SN74LS253

DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS The LSTTL/ MSI SN54/ 74LS253 is a Dual 4-Input Multiplexer with 3-state outputs. It can select two bits of data from four sources using common select inputs. The outputs may be individually switched to a high impedance state with a HIGH on the respective Output Enable (E0) inputs, allowing the outputs to interface directly with bus oriented systems. It is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all Motorola TTL families. Schottky Process for High Speed Multifunction Capability Non-Inverting 3-State Outputs Input Clamp Diodes Limit High Speed Termination Effects CONNECTION DIAGRAM DIP (TOP VIEW) VCC E0b S0 I3b I2b I1b I0b Zb 16 15 14 13 12 11 10 9 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. 1 2 3 4 56 78 E0a S1 I3a I2a I1a I0a Za GND SN54/74LS253 DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS LOW POWER SCHOTTKY 1...