Clock, Timing & Frequency ICs

Clock, timing & frequency ICs are electronic devices that provide timing frequency to circuits. A clock IC is an electronic device that is used for the generation, manipulation, distribution, conditioning, or controlling of a timing signal in electronic systems. A timing IC is used to control sequences of events in electronic systems. Frequency ICs are circuits that have been designed to keep a circuit tuned to the frequency of an incoming radio signal.

What types of clock, timing & frequency ICs are there?

Clock, timing & frequency ICs have a range of different functions such as;

  • Clock Drivers, Distribution
  • Clock Synthesizers
  • Delay Lines & Timing Elements
  • Clock Buffers
  • Bus Repeaters
  • Function Generator IC
  • Phase Detectors
  • Real-Time Clocks
  • Timer Circuits
  • Watchdog Timers

Typical applications

Clock, timing & frequency ICs are widely used in an array of applications such as;

  • Low jitter, low phase noise clock distribution
  • Wireless transceivers
  • ATE (Automatic test equipment)
  • Sensory applications
  • Frequency translation and low-frequency PLLs
Bus Repeaters
Bus Repeaters
Clock Buffers
Clock Buffers
Clock Drivers & Distribution
Clock Drivers & Distribution
Clock Synthesizers
Clock Synthesizers
Delay Lines & Timing Elements
Delay Lines & Timing Elements
Phase Detectors
Phase Detectors
Real Time Clocks
Real Time Clocks
Timer Circuits
Timer Circuits
Watchdog Timers
Watchdog Timers

