74HCT257DB SCHEDA,CIRCUITO,LA FUNZIONE

74HCT257DB Datasheet PDF

• Philips Semiconductors 74HCT251
  8-input multiplexer; 3-state
• PHILIPS[Philips Semiconductors] 74HCT251D
  8-input multiplexer; 3-state
• 74HCT251D-T
  8-Input Digital Multiplexer
• PHILIPS[Philips Semiconductors] 74HCT251DB
  8-input multiplexer; 3-state
• PHILIPS[Philips Semiconductors] 74HCT251N
  8-input multiplexer; 3-state
• PHILIPS[Philips Semiconductors] 74HCT251PW
  8-input multiplexer; 3-state
• Philips 74HCT251U
  8-input multiplexer; 3-state
• Philips Semiconductors 74HCT253
  Dual 4-input multiplexer; 3-state
• PHILIPS[Philips Semiconductors] 74HCT253D
  Dual 4-input multiplexer; 3-state
• 74HCT253D-T
  4-Input Digital Multiplexer
• PHILIPS[Philips Semiconductors] 74HCT253DB
  Dual 4-input multiplexer; 3-state
• PHILIPS[Philips Semiconductors] 74HCT253N
  Dual 4-input multiplexer; 3-state
• PHILIPS[Philips Semiconductors] 74HCT253PW
  Dual 4-input multiplexer; 3-state
• Philips 74HCT253U
  Dual 4-input multiplexer; 3-state
• Philips Semiconductors 74HCT257
  Quad 2-input multiplexer; 3-state(??????????????????