SN74ABT2244A Octal Buffers And Line/MOS Drivers With 3-State Outputs | TI.com

SN74ABT2244A
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Octal Buffers And Line/MOS Drivers With 3-State Outputs

 

Description

These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the SN54ABT2240, SN74ABT2240A, and 'ABT2241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE\) inputs, and complementary OE and OE\ inputs. These devices feature high fan-out and improved fan-in.

The outputs, which are designed to sink up to 12 mA, include equivalent 25- series resistors to reduce overshoot and undershoot.

When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN54ABT2244A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT2244A is characterized for operation from -40°C to 85°C.

Features

  • Output Ports Have Equivalent 25- Series Resistors, So No External Resistors Are Required
  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
  • State-of-the-Art EPIC-II BTM BiCMOS Design Significantly Reduces Power Dissipation
  • Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C
  • High-Impedance State During Power Up and Power Down
  • Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB), and Thin Shrink Small-Outline (PW) Packages, Ceramic Chip Carriers (FK), Plastic (N) and Ceramic (J) DIPs, and Ceramic Flat (W) Packages

EPIC-IIB is a trademark of Texas Instruments Incorporated.

Parametrics

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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) IOL (Max) (mA) IOH (Max) (mA) ICC (uA) Input type Output type Features Data rate (Mbps) Rating Operating temperature range (C) Package Group
SN74ABT2244A Order now ABT     4.5     5.5     8     12     -32     30000     TTL-Compatible CMOS     3-State     Ultra high speed (tpd <5ns)
Partial power down (Ioff)
Over-voltage tolerant inputs
Power up 3-state
Damping resistors    
300     Catalog     -40 to 85     PDIP | 20
SOIC | 20
SO | 20
SSOP | 20
TSSOP | 20