DESCRIPTION

· The Nx556 and Sx556 devices integrate two independent timing circuits, similar to the NA555, NE555, SA555, or SE555 types, within a single package. These circuits function in either astable or monostable modes, utilizing external resistor-capacitor (RC) timing control. The timing is actively managed by modulating the bias of the control-voltage input. Each timer features a trigger level at approximately one-third and a threshold level at two-thirds of the supply voltage, adjustable via the control voltage pin (CONT). The reset input (RESET) can override other inputs to initiate a new timing cycle. Unused inputs should be tied to an appropriate logic level to avoid false triggering.

FEATURES

· Each package contains two precision timing circuits. · Capable of astable or monostable operation. · TTL-compatible output with the ability to sink or source up to 200mA. · Includes active pullup or pulldown functionality.

APPLICATIONS

· Suitable for precision timing ranging from microseconds to hours. · Effective in pulse-shaping circuits and missing-pulse detectors. · Utilized in pulse-width modulators and pulse-position modulators. · Ideal for sequential timers, pulse generators, and frequency dividers. · Applicable in application timers and industrial controls.