MC74HC390AD

The MC74HC390AD is designed as dual 4-stage binary ripple counter with /2 or /5 sections which would be high performance siicon gate CMOS.

It has seven features. (1)Output drive capability: 10 LSTTL loads. (2)Outputs directly interface to CMOS, NMOS, and TTL. (3)Operating voltage range would be from 2.0 to 6.0V. (4)Low input current: 1.0uA. (5)High noise immunity characteristic of CMOS devices. (6)In compliance with the requirements defined by JEDEC standard No. 7A. (7)Chip complexity: 244 FETs or 61 equivalent gates. Those are all the main features.

Some absolute maximum ratings have been concluded into several points as follow. (1)Its DC supply voltage (reference to GND) would be from -0.5V to 7.0V. (2)Its DC input voltage (reference to GND) would be from -0.5V to Vcc+0.5V. (3)Its DC output voltage (reference to GND) would be from -0.5V to Vcc+0.5V. (4)Its DC input current per pin would be +/-20mA. (5)Its DC output current per pin would be +/-25V. (6)Its DC supply current, Vcc and GND pins would be +/-50mA. (7)Its power dissipation would be 500mW. (7)Its storage temperature range would be from -65°C to 150°C. (8)Its lead temperature would be 260°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics at Vcc=6.0V are concluded as follow. (1)Its minimum high level input voltage would be 4.2V. (2)Its maximum low level input voltage would be 1.8V. (3)Its minimum high-level output voltage would be 5.9V. (4)Its maximum low level output voltage would be 0.1V. (5)Its maximum input leakage current would be +/-1.0uA. (6)Its maximum quiescent supply current would be 4.0uA. (7)Its maximum clock frequency 50% duty cycle would be 50MHz. (8)Its maximum propagation delay, clock A to QA would be 16ns. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!