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NE556D

Precision Timer IC, Timing Microseconds to Hours, TTL, Astable, Monostable, 4.5 V to 16 V, SOIC-14

NE556D - Precision Timer IC, Timing Microseconds to Hours, TTL, Astable, Monostable, 4.5 V to 16 V, SOIC-14

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
NE556D
Order Code:
3121195
Product Range
NE556

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

Industrial, Automation & Process Control, Clock & Timing

Product Information

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:
500kHz

:
4.5V

:
16V

:
SOIC

:
14Pins

:
0°C

:
70°C

:
NE556

:
MSL 1 - Unlimited
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