SN74LS194AN
| Parameters | |
|---|---|
| Series | 74LS |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 16-DIP (0.300", 7.62mm) |
| Mfr | Texas Instruments |
| Mounting Type | Through Hole |
| Operating Temperature | 0°C ~ 70°C |
| Output Type | Push-Pull |
| Number of Elements | 1 |
| Supplier Device Package | 16-PDIP |
| Number of Bits per Element | 4 |
| Function | Universal |
| Voltage - Supply | 4.75V ~ 5.25V |
| Logic Type | Register, Bidirectional |
| Package | Tube |
| Product Status | Active |
| Base Product Number | 74LS194 |
| REACH Status | REACH Unaffected |
| Standard Package | 25 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
SN74LS194AN 4-bit bidirectional universal shift register
The SN74LS194AN from Texas Instruments is a classic, high-performance 4-bit bidirectional universal shift register from the 74LS (Low-Power Schottky) TTL logic family, renowned for its versatility in data handling and manipulation. This integrated circuit features four parallel data inputs and outputs, along with two mode control inputs that select from four distinct operations: parallel load, shift right, shift left, and hold. It includes separate serial inputs for right-shift and left-shift data entry, a direct overriding clear input, and a clock input for synchronous operation, enabling complex sequential logic functions.
Operating from a standard 5V supply, it offers the familiar TTL logic levels with typical propagation delays under 30ns. Housed in a 16-pin PDIP package, the device provides robust drive capability, making it suitable for interfacing with a wide array of digital systems, microprocessors, and other logic families. It is designed for reliable performance in a wide temperature range, serving as a foundational component for digital circuits requiring data storage, transfer, and transformation.
Alternative Shift Register Chips
● onsemi DM74LS194AN: A direct functional and pin-compatible equivalent from the same 74LS family, offering identical bidirectional universal shift register functionality for designs requiring a second source.
● Nexperia 74HC194D,653: A high-speed CMOS (HC) 4-bit bidirectional universal shift register operating from 2V to 6V, providing lower power consumption and compatibility with both CMOS and TTL levels while maintaining similar logic functions.
● Texas Instruments SN74HC194N: A member of the 74HC family, this device offers the same universal shift register functionality as the LS version but with the benefits of CMOS technology, including higher noise immunity and wider supply voltage range.
● STMicroelectronics 74HCT194N: A 4-bit bidirectional universal shift register from the HCT series, featuring TTL-compatible input thresholds for easy interfacing with TTL systems while offering the low power consumption of CMOS technology.
