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. 163-0605
Mfr. Part No.MC74HC589ADTR2G
$0.229
Each (On a Reel of 2500)
units
TSSOP Shift Register 8 HC Surface Mount - Parallel to Serial, Serial 1 16 2 V 6 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm
RS Stock No. 305-018
Mfr. Part No.SN74LS164N
$1.33
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. 145-6407
Mfr. Part No.SN74LV8154PW
$0.986
Each (In a Tube of 70)
units
TSSOP Counter 8 LV Surface Mount Binary Up Counter 2 20 2 V 5.5 V 6.5 x 4.4 x 1.15mm 6.5mm 4.4mm
RS Stock No. 709-2485
Mfr. Part No.CD40103BEE4
$2.04
Each (In a Pack of 5)
units
PDIP Counter 8 4000 Through Hole Binary Down Counter 1 16 3 V 18 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS Stock No. 162-4296
Mfr. Part No.SN74LS592N
$15.487
Each (In a Tube of 25)
units
PDIP Counter 8 LS Through Hole Binary Up Counter 1 16 4.75 V 5.25 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS Stock No. 581-679
Mfr. Part No.TC74VHC165FK(EL,K)
BrandToshiba
$1.306
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. 333-2978
Mfr. Part No.SN74HC165N
$0.603
Each (In a Tube of 25)
units
PDIP Shift Register 8 HC Through Hole - Parallel to Serial Converter 1 16 2 V 6 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS Stock No. 171-3501
Mfr. Part No.74VHC161FT
BrandToshiba
$0.334
Each (In a Pack of 50)
units
TSSOP Counter - 74VHC Surface Mount Binary - 1 16 2 V 5.5 V 5.02 x 4.4 x 1mm 5.02mm 4.4mm
RS Stock No. 145-7567
Mfr. Part No.SN74AHC594PWR
$0.285
Each (On a Reel of 2000)
units
TSSOP Shift Register 8 AHC Surface Mount - Serial to Serial/Parallel 1 16 2 V 5.5 V 5 x 4.4 x 1.15mm 5mm 4.4mm
RS Stock No. 188-9228
Mfr. Part No.STPIC6D595MTR
$0.527
Each (On a Reel of 2500)
units
SO Shift Register 8 - Surface Mount - Serial to Parallel 1 16 4.5 V 5.5 V 10 x 4 x 1.64mm 10mm 4mm
RS Stock No. 145-1060
Mfr. Part No.CD74ACT164M
$0.557
Each (In a Tube of 50)
units
SOIC Shift Register 8 ACT Surface Mount - Serial to Parallel 1 14 4.5 V 5.5 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm
RS Stock No. 663-3085
Mfr. Part No.TPIC6A596DW
$5.28
Each
units
SOIC Shift Register 8 - Surface Mount - Serial to Serial/Parallel 1 24 4.5 V 5.5 V 15.4 x 7.52 x 2.35mm 15.4mm 7.52mm
RS Stock No. 165-4112
Mfr. Part No.MIC5841YWM
BrandMicrochip
$4.132
Each (In a Tube of 41)
units
SOIC W Driver, Shift Register 8 MIC Surface Mount - Serial to Serial/Parallel 1 18 - - 11.66 x 7.65 x 2.39mm 11.66mm 7.65mm
RS Stock No. 663-0281
Mfr. Part No.CD74HC390M
$0.896
Each (In a Pack of 10)
units
SOIC Counter, Divider 4 HC Surface Mount Decade Up Counter 2 16 2 V 6 V 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm
RS Stock No. 178-6999
Mfr. Part No.74HC4024D,652
BrandNexperia
$1.007
Each (In a Tube of 57)
units
SOIC Counter 7 HC Surface Mount Binary Up Counter 1 14 2 V 6 V 8.75 x 4 x 1.45mm 8.75mm 4mm
RS Stock No. 163-0599
Mfr. Part No.MC74HC4040ADTR2G
$0.297
Each (On a Reel of 2500)
units
TSSOP Counter 12 MC74 Surface Mount Binary Up Counter 1 16 2 V 6 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm
RS Stock No. 663-0121
Mfr. Part No.CD74HC191M
$0.698
Each (In a Pack of 5)
units
SOIC Counter 4 HC Surface Mount Binary Down Counter, Up Counter 1 16 2 V 6 V 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm
RS Stock No. 145-6015
Mfr. Part No.SN74LS293N
$3.536
Each (In a Tube of 25)
units
PDIP Counter, Divider 4 LS Through Hole Binary Up Counter 1 14 4.75 V 5.25 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm
RS Stock No. 663-0304
Mfr. Part No.CD74HC40103M
$1.432
Each (In a Pack of 5)
units
SOIC Counter 8 HC Surface Mount Binary Down Counter 1 16 2 V 6 V 9.9 x 3.91 x 1.58mm 9.9mm 3.91mm
RS Stock No. 756-2827
Mfr. Part No.TC4094BF(EL,N,F)
BrandToshiba
$2.716
Each (In a Pack of 5)
units
SOP Shift Register 8 CMOS Surface Mount - Serial/Parallel 1 16 3 V 18 V 10.8 x 5.3 x 1.5mm 10.8mm 5.3mm
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