LTC1323: Single 5V AppleTalk® Transceiver Data Sheet8/28/2007245K
Features and Benefits
- Single Chip Provides Complete LocalTalk®/AppleTalk Port
- Operates From a Single 5V Supply
- ESD Protection to ±10kV on Receiver Inputs and Driver Outputs
- Low Power: ICC = 2.4mA Typ
- Shutdown Pin Reduces ICC to 0.5µA Typ
- Receiver Keep-Alive Function: ICC = 65µA Typ
- Differential Driver Drives Either Differential AppleTalk or Single-Ended EIA562 Loads
- Drivers Maintain High Impedance in Three-State or with Power Off
- Thermal Shutdown Protection
- Drivers are Short-Circuit Protected
The LTC1323 is a multi-protocol line transceiver designed to operate on AppleTalk or EIA562-compatible single-ended networks while operating from a single 5V supply. There are two versions of the LTC1323 available: a 16-pin version designed to connect to an AppleTalk network, and a 24-pin version which also includes the additional single-ended drivers and receivers necessary to create an Apple-compatible serial port. An on-board charge pump generates a 5V supply which can be used to power external devices. Additionally, the 24-pin LTC1323 features a micropower keep-alive mode during which one of the single-ended receivers is kept active to monitor external wake-up signals. The LTC1323 draws only 2.4mA quiescent current when active, 65µA in receiver keep-alive mode, and 0.5µA in shutdown, making it ideal for use in battery-powered systems.
The differential driver can drive either differential AppleTalk loads or conventional single-ended loads. The driver outputs three-state when disabled, during shutdown, in receiver keep-alive mode, or when the power is off. The driver outputs will maintain high impedance even with output common-mode voltages beyond the power supply rails. Both the driver outputs and receiver inputs are protected against ESD damage to ±10kV.
- LocalTalk Peripherals
- Notebook/Palmtop Computers
- Battery-Powered Systems
Product Lifecycle Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Documentation & Resources
R277 Reliability Data3/23/201820 K
LTC1323 - Single 5V AppleTalk® Transceiver Specification Notice11/5/200484K
DN85 - Interfacing to Apple LocalTalk ® Networks8/21/2007128K
Digital Isolation and Interface Technology Selection Guide2/7/20204 M
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|LTC1323CSW#PBF||Material Declaration||Reliability Data||24-Lead SOIC (Wide 0.3 Inch)|
|LTC1323CSW#TRPBF||Material Declaration||Reliability Data||24-Lead SOIC (Wide 0.3 Inch)|
|Wafer Fabrication Data||R277 Reliability Data|
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