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 exampleIn 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.

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Description Price 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 Stock No. 177-6708
Mfr. Part No.74HC4060D,652
BrandNexperia
£0.37
Each
Units
SOIC Counter 14 HC Surface Mount Binary Up Counter 1 16 2 V 6 V 10 x 4 x 1.45mm 10mm 4mm
RS Stock No. 540-0231
Mfr. Part No.TC74HC4040AP(F)
BrandToshiba
£0.432
Each (In a Pack of 5)
Units
PDIP Counter 12 HC Through Hole Binary Up Counter 1 16 2 V 6 V 19.25 x 6.4 x 3.5mm 19.25mm 6.4mm
RS Stock No. 145-9134
Mfr. Part No.MIC5821YN
BrandMicrochip
£1.75
Each (In a Tube of 25)
Units
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 Stock No. 865-1599
Mfr. Part No.HEF4021BT,652
BrandNexperia
£0.175
Each (In a Tube of 50)
Units
SOIC Shift Register 8 HEF Surface Mount - Parallel to Serial 1 16 3 V 15 V 10 x 4 x 1.45mm 10mm 4mm
RS Stock No. 910-1528
Mfr. Part No.MIC5821YN
BrandMicrochip
£2.12
Each (In a Pack of 5)
Units
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 Stock No. 689-8724
Mfr. Part No.MC74HC595ADG
£0.372
Each (In a Pack of 5)
Units
SOIC Shift Register 8 HC Surface Mount - Serial to Serial/Parallel 1 16 2 V 6 V 10 x 4 x 1.5mm 10mm 4mm
RS Stock No. 689-8727
Mfr. Part No.MC74HC595ADR2G
£0.32
Each (In a Pack of 5)
Units
SOIC Shift Register 8 HC Surface Mount - Serial to Serial/Parallel 1 16 2 V 6 V 10 x 4 x 1.5mm 10mm 4mm
RS Stock No. 163-2475
Mfr. Part No.MC74HC595ADR2G
£0.088
Each (On a Reel of 2500)
Units
SOIC Shift Register 8 HC Surface Mount - Serial to Serial/Parallel 1 16 2 V 6 V 10 x 4 x 1.5mm 10mm 4mm
RS Stock No. 145-2818
Mfr. Part No.MC74HC595ADG
£0.277
Each (In a Tube of 48)
Units
SOIC Shift Register 8 HC Surface Mount - Serial to Serial/Parallel 1 16 2 V 6 V 10 x 4 x 1.5mm 10mm 4mm
RS Stock No. 162-4293
Mfr. Part No.SN74LS164N
£0.404
Each (In a Tube of 25)
Units
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 Stock No. 166-1285
Mfr. Part No.HEF4520BT,652
BrandNexperia
£0.408
Each (In a Tube of 50)
Units
SOIC Counter 4 4000 Surface Mount Binary Up Counter 2 16 3 V 15 V 10 x 4 x 1.45mm 10mm 4mm
RS Stock No. 305-018
Mfr. Part No.SN74LS164N
£0.61
Each
Units
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 Stock No. 663-1981
Mfr. Part No.SN74HC165NE4
£0.36
Each (In a Pack of 5)
Units
PDIP Shift Register 8 HC Through Hole - Serial to Serial/Parallel 1 16 2 V 6 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS Stock No. 483-7963
Mfr. Part No.HEF4520BT,652
BrandNexperia
£0.449
Each (In a Pack of 20)
Units
SOIC Counter 4 4000 Surface Mount Binary Up Counter 2 16 3 V 15 V 10 x 4 x 1.45mm 10mm 4mm
RS Stock No. 145-7158
Mfr. Part No.SN74HC165NE4
£0.303
Each (In a Tube of 25)
Units
PDIP Shift Register 8 HC Through Hole - Serial to Serial/Parallel 1 16 2 V 6 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS Stock No. 518-9035
Mfr. Part No.MC14060BDG
£0.41
Each
Units
SOIC Counter, Divider 14 4000 Surface Mount Binary Up Counter 1 16 3 V 18 V 10 x 4 x 1.5mm 10mm 4mm
RS Stock No. 518-9035A
Mfr. Part No.MC14060BDG
£0.37
Each (In a Pack of 48)
Units
SOIC Counter, Divider 14 4000 Surface Mount Binary Up Counter 1 16 3 V 18 V 10 x 4 x 1.5mm 10mm 4mm
RS Stock No. 662-9578
Mfr. Part No.CD4022BEE4
£0.402
Each (In a Pack of 5)
Units
PDIP Counter, Divider 4 4000 Through Hole Octal Up Counter 1 16 3 V 18 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS Stock No. 806-3191
Mfr. Part No.MC14060BDR2G
£0.271
Each (In a Pack of 25)
Units
SOIC Counter 14 MC140 Surface Mount Binary Up Counter 1 16 3 V 18 V 10 x 4 x 1.5mm 10mm 4mm
RS Stock No. 355-8934
Mfr. Part No.HEF4060BT,652
BrandNexperia
£2.00
Each
Units
SOIC Counter, Divider 14 4000 Surface Mount Binary Up Counter 1 16 3 V 15 V 10 x 4 x 1.45mm 10mm 4mm
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