CD54HC4514F3A

CD54HC4514F3A Features

• Multifunction Capability- Binary to 1-of-16 Decoder- 1-to-16 Line Demultiplexer • Fanout (Over Temperature Range)- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads • Wide Operating Temperature Range . . . -55oC to 125oC • Balanced Propagation Delay and Transition Times • Significant Power Reduction Compared to LSTTLLogic ICs • HC Types- 2V to 6V Operation- High Noise Immunity: NIL = 30%, NIH = 30% of VCCat VCC = 5V

CD54HC4514F3A Description

The CD54HC4514, CD74HC4514, and CD74HC4515 arehigh-speed silicon gate devices consisting of a 4-bit strobedlatch and a 4- to 16-line decoder. The selected output isenabled by a low on the enable input (E). A high on E inhibitsselection of any output. Demultiplexing is accomplished byusing the E input as the data input and the select inputs (A0-A3) as addresses. This E input also serves as a chip selectwhen these devices are cascaded.When Latch Enable (LE) is high the output follows changesin the inputs (see truth table). When LE is low the output isisolated from changes in the input and remains at the level(high for the 4514, low for the 4515) it had before the latcheswere enabled. These devices, enhanced versions of theequivalent CMOS types, can drive 10 LSTTL loads.123456789101112LEA0A1Y7Y6Y5Y4Y3Y1Y2Y0GND161718192021222324151413VCCA3A2Y10Y11Y9Y15Y12Y13EY8Y14