SN54LVTH540, SN74LVTH540 3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

SCBS681D - MARCH 1997 - REVISED MARCH 1998

features

State-of-the-Art Advanced BiCMOS Technology (ABT) Design for 3.3-V Operation and Low Static Power Dissipation
High-Impedance State During Power Up and Power Down
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V V_CC)
Support Unregulated Battery Operation Down to 2.7 V
Typical V_OLP (Output Ground Bounce) < 0.8 V at V_CC = 3.3 V, T_A = 25°C
Power Off Disables Outputs, Permitting Live Insertion
Latch-Up Performance Exceeds 500 mA Per JESD 17
ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), Ceramic Flat (W) Package, and Ceramic (J) DIPs

description

These octal buffers/drivers are designed specifically for low-voltage (3.3-V) V_CC operation, but with the capability to provide a TTL interface to a 5-V system environment.

The 'LVTH540 devices are ideal for driving bus lines or buffer memory address registers. These devices feature inputs and outputs on opposite sides of the package that facilitate printed circuit board layout.

The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output-enable (OE1\ or OE2\) input is high, all outputs are in the high-impedance state.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

When V_CC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 V, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN54LVTH540 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LVTH540 is characterized for operation from -40°C to 85°C.

Title: 3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
Product Family: INVERTERS
Device Functionality: OCTAL BUFFER/DRIVER
Orderable Devices: SN74LVTH540DBLE, SN74LVTH540DW, SN74LVTH540DWR, SN74LVTH540PWLE

View the complete PDF datasheet: scbs681d.pdf (193 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN74LVTH540

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