HCF40105B

Features:

`3-STATE OUTPUTS
`EXPANDABLE IN EITHER DIRECTION
`STATUS INDICATORS ON INPUT AND OUTPUT
`RESET CAPABILITY
`STANDARDIZED, SYMMETRICAL OUTPUT CHARACTERISTICS
`QUIESCENT CURRENT SPECIFIED AT 20V FOR HCC DEVICE
`5V, 10V, AND 15V PARAMETRIC RATINGS
`INPUT CURRENTOF 100nA AT 18V AND 25°C FOR HCC DEVICE
`100% TESTEDFOR QUIESCENT CURRENT
`MEETSALLREQUIREMENTSOFJEDECTENTATIVE STANDARD No 13A, "STANDARD SPECIFICATIONS FOR DESCRIPTION OF "B" SERIESCMOS DEVICES"


Pinout




Specifications

Symbol	Parameter	Value	Unit
VDD*	Supply Voltage :HCC Types HCF Types	0.5 to + 20 0.5 to + 18	V V
Vi	Input Voltage	0.5 to VDD + 0.5	V
II	DC Input Current (any one input)	± 10	mA
Ptot	Total Power Dissipation (per package) Dissipation per Output Transistor for Top = Full Package-temperature Range	200 100	mW mW
Top	Operating Temperature : HCC Types HCF Types	55 to + 125 40 to + 85
Tstg	Storage Temperature	65 to + 150

Description

In the HCC/HCF40105B  series, the HCC40105B (extended temperature range) and HCF40105B (intermediate temperature range) are monolithic integrated circuits, available in16-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 atdifferent shifting rates. This featuremakes itparticularly 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 itsown status tothe succeeding flip-flop.When a control flip-flop is in the "0" state and sees a "1" in the preceding flip-flop, HCC/HCF40105B  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". The first and last control flip-flops have buffered outputs. Since all empty locations "bubble" automatically to the input end, and all valid data ripple through to the output end, the status of the first control flip-flop (DATA-INREADY) indicates if the FIFOis full, and the status of the last flip-flop (DATA-OUT