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TTL Clock & Timer ICs

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Types of Clock & Timer ICs

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) Filter the results in the table by unit price based on your quantity.	Qty.
Timers & Support Products LOG CMOS OSILATR TIMER MC14536BDWG onsemi 1: HK$8.63 21,369In Stock	Mfr. Part No. MC14536BDWG Mouser Part No 863-MC14536BDWG	onsemi	Timers & Support Products LOG CMOS OSILATR TIMER	Datasheet	21,369In Stock	HK$8.63 HK$6.17 HK$5.56 HK$4.87 View HK$4.55 HK$4.36 HK$4.23 HK$4.04 HK$3.94	Min.: 1 Mult.: 1
Timers & Support Products Highly Stable 555 Ti mer 8-VSSOP 0 to 70 A 926-LM555CMM/NOPB LM555CMMX/NOPB Texas Instruments 1: HK$10.44 6,999In Stock	Mfr. Part No. LM555CMMX/NOPB Mouser Part No 926-LM555CMMX/NOPB	Texas Instruments	Timers & Support Products Highly Stable 555 Ti mer 8-VSSOP 0 to 70 A 926-LM555CMM/NOPB	Datasheet	6,999In Stock	Cut Tape HK$10.44 HK$7.41 HK$6.71 HK$5.93 Reel HK$4.96 View HK$5.56 HK$5.33 HK$5.16 HK$4.83 MouseReel Available	Min.: 1 Mult.: 1 : 3,500
Timers & Support Products Dual Precision NE556NSR Texas Instruments 1: HK$5.43 3,877In Stock	Mfr. Part No. NE556NSR Mouser Part No 595-NE556NSR	Texas Instruments	Timers & Support Products Dual Precision	Datasheet	3,877In Stock	Cut Tape HK$5.43 HK$3.82 HK$3.43 HK$2.98 Reel HK$2.39 View HK$2.77 HK$2.64 HK$2.53 HK$2.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Timers & Support Products This is a common 555 timer/oscillator from TI. A classic for all of those first year circuits projects where you need to blink an LED generate tone and thousands of other great beginning projects. Google around for a huge list of resources and exam COM-16473 SparkFun 1: HK$8.80 186In Stock 360On Order	Mfr. Part No. COM-16473 Mouser Part No 474-COM-16473	SparkFun	Timers & Support Products This is a common 555 timer/oscillator from TI. A classic for all of those first year circuits projects where you need to blink an LED generate tone and thousands of other great beginning projects. Google around for a huge list of resources and exam		186In Stock 360On Order	HK$8.80	Min.: 1 Mult.: 1
Timers & Support Products Precision NE555P Texas Instruments 1: HK$4.85 61,959In Stock 5,000Expected 1/2/2027	Mfr. Part No. NE555P Mouser Part No 595-NE555P	Texas Instruments	Timers & Support Products Precision Learn More about Texas Instruments ti ne555 timer	Datasheet	61,959In Stock 5,000Expected 1/2/2027	HK$4.85 HK$3.38 HK$2.82 HK$2.61 View HK$2.42 HK$2.31 HK$2.22 HK$2.14 HK$2.10	Min.: 1 Mult.: 1
Timers & Support Products Single Precision Tim er NE555DR1G4 Texas Instruments 1: HK$4.19 1,477In Stock New Product	Mfr. Part No. NE555DR1G4 Mouser Part No 595-NE555DR1G4 New Product	Texas Instruments	Timers & Support Products Single Precision Tim er Learn More about Texas Instruments ti ne555 timer	Datasheet	1,477In Stock	Cut Tape HK$4.19 HK$2.93 HK$2.61 HK$2.24 Reel HK$1.78 View HK$2.08 HK$1.97 HK$1.89 HK$1.73	Min.: 1 Mult.: 1 : 2,500
Timers & Support Products 3-18V 24 Flip-Flop MC14536BDWR2G onsemi 1: HK$8.55 7,785In Stock	Mfr. Part No. MC14536BDWR2G Mouser Part No 863-MC14536BDWR2G	onsemi	Timers & Support Products 3-18V 24 Flip-Flop	Datasheet	7,785In Stock	Cut Tape HK$8.55 HK$6.16 HK$5.55 HK$4.87 Reel HK$4.23 View HK$4.55 HK$4.36 HK$4.04 HK$3.94 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Timers & Support Products Timer LM555CM/NOPB Texas Instruments 1: HK$12.08 4,090In Stock	Mfr. Part No. LM555CM/NOPB Mouser Part No 926-LM555CM/NOPB	Texas Instruments	Timers & Support Products Timer	Datasheet	4,090In Stock	HK$12.08 HK$8.80 HK$7.84 HK$6.52 View HK$6.35 HK$6.17 HK$6.04 HK$5.84 HK$5.71	Min.: 1 Mult.: 1
