Description

NE556DR: Standard Timer Dual 14-Pin SOIC T/R

Package: SOIC-14

Mfr. Part#: NE556DR

Mfr.:TI

Datasheet: (e-mail or chat us for PDF file)

ROHS Status: 

Quality: 100% Original

Warranty: 180 days
 

These devices provide two independent timing circuits of the NA555, NE555, SA555, or SE555 type in each package. These circuits 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).

Key Features

• Two Precision Timing Circuits Per Package
• Astable or Monostable Operation
• TTL-Compatible Output Can Sink or Source up to 150 mA
• Active Pullup or Pulldown
• Designed to Be Interchangeable With Signetics NE556, SA556, and SE556

Company Product Line

 

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