Packaging information
| Package | Pins PDIP (N) | 16 |
| Operating temperature range (°C) 0 to 70 |
| Package qty | Carrier 25 | TUBE |
Features for the SN74LS253
- Three-State Version of SN54/74LS153, SN54/74S153
- Schottky-Diode-Clamped Transistors
- Permits Multiplexing from N Lines to 1 Line
- Performs Parallel-to Serial Conversion
- Fully Compatible with Most TTL Circuits
- Low Power Dissipation
- 'LS253 … 35 mW Typical
- 'S253 … 225 mW Typical
Description for the SN74LS253
Each of these Schottky-clamped data selectors/multiplexers contains inverters and drivers to supply fully complementary, on-chip, binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two four-line sections.
The three-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state) the low-impedance of the single enabled output will drive the bus line to a high or low logic level.