Texas Instruments SN74LS640-1N Buffers, Drivers, Receivers and Transceivers
Octal bus transceiver, 8-bit bidirectional, inverting logic function with 3-state outputs.
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
SN74LS640-1N
Series
Base Model
Detailed Description
Octal bus transceiver, 8-bit bidirectional, inverting logic function with 3-state outputs. Features a 40ns propagation delay and 15ns turn-on delay. Operates with a 5V supply voltage (4.75V to 5.25V) and supports output currents of ±15mA. Packaged in a 20-pin PDIP for through-hole mounting, with an operating temperature range of 0°C to 70°C. RoHS compliant.
Package
PDIP
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
SN74LS640-1N Datasheet
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Technical Specifications
Texas Instruments SN74LS640-1N Buffers, Drivers, Receivers and Transceivers technical specifications.
General
Series
74LS
RoHS
Yes
Number of Channels
8
Package / Case
20-DIP
Mounting Type
Through Hole
Operating Temperature
0°C ~ 70°C (TA)
Supply Voltage
5V
Package
PDIP
Direction
Bidirectional
Height
4.57mm
Alternate Parts Comparison (SN74LS640-1N vs SN74LS151DR vs SN74LS153DR vs SN74LS155ADR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-DIP | 16-SOIC | 16-SOIC | 16-SOIC |
| Mounting Type | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Supply Voltage | 5V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Current Output High Low | 15mA, 48mA | 400µA, 8mA | 400µA, 8mA | 400µA, 8mA |
| Circuit | -- | 1 x 8:1 | 2 x 4:1 | 1 x 2:4 |
| Independent Circuits | -- | 1 | 1 | 2 |
| Type | -- | Multiplexer | Multiplexer | Decoder/Demultiplexer |
| Voltage Supply Source | -- | Single Supply | Single Supply | Single Supply |
| Action |
Texas Instruments SN74LS640-1N Buffers, Drivers, Receivers and Transceivers Overview
Octal bus transceiver, 8-bit bidirectional, inverting logic function with 3-state outputs. Features a 40ns propagation delay and 15ns turn-on delay. Operates with a 5V supply voltage (4.75V to 5.25V) and supports output currents of ±15mA. Packaged in a 20-pin PDIP for through-hole mounting, with an operating temperature range of 0°C to 70°C.
RoHS compliant.
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