Timers & Support Products TIMER LM555CN/NOPB Texas Instruments 1: HK$11.84 11,400In Stock	Mfr. Part No. LM555CN/NOPB Mouser Part No 926-LM555CN/NOPB	Texas Instruments	Timers & Support Products TIMER	Datasheet	11,400In Stock	HK$11.84 HK$8.63 HK$7.46 HK$6.81 View HK$6.40 HK$6.15 HK$5.77 HK$5.71 HK$5.57	Min.: 1 Mult.: 1
Timers & Support Products Prec Timers A 595-NA 555D A 595-NA555D A A 595-NA555D NA555DR Texas Instruments 1: HK$2.14 16,191In Stock	Mfr. Part No. NA555DR Mouser Part No 595-NA555DR	Texas Instruments	Timers & Support Products Prec Timers A 595-NA 555D A 595-NA555D A A 595-NA555D	Datasheet	16,191In Stock	Cut Tape HK$2.14 HK$1.46 HK$1.30 HK$1.11 Reel HK$0.855 View HK$1.02 HK$0.962 HK$0.921 HK$0.83 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Timers & Support Products Dual Prec Timers A 5 95-NA556D A 595-NA5 A 595-NA556D NA556DR Texas Instruments 1: HK$6.66 10,414In Stock	Mfr. Part No. NA556DR Mouser Part No 595-NA556DR	Texas Instruments	Timers & Support Products Dual Prec Timers A 5 95-NA556D A 595-NA5 A 595-NA556D	Datasheet	10,414In Stock	Cut Tape HK$6.66 HK$4.73 HK$4.24 HK$3.71 Reel HK$3.02 View HK$3.45 HK$3.30 HK$3.16 HK$2.94 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Timers & Support Products Precision A 595-NE55 5D A 595-NE555D A 5 A 595-NE555D NE555DR Texas Instruments 1: HK$2.88 84,246In Stock	Mfr. Part No. NE555DR Mouser Part No 595-NE555DR	Texas Instruments	Timers & Support Products Precision A 595-NE55 5D A 595-NE555D A 5 A 595-NE555D Learn More about Texas Instruments ti ne555 timer	Datasheet	84,246In Stock	Cut Tape HK$2.88 HK$1.97 HK$1.77 HK$1.51 Reel HK$1.18 View HK$1.39 HK$1.32 HK$1.26 HK$1.14 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Timers & Support Products Precision A 595-NE55 5PSRG4 A 595-NE555P A 595-NE555PSRG4 NE555PSR Texas Instruments 1: HK$3.45 7,288In Stock	Mfr. Part No. NE555PSR Mouser Part No 595-NE555PSR	Texas Instruments	Timers & Support Products Precision A 595-NE55 5PSRG4 A 595-NE555P A 595-NE555PSRG4 Learn More about Texas Instruments ti ne555 timer	Datasheet	7,288In Stock	Cut Tape HK$3.45 HK$3.38 HK$3.14 HK$3.09 Reel HK$3.09 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Timers & Support Products ANA TIMING CIRCUIT MC1455BDR2G onsemi 1: HK$3.45 11,720In Stock 7,500Expected 16/11/2026	Mfr. Part No. MC1455BDR2G Mouser Part No 863-MC1455BDR2G	onsemi	Timers & Support Products ANA TIMING CIRCUIT	Datasheet	11,720In Stock 7,500Expected 16/11/2026	Cut Tape HK$3.45 HK$2.43 HK$2.16 HK$1.87 Reel HK$1.48 View HK$1.73 HK$1.64 HK$1.57 HK$1.44 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Timers & Support Products Timer Circuit NCV1455BDR2G onsemi 1: HK$3.29 62,773In Stock	Mfr. Part No. NCV1455BDR2G Mouser Part No 863-NCV1455BDR2G	onsemi	Timers & Support Products Timer Circuit	Datasheet	62,773In Stock	Cut Tape HK$3.29 HK$2.26 HK$2.01 HK$1.73 Reel HK$1.35 View HK$1.60 HK$1.52 HK$1.46 HK$1.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Timers & Support Products TIMER LM555CMX/NOPB Texas Instruments 1: HK$9.54 5,439In Stock 42,500On Order	Mfr. Part No. LM555CMX/NOPB Mouser Part No 926-LM555CMX/NOPB	Texas Instruments	Timers & Support Products TIMER	Datasheet	5,439In Stock 42,500On Order On Order Ship Dates Mfr. No: LM555CMX/NOPB Stock: 5,439 Can Dispatch Immediately On Order: 17,500 Expected 3/5/2027 25,000 TBD Factory Lead Time: 20 Weeks	Cut Tape HK$9.54 HK$6.85 HK$6.71 HK$5.93 Reel HK$4.95 View HK$5.56 HK$5.33 HK$5.16 HK$4.83 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Timers & Support Products Prec Timers NA555P Texas Instruments 1: HK$4.11 653In Stock 2,000Expected 19/11/2026	Mfr. Part No. NA555P Mouser Part No 595-NA555P	Texas Instruments	Timers & Support Products Prec Timers	Datasheet	653In Stock 2,000Expected 19/11/2026	HK$4.11 HK$2.86 HK$2.42 HK$2.19 View HK$2.03 HK$1.93 HK$1.85 HK$1.75 HK$1.70	Min.: 1 Mult.: 1
