Description

Manufacturer:TEXAS INSTRUMENTS
Manufacturer Part No:SE555D

Product Overview

The SE555D is a Precision Timer 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.
  • Timing from microseconds to hours
  • Astable or monostable operation
  • Adjustable duty cycle
  • TTL-compatible output can sink or source up to 200mA
  • Compliant to MIL-PRF-38535
  • Green product and no Sb/Br

Applications

Clock & Timing

Product Information

:
:
4.5V
:
18V
:
SOIC
:
8Pins
:
-55°C
:
125°C
:
Each
:
:
MSL 1 – Unlimited

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