Description

Manufacturer:TEXAS INSTRUMENTS
Manufacturer Part No:NE556D

Product Overview

The NE556D is a dual Precision Timer can be operated in the astable or the monostable mode with external resistor-capacitor (RC) timing control. The basic timing provided by the RC time constant can be controlled actively by modulating the bias of the control-voltage input. The threshold (THRES) and trigger (TRIG) levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by using the control voltage (CONT) terminal. When the trigger input falls below 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 the discharge (DISCH) terminal and ground (GND).
  • Astable or monostable operation
  • TTL-compatible output can sink or source up to 150mA
  • Active pull-up or pull-down
  • Green product and no Sb/Br

Applications

Communications & Networking, Computers & Computer Peripherals, Consumer Electronics, Industrial, Automotive

Product Information

:
500kHz
:
4.5V
:
16V
:
SOIC
:
14Pins
:
0°C
:
70°C
:
Each
:
:
MSL 1 – Unlimited

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

X