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74AC257

Features: · ICC and IOZ reduced by 50%· Multiplexer expansion by tying outputs together· Noninverting 3-STATE outputs· Outputs source/sink 24 mA· ACT257 has TTL-compatible inputsPinoutSpecificationsSupply Voltage (VCC)...................... −0.5V to +7.0VDC Input Diode Current (IIK)VI = W...

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SeekIC No. : 004248913 Detail

74AC257: Features: · ICC and IOZ reduced by 50%· Multiplexer expansion by tying outputs together· Noninverting 3-STATE outputs· Outputs source/sink 24 mA· ACT257 has TTL-compatible inputsPinoutSpecifications...

74AC257 Data Sheet

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Part Number:
74AC257
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/5/19

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Product Details

Description



Features:

· ICC and IOZ reduced by 50%
· Multiplexer expansion by tying outputs together
· Noninverting 3-STATE outputs
· Outputs source/sink 24 mA
· ACT257 has TTL-compatible inputs


Pinout

Connection Diagram


Specifications

Supply Voltage (VCC)...................... −0.5V to +7.0V
DC Input Diode Current (IIK)
VI = −0.5V................................................... −20 mA
VI = VCC +0.5V............................................ +20 mA
DC Input Voltage (VI) ..............−0.5V to VCC + 0.5V
DC Output Diode Current (IOK)
VO = −0.5V ..................................................−20 mA
VO = VCC +0.5V........................................... +20 mA
DC Output Voltage (VO)........... −0.5V to VCC + 0.5V
DC Output Source ort
Sink Curren (IO).......................................... ±50 mA
DC VCC or Ground Current
Per Output Pin (ICC or IGND) ......................±50 mA
Storage Temperature (TSTG) .....−65°C to +150°C
Junction Temperature (TJ)
PDIP .............................................................140°C


Description

The 74AC257 is a quad 2-input multiplexer with 3- STATE outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE) input, allowing the outputs to interface directly with bus-oriented systems.




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