MC14495-1

The MC14495-1 is hexadecimal to seven segment latch / decoder LED driver which is construsted with CMOS enhancement-mode devices and NPN bipolar output drivers in a monolithic structure. The circuit provides the functions of a 4-bit storage latch. The decoder is implemented utilizing a mask-programmable ROM. With a 5 volt power supply, it can be used without resistor interface to drive seven segment LEDs. The series output resistors of, typically, 290 ohms are internal to the device. Applications include MPU systems display driver, instrument display driver, computer / calculator display driver, clockpit display driver, and various clock, watch, and timer uses.

It has many features. The first one is low logic circuit power dissipation. The second one is high current sourcing outputs with internal limiting resistors. The third one is latch storage of code. The fourth one is supply voltage range which would be from 4.5V to 18V. The fifth one is CMOS input switching levels. The sixth one is standard ROM provides hex-to-seven segment decoding. The seventh one is other ROM options available upon request. The eighth one is chip complexity which means 187 FETs plus 9 NPNs or 49 equivalent gates. That are all the main features.

Some absolute maximum ratings have been concluded into several points as follow. The first one is about its DC supply voltage which would be from -0.5V to +18V. The second one is about its input voltage, all inputs which would be from -0.5V to Vdd+0.5V. The third one is about its DC current drain per input pin which would be 10mA. The fourth one is about its operating temperature range which would be from -40°C to 85°C. The fifth one is about its storage temperature range which would be from -65°C to +150°C. And so on. For more information please contact us.