HCF4021 Asynchronous parallel input or synchronous serial-in/serial-out 8-stage static shift register Datasheet - production data Description The HCF4021 is a monolithic integrated circuit fabricated in metal oxide semiconductor technology available in PDIP-16 and SO-16 PDIP-16 SO-16 packages. This device is an 8-stage parallel or serial- Features input/serial-output register having common clock and parallel/serial control inputs, a single serial Medium speed operation: 12 MHz (typ.) clock data input, and individual parallelja inputs to rate at V - V = 10 V DD SS each register stage. Each register stage is a D- Fully static operation type, master-slave flip-flop in addition to an output 8 master-slave flip-flops plus output buffering from stage 8. outputs are also available from and control gating stages 6 and 7. Serial entry is synchronous with the clock but parallel entry is asynchronous. Quiescent current specified up to 20 V In this device, entry is controlled by the 5 V, 10 V, and 15 V parametric ratings parallel/serial control input. When the Input leakage current I = 100 nA (max.) at I parallel/serial control input is low, data are serially V = 18 V, T = 25 C DD A shifted into the 8-stage register synchronously 100% tested for quiescent current with the positive transition of the clock line. When the parallel/serial control input is high, data are ESD performance jammed into the 8-stage register via the parallel CDM: 1 kV input lines and synchronous with the positive HBM: 2 kV transition of the clock line. The clock input of the MM: 200 V internal stage is forced when asynchronous parallel entry is made. Register expansion using Applications multiple packages is permitted. Automotive Industrial Computer Consumer Table 1. Device summary Order code Temperature range Package Packing Marking HCF4021M013TR -55 C to +125 C SO-16 HCF4021 Tape & reel SO-16 (1) HCF4021YM013TR -40 C to +125 C HCF4021Y (1) (automotive grade) HCF4021BEY -55 C to +125 C PDIP-16 Tube HCF4021BE 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q002 or equivalent. September 2013 DocID008216 Rev 3 1/13 This is information on a product in full production. www.st.comContents HCF4021 Contents 1 Pin information . 3 2 Functional description . 4 3 Electrical characteristics . 5 4 Package information 10 4.1 PDIP-16 (0.25) package information 10 4.2 SO-16 package information . 11 5 Ordering information . 12 6 Revision history . 12 2/13 DocID008216 Rev 3