SN54LVTH244A, SN74LVTH244A 3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

SCAS586C - DECEMBER 1996 - 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
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
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
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) Packages, and Ceramic (J) DIPs

description

These octal buffers and line 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 'LVTH244A devices are organized as two 4-bit line drivers with separate output-enable (OE\) inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the 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 SN54LVTH244A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LVTH244A is characterized for operation from -40°C to 85°C.

Title: 3.3-V ABT OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
Product Family: NON INVERTERS
Device Functionality: OCTAL BUFFER/DRIVER
Orderable Devices: SN74LVTH244ADBLE, SN74LVTH244ADW, SN74LVTH244ADWR, SN74LVTH244APWLE

View the complete PDF datasheet: scas586c.pdf (172 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN74LVTH244A

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