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xx555 Single Precision Timers

Texas Instruments offers the xx555 single precision timers operating for supplies of 5 V to 15 V

Image of Texas Instruments' xx555 Single Precision TimersTexas Instruments' NE555 are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or 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 frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.

The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.

The output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of 5 V to 15 V. With a 5 V supply, output levels are compatible with TTL inputs.

Features
  • Timing from microseconds to hours
  • Astable or monostable operation
  • TTL-compatible output can sink or source
    • Up to 200 mA
Applications
  • Fingerprint biometrics
  • Iris biometrics
  • RFID reader
  • Adjustable duty cycle
  • On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.

NA555 Single Precision Timers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC OSC SGL TIMER 100KHZ 8-SOICNA555DRIC OSC SGL TIMER 100KHZ 8-SOIC6808 - ImmediateView Details
IC OSC SINGLE TIMER 100KHZ 8-DIPNA555PIC OSC SINGLE TIMER 100KHZ 8-DIP1290 - Immediate
10000 - Factory Stock
View Details
IC OSC SGL TIMER 100KHZ 8-SOICNA555DIC OSC SGL TIMER 100KHZ 8-SOIC2989 - Immediate
9975 - Factory Stock
View Details

NE555 Single Precision Timers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC OSC SGL TIMER 100KHZ 8TSSOPNE555PWIC OSC SGL TIMER 100KHZ 8TSSOP367 - Immediate
9900 - Factory Stock
View Details
IC OSC SGL TIMER 100KHZ 8-SOICNE555DIC OSC SGL TIMER 100KHZ 8-SOIC6787 - Immediate
9975 - Factory Stock
View Details
IC OSC SGL TIMER 100KHZ 8TSSOPNE555PWRIC OSC SGL TIMER 100KHZ 8TSSOP11927 - ImmediateView Details
IC OSC SGL TIMER 100KHZ 8-SOICNE555DRG4IC OSC SGL TIMER 100KHZ 8-SOIC282 - Immediate
10001 - Factory Stock
View Details
IC OSC SGL TIMER 100KHZ 8-SOICNE555DRIC OSC SGL TIMER 100KHZ 8-SOIC19172 - ImmediateView Details
IC OSC SINGLE TIMER 100KHZ 8SONE555PSRIC OSC SINGLE TIMER 100KHZ 8SO2344 - Immediate
1925 - Factory Stock
View Details

SA555 Single Precision Timers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC OSC SGL TIMER 100KHZ 8-SOICSA555DRIC OSC SGL TIMER 100KHZ 8-SOIC8170 - ImmediateView Details
IC OSC SGL TIMER 100KHZ 8-SOICSA555DIC OSC SGL TIMER 100KHZ 8-SOIC1967 - Immediate
9975 - Factory Stock
View Details
IC OSC SINGLE TIMER 100KHZ 8-DIPSA555PIC OSC SINGLE TIMER 100KHZ 8-DIP387 - ImmediateView Details

SE555 Single Precision Timers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC OSC SGL TIMER 100KHZ 8-SOICSE555DG4IC OSC SGL TIMER 100KHZ 8-SOIC2153 - Immediate
9975 - Factory Stock
View Details
IC OSC SGL TIMER 100KHZ 8-SOICSE555DRIC OSC SGL TIMER 100KHZ 8-SOIC10001 - Factory StockView Details
IC OSC SGL TIMER 100KHZ 8SOICSE555DRG4IC OSC SGL TIMER 100KHZ 8SOIC729 - Immediate
9875 - Factory Stock
View Details
IC OSC SGL TIMER 100KHZ 8-SOICSE555DIC OSC SGL TIMER 100KHZ 8-SOIC3083 - Immediate
7125 - Factory Stock
View Details
IC OSC SINGLE TIMER 100KHZ 8-DIPSE555PIC OSC SINGLE TIMER 100KHZ 8-DIP0View Details
Published: 2017-08-03