UCD4014B

DESCRIPTION 

The UTC UCD4014B is a 8-stage synchronous parallel or 

serial input/serial output registers having common CLOCK and 

PARALLEL/SERIAL CONTROL inputs, a SERIAL data input, and 

individual parallel inputs to each register stage. Each register is a 

D-type master-slave flip-flop. Q6, Q7, and Q8 are outputs. With the 

positive clock line transition in the UCD4014B parallel/serial entry 

is made into the register synchronously. 

In UCD4014B serial entry is controlled by the 

PARALLEL/SERIAL CONTROL input. When the 

PARALLEL/SERIAL CONTROL input is low, data is serially shifted 

into the 8-stage register synchronously with the positive transition 

of the clock line. When the PARALLEL/SERIAL CONTROL input is 

high, data is jammed into the 8-stage register via the parallel input 

lines and synchronous with the positive transition of the clock line. 

 FEATURES 

* Up to 20V operation voltage 

* 12MHz (typ.) clock rate at 10V 

* Maximum input current of 1μA at 18V 

* Fully static operation 

* 8 master-slave flip-flops plus output buffering and control gating 

 APPLICATIONS 

* General-purpose register 

* Parallel input/serial output data queueing 

* Parallel to serial data conversion