TC74HC165AF(EL,F) Toshiba

TC74HC165AP/AF TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74HC165AP, TC74HC165AF 8-Bit Shift Register (P-IN, S-OUT) The TC74HC165A is a high speed CMOS 8-BIT TC74HC165AP PARALLEL/SERIAL-IN, SERIAL-OUT SHIFT REGISTER 2 fabricated with silicon gate C MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. It consists of parallel-in or serial-in, serial-out 8-bit shift register with a gated clock inputs. When the SHIFT/ LOAD input is held high, the serial data input is enabled and the eight frip-frops perform serial shifting with each clock pulse. When the SHIFT/ LOAD input is held low, the parallel data is loaded asynchronously into the register at positive going TC74HC165AF transition of the clock pulse. The CK-INH input should be shifted high only when the CK input is held high. All inputs are equipped with protection circuits against static discharge or transient excess voltage. Features High speed: f = 56 MHz (typ.) at V = 5 V max CC Low power dissipation: I = 4 A (max) at Ta = 25C CC Weight High noise immunity: V = V = 28% V (min) NIH NIL CC DIP16-P-300-2.54A : 1.00 g (typ.) Output drive capability: 10 LSTTL loads SOP16-P-300-1.27A : 0.18 g (typ.) Symmetrical output impedance: I = I = 4 mA (min) OH OL Balanced propagation delays: t t pLH pHL Wide operating voltage range: V (opr) = 2 to 6 V CC Pin and function compatible with 74LS165 Pin Assignment Start of commercial production 1988-05 1 2014-03-01 TC74HC165AP/AF IEC Logic Symbol Truth Table Internal Inputs Outputs Outputs SHIFT/ CLOCK SERIAL PARALLEL CLOCK QA QB QH QH LOAD INH IN AH L X X X ah a b h h H L H X H QAnQGn QGn H L L X L QAnQGn QGn H L H X H QAnQGn QGn H L L X L QAnQGn QGn H X H X X No Change H H X X X No Change X: Dont care ah: The level of steady state input voltage at inputs A through H respectively QAn~QGn: The level of QA~QG, respectively, before the most recent positive transition of the CK. 2 2014-03-01