1168 Products showing for Clock, Timing & Frequency ICs

1 of 24
In Stock
Texas Instruments SE SE555P Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 709-2110
  • Mfr. Part No. SE555P
Subtotal (1 pack of 5 units)
$10.62(exc. GST)
In Stock
Texas Instruments SE Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 709-2110P
  • Mfr. Part No. SE555P
Subtotal 5 units (supplied in a tube)
$3.69(exc. GST)
In Stock
Texas Instruments TLC Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 346-7024P
  • Mfr. Part No. TLC555IP
Subtotal 1 unit (supplied in a tube)
$2.23(exc. GST)
In Stock
Texas Instruments TLC TLC555IP Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 346-7024
  • Mfr. Part No. TLC555IP
Subtotal (1 unit)
$4.44(exc. GST)
In Stock
Texas Instruments NE Monostable Circuit, 1, 8-Pin PDIP
  • RS Stock No. 866-0199
  • Mfr. Part No. NE555P
Subtotal (1 tube of 50 units)
$26.45(exc. GST)
Last RS stock
Maxim Integrated DS1315-5+, Real Time Clock 8 bit D:DM:M:Y, 16-Pin PDIP Through Hole
  • RS Stock No. 190-5155
  • Mfr. Part No. DS1315-5+
Subtotal (1 unit)
$41.47(exc. GST)
Last RS stock
Skyworks Solutions Inc Si5351A-B-GT Function Generator IC, 10-Pin 3 MSOP
  • RS Stock No. 823-1987
  • Mfr. Part No. Si5351A-B-GT
Subtotal (1 pack of 5 units)
$15.21(exc. GST)
In Stock
Texas Instruments CD Programmable Timer Circuit, 1, 16-Pin PDIP
  • RS Stock No. 145-0016
  • Mfr. Part No. CD4536BE
Subtotal (1 tube of 25 units)
$21.35(exc. GST)
In Stock
Texas Instruments SA SA555P Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 517-1618
  • Mfr. Part No. SA555P
Subtotal (1 pack of 10 units)
$4.94(exc. GST)
Last RS stock
Maxim Integrated DS1306+, Real Time Clock 96 bit DW:DM:M:Y, 16-Pin PDIP Through Hole
  • RS Stock No. 189-8627
  • Mfr. Part No. DS1306+
Subtotal (1 pack of 2 units)
$27.19(exc. GST)
Being discontinued
Texas Instruments NE NE555D Precision Timer, 1, 8-Pin SOIC
  • RS Stock No. 785-818
  • Mfr. Part No. NE555D
Subtotal (1 unit)
$2.75(exc. GST)
In Stock
Texas Instruments CD Programmable Timer Circuit, 1, 14-Pin PDIP
  • RS Stock No. 923-6712
  • Mfr. Part No. CD4541BE
Subtotal (1 tube of 25 units)
$18.50(exc. GST)
In Stock
Texas Instruments SE Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 121-9248
  • Mfr. Part No. SE555P
Subtotal (1 tube of 50 units)
$21.25(exc. GST)
In Stock
Renesas Electronics ICM Programmable Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 921-5374
  • Mfr. Part No. ICM7555IPAZ
Subtotal (1 pack of 10 units)
$8.86(exc. GST)
In Stock
Texas Instruments NE NE556N Timer Circuit, 2, 14-Pin PDIP
  • RS Stock No. 528-416
  • Mfr. Part No. NE556N
Subtotal (1 tube of 25 units)
$15.50(exc. GST)
In Stock
Microchip, Real Time Clock 64 bit DW:DM:M:Y, 8-Pin PDIP Through Hole
  • RS Stock No. 774-7403
  • Mfr. Part No. MCP7940M-I/P
Subtotal (1 bag of 10 units)
$13.57(exc. GST)
In Stock
Texas Instruments TLC Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 121-8520
  • Mfr. Part No. TLC555IP
Subtotal (1 tube of 50 units)
$62.15(exc. GST)
Currently unavailable
Texas Instruments TLC TLC556CN Timer Circuit, 2, 14-Pin PDIP
  • RS Stock No. 638-958
  • Mfr. Part No. TLC556CN
Subtotal (1 unit)
$3.19(exc. GST)
In Stock
STMicroelectronics M41ST85WMX6TR, Real Time Clock 64 bit Binary, D:D:M:Y:C, 28-Pin SOX Surface
  • RS Stock No. 188-9366P
  • Mfr. Part No. M41ST85WMX6TR
Subtotal 1 unit (supplied on a continuous strip)
$13.56(exc. GST)
In Stock
Texas Instruments CD Programmable Timer Circuit, 1, 16-Pin PDIP
  • RS Stock No. 709-2532P
  • Mfr. Part No. CD4536BE
Subtotal 10 units (supplied in a tube)
$11.97(exc. GST)
Last RS stock
Texas Instruments SA Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 517-1618P
  • Mfr. Part No. SA555P
Subtotal 10 units (supplied in a tube)
$6.25(exc. GST)
In Stock
Texas Instruments TLC TLC555QDR Timer Circuit, 1, 8-Pin SOIC
  • RS Stock No. 662-4009
  • Mfr. Part No. TLC555QDR
Subtotal (1 pack of 10 units)
$13.43(exc. GST)
In Stock
Texas Instruments Clock Synthesiser 1 16-Pin 18 V PDIP
  • RS Stock No. 923-6693
  • Mfr. Part No. CD4046BE
Subtotal (1 tube of 25 units)
$20.35(exc. GST)
In Stock
STMicroelectronics M48T35Y-70MH1F, Real Time Clock 32 kbit Battery Backed RTC with SRAM BCD, 28-Pin DIP Surface
  • RS Stock No. 151-845
  • Mfr. Part No. M48T35Y-70MH1F
Subtotal (1 unit)
$34.33(exc. GST)
In Stock
Texas Instruments LM555CN Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 197-7308
  • Mfr. Part No. LM555CN/NOPB
Subtotal (1 pack of 10 units)
$14.32(exc. GST)
Currently unavailable
