Manufacturer Texas Instruments
Manufacturer Part Number SA555D
Description BIPOLAR TIMER SINGLE GEN PURPOSE
Stock Code W014004
Download Technical Datasheet

The SA555D 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 frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor. The threshold and trigger levels normally are 2/3rd and 1/3rd respectively of VCC. 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. 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 and ground.

  • Timing from microseconds to hours
  • Adjustable duty cycle
  • TTL-compatible output can sink or source up to 200mA
  • Green product and no Sb/Br

Number of Pins

8

REACH SVHC Compliance

No SVHC

RoHS

Compliant

Supply Voltage (DC)

16.0 V (max), 4.50 V (min)

Quiescent Current

2.00 mA

Supply Current

15.0 mA (max)

Packaging

Cut Tape (CT)

Operating Temperature

-40.0 °C to 85.0 °C

Lead-Free Status

Lead Free

Frequency

500 kHz

Lifecycle Status

Active

Mounting Style

Surface Mount

Case/Package

PDIP, SOIC