THROUGH-HOLE Digital Shift Registers 2,274

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Part	Manufacturer	Logic IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	No. of Functions	Maximum Frequency At Nominal Supply	Technology	No. of Bits	Nominal Supply Voltage / Vsup (V)	Power Supplies (V)	Load Capacitance (CL)	Package Style (Meter)	Package Equivalence Code	Propagation Delay (tpd)	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	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
SN74LS166J4	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	8	5	5		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-XDIP-T16										NOT SPECIFIED	NOT SPECIFIED
SN74HC195JP4	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC	NO	1		CMOS	4		2/6		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	85 Cel	RIGHT			-40 Cel		DUAL		R-XDIP-T16
SN74LS595N1	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8	5	5		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T16				Not Qualified						NOT SPECIFIED	NOT SPECIFIED
SN74166J4	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	8	5	5		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-XDIP-T16										NOT SPECIFIED	NOT SPECIFIED
SN74LS594N1	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8				IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T16				Not Qualified						NOT SPECIFIED	NOT SPECIFIED
SN74198N-00	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8	5		15 pF	IN-LINE		30 ns		2.54 mm	70 Cel	BIDIRECTIONAL		POSITIVE EDGE	0 Cel		DUAL	35 MHz	R-PDIP-T24	5.25 V	5.08 mm	15.24 mm	Not Qualified	TRUE	4.75 V	127 mA	HOLD MODE				31.75 mm	TTL/H/L
SN74ALS299J4	Texas Instruments		COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	8	5	5		IN-LINE	DIP20,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-XDIP-T20										NOT SPECIFIED	NOT SPECIFIED
CD4034BEE4	Texas Instruments	PARALLEL IN PARALLEL OUT	MILITARY	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2000000 Hz	CMOS	8	5	5/15		IN-LINE	DIP24,.6	700 ns	Shift Registers	2.54 mm	125 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	-55 Cel	NICKEL PALLADIUM GOLD	DUAL	7 MHz	R-PDIP-T24	18 V	5.08 mm	15.24 mm	Not Qualified	TRUE	3 V		COMMON I/O PINS, SERIAL INPUT-PARALLEL OUTPUT AND SERIAL INPUT-SERIAL OUTPUT OPERATION AVAILABLE	e4			31.75 mm	4000/14000/40000
SN74L96N-00	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	5	5		15 pF	IN-LINE		80 ns		2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	5 MHz	R-PDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	40 mA	CLEAR FOLLOWED BY SELECTIVE PRESET IMITATES LOAD				19.305 mm	TTL/H/L
SN74ALS323NP1	Texas Instruments		COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8	5	5		IN-LINE	DIP20,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T20				Not Qualified
SN74LS395AJP4	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	4	5	5		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-XDIP-T16										NOT SPECIFIED	NOT SPECIFIED
SN74HC589NP3	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		CMOS	8		2/6		IN-LINE	DIP16,.3	335 ns	Shift Registers	2.54 mm	85 Cel	RIGHT	3-STATE	POSITIVE EDGE	-40 Cel		DUAL	25 MHz	R-PDIP-T16					TRUE					NOT SPECIFIED	NOT SPECIFIED		HC/UH
SN74195J	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	30000000 Hz	TTL	4	5	5	15 pF	IN-LINE	DIP16,.3	26 ns	Shift Registers	2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	30 MHz	R-GDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	63 mA	EXTERNAL CLOCK GATED MASTER RESET AND USED AS SHIFT CLOCK		NOT SPECIFIED	NOT SPECIFIED	19.56 mm	TTL/H/L
SN74ALS165NE4	Texas Instruments	PARALLEL IN SERIAL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8	5	5		IN-LINE	DIP16,.3	14 ns	Shift Registers	2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel	NICKEL PALLADIUM GOLD	DUAL	45 MHz	R-PDIP-T16	5.5 V	5.08 mm	7.62 mm	Not Qualified	COMPLEMENTARY	4.5 V		CLOCK INHIBIT	e4			19.305 mm	ALS
