Low

SN74HCT257N - 

Data Selector / Multiplexer, 3-State Outputs, HCT Family, 4 Channels, 2:1, 4.5 V to 5.5 V, DIP-16

TEXAS INSTRUMENTS SN74HCT257N

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Manufacturer Part No:
SN74HCT257N
Order Code:
1740187
Technical Datasheet:
(EN)
See all Technical Docs

Product Information

:
74HCT
:
-40°C
:
Data Selector / Multiplexer
:
85°C
:
16Pins
:
DIP
:
4Channels
:
74257
:
-
:
-
:
2:1
:
4.5V
:
74HCT257
:
Each
:
5.5V
:
-
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Product Overview

The SN74HCT257N is a 2-to-1 quadruple Data Selector/Multiplexer with 3-state outputs. It is designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the OE\ input is at the high logic level. To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pull-up resistor, the minimum value of the resistor is determined by the current-sinking capability of the driver.
  • Typical tpd = 17ns
  • Inputs are TTL-voltage compatible
  • Provide bus interface from multiple sources in high-performance systems
  • Buffered inputs and outputs
  • 80µA Maximum low power consumption
  • ±6mA Output drive at 5V
  • 1µA Maximum low input current

Applications

Industrial, Communications & Networking

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