74HCT594 Datasheet | Diodes Incorporated

8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER Description Pin Assignments The 74HCT594 is a high speed CMOS device that is designed to be pin patable with 74LS low power Schottky types. An eight bit shift register accepts data from the serial input (DS) on each positive transition of the shift register clock (SHCP). When asserted low the shift register reset function (SHR) sets all shift register values to zero and is independent of all clocks. Also when asserted low the storage register reset function (STR) sets all shift register values to zero and is independent of all clocks Data from the input serial shift register is placed in the output register with a rising pulse on the storages resister clock (STCP). The storage resister includes output Q7S which is used for cascading information between devices. As the information moves into the storage register, it is asserted on the push-pull outputs Q0Q7. All registers capture data on rising edge and change output on the falling edge. If both clocks are connected together, the input shift register is always one clock cycle ahead of the output register. Features - Wide Supply Voltage Range from 4.5V to 5.5V - Sinks or sources 8m A at VCC = 4.5V - CMOS low power consumption - Schmitt Trigger Action at All Inputs - Inputs accept up to 6.0V - ESD Protection Tested per JESD 22 Exceeds 200-V Machine Model (A115-A) Exceeds 2000-V Human Body Model (A114-A) Exceeds 1000-V Charged Device Model (C101C) - Latch-Up Exceeds 250m A per JESD 78, Class II - Totally Lead-Free & Fully Ro HS pliant (Notes 1 & 2) - Halogen and Antimony Free. “Green” Device (Note 3) Applications - General Purpose Logic - Serial to Parallel Data conversion - Capture and hold data for extended periods of time. - Allow simple serial bit streams from a microcontroller to control as many peripheral lines as needed. - Wide array of products such as: o puter peripherals o Appliances o Industrial control Notes: 1. No purposely added lead....