The 74AC163TTR is a high-speed, integrated circuit manufactured by STMicroelectronics, which is part of the 74AC series known for its advanced high-speed CMOS technology. This particular device is a synchronous presettable binary counter designed to offer exceptional counting and frequency division performance in a wide range of applications.

Featuring a 4-bit binary counter with synchronous clear, the 74AC163TTR is capable of operating at very high speeds with a typical clock frequency of up to 140 MHz. The counter is incremented on the rising edge of the clock signal when the count enable input is in the active state, providing precise control over counting sequences.

The device comes in a TSSOP (Thin Shrink Small Outline Package) form factor, specifically in a 16-lead package with a part number suffix of "TTR," indicating tape and reel packaging suitable for automated assembly processes. This package type is ideal for space-constrained applications, as it offers a reduced footprint on printed circuit boards (PCBs) while maintaining high performance and reliability.

One of the key features of the 74AC163TTR is its synchronous reset function, which allows the user to reset the counter to zero, or any other preset value, on the fly without waiting for a clock cycle. This feature is essential for applications requiring precise timing adjustments or rapid initialization.

The 74AC163TTR also provides additional functionality, such as a carry output for cascading multiple counters to create extended counting ranges. This makes it a versatile choice for complex digital systems that require multi-digit counting capabilities.

The robust design of the 74AC163TTR ensures it can operate across a wide temperature range, typically from -55°C to 125°C, making it suitable for industrial applications that may be subject to harsh environmental conditions.

Overall, the 74AC163TTR from STMicroelectronics is a reliable and efficient solution for designers looking for a high-speed, synchronous binary counter with advanced features and a compact package. Whether used in digital systems, instrumentation, or automation, this integrated circuit is engineered to meet the rigorous demands of modern electronic applications.