QCCJ Digital Shift Registers 190

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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 Packing Method Nominal Supply Voltage / Vsup (V) Power Supplies (V) Load Capacitance (CL) Package Style (Meter) Package Equivalence Code 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 Output Polarity 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

SN74AS95FN

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

BIDIRECTIONAL

0 Cel

QUAD

S-PQCC-J20

Not Qualified

SN74HC166FN

Texas Instruments

INDUSTRIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

8

2/6

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

85 Cel

-40 Cel

QUAD

S-PQCC-J20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN74LS194AFN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

SN74LS165AFN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

SN74AS195FN

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

RIGHT

0 Cel

QUAD

S-PQCC-J20

Not Qualified

SN74S195FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

SN74AS299FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74LS195AFN

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

5

15 pF

CHIP CARRIER

LDCC20,.4SQ

26 ns

Shift Registers

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

30 MHz

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.75 V

21 mA

COMPLEMENTARY SERIAL SHIFT RIGHT OUTPUT; J AND KBAR SERIAL INPUT

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

LS

SN74LS165AFN

Texas Instruments

PARALLEL IN SERIAL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

15 pF

CHIP CARRIER

LDCC20,.4SQ

25 ns

Shift Registers

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

25 MHz

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

COMPLEMENTARY

4.75 V

30 mA

CLOCK INHIBIT

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

LS

SN74ALS963FN

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

RIGHT

3-STATE

POSITIVE EDGE

0 Cel

QUAD

30 MHz

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.5 V

PARALLEL OUTPUT IS REGISTERED; DUAL RANK SHIFT REGISTER

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

ALS

SN74LS598FN

Texas Instruments

PARALLEL IN SERIAL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

45 pF

CHIP CARRIER

LDCC20,.4SQ

28 ns

Shift Registers

1.27 mm

70 Cel

RIGHT

3-STATE

POSITIVE EDGE

0 Cel

QUAD

20 MHz

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.75 V

80 mA

COMMON I/O PINS; MUXED SERIAL INPUTS; TOTEMPOLE SERIAL OUTPUT

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

LS

SN74LS323FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

SN74ALS165FN-00

Texas Instruments

PARALLEL IN SERIAL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

CHIP CARRIER

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

COMPLEMENTARY

4.5 V

CLOCK INHIBIT

8.9662 mm

ALS

SN74LS598FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74LS599FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74AS395FN-00

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

CHIP CARRIER

1.27 mm

70 Cel

RIGHT

3-STATE

NEGATIVE EDGE

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.5 V

TOTEMPOLE SERIAL SHIFT RIGHT OUTPUT

8.9662 mm

AS

SN74AS95FN-00

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

CHIP CARRIER

1.27 mm

70 Cel

RIGHT

NEGATIVE EDGE

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.5 V

SEPARATE CLOCKS FOR SHIFT RIGHT & LOAD

8.9662 mm

AS

SN74S299FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74LS95BFN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

