INTERSIL ICM7555CBAZ CMOS RC Timer, SOIC-8, 1MHz

The INTERSIL ICM7555CBAZ is a high-performance CMOS RC Timer designed as a direct replacement for standard SE/NE 555/6 and 355 timer ICs, offering significant improvements across key parameters. It provides precise timing control in both monostable (one-shot) and astable (oscillator) modes, making it a versatile core component for a wide range of electronic circuits.

This timer excels with its low supply current and wide operating voltage range from 2V to 18V, enhancing power efficiency and flexibility in various designs. Key performance upgrades include very low THRESHOLD, TRIGGER, and RESET currents, eliminating the need to decouple the CONTROL VOLTAGE pin for stable operation. A notable feature is the absence of supply current crowbarring during output transitions, which reduces noise and improves overall circuit reliability.

In monostable mode, the output pulse width is accurately set by a single external resistor and capacitor. For astable operation, the free-running frequency and duty cycle are precisely controlled by two external resistors and one capacitor. The device triggers and resets on falling edges, and its output buffer is capable of sourcing and sinking sufficient current to directly drive TTL loads or provide minimal offset voltages for driving CMOS loads.

Its ability to operate with higher impedance timing elements allows for the creation of exceptionally long RC time constants, enabling timing applications that range from microseconds to hours. The combination of a normal reset function, adjustable duty cycle, and high-drive-capability output makes it an exceptionally robust and flexible timing solution.

Key Features & Specifications

• Technology: CMOS construction for improved performance.
• Replacement: Direct replacement for SE/NE 555/6 and 355 timers.
• Operating Voltage: Wide range from 2V to 18V.
• Max Frequency: 1MHz.
• **Low Power: