Clocks, Timing & Frequency Management

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Clocks, Timing & Frequency Management

Discover our range of clocks, timing and frequency management ICs from trusted manufacturers. Whether you require a real-time clock (RTC) IC, or any of our timers, oscillators and pulse generators, you'll find it here. Shop RTC ICs today!

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Manufacturer Part No	Order Code	Description / Manufacturer	Price For	Price Ex. VAT (Inc. VAT)	Quantity	Supply Voltage Min
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LM555CN/NOPB	SC19360 + RoHS	555 Timer, Oscillator & Pulse Generator IC, TTL Compatible, Astable, Monostable, 4.5V to 16V, DIP-8 TEXAS INSTRUMENTS The LM555CN/NOPB is a highly stable 555 Timer for generating accurate time delays and oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one extern... You previously purchased this product. View in Order History	Each	1+ £1.36 (£1.63) 10+ £1.02 (£1.22)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.5V
DS12887+	SC19144 Data Sheet + RoHS	TRD to Digital Converter, 4.5V to 5.5V, DIP 24 ANALOG DEVICES The DS12887+ is a real time clock in 24 pin DIP package. This device provides real time clock/calendar, one time of day alarm, three maskable interrupts with common interrupt output, programmable square wave and 114bytes of battery backed static RAM. The D... You previously purchased this product. View in Order History	Each	1+ £13.23 (£15.88) 10+ £12.95 (£15.54)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.5V
CD4541BE	SC19314 + RoHS	CMOS Programmable Timer High Voltage Types, 3V to 18V, DIP-14, 6MHz TEXAS INSTRUMENTS The CD4541BE is a high voltage type (20V rating) CMOS programmable timer in 14 pin DIP package. This programmable timer consists of 16 stage binary counter, an oscillator that is controlled by external RC components (2 resistors and capacitor), an automati... You previously purchased this product. View in Order History	Each	1+ £0.52 (£0.62) 10+ £0.46 (£0.55)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	3V
DS1307+	SC19141 Data Sheet + RoHS	64 x 8, Serial, I2C Real Time Clock (RTC) , 4.5V to 5.5V, DIP-8 ANALOG DEVICES The DS1307+ is a 64 x 8, serial, I2C real-time clock (RTC) in 8 pin PDIP package. The serial RTC is a low power, full binary-coded decimal (BCD) clock/calendar plus 56bytes of NV SRAM. Address and data are transferred serially through an I2C, bidirectional... You previously purchased this product. View in Order History	Each	1+ £4.70 (£5.64) 10+ £4.22 (£5.06)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.5V
TLC556CN	SC16479 + RoHS	Timer CMOS, DIP14, 556 TEXAS INSTRUMENTS The TLC556CN is a monolithic Timing Circuit fabricated using the TI LinCMOS™ process, which provides full compatibility with CMOS, TTL and MOS logic and operates at frequencies up to 2MHz. Accurate time delays and oscillations are possible with smaller, le... You previously purchased this product. View in Order History	Each	1+ £1.75 (£2.10) 10+ £1.50 (£1.80)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2V

NE555P	SC16443 + RoHS	555 Timer, Single Precision, DIP8 TEXAS INSTRUMENTS NE555P is a single precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In a stable mode... You previously purchased this product. View in Order History	Each	1+ £0.28 (£0.34) 10+ £0.22 (£0.26)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.5V

RPI-RTC-TC	SC13025 + RoHS	Real Time Clock (RTC) & Temperature Sensor Module for Raspberry Pi 4D A real time clock module and temperature sensor for the Raspberry Pi computer. This board fits directly on the GPIO pins on the Raspberry Pi and provides real time date, time and temperature infomation even when the Pi is powered down. • Low profile design... You previously purchased this product. View in Order History	Each	1+ £10.00 (£12.00) 10+ £9.49 (£11.39)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	3V

DS1302+	SC08158 Data Sheet + RoHS	Trickle Charge Real Time Clock (RTC), 1302, DIP8 ANALOG DEVICES The DS1302+ is a trickle-charge Timekeeping Chip contains a real-time clock/calendar and 31bytes of static RAM. It communicates with a microprocessor via a simple serial interface. The real-time clock/calendar provides seconds, minutes, hours, day, date, m... You previously purchased this product. View in Order History	Each	1+ £5.62 (£6.74) 10+ £5.05 (£6.06)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2V