SN74AS395FN

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN74HC166FN3

Texas Instruments

INDUSTRIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

8

2/6

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

85 Cel

-40 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74LS164FN

Texas Instruments

SERIAL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

15 pF

CHIP CARRIER

LDCC20,.4SQ

32 ns

Shift Registers

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

25 MHz

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.75 V

27 mA

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

LS

SN74LS96FN

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

5

5

15 pF

CHIP CARRIER

40 ns

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.75 V

20 mA

CLEAR FOLLOWED BY SELECTIVE PRESET IMITATES LOAD

8.9662 mm

LS

SN74HC165FN

Texas Instruments

INDUSTRIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

8

2/6

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

85 Cel

-40 Cel

QUAD

S-PQCC-J20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN74LS589FN

Texas Instruments

PARALLEL IN SERIAL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

30 pF

CHIP CARRIER

LDCC20,.4SQ

30 ns

Shift Registers

1.27 mm

70 Cel

RIGHT

3-STATE

POSITIVE EDGE

0 Cel

QUAD

20 MHz

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.75 V

45 mA

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

LS

SN74LS674FN3

Texas Instruments

COMMERCIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

16

CHIP CARRIER

LDCC28,.5SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J28

NOT SPECIFIED

NOT SPECIFIED

SN74ALS964FN

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

RIGHT

3-STATE

POSITIVE EDGE

0 Cel

QUAD

30 MHz

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.5 V

PARALLEL OUTPUT IS REGISTERED; DUAL RANK SHIFT REGISTER

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

ALS

SN74LS322AFN

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

25000000 Hz

TTL

8

5

5

15 pF

CHIP CARRIER

LDCC20,.4SQ

35 ns

Shift Registers

1.27 mm

70 Cel

RIGHT

3-STATE

POSITIVE EDGE

0 Cel

QUAD

20 MHz

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.75 V

60 mA

COMMON I/O PINS; SIGN EXTEND FUNCTION; TOTEMPOLE SERIAL SHIFT RIGHT OUTPUT

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

LS

SN74S194FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

BIDIRECTIONAL

0 Cel

QUAD

S-PQCC-J20

SN74LS164FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

RIGHT

0 Cel

QUAD

S-PQCC-J20

SN74AS323FN-00

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

CHIP CARRIER

1.27 mm

70 Cel

BIDIRECTIONAL

3-STATE

POSITIVE EDGE

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.5 V

38 mA

HOLD MODE; COMMON I/O PINS; TOTEMPOLE SERIAL SHIFT RIGHT & SHIFT LEFT OUTPUTS; GATED OUTPUT CONTROL

8.9662 mm

AS

SN74LS166AFN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74ALS323FN-00

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

50 pF

CHIP CARRIER

19 ns

1.27 mm

70 Cel

BIDIRECTIONAL

3-STATE

POSITIVE EDGE

0 Cel

QUAD

30 MHz

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.5 V

38 mA

HOLD MODE; COMMON I/O PINS; TOTEMPOLE SERIAL SHIFT RIGHT & SHIFT LEFT OUTPUTS; GATED OUTPUT CONTROL

8.9662 mm

ALS

SN74AS194FN

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN74HC194FN

Texas Instruments

INDUSTRIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

4

2/6

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

85 Cel

-40 Cel

QUAD

S-PQCC-J20

Not Qualified

SN74LS595FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74AS395FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74ALS165FN

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN74S195FN

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

5

15 pF

CHIP CARRIER

LDCC20,.4SQ

16.5 ns

Shift Registers

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

70 MHz

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.75 V

109 mA

COMPLEMENTARY SERIAL SHIFT RIGHT OUTPUT; J AND KBAR SERIAL INPUT

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

S

SN74ALS165FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74ALS299FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74ALS166FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74LS299FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74LS597FN

Texas Instruments

PARALLEL IN SERIAL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

30 pF

CHIP CARRIER

LDCC20,.4SQ

30 ns

Shift Registers

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

20 MHz

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.75 V

53 mA

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

LS

SN74ALS164FN-00

Texas Instruments

SERIAL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

CHIP CARRIER

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.5 V

8.9662 mm

ALS

SN74AS195FN-00

Texas Instruments

PARALLEL IN PARALLEL OUT

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

4

5

CHIP CARRIER

1.27 mm

70 Cel

RIGHT

POSITIVE EDGE

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

TRUE

4.5 V

COMPLEMENTARY SERIAL SHIFT RIGHT OUTPUT; J AND KBAR SERIAL INPUT

8.9662 mm

AS

SN74AS323FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

SN74ALS164FN3

Texas Instruments

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

8

5

5

CHIP CARRIER

LDCC20,.4SQ

Shift Registers

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

NOT SPECIFIED

NOT SPECIFIED

Digital Shift Registers

Digital shift registers are electronic circuits that can store and shift data in a serial-in, serial-out (SISO) or parallel-in, serial-out (PISO) fashion. They are commonly used in digital systems for data storage, data transfer, and signal processing applications.

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

Digital shift registers can be classified into various types based on their operation mode and the direction of data shift. The most common types of shift registers include:

1. Serial-in, serial-out (SISO) shift registers: These shift registers have one serial input and one serial output. They can shift data in one direction, either left or right, and can be used for data storage, delay generation, and signal processing applications.

2. Parallel-in, serial-out (PISO) shift registers: These shift registers have multiple parallel inputs and one serial output. They can shift data from multiple inputs to a single output in a serial fashion and can be used for data transfer and signal processing applications.

3. Serial-in, parallel-out (SIPO) shift registers: These shift registers have one serial input and multiple parallel outputs. They can shift data from a single input to multiple outputs in a parallel fashion and can be used for data storage and signal processing applications.

4. Parallel-in, parallel-out (PIPO) shift registers: These shift registers have multiple parallel inputs and multiple parallel outputs. They can shift data from multiple inputs to multiple outputs in a parallel fashion and can be used for data transfer and signal processing applications.

Digital shift registers are used in various applications, including serial-to-parallel conversion, parallel-to-serial conversion, data storage, data transfer, and signal processing. They are essential components of digital systems and can be found in many electronic devices, such as computers, mobile phones, and digital cameras.