Texas Instruments CD74HC93 High Speed CMOS Logic 4-Bit Binary Ripple Counter CD74HC93EE4

The CD74HC93EE4 is a high-speed CMOS 4-bit binary ripple counter designed for efficient counting applications. It can be configured to divide by 2, 8, and 16, making it versatile for various digital logic designs. The device features asynchronous reset functionality and supports a fanout of 10 LSTTL loads for standard outputs and 15 LSTTL loads for bus driver outputs, ensuring compatibility with a range of circuit configurations. Operating over a wide temperature range of -55¬8C to 125¬8C, the CD74HC93EE4 balances propagation delay and transition times, providing reliable performance in demanding environments. It operates at supply voltages between 2V and 6V for HC types, and 4.5V to 5.5V for HCT types, with high noise immunity. The device is also pin-compatible with low power Schottky TTL (LSTTL), facilitating easy integration into existing designs. However, it is important to note that state changes of the outputs do not occur simultaneously due to internal ripple delays, which may affect timing in certain applications.