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MC74LCX257

Features: • Designed for 2.7 to 3.6V VCC Operation• 5V Tolerant - Interface Capability With 5V TTL Logic• Supports Live Insertion and Withdrawal• IOFF Specification Guarantees High Impedance When VCC = 0V• LVTTL Compatible• LVCMOS Compatible• 24mA Balanced...

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SeekIC No. : 004417074 Detail

MC74LCX257: Features: • Designed for 2.7 to 3.6V VCC Operation• 5V Tolerant - Interface Capability With 5V TTL Logic• Supports Live Insertion and Withdrawal• IOFF Specification Guarantee...

MC74LCX257 Data Sheet

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Part Number:
MC74LCX257
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: 2024/11/27

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Product Details

Description



Features:

• Designed for 2.7 to 3.6V VCC Operation
• 5V Tolerant - Interface Capability With 5V TTL Logic
• Supports Live Insertion and Withdrawal
• IOFF Specification Guarantees High Impedance When VCC = 0V
• LVTTL Compatible
• LVCMOS Compatible
• 24mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current in All Three Logic States (10mA) Substantially Reduces System Power Requirements
• Latchup Performance Exceeds 500mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V


Pinout

Connection Diagram


Specifications

Parameter Parameter Value Condition Unit
VCC DC Supply Voltage 0.5 to +7.0   V
VI DC Input Voltage 0.5 3 VI 3 +7.0   V
VO DC Output Voltage 0.5 3 VO 3 +7.0 Output in 3State V
0.5 3 VO 3 VCC + 0.5 Note 1. V
IIK DC Input Diode Current 50 VI < GND mA
IOK DC Output Diode Current 50 VO < GND mA
+50 VO > VCC mA
IO DC Output Source/Sink Current +50   mA
ICC DC Supply Current Per Supply Pin ±100   mA
IGND DC Ground Current Per Ground Pin ±100   mA
TSTG Storage Temperature Range 65 to +150   °C



Description

The MC74LCX257 is a high performance, quad 2input multiplexer with 3state outputs operating from a 2.7 to 3.6V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5V allows MC74LCX257 inputs to be safely driven from 5V devices.

Four bits of data of MC74LCX257 from two sources can be selected using the Select input. The four outputs of MC74LCX257 present the selected data in the true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the Output Enable (OE) input. Current drive capability is 24mA at the outputs.




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