Features: ICC reduced by 50%Select inputs from two data sourcesFully positive edge-triggered operationOutputs source/sink 24 mAAC/ACT399 has TTL-compatible inputsPinoutSpecifications Supply Voltage (VCC) −0.5V to +7.0V DC Input Diode Current (IIK) VI = −0.5V −20 m...
74AC399: Features: ICC reduced by 50%Select inputs from two data sourcesFully positive edge-triggered operationOutputs source/sink 24 mAAC/ACT399 has TTL-compatible inputsPinoutSpecifications Supply Vol...
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ICC reduced by 50%
Select inputs from two data sources
Fully positive edge-triggered operation
Outputs source/sink 24 mA
AC/ACT399 has TTL-compatible inputs
Supply Voltage (VCC) | −0.5V to +7.0V |
DC Input Diode Current (IIK) | |
VI = −0.5V | −20 mA |
VI = VCC + 0.5V | +20 mA |
DC Input Voltage (VI) | −0.5V to VCC + 0.5V |
DC Output Diode Current (IOK) | |
VO = −0.5V | −20 mA |
VO = VCC + 0.5V | +20 mA |
DC Output Voltage (VO) | −0.5V to VCC + 0.5V |
DC Output Source | |
Sink Current (IO) | ± 50 mA |
DC VCC or Ground Current | |
per Output Pin (ICC or IGND) | ± 50 mA |
Storage Temperature (TSTG) | −65 to +150 |
Junction Temperature (TJ) | |
PDIP | +140 |
The 74AC399 is the logical equivalent of a quad 2-input multiplexer feeding into four edge-triggered flip-flops. A common Select input determines which of the two 4-bit words is accepted. The selected data enters the flip-flop on the rising edge of the clock.