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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.
Real Time Clock I C Serial Real-Time Clock DS1337+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1337+ Mouser Part No 700-DS1337	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1337 rtc Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
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 181In 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		181In Stock 360On Order	HK$8.80	Min.: 1 Mult.: 1
Timers & Support Products Precision NE555P Texas Instruments 1: HK$4.85 61,899In 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	61,899In 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 CMOS TLC555IP Texas Instruments 1: HK$11.92 3,819In Stock	Mfr. Part No. TLC555IP Mouser Part No 595-TLC555IP	Texas Instruments	Timers & Support Products CMOS	Datasheet	3,819In Stock	HK$11.92 HK$8.71 HK$7.38 HK$7.02 View HK$6.58 HK$6.31 HK$6.09 HK$5.86 HK$5.78	Min.: 1 Mult.: 1
Timers & Support Products TIMER LM555CN/NOPB Texas Instruments 1: HK$11.84 11,378In Stock	Mfr. Part No. LM555CN/NOPB Mouser Part No 926-LM555CN/NOPB	Texas Instruments	Timers & Support Products TIMER	Datasheet	11,378In 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
Real Time Clock 64 x 8, Serial, I C Real-Time Clock DS1307N+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1307N+ Mouser Part No 700-DS1307N	Analog Devices / Maxim Integrated	Real Time Clock 64 x 8, Serial, I C Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1307 Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Timers & Support Products CMOS Timer LMC555CN/NOPB Texas Instruments 1: HK$15.45 10,341In Stock	Mfr. Part No. LMC555CN/NOPB Mouser Part No 926-LMC555CN/NOPB	Texas Instruments	Timers & Support Products CMOS Timer	Datasheet	10,341In Stock	HK$15.45 HK$11.34 HK$9.95 HK$9.04 View HK$8.55 HK$8.21 HK$8.08 HK$7.67 HK$7.50	Min.: 1 Mult.: 1
Real Time Clock I2C RTCC 64B SRAM No VBAT MCP7940M-I/P Microchip Technology 1: HK$6.08 667In Stock	Mfr. Part No. MCP7940M-I/P Mouser Part No 579-MCP7940579-M-I/P	Microchip Technology	Real Time Clock I2C RTCC 64B SRAM No VBAT Learn More about Microchip Technology microchip real time clocks	Datasheet	667In Stock	HK$6.08 HK$5.59	Min.: 1 Mult.: 1
Real Time Clock I2C GP RTCC,64B SRAM MCP7940N-I/P Microchip Technology 1: HK$7.56 458In Stock	Mfr. Part No. MCP7940N-I/P Mouser Part No 579-MCP7940N-I/P	Microchip Technology	Real Time Clock I2C GP RTCC,64B SRAM Learn More about Microchip Technology microchip real time clocks	Datasheet	458In Stock	HK$7.56 HK$6.99 HK$6.68	Min.: 1 Mult.: 1
Timers & Support Products Prec Timers NA555P Texas Instruments 1: HK$4.11 654In Stock 2,000Expected 19/11/2026	Mfr. Part No. NA555P Mouser Part No 595-NA555P	Texas Instruments	Timers & Support Products Prec Timers	Datasheet	654In 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 Precision ALT 595-NE 555P ALT 595-NE555P ALT 595-NE555P NE555PE4 Texas Instruments 1: HK$5.26 541In Stock 3,000Expected 17/5/2027	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 17/5/2027	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 Precision SA555P Texas Instruments 1: HK$3.78 3,170In Stock	Mfr. Part No. SA555P Mouser Part No 595-SA555P	Texas Instruments	Timers & Support Products Precision	Datasheet	3,170In 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
Timers & Support Products CMOS TLC551CP Texas Instruments 1: HK$34.20 235In Stock	Mfr. Part No. TLC551CP Mouser Part No 595-TLC551CP	Texas Instruments	Timers & Support Products CMOS	Datasheet	235In Stock	HK$34.20 HK$26.55 HK$22.52 HK$21.29 View HK$20.22 HK$20.14 HK$19.40 HK$18.99	Min.: 1 Mult.: 1
