Texas Instruments SNJ54ABT373FK
- Part Number:
- SNJ54ABT373FK
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6387638-SNJ54ABT373FK
- Description:
- Octal Transparent D-type Latches With 3-State Outputs
- Datasheet:
- sn54abt373
- Number of channels8
- Technology familyABT
- Supply voltage (min) (V)4.5
- Supply voltage (max) (V)5.5
- Input typeTTL-Compatible CMOS
- Output type3-State
- Clock frequency (max) (MHz)150
- IOL (max) (mA)64
- IOH (max) (mA)-32
- Supply current (max) (μA)30000
- FeaturesPartial power down (Ioff)
- Operating temperature range (°C)-55 to 125
- RatingMilitary
The eight latches of the 'ABT373 are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the logic levels set up at the D inputs.
A buffered output-enable (OE\) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.
OE\ does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, 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 SN54ABT373 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT373 is characterized for operation from -40°C to 85°C.
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