器件名称:
74HCT14D
功能描述:
Hex inverting Schmitt trigger
文件大小:
120.59KB 共23页
简 介:
INTEGRATED CIRCUITS DATA SHEET 74HC14; 74HCT14 Hex inverting Schmitt trigger Product specication Supersedes data of 1997 Aug 26 2003 Oct 30 Philips Semiconductors Product specication Hex inverting Schmitt trigger FEATURES Applications: – Wave and pulse shapers – Astable multivibrators – Monostable multivibrators. Complies with JEDEC standard no. 7A ESD protection: HBM EIA/JESD22-A114-A exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V. Specified from 40 to +85 °C and 40 to +125 °C. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns DESCRIPTION 74HC14; 74HCT14 The 74HC14 and 74HCT14 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC14 and 74HCT14 provide six inverting buffers with Schmitt-trigger action. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. TYPICAL SYMBOL tPHL/tPLH CI CPD Notes 1. CPD is used to determine the dynamic power dissipation (PD in W): PD = CPD × VCC2 × fi × N + Σ(CL × VCC2 × fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts; N = total load switching outputs; Σ(CL × VCC2 × fo) = sum of the outputs. 2. For type 74HC14 the condition is VI = GND to VCC. For type 74HCT14 the condition is VI = GND to VCC 1.5 V. PARAMETER propagation delay nA to nY input capacitance power dissi……
