DM74LS540WM
- Mfr.Part #
- DM74LS540WM
- Manufacturer
- National Semiconductor
- Package / Case
- Datasheet
- Download
- Description
- BUS DRIVER, LS SERIES
- Stock
- 13,701
- In Stock :
- 13,701
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- Manufacturer :
- National Semiconductor
- Product Category :
- Buffers, Drivers, Receivers, Transceivers
- Terminal Form :
- Gull wing
- Supply Voltage-Max (Vsup) :
- 5.25 V
- JESD-609 Code :
- e0
- Power Supplies :
- 5 V
- Terminal Finish :
- Tin/Lead (Sn/Pb)
- Qualification Status :
- Not Qualified
- Factory Lead Time :
- 1 Week
- Surface Mount :
- yes
- Temperature Grade :
- COMMERCIAL
- Output Characteristics :
- 3-STATE
- Package Shape :
- RECTANGULAR
- Terminal Position :
- Dual
- Terminal Pitch :
- 1.27 mm
- Number of Terminals :
- 20
- Package :
- Bulk
- Seated Height-Max :
- 2.65 mm
- Base Product Number :
- 74LS540
- Output Polarity :
- INVERTED
- Number of Bits :
- 8
- Family :
- LS
- Power Supply Current-Max (ICC) :
- 50 mA
- JESD-30 Code :
- R-PDSO-G20
- Peak Reflow Temperature (Cel) :
- NOT SPECIFIED
- Product Status :
- Active
- Length :
- 12.8 mm
- Number of Functions :
- 1
- Max I(ol) :
- 0.024 A
- Additional Feature :
- WITH DUAL OUTPUT ENABLE
- Width :
- 7.5 mm
- Propagation Delay (tpd) :
- 18 ns
- Number of Ports :
- 2
- Reach Compliance Code :
- Unknown
- Series :
- *
- Supply Voltage-Min (Vsup) :
- 4.75 V
- Logic IC Type :
- BUS DRIVER
- Control Type :
- ENABLE LOW
- Datasheets
- DM74LS540WM

Buffers, Drivers, Receivers, Transceivers National Semiconductor DM74LS540WM Overview
The DM74LS540WM, manufactured by National Semiconductor, represents a robust solution in the realm of bus drivers within the LS (Low Power Schottky) series. Designed to interface between data buses and the specific needs of operating and control systems, this device ensures reliable and efficient data transmission with minimal power loss. The DM74LS540WM excels in environments requiring high-speed, low-power operation and features a durable design suited to a wide range of industrial applications. The use of this particular part, Buffers, Drivers, Receivers, Transceivers National Semiconductor DM74LS540WM, enhances system reliability through improved signal integrity and reduced electrical noise, making it an ideal choice for manufacturers looking to incorporate dependable data handling capabilities in their products.
DM74LS540WM Features
This bus driver is equipped with octal inverters and features non-inverting outputs, which provide the necessary drive for bus-oriented systems. Key features include:
- High drive outputs (-15 mA IOL, 24 mA IOH) which are essential for driving capacitive loads and maintaining signal fidelity across long distances.
- Built-in input buffering which helps stabilize the input signals and reduce the load on the data source.
- Advanced LS technology that ensures lower power consumption and faster response times compared to standard CMOS and TTL drivers.
- A wide operating temperature range (-40°C to 85°C) that guarantees performance in both commercial and industrial environments.
- Available in a Widebody 20-pin SOIC package, providing compatibility with automated assembly processes and robust physical protection for the IC.
DM74LS540WM Applications
- Microprocessor Systems: Enhances communication between the microprocessor and peripheral devices by providing robust data flow management.
- Data Communication Equipment: Used to drive signals over long cables, ensuring integrity and speed of data transfers in networks and communication interfaces.
- Memory Drivers: Acts as a bridge for data transmission between memory units and processing cores, crucial for high-speed operations in servers and computers.
- Industrial Automation: Integral in control systems where precise and reliable data handling is necessary for the automation of complex manufacturing processes.
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