STMicroelectronics M74HC163RM13TR

Summary of M74HC163RM13TR by STMicroelectronics

The M74HC163RM13TR from STMicroelectronics is a high-speed, 4-bit synchronous binary counter IC, supplied in a 16-pin SO package. Based on advanced silicon gate CMOS technology, the M74HC163RM13TR delivers efficient binary counting for a broad range of digital applications, including frequency division, digital event counting, and timing control. The device supports synchronous presetting, cascading of counters for extended bit-width, and features industry-standard pin and function compatibility with legacy 74-series 163 counters, enabling easy migration and system upgrades.

Main attributes and performance benefits of M74HC163RM13TR

Engineered for demanding digital systems, the M74HC163RM13TR achieves a maximum clock frequency of 62 MHz at 6V VCC, ensuring accurate counting in fast clock environments such as microprocessor timing subsystems and communications equipment. Its low quiescent current design (ICC max 4 μA at 25°C) contributes to reduced overall system power consumption, which is particularly valuable in battery-powered or energy-conscious applications. Noise immunity is robust, with VIH(min) and VIL(min) levels at 28% of VCC, providing the necessary resilience for operation in electrically noisy environments. Balanced output drive capability (min 4mA for both high and low states) and symmetrical propagation delays further support reliable and predictable signal timing. The ability to operate across a wide voltage range—from 2V to 6V—makes this counter versatile for integration into both legacy and advanced digital platforms.

Operational overview of M74HC163RM13TR

At its core, the M74HC163RM13TR is a synchronous, presettable 4-bit binary counter. Its design supports positive-edge clocked operation, with both LOAD and CLEAR inputs functioning at active low. Synchronous presetting is performed on the rising edge of the clock, enabling precise initialization and control of the counter state within complex digital sequences. Two cascading enable inputs (TE and PE) and a carry output streamline the construction of N-bit counters through simple daisy-chaining, eliminating the need for external logic gates. Integrated input protection circuits guard against transient voltage surges and static discharge, addressing reliability concerns in industrial and field-deployed systems.

Pinout and connection specifications for M74HC163RM13TR

The M74HC163RM13TR is housed in a standard 16-pin SO package, providing convenient surface-mount integration. The pinout supports straightforward connections for data inputs, clock, load, clear, enables, carry output, and power rails. Its logic pin arrangement is designed for compatibility with established 74-series synchronous counters, ensuring drop-in replacement capability and design flexibility. Detailed truth tables, timing charts, and IEC logic symbols are available, supporting thorough schematic development and simulation prior to prototyping.

Electrical specifications and timing information of M74HC163RM13TR

The device features stable and predictable AC characteristics under capacitive loads up to 50 pF, with propagation delays closely matched for both low-to-high and high-to-low transitions—an important attribute for clock-distributed systems and logic state synchronization. Minimum pulse widths and setup/hold times are specified for key operations (count, clear, preset, enable, cascade), with rigorous waveform diagrams provided to support timing analysis and PCB layout planning. DC specifications (voltage, current, and noise thresholds) are detailed to guide power supply selection and interface logic level matching.

Physical package details and size of M74HC163RM13TR

Available in a compact 16-SO (Small Outline) package, the M74HC163RM13TR supports high-density circuit board layouts and automated assembly. Mechanical data, including detailed dimensional drawings and footprint specifications, are provided for plastic DIP-16, SO-16, and TSSOP-16 forms, allowing the engineer to select the most suitable package for their application and manufacturing process.

Suggested environmental and usage parameters for M74HC163RM13TR

For optimal long-term performance and reliability, operating parameters are specified: the recommended supply voltage range is 2V to 6V, and absolute maximum ratings—including power dissipation limits—are clearly defined. Adhering to these recommendations ensures that functional stability and device longevity are maintained, especially in environments subject to temperature variations or power supply fluctuations.

Alternative or substitute options for M74HC163RM13TR

When considering alternatives to the M74HC163RM13TR, engineers may evaluate other counters from the 74HC163 series, or compatible CMOS synchronous binary counters from other manufacturers, all of which maintain similar pinouts and functional behavior. For legacy systems, the original 74-series 163 (TTL logic) may serve as a precedent, keeping in mind that voltage and logic-level differences may affect system interfacing. Comparative studies should assess frequency capability, power dissipation, and package compatibility to ensure seamless device replacement.

Conclusion

: Selecting the M74HC163RM13TR for modern digital designs

For design engineers and procurement teams, the M74HC163RM13TR represents a robust, high-performance solution for synchronous binary counting in digital systems. Its combination of speed, low power operation, noise immunity, and versatile packaging aligns well with the requirements of contemporary embedded systems, instrumentation, and communication devices. With comprehensive documentation and familiar interface characteristics, the M74HC163RM13TR is a compelling choice for reliable counter functionality across a broad array of electronics applications.