Counter ICs

A Shift Register is a sequential logic device made up of a cascade of flip-flops, through which a sequence of bits are ’shifted’. These devices are commonly used to convert between serial and parallel interfaces.

How it works – basic example

In a Shift Register the output of each flip-flop is connected to the input of the next flip-flop in the cascade. With each cycle of the connected clock, the bits are ’shifted’ down the cascade by one flip-flop.

A simple analogy to understand the basic theory or operation would be to consider a glass tube with an opening both ends, and placing a ball marked ’0’ or ’1’ into one end of the tube at a regular intervals.

As each ball is placed into the tube, all the balls are ’shifted’ along by one position. The sequence in which the balls marked ’0’ and ’1’ where fed in is preserved. Also each time one ball is fed in, the ball that has been in the cascade the longest drops out. So if the tube can contain 4 balls at any one time, this could be described as a 4-bit Shift Register.

Common Types of Shift Register

• Serial-in serial-out (SISO) – In this type of Shift Register, the data input and output is serial. With each clock cycle a new bit is fed into the cascade, with the bit furthest along the cascade exiting as an output. So in a 4-bit register, the output trails the input by 4 clock cycles. This matches the simple example above, with the ball that exits the tube being the output.

• Serial-in parallel-out (SIPO) – In this configuration data is converted from serial into parallel format. As described for the SISO variant above, data is fed in serially and shifted down the cascade, the difference is that each flip-flop has an output, allowing the entire bit array to be output simultaneously as a parallel output. This may be done using a latched of buffered output.

• Parallel-in serial-out (PISO) – This variant takes a parallel input and converts into a serial output. To do this the shift register must implement a write/shift sequence. The parallel data input is (written) into each flip-flop of the array simultaneously in one clock cycle, then for the next cycles the register goes into shift mode as the bits are shifted down the flip-flop cascade, being output as serial data. The process then repeats.

• Parallel-in parallel-out (PIPO) – This type of register differs slightly from the others in that inputs and outputs of each flip-flop in the array are not interconnected. Each flip-flop takes one bit of the parallel input, stores it for a cycle, and then outputs the data simultaneously with the other flip-flops in the register, creating a parallel output that matches the input. Like the SISO type above, PIPO variants can be used to temporarily store data, or act a time delay device.

• Universal Shift Register – A configurable Shift Register that can be programmed to act as a SISO, SIPO, PISO or PIPO device, often on the fly.