SN74ALS165JP4	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	8	5	5		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-XDIP-T16										NOT SPECIFIED	NOT SPECIFIED
SN74LS195AN	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	30000000 Hz	TTL	4	5	5	15 pF	IN-LINE	DIP16,.3	26 ns	Shift Registers	2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	30 MHz	R-PDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	21 mA	COMPLEMENTARY SERIAL SHIFT RIGHT OUTPUT; J AND KBAR SERIAL INPUT		NOT SPECIFIED	NOT SPECIFIED	19.305 mm	LS
SN74LS194AN-10	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	4	5		15 pF	IN-LINE		26 ns		2.54 mm	70 Cel	BIDIRECTIONAL		POSITIVE EDGE	0 Cel		DUAL	36 MHz	R-PDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	23 mA	HOLD MODE				19.305 mm	LS
SN74L99N	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	4				IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel	BIDIRECTIONAL			0 Cel		DUAL		R-PDIP-T16				Not Qualified
SN74LS589N3	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8				IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T16										NOT SPECIFIED	NOT SPECIFIED
SN74HC598N1	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		CMOS	8				IN-LINE	DIP20,.3		Shift Registers	2.54 mm	85 Cel				-40 Cel		DUAL		R-PDIP-T20				Not Qualified						NOT SPECIFIED	NOT SPECIFIED
SN74HC299NP3	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		CMOS	8		2/6		IN-LINE	DIP20,.3		Shift Registers	2.54 mm	85 Cel	BIDIRECTIONAL			-40 Cel		DUAL		R-PDIP-T20
SN74HC594JP4	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC	NO	1		CMOS	8		2/6		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	85 Cel				-40 Cel		DUAL		R-XDIP-T16
SN74LS597N1	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8				IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T16				Not Qualified						NOT SPECIFIED	NOT SPECIFIED
SN74LS596JP4	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	8	5	5		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-XDIP-T16										NOT SPECIFIED	NOT SPECIFIED
SN74L99N1	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	4				IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T16				Not Qualified
SN74LS165J-00	Texas Instruments	PARALLEL IN SERIAL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1		TTL	8	5		15 pF	IN-LINE		40 ns		2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	35 MHz	R-GDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	COMPLEMENTARY	4.75 V	36 mA	CLOCK INHIBIT				19.56 mm	LS
SN7491AN-00	Texas Instruments	SERIAL IN SERIAL OUT	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8	5		15 pF	IN-LINE		40 ns		2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	18 MHz	R-PDIP-T14	5.25 V	5.08 mm	7.62 mm	Not Qualified	COMPLEMENTARY	4.75 V	58 mA					19.305 mm	TTL/H/L
SN74HC673JTP4	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC	NO	1		CMOS	16				IN-LINE	DIP24,.3		Shift Registers	2.54 mm	85 Cel				-40 Cel		DUAL		R-XDIP-T24										NOT SPECIFIED	NOT SPECIFIED
SN74LS166NP3	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8	5	5		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T16										NOT SPECIFIED	NOT SPECIFIED
SN74LS672N	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	4	5		15 pF	IN-LINE	DIP20,.3	25 ns	Shift Registers	2.54 mm	70 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	0 Cel		DUAL		R-PDIP-T20	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	70 mA	MUXED REGISTERED/STANDARD PARALLEL OUTPUTS		NOT SPECIFIED	NOT SPECIFIED	24.325 mm	LS
SN74ALS164NP3	Texas Instruments		COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8	5	5		IN-LINE	DIP14,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T14										NOT SPECIFIED	NOT SPECIFIED
SN74HC589JP4	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1		CMOS	8		2/6		IN-LINE	DIP16,.3	335 ns	Shift Registers	2.54 mm	85 Cel	RIGHT	3-STATE	POSITIVE EDGE	-40 Cel		DUAL	25 MHz	R-CDIP-T16					TRUE					NOT SPECIFIED	NOT SPECIFIED		HC/UH
