1 General description

The 74HC4515 is a 4-to-16 line decoder/demultiplexer having four binary weighted

address inputs (A0 to A3) with latches, a latch enable input (LE), an enable input (E) and

16 inverting outputs (Q0, to Q15).

When LE is HIGH, the selected output is determined by the data on An. When LE goes

LOW, the last data present at An are stored in the latches and the outputs remain stable.

When E is LOW, the selected output, determined by the contents of the latch, is LOW.

When E is HIGH, all outputs are HIGH. The enable input E does not affect the state of

the latch. When the device is used as a demultiplexer, E is the data input and A0 to A3

are the address inputs.

Inputs include clamp diodes. This enables the use of current limiting resistors to interface

inputs to voltages in excess of VCC.

2 Features and benefits

• Inverting outputs

• CMOS input levels

• 16-line demultiplexing capability

• Decodes 4 binary-coded inputs into 16 mutually-exclusive outputs

• Complies with JEDEC standard no. 7 A

• ESD protection:

– HBM JESD22-A114F exceeds 2000 V

– MM JESD22-A115-A exceeds 200 V

• Specified from -40 °C to +85 °C and -40 °C to +125 °C

3 Applications

• Digital multiplexing

• Address decoding

• Hexadecimal/BCD decoding

74HC4515属于集成电路（IC） > 信号开关，多路复用器，解码器。安世半导体(中国)有限公司制造生产的74HC4515信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。