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54ACT245L データシートの表示(PDF) - National ->Texas Instruments

部品番号54ACT245L National-Semiconductor
National ->Texas Instruments National-Semiconductor
コンポーネント説明Octal Bidirectional Transceiver with TRI-STATE® Inputs/Outputs
54ACT245L Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
Connection Diagrams
Pin Assignment for
DIP and Flatpak
Pin Assignment for LCC
DS100283-3
Truth Table
Inputs
OE
T/R
L
L
L
H
H
X
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
DS100283-4
Outputs
Bus B Data to Bus A
Bus A Data to Bus B
HIGH-Z State
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General Description
The ’AC/’ACT245 contains eight non-inverting bidirectional buffers with TRI-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bidi rectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition.

Features
■ ICC and IOZ reduced by 50%
■ Noninverting buffers
■ Bidirectional data path
■ A and B outputs source/sink 24 mA
■ ’ACT245 has TTL-compatible inputs
■ Standard Microcircuit Drawing (SMD)
   — ’AC245: 5962-87758
   — ’ACT245: 5962-87663

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