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- Brand
- Texas Instruments
- Model
- SN54LS245
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-02
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texas instruments SN54LS245 SN74LS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS handbook
The document describes the SN54LS245 and SN74LS245 octal bus transceivers with 3-state outputs, designed for asynchronous two-way communication between data buses. These devices allow data transmission from an A bus to a B bus or vice versa based on the logic level at the DIR input, while the OE input can disable the device to isolate the buses.
Read onlineTexas Instruments SN54LS245 specifications
| Supply Voltage (VCC) | 4.5 V to 5.5 V (SN74LS245); 4.75 V to 5.25 V (SN54LS245) |
|---|---|
| Operating Temperature Range | -55°C to 125°C (SN54LS245); 0°C to 70°C (SN74LS245) |
| High-Level Output Current | 12 mA to 15 mA (SN54LS245); 24 mA (SN74LS245) |
| Low-Level Output Current | 12 mA to 24 mA (SN54LS245); -15 mA (SN74LS245) |
| Propagation Delay Time | 8 ns to 12 ns typical |
Source: texas instruments SN54LS245 SN74LS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS handbook
All Texas Instruments SN54LS245 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the function of the DIR input?
The DIR (direction-control) input determines whether data transmits from the A bus to the B bus or from the B bus to the A bus.
From: texas instruments SN54LS245 SN74LS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS handbook
What is the typical propagation delay time?
The typical propagation delay time for both low-to-high and high-to-low level outputs is 8 ns.
From: texas instruments SN54LS245 SN74LS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS handbook
What supply voltage range is recommended for the SN54LS245 and SN74LS245?
The recommended supply voltage is 4.5 V to 5.5 V, with a typical value of 5 V.
From: TEXAS INSTRUMENTS SN54LS245 SN74LS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS Manual
What is the maximum high‑level output current for the devices?
The SN54LS245 can source up to 12 mA, while the SN74LS245 can source up to 24 mA.
From: TEXAS INSTRUMENTS SN54LS245 SN74LS245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS Manual