIVE EDGE

0 Cel

NICKEL PALLADIUM GOLD

DUAL

30 MHz

R-PDIP-T20

5.5 V

5.08 mm

7.62 mm

Not Qualified

4.5 V

33 mA

TCO OUTPUT; COUNT ENABLE INPUTS

e4

24.325 mm

ALS

SN74LS590DG4

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

20000000 Hz

TTL

8

NO

TUBE

5

5

45 pF

SMALL OUTLINE

SOP16,.25

ASYNCHRONOUS

33 ns

24 Amp

Counters

1.27 mm

70 Cel

UP

3-STATE

POSITIVE EDGE

0 Cel

NICKEL PALLADIUM GOLD

DUAL

35 MHz

R-PDSO-G16

1

5.25 V

1.75 mm

3.9 mm

Not Qualified

4.75 V

65 mA

TCO OUTPUT; REGISTERED OUTPUTS

e4

30

260

9.9 mm

LS

SN74LS193NP1

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

YES

5

5

IN-LINE

DIP16,.3

SYNCHRONOUS

Counters

2.54 mm

70 Cel

BIDIRECTIONAL

0 Cel

DUAL

R-PDIP-T16

Not Qualified

SN74LS490N

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

2

25000000 Hz

TTL

4

YES

5

5

15 pF

IN-LINE

DIP16,.3

ASYNCHRONOUS

54 ns

8 Amp

Counters

2.54 mm

70 Cel

UP

NEGATIVE EDGE

0 Cel

DUAL

25 MHz

R-PDIP-T16

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

26 mA

NOT SPECIFIED

NOT SPECIFIED

19.305 mm

LS

SN74144J-00

Texas Instruments

DISPLAY DRIVER COUNTER

COMMERCIAL

THROUGH-HOLE

24

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

1

TTL

4

YES

5

15 pF

IN-LINE

SYNCHRONOUS

60 ns

2.54 mm

70 Cel

UP

OPEN-COLLECTOR

POSITIVE EDGE

0 Cel

DUAL

12 MHz

R-GDIP-T24

5.25 V

5.715 mm

15.24 mm

Not Qualified

4.75 V

93 mA

32.05 mm

TTL/H/L

SN74S169FN3

Texas Instruments

BINARY COUNTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

YES

5

5

CHIP CARRIER

LDCC20,.4SQ

SYNCHRONOUS

Counters

1.27 mm

70 Cel

BIDIRECTIONAL

0 Cel

QUAD

S-PQCC-J20

160 mA

NOT SPECIFIED

NOT SPECIFIED

SN74ALS560AN1

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

YES

5

5

IN-LINE

DIP20,.3

SYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

3-STATE

0 Cel

DUAL

R-PDIP-T20

Not Qualified

SN74AS163FN

Texas Instruments

BINARY COUNTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

75000000 Hz

TTL

YES

5

5

CHIP CARRIER

LDCC20,.4SQ

SYNCHRONOUS

20 Amp

Counters

1.27 mm

70 Cel

UP

0 Cel

QUAD

S-PQCC-J20

Not Qualified

53 mA

SN74AS160FN

Texas Instruments

DECADE COUNTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

YES

CHIP CARRIER

LDCC20,.4SQ

SYNCHRONOUS

Counters

1.27 mm

70 Cel

UP

0 Cel

QUAD

S-PQCC-J20

Not Qualified

SN74AS162N1

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

YES

IN-LINE

DIP16,.3

SYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

0 Cel

DUAL

R-PDIP-T16

Not Qualified

SN74LS192J-00

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

1

TTL

4

YES

5

15 pF

IN-LINE

SYNCHRONOUS

47 ns

2.54 mm

70 Cel

BIDIRECTIONAL

POSITIVE EDGE

0 Cel

DUAL

25 MHz

R-GDIP-T16

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

34 mA

19.56 mm

LS

SN74LS696FN3

Texas Instruments

DECADE COUNTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

YES

CHIP CARRIER

LDCC20,.4SQ

SYNCHRONOUS

Counters

1.27 mm

70 Cel

BIDIRECTIONAL

3-STATE

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74ALS561J4

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

1

TTL

YES

5

5

IN-LINE

DIP20,.3

SYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

3-STATE

0 Cel

DUAL

R-XDIP-T20

SN74177NP3

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

YES

5

5

IN-LINE

DIP14,.3

ASYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

0 Cel

DUAL

R-PDIP-T14

5962-01-329-5757

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

CERAMIC

NO

1

TTL

YES

5

5

IN-LINE

DIP16,.3

SYNCHRONOUS

Counters

2.54 mm

70 Cel

BIDIRECTIONAL

3-STATE

0 Cel

DUAL

R-XDIP-T16

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN74LS693NP1

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

YES

IN-LINE

DIP20,.3

SYNCHRONOUS

Counters

2.54 mm

70 Cel

UP

3-STATE

0 Cel

DUAL

R-PDIP-T20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN74LS163ANSRG4

Texas Instruments

BINARY COUNTER

COMMERCIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

25000000 Hz

TTL

4

YES

TR

5

5

SMALL OUTLINE

SOP16,.3

SYNCHRONOUS

27 ns

8 Amp

Counters

1.27 mm

70 Cel

UP

POSITIVE EDGE

0 Cel

NICKEL PALLADIUM GOLD

DUAL

25 MHz

R-PDSO-G16

1

5.25 V

2 mm

5.3 mm

Not Qualified

4.75 V

32 mA

TCO OUTPUT

e4

30

260

10.2 mm

LS

SN74LS390N3

Texas Instruments

DECADE COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

2

TTL

3

NO

5

5

IN-LINE

DIP16,.3

ASYNCHRONOUS

60 ns

Counters

2.54 mm

70 Cel

UP

NEGATIVE EDGE

0 Cel

DUAL

25 MHz

R-PDIP-T16

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

DIVIDE BY 2 AND DIVIDE BY 5 FUNCTIONS

NOT SPECIFIED

NOT SPECIFIED

19.305 mm

LS

SN74LS161J

Texas Instruments

BINARY COUNTER

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

CERAMIC

NO

1

25000000 Hz

TTL

YES

5

5

IN-LINE

DIP16,.3

SYNCHRONOUS

8 Amp

Counters

2.54 mm

70 Cel

UP

0 Cel

DUAL

R-XDIP-T16

Not Qualified

32 mA

NOT SPECIFIED

NOT SPECIFIED

Digital Counters

Digital counters are electronic circuits that can be used to count and keep track of the number of events or occurrences in a digital system. They are commonly used in digital systems to generate timing signals, to control sequencing, and to implement digital control functions.

Digital counters can be designed using various technologies, including transistor-transistor logic (TTL), complementary metal-oxide-semiconductor (CMOS), and field-programmable gate arrays (FPGAs). They can also be designed using various types of flip-flops, such as D flip-flops, JK flip-flops, and T flip-flops.

Digital counters can be classified into two main types: synchronous counters and asynchronous counters. Synchronous counters use a common clock signal to synchronize the operation of all the flip-flops in the counter. Asynchronous counters, on the other hand, do not use a common clock signal and rely on the propagation delay of the flip-flops to sequence their operation.

Digital counters can also be classified based on their counting sequence. They can count up, down, or both up and down, depending on the application. Up counters increment the count each time an input pulse is received, while down counters decrement the count each time an input pulse is received. Up-down counters can count both up and down, depending on the direction of the input signal.

Digital counters can be used in various applications, including frequency division, time delay generation, event counting, and sequence control. They can be used to generate timing signals for clocking digital circuits, to control the sequencing of operations in a digital system, and to implement digital control functions, such as shift registers and sequence generators.