HCC40105B Datasheet PDF | STMicroelectronics

STMicroelectronics HCC40105B

The HCC40105B (extended temperature range) and HCF40105B (intermediate temperature range) are monolithic integrated circuits, available in 16-lead dual in-line plastic or ceramic package. The HCC/HCF40105B is a low-power first-in-first-out (FIFO) ”elastic” storage register that can store 16 4-bit words. It is capable of handling input and output data at different shifting rates.

Part No.	HCC40105B
Datasheet	HCC40105B Download
Manufacturer	STMicroelectronics
Description	FIFO REGISTER
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DESCRIPTION

OF ”B” SERIES CMOS DEVICES” READY) indicates if the FIFO contains data. As the earliest data are removed from the bottom of the data stack (the output end), all data entered later will automatically propagate (ripple) toward the output. EY (Plastic Package) F (Ceramic Package) C1 (Chip Carrier) ORDER CODES : HCC40105BF HCF40105BEY HCF40105BC1

DESCRIPTION

This feature makes it particularly useful as a buffer between asynchronous systems. Each word position in the register is clocked by a control flip-flop, which stores a marker bit. A ”1” signifies that the position’s data is filled and a ”0” denotes a vacancy in that position. The control flip-flop detects the state of the preceding flip-flop and communicates its own status to the succeeding flip-flop. When a control flip-flop is in the ”0” state and sees a ”1” in the preceding flip-flop, it generates a clock pulse that transfers data from the preceding four data latches into its own four data latches and resets the preceding flip-flop to ”0”.