54AC191L_1354739

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)
VI = −0.5V                                                        −20 mA
VI = 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 V_CC or Ground Current
per Output Pin (I_CC or I_GND)                              ±50 mA
Storage Temperature (T_STG)                              −65°C to +150°C

The 54AC191L_1354739 is a reversible modulo 16 binary counter. It features synchronous counting and asynchronous presetting. The preset feature allows the 54AC191L_1354739 to be used in programmable dividers. The Count Enable input, the Terminal Count output and the Ripple Clock output make possible a variety of methods of implementing multistage counters. In the counting modes, state changes of 54AC191L_1354739 are initiated by the rising edge of the clock.