...
Lees meer Lees minder

Filters

61 - 80 van 624 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Package Type Logic Function Number of Stages Logic Family Mounting Type Counter Type Operation Mode Number of Elements Pin Count Minimum Operating Supply Voltage Maximum Operating Supply Voltage Dimensions Length Width
RS-stocknr. 178-6992
Fabrikantnummer74HC164D,652
FabrikantNexperia
€ 0,259
Each (In a Tube of 57)
Aantal stuks
SOIC Shift Register 8 HC Surface Mount - Serial to Parallel 1 14 2 V 6 V 8.75 x 4 x 1.45mm 8.75mm 4mm
RS-stocknr. 169-7294
Fabrikantnummer74LVC595APW,112
FabrikantNexperia
€ 0,235
Each (On a Reel of 2400)
Aantal stuks
TSSOP Shift Register 8 74LVC Surface Mount - Serial to Serial/Parallel 1 16 1.65 V 3.6 V 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm
RS-stocknr. 662-7276
FabrikantnummerCD74HCT165M96
€ 0,10
Each (In a Pack of 5)
Aantal stuks
SOIC Shift Register 8 HCT Surface Mount - Serial to Serial/Parallel 1 16 4.5 V 5.5 V 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm
RS-stocknr. 368-6950
FabrikantnummerHEF4015BT,652
FabrikantNexperia
€ 0,39
Each (In a Tube of 50)
Aantal stuks
SOIC Shift Register 4 4000 Surface Mount - Serial to Parallel 2 16 3 V 15 V 10 x 4 x 1.45mm 10mm 4mm
RS-stocknr. 144-9974
FabrikantnummerSN74HC165PW
€ 0,409
Each (In a Tube of 90)
Aantal stuks
TSSOP Shift Register 8 HC Surface Mount - Parallel to Serial 1 16 2 V 6 V 5 x 4.4 x 1.15mm 5mm 4.4mm
RS-stocknr. 910-1420
FabrikantnummerMIC5891YWM
FabrikantMicrochip
€ 2,528
Each (In a Pack of 5)
Aantal stuks
SOIC W Driver, Shift Register 8 MIC Surface Mount - Serial to Serial/Parallel 1 16 5 V 12 V 10.39 x 7.65 x 2.39mm 10.39mm 7.65mm
RS-stocknr. 162-4293
FabrikantnummerSN74LS164N
€ 0,582
Each (In a Tube of 25)
Aantal stuks
PDIP Shift Register 8 LS Through Hole - Serial to Parallel 1 14 4.75 V 5.25 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS-stocknr. 145-0389
FabrikantnummerSN74HC594D
€ 0,55
Each (In a Tube of 40)
Aantal stuks
SOIC Shift Register 8 HC Surface Mount - Serial to Serial/Parallel 1 16 2 V 6 V 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm
RS-stocknr. 660-7486
FabrikantnummerTPIC6595DWR
€ 2,61
Each (In a Pack of 5)
Aantal stuks
SOIC Shift Register 8 - Surface Mount - Serial to Serial/Parallel 1 20 4.5 V 5.5 V 12.8 x 7.52 x 2.35mm 12.8mm 7.52mm
RS-stocknr. 162-7412
FabrikantnummerSN74LS165AN
€ 0,602
Each (In a Tube of 25)
Aantal stuks
PDIP Shift Register 8 LS Through Hole - Serial to Serial/Parallel 1 16 4.75 V 5.25 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS-stocknr. 662-9604
FabrikantnummerCD4033BE
€ 1,186
Each (In a Pack of 5)
Aantal stuks
PDIP Counter, Divider 5 4000 Through Hole Decade Up Counter 1 16 3 V 18 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS-stocknr. 910-1528
FabrikantnummerMIC5821YN
FabrikantMicrochip
€ 2,46
Each (In a Pack of 5)
Aantal stuks
PDIP Driver, Shift Register 8 MIC Through Hole - Serial to Serial/Parallel 1 16 - - 19.81 x 6.35 x 3.3mm 19.81mm 6.35mm
RS-stocknr. 527-205
FabrikantnummerTPIC6595DW
€ 2,996
Each (In a Pack of 5)
Aantal stuks
SOIC Shift Register 8 - Surface Mount - Serial to Serial/Parallel 1 20 4.5 V 5.5 V 12.8 x 7.52 x 2.35mm 12.8mm 7.52mm
RS-stocknr. 305-018
FabrikantnummerSN74LS164N
€ 2,21
Each
Aantal stuks
PDIP Shift Register 8 LS Through Hole - Serial to Parallel 1 14 4.75 V 5.25 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS-stocknr. 922-2943
FabrikantnummerSN74LS90N
€ 0,456
Each (In a Tube of 25)
Aantal stuks
PDIP Counter, Divider 4 LS Through Hole Decade Up Counter 1 14 4.75 V 5.25 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS-stocknr. 663-1341
FabrikantnummerSN74AHCT594PW
€ 0,89
Each (In a Pack of 5)
Aantal stuks
TSSOP Shift Register 8 AHCT Surface Mount - Serial to Serial/Parallel 1 16 4.5 V 5.5 V 5 x 4.4 x 1.15mm 5mm 4.4mm
RS-stocknr. 663-1984
FabrikantnummerSN74HC165PW
€ 0,45
Each (In a Pack of 10)
Aantal stuks
TSSOP Shift Register 8 HC Surface Mount - Parallel to Serial 1 16 2 V 6 V 5 x 4.4 x 1.15mm 5mm 4.4mm
RS-stocknr. 688-1537
FabrikantnummerMC14094BDTR2G
FabrikantON Semiconductor
€ 0,11
Each (In a Pack of 5)
Aantal stuks
TSSOP Shift Register 8 4000 Surface Mount - Up Counter 1 16 3 V 18 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm
RS-stocknr. 526-640
FabrikantnummerSN74HC165DR
€ 0,277
Each (In a Pack of 25)
Aantal stuks
SOIC Shift Register 8 HC Surface Mount - Serial to Serial/Parallel 1 16 2 V 6 V 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm
RS-stocknr. 146-0420
Fabrikantnummer74HCT165PW,112
FabrikantNexperia
€ 0,466
Each (In a Tube of 96)
Aantal stuks
TSSOP Shift Register 8 74HCT Surface Mount - Serial/Parallel to Serial 1 16 4.5 V 5.5 V 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm
Related Products
Texas Instruments range of Counters and Shift Registers ...
Description:
Texas Instruments range of Counters and Shift Registers from the 74LS Family of Low Power Schottky Logic ICs. The 74LS Family use bipolar junction technology coupled with Schottky diode clamps to achieve operating speeds equal to the original 74TTL family ...
Low-Voltage CMOS logicOperating Voltage: 2 to 5.5Compatibility: Input ...
Description:
Low-Voltage CMOS logicOperating Voltage: 2 to 5.5Compatibility: Input LVTTL/TTL, Output LVCMOS.
A range of 74HC Family CMOS Logic Counters ...
Description:
A range of 74HC Family CMOS Logic Counters and Shift Registers from NXP. The 74HC Family use silicon gate CMOS technology to achieve operating speeds similar to the LSTTL family but with the low power consumption of standard CMOS integrated ...
A range of 74HC Family CMOS Logic Counters ...
Description:
A range of 74HC Family CMOS Logic Counters and Shift Registers from NXP. The 74HC Family use silicon gate CMOS technology to achieve operating speeds similar to the LSTTL family but with the low power consumption of standard CMOS integrated ...