74ACT1284 - Brand New STMicroelectronics Special Logic ICs
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Description
The 74ACT1284 is a special logic IC that contains four non-inverting bidirectional buffers and three non-inverting buffers with open drain outputs. It is designed to provide a standard signaling method for a bi-directional parallel peripheral in an Extended Capabilities Port mode (ECP). The IC has an HD input pin that enables the B ports to switch from open drain to a high drive totem pole output. It can source 14 mA on all seven buffers. The direction of data flow on the bidirectional buffers is determined by the DIR input.
Specifications and Features
- TTL-compatible inputs
- A Ports have standard 4 mA totem pole outputs
- Typical input hysteresis of 0.5V
- B Port high drive source/sink capability of 14 mA
- Bidirectional non-inverting buffers
- Supports IEEE P1284 Level 1 and Level 2 signaling standards for bidirectional parallel communications between personal computers and printing peripherals
- B Port outputs in High Impedance mode during power down
- Guaranteed 4000V minimum ESD protection
Application Scenarios
The 74ACT1284 IC is commonly used in applications where bi-directional parallel communication is required between personal computers and printing peripherals. It provides a reliable and standardized signaling method for data transfer.
Comparison
Advantages- High drive source/sink capability of 14 mA
Disadvantages- None identified
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Datenblatt
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Beliebte Teile der gleichen Art
- Datasheet: Download 74ACT1284
- Chipdaten Teil: CD92-74ACT1284
- Lagerhaus: China, Hongkong
- Versenden: Innerhalb von 24 Stunden
- Kostenloser Versand: Yes
- Bevorzugter Versand: Yes, 3-5 days
- Letzte Aktualisierung: 2024/06/13 17:23 +0800
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