TC4021BF

TC4021BP/BF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC4021BP, TC4021BF TC4021B 8-Stage Static Shift Register (asynchronous parallel input or synchronous serial input/serial output) TC4021B is 8 stage parallel in/serial out shift register, which can be used also for serial in/serial out operations. In the case of parallel operation, the data of PARALLEL IN is input to each F/F asynchronously with CLOCK and the output is obtained. In the case of serial operations, each F/F is triggered by rising edge of CLOCK. (asynchronous parallel or synchronous serial input) Switching of PARALLEL operation and SERIAL operation is achieved by P/ S CONTROL input. When P/ S CONTROL input is “H”, PARALLEL operation is designated and when it is “L”, SERIAL operation is designated. Pin Assignment TC4021BP TC4021BF Weight DIP16-P-300-2.54A SOP16-P-300-1.27A : 1.00 g (typ.) : 0.18 g (typ.) Truth Table Inputs OutputsΔ CLOCKΔΔ P/S PI1 Pln SI Q1 Qn L * * L L Qn − 1 L * * H H Qn − 1 L * * * No Change * H L L * L L * H L H * L H * H H L * H L * H H H * H H n: 2 to 8 Δ: Q1 to Q5 internal ΔΔ: Level change *: Don’t care 1 Start of commercial production 1978-04 2014-03-01 Logic Diagram Parallel TC4021BP/BF Internal Flip Flop 2 2014-03-01 TC4021BP/BF Absolute Maximum Ratings (Note) Characteristics Symbol Rating Unit DC supply voltage Input voltage Output voltage DC input current Power dissipation Operating temperature rang...