ICM7555IBAZ	SC08628 Data Sheet + RoHS	Timer CMOS, SMD, 7555 (555), SOIC8 INTERSIL The ICM7555IBAZ is a CMOS RC general purpose timer in 8 pin SOIC package. It provides significantly improved performance over standard SE/NE 555/6 and 355 timers while at same time being direct replacements for those devices in most applications. Improved ... You previously purchased this product. View in Order History	Each	1+ £0.72 (£0.86) 10+ £0.53 (£0.64) 100+ £0.39 (£0.47)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2V

M48T02-70PC1	SC09499 Data Sheet + RoHS	NVRAM, 10 Year Battery 16K, 48T02 STMICROELECTRONICS The M48T02-70PC1 is a TIMEKEEPER® RAM 2Kb x 8 non-volatile static RAM and Real-time Clock IC which is pin and functional compatible with the DS1642. The button cell has sufficient capacity and storage life to maintain data and clock functionality for an ac... You previously purchased this product. View in Order History	Each	1+ £14.86 (£17.83) 10+ £14.70 (£17.64)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.75V

M4T28-BR12SH1	SC09498 Data Sheet + RoHS	Timekeeper Snaphat STMICROELECTRONICS The M4T28-BR12SH1 SNAPHAT top is a detachable lithium power source. The SNAPHAT top contains both the battery and crystal and is designed to be snapped on after the SOIC is surface mounted on the PC board. Thus the two piece solution prevents the battery a... You previously purchased this product. View in Order History	Each	1+ £6.11 (£7.33) 10+ £5.89 (£7.07)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-

ICM7555IPAZ	SC08629 Data Sheet + RoHS	Timer CMOS, 7555 (555), DIP8 INTERSIL The ICM7555IPAZ is a CMOS RC timer providing significantly improved performance over the standard SE/NE555/6 and 355 timers, while at the same time being a direct replacement for those devices in most applications. For a stable operation as an oscillator, ... You previously purchased this product. View in Order History	Each	1+ £0.75 (£0.90) 10+ £0.58 (£0.70) 100+ £0.37 (£0.44) 250+ £0.36 (£0.43)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2V

ICM7555CBAZ	SC10469 Data Sheet + RoHS	Timer, General Purpose INTERSIL The ICM7555CBAZ is a CMOS RC Timer providing significantly improved performance over the standard SE/NE 555/6 and 355 timers, while at the same time being direct replacements for those devices in most applications. Improved parameters include low supply cu... You previously purchased this product. View in Order History	Each	1+ £0.62 (£0.74) 10+ £0.52 (£0.62) 100+ £0.39 (£0.47)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2V

M48T18-100PC1	SC09505 Data Sheet + RoHS	SRAM Timekeeper 64K, 48T18, DIP28 STMICROELECTRONICS The M48T18-100PC1 is a TIMEKEEPER® Non-volatile Static RAM and Real-time Clock which is pin and functional compatible with the DS1642. This is a non-volatile pin and function equivalent to any JEDEC standard 8K x 8 SRAM. It also easily fits into many ROM, ... You previously purchased this product. View in Order History	Each	1+ £16.79 (£20.15) 10+ £16.37 (£19.64)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.5V

M48T08-100PC1	SC09501 Data Sheet + RoHS	SRAM Timekeeper 64K, 48T08, DIP28 STMICROELECTRONICS The M48T08-100PC1 is a 5V, 64Kbit (8Kb x 8) TIMEKEEPER non volatile static RAM and real time clock in 28 pin DIP package. This real time clock is pin and function compatible with DS1643. It provides highly integrated battery backed memory and real time clo... You previously purchased this product. View in Order History	Each	1+ £19.95 (£23.94) 10+ £17.29 (£20.75)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.75V

RPI-RTC	SC13024 + RoHS	Real Time Clock (RTC) Module for Raspberry Pi 4D A real time clock module for the Raspberry Pi computer. This board fits directly on the GPIO pins on the Raspberry Pi and provides real time date and time infomation even when the Pi is powered down. • Low profile design; compatible with low profile heat s... You previously purchased this product. View in Order History	Each	1+ £7.68 (£9.22) 10+ £7.35 (£8.82)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	3V