Texas Instruments TLC Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 662-4677P
  • Mfr. Part No. TLC551CP
Subtotal 5 units (supplied in a tube)
$20.14(exc. GST)
In Stock
STMicroelectronics M48T18-100PC1, Real Time Clock 8.19 kB DW:DM:M:Y, 28-Pin PCDIP Through Hole
  • RS Stock No. 714-7298
  • Mfr. Part No. M48T18-100PC1
Subtotal (1 unit)
$63.76(exc. GST)
Temporarily out of stock
STMicroelectronics M41T11MH6F, Real Time Clock 64 bit DW:DM:M:Y, 28-Pin SOH Surface
  • RS Stock No. 714-7285
  • Mfr. Part No. M41T11MH6F
Subtotal (1 unit)
$14.00(exc. GST)
In Stock
Renesas Electronics CP82C54 CP82C54Z Programmable Timer, 6, 24-Pin PDIP
  • RS Stock No. 235-5221
  • Mfr. Part No. CP82C54Z
Subtotal (1 unit)
$27.69(exc. GST)
In Stock
Texas Instruments CD74HC4046AE PLL Circuit 1 16-Pin 6 V PDIP
  • RS Stock No. 662-4589
  • Mfr. Part No. CD74HC4046AE
Subtotal (1 pack of 10 units)
$11.29(exc. GST)
In Stock
Texas Instruments TLC TLC555CDR Timer, 1, 8-Pin SOIC
  • RS Stock No. 662-4006
  • Mfr. Part No. TLC555CDR
Subtotal (1 pack of 10 units)
$12.67(exc. GST)
Currently unavailable
Texas Instruments TLC TLC551CP Timer Circuit, 1, 8-Pin PDIP
  • RS Stock No. 662-4677
  • Mfr. Part No. TLC551CP
Subtotal (1 pack of 5 units)
$26.66(exc. GST)
In Stock
STMicroelectronics M48T58Y-70PC1, Real Time Clock 8.19 kB DW:DM:M:Y, 28-Pin PCDIP Through Hole
  • RS Stock No. 686-5030
  • Mfr. Part No. M48T58Y-70PC1
Subtotal (1 unit)
$50.20(exc. GST)
In Stock
Texas Instruments CD4046BE Clock Synthesiser 1 16-Pin 18 V PDIP
  • RS Stock No. 709-1965
  • Mfr. Part No. CD4046BE
Subtotal (1 pack of 10 units)
$9.00(exc. GST)
In Stock
Texas Instruments CD74HCT7046AE PLL Circuit 1 16-Pin 5.5 V PDIP
  • RS Stock No. 650-122
  • Mfr. Part No. CD74HCT7046AE
Subtotal (1 unit)
$6.07(exc. GST)
In Stock
Toshiba TC74HC7292AF(F) Clock Divider, 16-Pin 10 SOP
  • RS Stock No. 541-9487
  • Mfr. Part No. TC74HC7292AF(F)
Subtotal (1 pack of 5 units)
$11.00(exc. GST)
In Stock
STMicroelectronics M48T35Y-70PC1, Real Time Clock 32.77 kB DW:DM:M:Y, 28-Pin PCDIP Through Hole
  • RS Stock No. 624-8466
  • Mfr. Part No. M48T35Y-70PC1
Subtotal (1 unit)
$68.49(exc. GST)
In Stock
Microchip MCP79410-I/SN, Real Time Clock 64 bit DW:DM:M:Y, 8-Pin SOIC Surface
  • RS Stock No. 726-3949
  • Mfr. Part No. MCP79410-I/SN
Subtotal (1 pack of 5 units)
$8.38(exc. GST)
Currently unavailable
Maxim Integrated, Real Time Clock 8 bit D:DM:M:Y, 16-Pin PDIP Through Hole
  • RS Stock No. 190-4730
  • Mfr. Part No. DS1315-5+
Subtotal (1 tube of 25 units)
$784.50(exc. GST)
In Stock
Texas Instruments NE NE555P Monostable Circuit, 1, 8-Pin PDIP
  • RS Stock No. 221-5535
  • Mfr. Part No. NE555P
Subtotal (1 pack of 50 units)
$26.45(exc. GST)
In Stock
Microchip, Real Time Clock 64 bit Calendar DW:DM:M:Y, 8-Pin PDIP Through Hole
  • RS Stock No. 810-3933
  • Mfr. Part No. MCP7940N-I/P
Subtotal (1 pack of 10 units)
$16.14(exc. GST)
In Stock
Renesas Electronics ICM7555 ICM7555CBAZ-T Timer Circuit, 1, 8-Pin SOIC
  • RS Stock No. 196-8887
  • Mfr. Part No. ICM7555CBAZ-T
Subtotal (1 reel of 2500 units)
$1,497.50(exc. GST)
In Stock
Texas Instruments PLL Clock Driver, 16-Pin SSOP
  • RS Stock No. 620-2189
  • Mfr. Part No. DAC1220E
Subtotal (1 unit)
$68.03(exc. GST)
Last RS stock
Analog Devices AD9851BRSZ Direct Digital Synthesiser 5 28-Pin 5.25 V SSOP
  • RS Stock No. 413-011
  • Mfr. Part No. AD9851BRSZ
Subtotal (1 unit)
$65.71(exc. GST)
Last RS stock
Micro Crystal RV-3049-C2-STD-025, Real Time Clock 8 bit DW:DM:M:Y, 10-Pin SON Surface
  • RS Stock No. 690-2848
  • Mfr. Part No. RV-3049-C2-STD-025
Subtotal (1 unit)
$14.64(exc. GST)
In Stock
Microchip MCP7940NT-I/MNY, Real Time Clock 64 bit DW:DM:M:Y, 8-Pin TDFN Surface
  • RS Stock No. 824-6447
  • Mfr. Part No. MCP7940NT-I/MNY
Subtotal (1 pack of 10 units)
$14.90(exc. GST)
In Stock
STMicroelectronics M41T00SM6F, Real Time Clock 8 bit Real Time Clock DW:DM:M:Y, 8-Pin SOIC Surface
  • RS Stock No. 714-0855
  • Mfr. Part No. M41T00SM6F
Subtotal (1 unit)
$5.19(exc. GST)
Last RS stock
Analog Devices AD9850BRSZ Digital Synthesiser 5 28-Pin 5.25 V SSOP
  • RS Stock No. 412-933
  • Mfr. Part No. AD9850BRSZ
Subtotal (1 unit)
$53.57(exc. GST)
In Stock
Microchip Programmable Delay 14.8 ns Delay Line 32-Pin MLF
  • RS Stock No. 911-2705
  • Mfr. Part No. SY89295UMG
Subtotal (1 unit)
$23.96(exc. GST)
In Stock
STMicroelectronics M48T58-70PC1, Real Time Clock 8.19 kB DW:DM:M:Y, 28-Pin PCDIP Through Hole
  • RS Stock No. 686-5036
  • Mfr. Part No. M48T58-70PC1
Subtotal (1 unit)
$68.42(exc. GST)
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