STMicroelectronics M74HC590B1R 8-bit Binary Counter with Output Register

The M74HC590B1R is a high-speed CMOS 8-bit binary counter with output registers designed by STMicroelectronics. This integrated circuit is engineered to interface with most 8-bit microprocessors and is widely used in digital systems where counting and binary-to-parallel conversion is required. The device is part of the HC family, signifying the use of silicon-gate CMOS technology to achieve operating speeds similar to LSTTL with the low power consumption of standard CMOS integrated circuits.

Featuring an 8-bit binary counter and an output register, the M74HC590B1R provides the functionality of two separate components in a single, compact package. The binary counter advances on the rising edge of the clock signal, which can be derived from an external source. The counter can be cleared by a high level on the reset line, allowing for rapid initialization. The output register captures the value of the counter on the positive transition of the register clock input, and holds this data constant, enabling stable parallel outputs.

The device offers a fully synchronous operation for both the counting and register stages, ensuring precise timing and control. Additionally, the M74HC590B1R supports cascading multiple counters by enabling the ripple carry output (RCO) when the counter reaches its maximum count. This feature is particularly useful for applications requiring extended counting ranges.

STMicroelectronics has packaged the M74HC590B1R in a 16-pin DIP (Dual In-line Package) configuration, making it suitable for through-hole mounting on printed circuit boards. The robust design ensures that the device can operate over a broad voltage range from 2V to 6V, providing versatility for different logic level requirements. With its high noise immunity and low power consumption, the M74HC590B1R is an ideal choice for a wide range of applications in computing, instrumentation, and digital systems that require reliable counting and data transfer capabilities.

As with all STMicroelectronics products, the M74HC590B1R is manufactured to the highest quality standards, ensuring reliable performance and longevity in the field. For detailed specifications, timing diagrams, and application notes, designers are encouraged to consult the official datasheet available on the STMicroelectronics website.