CD4046BE	SC16572 + RoHS	CMOS Micropower Phase Locked Loop, 2.4MHz, 3V to 18V, DIP 16 TEXAS INSTRUMENTS The CD4046BE is a CMOS micropower phase locked loop (PLL) in 16 pin DIP package. It consists of low power, linear voltage controlled oscillator (VCO) and two different phase comparators having common signal input amplifier and common comparator input. A 5.... You previously purchased this product. View in Order History	Each	1+ £0.59 (£0.71) 50+ £0.57 (£0.68)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	3V

SA555P	SC16298 + RoHS	Timer, Oscillator and Pulse Generator IC, 500 kHz, Bipolar, Astable, Monostable, 4.5V to 16V, DIP-8 TEXAS INSTRUMENTS The SA555P is a Precision Timer capable of producing accurate time delay or oscillation. In the mono-stable mode of operation the timed interval is controlled by a single external resistor and capacitor network. In the a-stable mode of operation the freque... You previously purchased this product. View in Order History	Each	1+ £0.45 (£0.54) 50+ £0.40 (£0.48)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.5V

TLC556IN	SC16309 + RoHS	Timer, Oscillator and Pulse Generator IC, Dual LinCMOS, 2.1MHz, Astable, 3V to 18V, DIP-14 TEXAS INSTRUMENTS The TLC556IN is a monolithic Timing Circuit fabricated using the TI LinCMOS™ process, which provides full compatibility with CMOS, TTL and MOS logic and operates at frequencies up to 2MHz. Accurate time delays and oscillations are possible with smaller, le... You previously purchased this product. View in Order History	Each	1+ £1.51 (£1.81) 25+ £1.35 (£1.62)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2V

TLC555IP	SC16522 + RoHS	Timer, 555, PDIP8 TEXAS INSTRUMENTS The TLC555IP is a Low Power Timer is fully compatible with CMOS, TTL and MOS logic and operates at frequencies up to 2MHz. Because of its high input impedance, this device uses smaller timing capacitors than those used by the NE555. As a result, more accur... You previously purchased this product. View in Order History	Each	1+ £0.66 (£0.79) 10+ £0.62 (£0.74)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	3V

TLC555ID	SC16624 + RoHS	Timer, CMOS, 8 SOIC TEXAS INSTRUMENTS The TLC555ID is a Monolithic Timing Circuit fabricated using the TI LinCMOS™ process. The timer is fully compatible with CMOS, TTL and MOS logic and operates at frequencies up to 2MHz. Because of its high input impedance, this device uses smaller timing ca... You previously purchased this product. View in Order History	Each	1+ £1.36 (£1.63) 50+ £1.26 (£1.51)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2V

NE556N	SC16260 + RoHS	Dual Precision Timer, 4.5V to 16V, 14 Pin DIP, 500kHz TEXAS INSTRUMENTS The NE556N from Texas Instruments is a device that provides two independent timing circuits of the NE556N type in each package. These circuits can be operated in the astable or the monostable mode with external resistor-capacitor (RC) timing control. The b... You previously purchased this product. View in Order History	Each	5+ £0.67 (£0.80) 50+ £0.65 (£0.78)	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	4.5V

NE555DR	SC16163 + RoHS	Precision Timer IC, Timing Microseconds to Hours, TTL, Astable, Monostable, 4.5V to 16V, SOIC-8 TEXAS INSTRUMENTS NE555DR is a precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the a stable mode o... You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ £0.40 (£0.48) 10+ £0.30 (£0.36)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.5V

TLC551CP	SC16543 + RoHS	Timer, SMD, PDIP8, 551 TEXAS INSTRUMENTS The TLC551CP is a monolithic Timing Circuit fabricated using the TI LinCMOS™ process. The timer is fully compatible with CMOS, TTL and MOS logic and operates at frequencies up to 2MHz. Compared to the NE555 timer, this device uses smaller timing capacitors... You previously purchased this product. View in Order History	Each	1+ £2.07 (£2.48) 10+ £1.54 (£1.85)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1V

PCF8523T/1,118	SC19239 Data Sheet + RoHS	Real Time IC Clock (RTC) and Calendar, I2C, 1.2V to 5.5V, SOIC-8 NXP PCF8523T/1,118 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. Data is transferred serially via the I2C-bus with a maximum data rate of 1000 kbit/s. Alarm and timer functions are available with the possibility to generate ... You previously purchased this product. View in Order History	Each (Supplied on Cut Tape)	1+ £1.26 (£1.51) 10+ £1.14 (£1.37) 100+ £0.92 (£1.10)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1.2V