Texas Instruments CD4541BE CMOS Programmable Timer DIP-14

The Texas Instruments CD4541BE is a versatile, high-voltage CMOS programmable timer integrated circuit, encapsulated in a robust 14-pin DIP (Dual In-line Package). This sophisticated timer is engineered for precision and reliability in a wide array of timing applications, offering programmable control through external components.

At its core, the device features a 16-stage binary counter and an oscillator controlled by two external resistors and a capacitor, providing exceptional flexibility in setting time intervals. An integrated automatic power-on reset circuit ensures reliable startup, while the output control logic allows selection from the 8th, 10th, 13th, or 16th counter stage via time select inputs A and B. The output can be configured as either Q or Q (complement) and is available in two distinct operating modes, selectable via the MODE input.

Key Features & Specifications

• Wide Operating Range: Functions across a broad supply voltage from 3V to 18V, with a high-voltage rating of 20V.
• Flexible Clocking: Supports an oscillator frequency range from DC up to 100kHz. An external clock signal can also be applied directly to Pin 3, bypassing the internal oscillator.
• Dual Functionality: Can operate as a precise 2^N frequency divider or as a single-transition timer for pulse generation.
• Robust Output: Boasts symmetrical output characteristics with low output resistance, typically 100 ohms at a 15V supply.
• High Reliability: Fully tested for quiescent current at 20V and rated for 5V, 10V, and 15V parametric operation. It is designed for an extensive operating temperature range from -55°C to +125°C.
• Control Inputs: Features MASTER RESET and AUTO RESET inputs for counter control and timing initialisation.

Handling Note: This device is sensitive to electrostatic discharge (ESD). Always follow proper IC handling procedures to prevent damage.<br