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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Frequency Supply Voltage Min Supply Voltage Max Digital IC Case No. of Pins Operating Temperature Min Operating Temperature Max Product Range
 
 
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LM555CN/NOPB
LM555CN/NOPB - 555 Timer, Oscillator & Pulse Generator IC, TTL Compatible, Astable, Monostable, 4.5V to 16V, DIP-8

SC19360

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...

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10MHz 4.5V 16V DIP 8Pins 0°C 70°C 555 timer
DS12887+
DS12887+ - TRD to Digital Converter, 4.5V to 5.5V, DIP 24

SC19144

TRD to Digital Converter, 4.5V to 5.5V, DIP 24

MAXIM INTEGRATED / 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...

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- 4.5V 5.5V - 24Pins 0°C 70°C -
CD4541BE
CD4541BE - CMOS Programmable Timer High Voltage Types, 3V to 18V, DIP-14, 6MHz

SC19314

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...

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6MHz 3V 18V DIP 14Pins -55°C 125°C CD4000 LOGIC
NE555D
NE555D - Precision 555 Timer IC, Timing Microseconds to Hours, TTL, Astable, Monostable, 4.5 V to 16 V, SOIC-8

SC19361

Precision 555 Timer IC, Timing Microseconds to Hours, TTL, Astable, Monostable, 4.5 V to 16 V, SOIC-8

TEXAS INSTRUMENTS

The NE555D 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 mod...

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- - - - - - - -
DS1307+
DS1307+ - 64 x 8, Serial, I2C Real Time Clock (RTC) , 4.5V to 5.5V, DIP-8

SC19141

64 x 8, Serial, I2C Real Time Clock (RTC) , 4.5V to 5.5V, DIP-8

MAXIM INTEGRATED / ANALOG DEVICES

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TLC555CP
TLC555CP - CMOS Low Power 555 Timer, DIP8, 2.1MHz

SC16591

CMOS Low Power 555 Timer, DIP8, 2.1MHz

TEXAS INSTRUMENTS

The TLC555CP 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 ti...

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2.1MHz 2V 15V DIP 8Pins 0°C 70°C 555
TLC556CN
TLC556CN - Timer CMOS, DIP14, 556

SC16479

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 small...

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2.1MHz 2V 15V DIP 14Pins 0°C 70°C -
114100001
114100001 - Real Time Clock (RTC) Module for Raspberry Pi

SC14950

Real Time Clock (RTC) Module for Raspberry Pi

SEEED STUDIO

A real time clock module designed for the Raspberry Pi that provides continuous, accurate time keeping with battery backup. The board has been set with five additional pins allowing for convenient debugging. • RTC module that connects through the I2C bus •...

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- - 5V - 5Pins 0°C 70°C -
NE555P
NE555P - 555 Timer, Single Precision, DIP8

SC16443

555 Timer, Single Precision, DIP8

TEXAS INSTRUMENTS

The NE555P are 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...

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500kHz 4.5V 16V DIP 8Pins 0°C 70°C xx555 Precision Timers
RPI-RTC-TC
RPI-RTC-TC - Real Time Clock (RTC) & Temperature Sensor Module for Raspberry Pi

SC13025

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...

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- 3V 5V - 12Pins - - 4D Raspberry Pi RTC
DS1302+
DS1302+ - Trickle Charge Real Time Clock (RTC), 1302, DIP8

SC08158

Trickle Charge Real Time Clock (RTC), 1302, DIP8

MAXIM INTEGRATED / 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...

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- 2V 5.5V - 8Pins 0°C 70°C -
ICM7555IBAZ
ICM7555IBAZ - Timer CMOS, SMD, 7555 (555), SOIC8

SC08628

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 ...

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1MHz 2V 18V SOIC 8Pins -25°C 85°C -
M48T02-150PC1
M48T02-150PC1 - SRAM Timekeeper 16K, 48T02, DIP24

SC09500

SRAM Timekeeper 16K, 48T02, DIP24

STMICROELECTRONICS

The M48T02-150PC1 is a 16kb Non-volatile Static RAM and Real-time Clock which is pin and functional compatible with the DS1642. The M48T02 button cell has sufficient capacity and storage life to maintain data and clock functionality for an accumulated time...

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- 4.75V 5.5V - 24Pins 0°C 70°C -
ICM7556IPDZ
ICM7556IPDZ - Timer Dual CMOS, 7556, DIP14

SC08630

Timer Dual CMOS, 7556, DIP14

INTERSIL

The ICM7556IPDZ is a CMOS RC Timer provides significantly improved performance over the standard SE/NE555/6 and 355 timers, while at the same time being direct replacements for those devices in most applications. Improved parameters include low supply curr...

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1MHz 2V 18V DIP 14Pins -25°C 85°C -
M48T08-100PC1
M48T08-100PC1 - SRAM Timekeeper 64K, 48T08, DIP28

SC09501

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...

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- 4.75V 5.5V - 28Pins 0°C 70°C -
M48T02-70PC1
M48T02-70PC1 - NVRAM, 10 Year Battery 16K, 48T02

SC09499

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...

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- 4.75V 5.5V - 24Pins 0°C 70°C -
M41T11M6E
M41T11M6E - NVRAM/RTCC I512Bitx8, 41T11, SOIC8

SC09507

NVRAM/RTCC I512Bitx8, 41T11, SOIC8

STMICROELECTRONICS

• Supply Voltage Min : 2V • Supply Voltage Max : 5.5V • No. of Pins : 8Pins • Operating Temperature Min : -40°C • Operating Temperature Max : 85°C

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- 2V 5.5V - 8Pins -40°C 85°C -
M4T28-BR12SH1
M4T28-BR12SH1 - Timekeeper Snaphat

SC09498

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...

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- - - SMD 4Pins 0°C 70°C M4Txx-BR12SH SNAPHAT
ICM7555IPAZ
ICM7555IPAZ - Timer CMOS, 7555 (555), DIP8

SC08629

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, ...

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1MHz 2V 18V DIP 8Pins -25°C 85°C -
ICM7555CBAZ
ICM7555CBAZ - Timer, General Purpose

SC10469

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...

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1MHz 2V 18V SOIC 8Pins 0°C 70°C -
M48T18-100PC1
M48T18-100PC1 - SRAM Timekeeper 64K, 48T18, DIP28

SC09505

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, ...

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- 4.5V 5.5V - 28Pins 0°C 70°C -
RPI-RTC
RPI-RTC - Real Time Clock (RTC) Module for Raspberry Pi

SC13024

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...

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- 3V 5V - 12Pins - - Raspberry Pi
CD4046BE
CD4046BE - CMOS Micropower Phase Locked Loop, 2.4MHz, 3V to 18V, DIP 16

SC16572

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....

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2.4MHz 3V 18V - 16Pins -55°C 125°C CD4000 LOGIC
TLC551CP
TLC551CP - Timer, SMD, PDIP8, 551

SC16543

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 capa...

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1.8MHz 1V 15V DIP 8Pins -55°C 125°C -
LM555CM/NOPB
LM555CM/NOPB - Timer, Oscillator & Pulse Generator IC, TTL Compatible, Astable, Monostable, 4.5 V to 16 V, SOIC-8

SC16146

Timer, Oscillator & Pulse Generator IC, TTL Compatible, Astable, Monostable, 4.5 V to 16 V, SOIC-8

TEXAS INSTRUMENTS

The LM555CM/NOPB is a Highly Stable 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 external r...

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- 4.5V 16V NSOIC 8Pins 0°C 70°C -