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M38510/30905BEA +BOM

Data Selectors/Multiplexers With 3-State Outputs

M38510/30905BEA Allgemeine Beschreibung

These monolithic data selectors/multiplexers contain full on-chip binary decoding to select one-of-eight data sources and feature a strobe-controlled three-state output. The strobe must be at a low logic level to enable these devices. The three-state outputs permit a number of outputs to be connected to a common bus. When the strobe input is high, both outputs are in a high-impedance state in which both the upper and lower transistors of each totem-pole output are off, and the output neither drives nor loads the bus significantly. When the strobe is low, the outputs are activated and operate as standard TTL totem-pole outputs.

To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output control circuitry is designed so that the average output disable time is shorter than the average output enable time. The SN54251 and SN74251 have output clamp diodes to attenuate reflections on the bus line.

Texas Instruments, Inc Inventar

Hauptmerkmale

  • Three-State Versions of '151, 'LS151, 'S151
  • Three State Outputs Interface Directly with System Bus
  • Perform Parallel-to-Serial Conversion
  • Permit Multiplexing from N-Lines to One Line
  • Complementary Outputs Provide True and Inverted Data
  • Fully Compatible with Most TTL Circuits
Texas Instruments, Inc Originalbestand
Texas Instruments, Inc Inventar

Spezifikationen

Technology family LS Function Digital Multiplexer
Configuration 8:1 Number of channels 1
Operating temperature range (°C) -55 to 125 Rating Military
feature-logic-family LS feature-logic-function Multiplexer
feature-configuration 1 x 8:1 feature-number-of-elements-per-chip 1
feature-number-of-inputs-per-chip 8 feature-number-of-outputs-per-chip 1
feature-polarity Inverting/Non-Inverting feature-process-technology Bipolar
feature-output-type 3-State feature-maximum-low-level-output-current-ma 4
feature-maximum-high-level-output-current-ma -1 feature-minimum-operating-supply-voltage-v 4.5
feature-maximum-operating-supply-voltage-v 5.5 feature-tolerant-i-os-v
feature-maximum-power-dissipation-mw 35(Typ) feature-packaging Tube
feature-rad-hard No feature-pin-count 16
feature-cecc-qualified No feature-esd-protection
feature-escc-qualified feature-military
feature-aec-qualified No feature-aec-qualified-number
feature-eccn-code EAR99 feature-svhc Yes
feature-svhc-exceeds-threshold No

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