TC74HC14A

The TC74HC14A is an adviced high speed CMOS SCHMITT INVERTER frabricated with silicon gate and double-layer metal wiring C2MOS technology. The feature of TC74HC14A are as follows: (1)high speed: tpd = 11ns at VCC = 5V; (2)low power dissipation: ICC = 1A at Ta = 25; (3)high noise immunity: VH = 1.1V at Vcc = 5V; (4)output drive capability: 10 LSTTL Loads; (5)symmertrical output impedance: IOH = IOL = 4mA(min); (6)balanced propagation delays: tpLHtpHL; (7)wide operating voltage range: VCC(opr) = 2V~6V; (8)pin and function compatible with 74LS14.

The absolute maximum ratings of the TC74HC14A are: (1)supply voltage range:  -0.5~7.0V; (2)DC input voltage: -0.5~VCC + 0.5V; (3)DC output voltage: -0.5~Vcc + 0.5V; (4)input diode current: ±20mA; (5)output diode current: ±25mA; (6)DC output current: ±50mA; (7)DC Vcc/Ground current: ±200mA; (8)power dissipation: 180mW; (9)storage temperature: -65~150.

The following is about the electrical characteristics of TC74HC14A: (1)positive threshold voltage: 1.0V min, 1.25V typical and 1.50V max; (2)negative threshold voltage: 0.3V min, 0.65V typical and 0.9V max; (3)hysteresis voltage: 0.3V min, 0.6V typical and 1.0V max; (4)high level output voltage: 1.9V min and 2.0V typical at VIN = VIL, IOH = -20A or 4.18V min and 4.31V typical at VIN = VIL, IOH = -4mA ; (5)low level output voltage:  0.0V typical and 0.1V max at VIN = VIH, IOL = 20A or 0.17V typical and 0.26V max at VIN = VIH, IOL = 4mA ; (6)input leakage current: ±0.1A at VIN = Vcc or GND; (7)quiescent supply current: 1.0A min at VIN = Vcc or GND.