Timers & Support Products CMOS TLC555CP Texas Instruments 1: HK$11.51 2,014In Stock 4,000Expected 15/2/2027	Mfr. Part No. TLC555CP Mouser Part No 595-TLC555CP	Texas Instruments	Timers & Support Products CMOS	Datasheet	2,014In Stock 4,000Expected 15/2/2027	HK$11.51 HK$8.30 HK$7.50 HK$6.63 View HK$6.21 HK$5.96 HK$5.70 HK$5.54 HK$5.41	Min.: 1 Mult.: 1
Real Time Clock Trickle-Charge Timekeeping Chip DS1302+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1302+ Mouser Part No 700-DS1302	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Real Time Clock 64 x 8, Serial, I C Real-Time Clock DS1307+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1307+ Mouser Part No 700-DS1307	Analog Devices / Maxim Integrated	Real Time Clock 64 x 8, Serial, I C Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1307 Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Real Time Clock Real-Time Event Recorder DS1678+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1678+ Mouser Part No 700-DS1678	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Event Recorder Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Timers & Support Products Low-Power, General-Purpose Timer ICM7555IPA+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. ICM7555IPA+ Mouser Part No 700-ICM7555IPA	Analog Devices / Maxim Integrated	Timers & Support Products Low-Power, General-Purpose Timer Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Timers & Support Products Precision SE555P Texas Instruments 1: HK$4.52 2,466In Stock 9,000Expected 22/3/2027	Mfr. Part No. SE555P Mouser Part No 595-SE555P	Texas Instruments	Timers & Support Products Precision	Datasheet	2,466In Stock 9,000Expected 22/3/2027	HK$4.52 HK$3.13 HK$2.70 HK$2.42 View HK$2.25 HK$2.15 HK$2.06 HK$1.97 HK$1.89	Min.: 1 Mult.: 1
Timers & Support Products 8-Bit Binary, Programmable, RC Timer Cou ICM7242IPA+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. ICM7242IPA+ Mouser Part No 700-ICM7242IPA	Analog Devices / Maxim Integrated	Timers & Support Products 8-Bit Binary, Programmable, RC Timer Cou Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Timers & Support Products GEN PUR CMOS TIMER 8 IND ICM7555IPAZ Renesas / Intersil 1: HK$8.71 58,515On Order	Mfr. Part No. ICM7555IPAZ Mouser Part No 968-ICM7555IPAZ	Renesas / Intersil	Timers & Support Products GEN PUR CMOS TIMER 8 IND	Datasheet	58,515On Order On Order Ship Dates Mfr. No: ICM7555IPAZ Stock: 0 On Order: 16,515 Expected 1/2/2027 20,000 Expected 15/2/2027 22,000 Expected 29/3/2027 Factory Lead Time: 26 Weeks	HK$8.71 HK$6.12 HK$5.48 HK$4.79 View HK$4.46 HK$4.26 HK$4.09 HK$3.91 HK$3.81	Min.: 1 Mult.: 1
Timers & Support Products CMOS Analog RC Timer ALD7555PAL Advanced Linear Devices 1: HK$36.83 25In Stock	Mfr. Part No. ALD7555PAL Mouser Part No 585-ALD7555PAL	Advanced Linear Devices	Timers & Support Products CMOS Analog RC Timer Learn More about Advanced Linear Devices advanced linear ald7555 ald7556	Datasheet	25In Stock	HK$36.83 HK$27.70 HK$25.48 HK$23.02 View HK$21.78 HK$21.62 HK$20.30 HK$19.89	Min.: 1 Mult.: 1
Timers & Support Products LINCMOS TIMER TLC551CPE4 Texas Instruments 600: HK$20.06 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. TLC551CPE4 Mouser Part No 595-TLC551CPE4	Texas Instruments	Timers & Support Products LINCMOS TIMER	Datasheet	Non-Stocked Lead-Time 12 Weeks	HK$20.06 HK$18.82 HK$18.41	Min.: 600 Mult.: 50

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