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. 672-2850
Mfr. Part No.TC4017BP(N,F)
BrandToshiba
£0.472
Each (In a Pack of 5)
Units
PDIP Counter, Divider 5 4000 Through Hole Decade Up Counter 1 16 3 V 18 V 19.25 x 6.4 x 3.5mm 19.25mm 6.4mm
RS Stock No. 540-0095
Mfr. Part No.TC74HC595AP(F)
BrandToshiba
£0.672
Each (In a Pack of 5)
Units
PDIP Shift Register 8 HC Through Hole - Serial to Serial/Parallel 1 16 2 V 6 V 19.25 x 6.4 x 3.5mm 19.25mm 6.4mm
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. 540-0304
Mfr. Part No.TC74HC4060AP(F)
BrandToshiba
£0.628
Each (In a Pack of 5)
Units
PDIP Counter 14 HC Through Hole Binary Up Counter 1 16 2 V 6 V 19.75 x 6.4 x 3.5mm 19.75mm 6.4mm
RS Stock No. 540-0203
Mfr. Part No.TC74HC4020AP(F)
BrandToshiba
£0.502
Each (In a Pack of 5)
Units
PDIP Counter 14 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. 539-9642
Mfr. Part No.TC74HC165AP(F)
BrandToshiba
£0.618
Each (In a Pack of 5)
Units
PDIP Shift Register 8 HC Through Hole - Serial to Serial/Parallel 1 16 2 V 6 V 19.25 x 6.4 x 3.5mm 19.25mm 6.4mm
RS Stock No. 541-9702
Mfr. Part No.TC4520BP(F)
BrandToshiba
£0.582
Each (In a Pack of 5)
Units
PDIP Counter 4 4000 Through Hole Binary Up Counter 2 16 3 V 18 V 19.75 x 6.4 x 3.5mm 19.75mm 6.4mm
RS Stock No. 541-9588
Mfr. Part No.TC4020BP(F)
BrandToshiba
£0.582
Each (In a Pack of 5)
Units
PDIP Counter, Divider 14 4000 Through Hole Binary Up Counter 1 16 3 V 18 V 19.75 x 6.4 x 3.5mm 19.75mm 6.4mm
RS Stock No. 541-9623
Mfr. Part No.TC4040BP(F)
BrandToshiba
£0.392
Each (In a Pack of 5)
Units
PDIP Counter, Divider 12 4000 Through Hole Binary Up Counter 1 16 3 V 18 V 19.25 x 6.4 x 3.5mm 19.25mm 6.4mm
RS Stock No. 896-2628
Mfr. Part No.74VHC164FT(BE)
BrandToshiba
£0.493
Each (In a Pack of 10)
Units
TSSOP Shift Register - VHC Surface Mount - - 1 14 2 V 5.5 V 5 x 4.4 x 1mm 5mm 4.4mm
RS Stock No. 539-8655
Mfr. Part No.TC74AC163P(F)
BrandToshiba
£0.598
Each (In a Pack of 5)
Units
PDIP Counter 4 AC Through Hole Binary Up Counter 1 16 2 V 5.5 V 19.25 x 6.4 x 3.5mm 19.25mm 6.4mm
RS Stock No. 539-8661
Mfr. Part No.TC74AC164P(F)
BrandToshiba
£0.612
Each (In a Pack of 5)
Units
PDIP Shift Register 8 AC Through Hole - Serial to Parallel 1 14 2 V 5.5 V 19.25 x 6.4 x 3.5mm 19.25mm 6.4mm
RS Stock No. 663-4315
Mfr. Part No.TC4520BF(N,F)
BrandToshiba
£0.628
Each (In a Pack of 5)
Units
SOP Counter 4 4000 Surface Mount Binary Up Counter 2 16 3 V 18 V 10.8 x 5.3 x 1.5mm 10.8mm 5.3mm
RS Stock No. 539-8649
Mfr. Part No.TC74AC161P(F)
BrandToshiba
£0.598
Each (In a Pack of 5)
Units
PDIP Counter 4 AC Through Hole Binary Up Counter 1 16 2 V 5.5 V 19.25 x 6.4 x 3.5mm 19.25mm 6.4mm
RS Stock No. 644-0331
Mfr. Part No.TC74AC161FT
BrandToshiba
£0.826
Each (In a Pack of 5)
Units
TSSOP Counter 4 AC Surface Mount Binary Up Counter 1 16 2 V 5.5 V 5 x 4.4 x 1mm 5mm 4.4mm
RS Stock No. 644-0375
Mfr. Part No.TC74AC164FT
BrandToshiba
£0.47
Each (In a Pack of 5)
Units
TSSOP Shift Register 8 AC Surface Mount - Serial to Parallel 1 14 2 V 5.5 V 5 x 4.4 x 1mm 5mm 4.4mm
RS Stock No. 581-669
Mfr. Part No.TC74VHC164FK(EL,K)
BrandToshiba
£0.414
Each (In a Pack of 5)
Units
VSSOP Shift Register 8 VHC Surface Mount - Serial to Parallel 1 14 2 V 5.5 V 4 x 3 x 0.8mm 4mm 3mm
RS Stock No. 581-679
Mfr. Part No.TC74VHC165FK(EL,K)
BrandToshiba
£0.532
Each (In a Pack of 5)
Units
VSSOP Shift Register 8 VHC Surface Mount - Serial to Serial/Parallel 1 16 2 V 5.5 V 4 x 3 x 0.8mm 4mm 3mm
RS Stock No. 541-9241
Mfr. Part No.TC74HC4060AF(F)
BrandToshiba
£0.628
Each (In a Pack of 5)
Units
SOP Counter 14 HC Surface Mount Binary Up Counter 1 16 2 V 6 V 10.8 x 5.3 x 1.5mm 10.8mm 5.3mm
RS Stock No. 581-742
Mfr. Part No.TC74VHC4020FK(EL,K
BrandToshiba
£0.40
Each (In a Pack of 5)
Units
VSSOP Counter, Divider 14 VHC Surface Mount Binary Up Counter 1 16 2 V 5.5 V 4 x 3 x 0.8mm 4mm 3mm