Timers and counters

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  • Clock Generator 8KHz to 160MHz Si5351A

      Clock Generator 8KHz to 160MHz Si5351A
    Never hunt around for another crystal again, with the Si5351A clock generator breakout from Adafruit! This chip has a precision 25MHz crystal reference and internal PLL and dividers so it can generate just about any frequency, from The Si5351A clock generator is an I2C controller clock generator. It uses the onboard precision clock to drive multiple PLL's and clock dividers using I2C instructions. By setting up the PLL and dividers you can create precise and arbitrary frequencies. There are three independent outputs, and each one can have a different frequency. Outputs are 3Vpp, either through a breadboard-friendly header or, for RF work, an optional SMA connector. We put this handy little chip onto it's own breakout board PCB, with a 3.3V LDO regulator so it can be powered from 3-5VDC. We also put level shifting circuitry on the I2C lines so you can use this chip safely with 3V or 5V logic. Dimensions: 31mm x 22mm x 2mm / 1.22" x .87" x .08" Weight: 2.5 grams
    Part.no: 41013201
    In stock: 25 
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    $10.72

  • Digital klocka

      Digital klocka
    This circuit uses IC FUJISU MB95F264 which is a new IC generation, small size, and provides memory upto 20 kilobytes. The circuit is suitable to utilize as a current time showing or apply with other application by re-programming an IC. Technical Specifications: - Power supply : 12VDC. 90mA. max. - Display in 24-hour format. - There are two display formats; Hour:Minute or Minute:Second operation. - There is a connecting point with FUJISU programmer MB2146-08-E - PCB dimensions : 2.35 x 2.94 in.
    Part.no: 21200948
    In stock: 8 
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    $22.77

  • Digital klocka & timer

      Digital klocka & timer
    This circuit is used to show the current time and on-off timer. This circuit uses IC FUJISU MB95F264 which is a new IC generation, small size, and provides memory upto 20 kilobytes. In addition, to apply with other application, you can re-program an IC. Technical Specifications: - Power supply : 12VDC. 90mA. max. - Display in 24-hour format. - There are two display formats; Hour:Minute or Minute:Second operation. - Can be set 20 programs maximum for on-off timing. - There is a connecting point with FUJISU programmer MB2146-08-E - PCB dimensions : 2.35 x 3.57 in.
    Part.no: 21200949
    In stock: 8 
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    $26.39

  • Panelräknare

      Panelräknare
    very practical for counting parts, people, scorekeeping, ... red LED read-out 2 inputs: counts up or down counting through external pulses or push buttons memory function constantly compares the current value with a preset value and activates an output for as long as both are equal or for an adjustable time debounce function for stable operation (with low counting frequencies) adjustable 'preset': 0000 to 9999 auto reset when preset value is reached when counting up example if preset= 5: 0000 > 0001 > 0002 > 0003 > 0004 > 0005 > 0000 > 0001 > 0002 > 0003 > 0004 > 0005 > 0000 > 0001 . auto 'load preset' mode when counting down example if preset = 6: 0006 > 0005 > 0004 > 0003 > 0002 > 0001 > 0000 > 0006 > 0005 > 0004 > 0003 > 0002 > 0001 > 0000 > 0006 . comes with board-to-wire connectors (20cm wire) Specifications counter input : dry contact, connecting to ground 'equal'- output: max. 100mA (@ max. 30V) 'open-collector' output max. counting speed : 400 / sec. (10 / sec. with debounce delay) max. count: 4 digits (0000 to 9999) output pulse length: 100 to 900ms or 'as long as equal' power supply: 9 to 12VDC (unregulated) power consumption: dimensions: panel module: 67 x 40.5 mm / 2.63 x 1.6" cut-out: 54 x 37 mm / 2.12 x 1.45" mounting depth: 42mm / 1.65"
    Part.no: 12000147
    In stock: 3 
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    $40.84

  • Real time clock high precision DS3234 break-out board

      Real time clock high precision DS3234 break-out board
    Here is a real time clock based on the DS3234 Real Time Clock IC. The DS3234 is a low-cost, extremely accurate SPI bus real-time clock with an integrated temperature-compensated crystal oscillator and crystal. The RTC maintains seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections of leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. The underside of the board holds a 12mm coin-cell battery holder for battery backup. Features: +-2ppm accuracy Two alarms SPI output Low power consumption Accurate calendar up to year 2100 OBS! Batteri ingår inte, se artikel
    Part.no: 41004639
    In stock: 3 
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    $24.94

  • Real Time Clock Module

      Real Time Clock Module
    This a custom designed module for the DS1307 Real Time Clock. The module comes fully assembled and pre-programmed with the current time (ok, so it's our current time - MST). The included Lithium coin cell battery (CR1225 41mAh) will run the module for a minimum of 9 years (17 years typical) without external 5V power. The DS1307 is accessed via the I2C protocol. We've written a test-bed to program the modules. This test-bed code should give you some insight on how to interface the module to any mircocontroller using our example software I2C and BCD routines. Features: * Two wire I2C interface * Hour : Minutes : Seconds AM/PM * Day Month, Date - Year * Leap year compensation * Accurate calendar up to year 2100 * Battery backup included * 1Hz output pin * 56 Bytes of Non-volatile memory available to user Dimensions: 0.75x0.75" (20x20mm)
    Part.no: 41003425
    In stock: 5 
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    $18.69

  • RTC DS3231 breakout

      RTC DS3231 breakout
    Part.no: 41015278
    In stock: 4 
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    $21.57

  • RTC module I2C mini DS1307

      RTC module I2C mini DS1307
    RTC module with battery holder for one CR2032 button cell. The module enables a microcontroller to read the current time and date with very high precision. The module can provide timing in seconds, minutes, hours, date, month and year. Extra functions include leap-year compensation, 12/24h format and a programmable square wave output. The module sense when the supply voltage drops and automatically switches over to the backup battery to keep the clock going. When powered from the backup battery, the module consumes very little current and will keep running for a very long time. The RTC communicates via I2C. Libraries for Arduino is available for download.
    Part.no: 41015737
    In stock: 62 
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    $4.70

  • Timer 1s-60h start-stop

      Timer 1s-60h start-stop
    Features wide timing range easy time setting LED animation during operation on-board START-STOP buttons non retriggerable power-on trigger is possible debounced buffered inputs avoid false triggering compact size front panel mountable Specifications adjustable delay: 1s - 60h power supply: 12VDC / 100mA NO/NC relay: 24VAC/DC 3A max. dimensions: 70 x 45 x 20mm / 2.8 x 1.8 x 0.8"
    Part.no: 12000141
    In stock: 1 
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    $27.59

  • Universal timer with USB-interface

      Universal timer with USB-interface
    Timer module with relay output and USB interface. The timer has 10 different pre-programmed modes for controlling the relay, eg. fixed intervalls, time-delay, start/stop, and more. The module can be configured from a computer via a USB port. Start and stop buttons with external buffered inputs. * Supply voltage: 12VDC (100mA) * Relay outputs: Switching (SPDT) 250VAC / 8A * Shortest time event: 100ms * Longest time event: 1000h (over 41 days) * Dimensions: 68 x 56 x 20mm
    Part.no: 41014092
    In stock: 1 
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    $44.46