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INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: · The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC · The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF4094B MSI 8-stage shift-and-store bus register Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification 8-stage shift-and-store bus register DESCRIPTION The HEF4094B is an 8-stage serial shift register having a storage latch associated with each stage for strobing data from the serial input to parallel buffered 3-state outputs O0 to O7. The parallel outputs may be connected directly to common bus lines. Data is shifted on positive-going clock transitions. The data in each shift register stage is transferred to the storage register when the strobe (STR) input is HIGH. Data in the storage register appears at the outputs whenever the output enable (EO) signal is HIGH. HEF4094B MSI Two serial outputs (Os and O's) are available for cascading a number of HEF4094B devices. Data is available at Os on positive-going clock edges to allow high-speed operation in cascaded systems in which the clock rise time is fast. The same serial information is available at O's on the next negative-going clock edge and provides cascading HEF4094B devices when the clock rise time is slow. Fig.2 Pinning diagram. HEF4094BP(N): 16-lead DIL; plastic (SOT38-1) HEF4094BD(F): 16-lead DIL; ceramic (cerdip) (SOT74) HEF4094BT(D): 16-lead SO; plastic (SOT109-1) ( ): Package Designator North America PINNING D CP Fig.1 Functional diagram. STR data input clock input strobe input EO Os, O's O0 to O7 output enable input serial outputs parallel outputs FAMILY DATA, IDD LIMITS category MSI See Family Specifications January 1995 2 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... January 1995 3 Fig.3 Logic diagram. Product specification Fig.4 One D-latch. Philips Semiconductors 8-stage shift-and-store bus register HEF4094B MSI Philips Semiconductors Product specification 8-stage shift-and-store bus register FUNCTION TABLE INPUTS CP EO L L H H H H Notes 1. H = HIGH state (the more positive voltage) 2. L = LOW state (the less positive voltage) 3. X = state is immaterial 4. 5. = positive-going transition = negative-going transition STR X X L H H H D X X X L H H PARALLEL OUTPUTS O0 Z Z nc L H nc On Z Z nc On-1 On-1 nc SERIAL OUTPUTS Os O'6 nc O'6 O'6 O'6 nc O's nc O7 nc nc nc O7 HEF4094B MSI 6. Z = high impedance off state 7. nc = no change 8. O'6 = the information in the seventh shift register stage At the positive