SN74LS195N-10	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	4	5		15 pF	IN-LINE		26 ns		2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	39 MHz	R-PDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	21 mA	COMPLEMENTARY SERIAL SHIFT RIGHT OUTPUT				19.305 mm	LS
SN74LS594NP1	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8				IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T16				Not Qualified						NOT SPECIFIED	NOT SPECIFIED
SN74LS164J-00	Texas Instruments	SERIAL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1		TTL	8	5		15 pF	IN-LINE		32 ns		2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	36 MHz	R-GDIP-T14	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	27 mA					19.56 mm	LS
SN74LS322AN3	Texas Instruments		COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	20000000 Hz	TTL	8	5	5		IN-LINE	DIP20,.3		Shift Registers	2.54 mm	70 Cel	RIGHT			0 Cel		DUAL		R-PDIP-T20
SN74ALS164N1	Texas Instruments		COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8	5	5		IN-LINE	DIP14,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T14				Not Qualified						NOT SPECIFIED	NOT SPECIFIED
SN74L91J-00	Texas Instruments	SERIAL IN SERIAL OUT	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1		TTL	8	5		50 pF	IN-LINE		150 ns		2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	6.5 MHz	R-GDIP-T14	5.25 V	5.08 mm	7.62 mm	Not Qualified	COMPLEMENTARY	4.75 V	6.6 mA					19.56 mm	TTL/H/L
SN74LS166J-00	Texas Instruments	PARALLEL IN SERIAL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1		TTL	8	5		15 pF	IN-LINE		35 ns		2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	35 MHz	R-GDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	38 mA	CLOCK INHIBIT				19.56 mm	LS
SN74HC597N3	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		CMOS	8		2/6		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	85 Cel				-40 Cel		DUAL		R-PDIP-T16										NOT SPECIFIED	NOT SPECIFIED
SN74LS96J-00	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1		TTL	5	5		15 pF	IN-LINE		40 ns		2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	25 MHz	R-GDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	20 mA	CLEAR FOLLOWED BY SELECTIVE PRESET IMITATES LOAD				19.56 mm	LS
SN74199J4	Texas Instruments		COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	8	5	5		IN-LINE	DIP24,.6		Shift Registers	2.54 mm	70 Cel	RIGHT			0 Cel		DUAL		R-XDIP-T24
CD74HCT299EE4	Texas Instruments	PARALLEL IN PARALLEL OUT	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	16000000 Hz	CMOS	8	5	5		IN-LINE	DIP20,.3	68 ns	Shift Registers	2.54 mm	125 Cel	BIDIRECTIONAL	3-STATE	POSITIVE EDGE	-55 Cel	NICKEL PALLADIUM GOLD	DUAL	16 MHz	R-PDIP-T20	5.5 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.5 V		COMMON I/O PINS; GATED OUTPUT CONTROL	e4			25.4 mm	HCT
SN74ALS963N	Texas Instruments		COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		TTL	8				IN-LINE	DIP20,.3		Shift Registers	2.54 mm	70 Cel				0 Cel		DUAL		R-PDIP-T20				Not Qualified
SN74199J	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1		TTL	8	5	5	15 pF	IN-LINE	DIP24,.6	30 ns	Shift Registers	2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL	25 MHz	R-GDIP-T24	5.25 V			Not Qualified	TRUE	4.75 V	127 mA	CLOCK INHIBIT; J AND KBAR SERIAL INPUT		NOT SPECIFIED	NOT SPECIFIED		TTL/H/L
SN7496J	Texas Instruments	PARALLEL IN PARALLEL OUT	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	10000000 Hz	TTL	5	5	5	15 pF	IN-LINE	DIP16,.3	40 ns	Shift Registers	2.54 mm	70 Cel	RIGHT		POSITIVE EDGE	0 Cel		DUAL		R-GDIP-T16	5.25 V	5.08 mm	7.62 mm	Not Qualified	TRUE	4.75 V	79 mA	CLEAR FOLLOWED BY SELECTIVE PRESET IMITATES LOAD		NOT SPECIFIED	NOT SPECIFIED	19.56 mm	TTL/H/L
SN74194J4	Texas Instruments		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC	NO	1		TTL	4	5	5		IN-LINE	DIP16,.3		Shift Registers	2.54 mm	70 Cel	BIDIRECTIONAL			0 Cel		DUAL		R-XDIP-T16
SN74HC673JT4	Texas Instruments		INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC	NO	1		CMOS	16				IN-LINE	DIP24,.3		Shift Registers	2.54 mm	85 Cel				-40 Cel		DUAL		R-XDIP-T24										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.