File name 4517.pdfINTEGRATED 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
HEF4517B LSI Dual 64-bit static shift register
Product specification File under Integrated Circuits, IC04 January 1995
Philips Semiconductors
Product specification
Dual 64-bit static shift register
DESCRIPTION The HEF4517B consists of two identical, independent 64-bit static shift registers. Each register has separate clock (CP), data input (D), parallel input-enable/output-enable (PE/EO) and four 3-state outputs of the 16th, 32nd, 48th and 64th bit positions (O16 to O64). Data at the D input is entered into the first bit on the LOW to HIGH transition of the clock, regardless of the state of PE/EO.
HEF4517B LSI
When PE/EO is LOW the outputs are enabled and the device is in the 64-bit serial mode. When PE/EO is HIGH the outputs are disabled (high impedance OFF-state), the 64-bit shift register is divided into four 16-bit shift registers with D, O16, O32 and O48 as data inputs of the 1st, 17th, 33rd, and 49th bit respectively. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times.
Fig.1 Functional diagram.
FAMILY DATA, IDD LIMITS category LSI See Family Specifications
January 1995
2
Philips Semiconductors
Product specification
Dual 64-bit static shift register
HEF4517B LSI
Fig.2 Pinning diagram.
HEF4517BP(N): HEF4517BD(F): HEF4517BT(D):
16-lead DIL; plastic (SOT38-1) 16-lead DIL; ceramic (cerdip) (SOT74) 16-lead SO; plastic (SOT109-1)
( ): Package Designator North America PINNING CPA, CPB PE/EOA, PE/EOB DA, DB O16A, O32A, O48A O16B, O32B, O48B O64A, O64B clock inputs parallel input-enable/output-enable inputs data inputs 3-state outputs/inputs 3-state outputs/inputs 3-state outputs
January 1995
3
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Dual 64-bit static shift register HEF4517B LSI
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 5 Philips Semiconductors FUN |