54ACTQ657

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.

Supply Voltage (V_CC)........... −0.5V to +7.0V
DC Input Diode Current (I_IK)
V_I = −0.5V ................ ....−20 mA
V_I = V_CC + 0.5V.................. +20 mA
DC Input Voltage (V_I) .........−0.5V to V_CC + 0.5V
DC Output Diode Current (I_OK)
V_O = −0.5V..................... −20 mA
V_O = V_CC + 0.5V.............. .... +20 mA
DC Output Voltage (V_O) ........−0.5V to V_CC + 0.5V
DC Output Source
or Sink Current (I_O) .................±50 mA
DC VCC or Ground Current
per Output Pin (ICC or I_GND) .............±50 mA
Storage Temperature (T_STG) .......−65°C to +150°C
DC Latch-up Source or
Sink Current .....................±300 mA
Note 1: Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply,temperature, and output/input loading variables. National does not recommend operation of FACT™ circuits outside databook specifications.

The 54ACTQ657 contains eight non-inverting buffers with TRI-STATE outputs and an 8-bit parity generator/checker. Intended for bus oriented applications, the device combines the '245 and the '280 functions in one package.

The 54ACTQ657 utilizes NSC Quiet Series technology to guarantee quiet output switching and improved dynamic threshold performance. 54ACTQ657 features GTO™ output control and undershoot corrector in addition to a split ground bus for superior performance.