Timers & Support Products Prec Timers ALT 595- NA555P ALT 595-NA55 ALT 595-NA555P NA555PE4 Texas Instruments 1: HK$5.43 932In Stock	Mfr. Part No. NA555PE4 Mouser Part No 595-NA555PE4	Texas Instruments	Timers & Support Products Prec Timers ALT 595- NA555P ALT 595-NA55 ALT 595-NA555P	Datasheet	932In Stock	HK$5.43 HK$3.85 HK$3.26 HK$2.92 View HK$2.70 HK$2.58 HK$2.01 HK$1.95 HK$1.94	Min.: 1 Mult.: 1
Timers & Support Products Dual Prec Timers NA556N Texas Instruments 1: HK$8.63 1,862In Stock	Mfr. Part No. NA556N Mouser Part No 595-NA556N	Texas Instruments	Timers & Support Products Dual Prec Timers	Datasheet	1,862In Stock	HK$8.63 HK$6.17 HK$5.54 HK$4.87 View HK$4.55 HK$4.36 HK$3.98 HK$3.89	Min.: 1 Mult.: 1
Timers & Support Products Precision ALT 595-NE 555P ALT 595-NE555P ALT 595-NE555P NE555PE4 Texas Instruments 1: HK$5.26 541In Stock 3,000Expected 14/1/2027	Mfr. Part No. NE555PE4 Mouser Part No 595-NE555PE4	Texas Instruments	Timers & Support Products Precision ALT 595-NE 555P ALT 595-NE555P ALT 595-NE555P Learn More about Texas Instruments ti ne555 timer	Datasheet	541In Stock 3,000Expected 14/1/2027	HK$5.26 HK$3.84 HK$3.26 HK$2.84 View HK$2.63 HK$2.51 HK$2.41 HK$2.34 HK$2.31	Min.: 1 Mult.: 1
Timers & Support Products Single Precision Tim er 8-SO A 595-NE555 A 595-NE555PSR NE555PS Texas Instruments 1: HK$11.18 475In Stock	Mfr. Part No. NE555PS Mouser Part No 595-NE555PS	Texas Instruments	Timers & Support Products Single Precision Tim er 8-SO A 595-NE555 A 595-NE555PSR	Datasheet	475In Stock	HK$11.18 HK$8.02 HK$6.61 HK$6.27 View HK$6.00 HK$5.76 HK$5.43 HK$5.28 HK$5.17	Min.: 1 Mult.: 1
Timers & Support Products Sgl Prec Timer A 595 -NE555PW A 595-NE55 A 595-NE555PW NE555PWR Texas Instruments 1: HK$2.47 5,630In Stock	Mfr. Part No. NE555PWR Mouser Part No 595-NE555PWR	Texas Instruments	Timers & Support Products Sgl Prec Timer A 595 -NE555PW A 595-NE55 A 595-NE555PW Learn More about Texas Instruments ti ne555 timer	Datasheet	5,630In Stock	Cut Tape HK$2.47 HK$1.68 HK$1.49 HK$1.27 Reel HK$1.00 View HK$1.18 HK$1.12 HK$1.07 HK$0.97 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Timers & Support Products DUAL PRECISION TIMER NE556DBR Texas Instruments 1: HK$5.43 4,949In Stock	Mfr. Part No. NE556DBR Mouser Part No 595-NE556DBR	Texas Instruments	Timers & Support Products DUAL PRECISION TIMER	Datasheet	4,949In Stock	Cut Tape HK$5.43 HK$3.84 HK$3.44 HK$3.00 Reel HK$2.44 View HK$2.79 HK$2.73 HK$2.62 HK$2.37 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Timers & Support Products DUAL PRECISION TIMER A 595-NE556D A 595- A 595-NE556D NE556DR Texas Instruments 1: HK$3.62 4,800In Stock 12,500Expected 19/11/2026	Mfr. Part No. NE556DR Mouser Part No 595-NE556DR	Texas Instruments	Timers & Support Products DUAL PRECISION TIMER A 595-NE556D A 595- A 595-NE556D	Datasheet	4,800In Stock 12,500Expected 19/11/2026	Cut Tape HK$3.62 HK$2.49 HK$2.22 HK$1.92 Reel HK$1.57 View HK$1.77 HK$1.69 HK$1.61 HK$1.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Timers & Support Products Precision SA555P Texas Instruments 1: HK$3.78 3,187In Stock	Mfr. Part No. SA555P Mouser Part No 595-SA555P	Texas Instruments	Timers & Support Products Precision	Datasheet	3,187In Stock	HK$3.78 HK$2.66 HK$2.23 HK$2.04 View HK$1.88 HK$1.79 HK$1.72 HK$1.64 HK$1.59	Min.: 1 Mult.: 1

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