STMicroelectronics HCF4021B
the HCF4014B, HCF4021B (intermediate temperature range) are monolithic integrated circuits, available in 16-lead dual in-line plastic or ceramic package and plastic micro package. The HCC/HCF4014B and HCC/HCF4021B series types are 8-stage parallel-or serial-input/serial-output registers having common CLOCK and PARALLEL/SERIAL CONTROL inputs, a single SERIAL data input, and individual parallel ”JAM” inputs to each register stage. Each register stage is a D type, master-slave flip-flop in addition to an output from stage 8, ”Q” outputs are also available from stages 6 and 7.
| Part No. |
HCF4021B |
| Datasheet |
HCF4021B
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| Manufacturer |
 STMicroelectronics |
| Description |
8-STAGE STATIC SHIFT REGISTERS |
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DESCRIPTION
OF ”B” SERIES CMOS DEVICES” EY (Plastic Package) F (Ceramic Package) M1 (Micro Package) C1 (Plastic Chip Carrier) DESCRIPTION
The HCC4014B, HCC4021B (extended temperature range) and Parallel as well as serial entry is made into the register synchronously with the positive clock line transition in the HCC/HCF4014B . In the HCC/HCF4021B serial entry is synchronous with the clock but parallel entry is asynchronous. In both types, 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 November 1996 ORDER CODES : HCC40XXBF HCF40XXBM1 HCF40XXBEY HCF40XXBC1 PIN CONNECTIONS 1/13 HCC/HCF4014B/4021B FUNCTIONAL DIAGRAM ABSOLUTE MAXIMUM RATINGS
Symbol V DD * Vi II Pto t Parameter Supply Voltage : HC C Types H CF Typ...
