器件名称:
MC74AC132N
功能描述:
QUAD 2-INPUT NAND SCHMITT TRIGGER
文件大小:
132.69KB 共5页
简 介:
MC74AC132 MC74ACT132 Quad 2Input NAND Schmitt Trigger The MC74AC/74ACT132 contains four 2-input NAND gates which are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. In addition, they have greater noise margin than conventional NAND gates. Each circuit contains a 2-input Schmitt trigger. The Schmitt trigger uses positive feedback to effectively speed-up slow input transitions, and provide different input threshold voltages for positive and negative-going transitions. This hysteresis between the positive-going and negative-going input threshold is determined by resistor ratios and is essentially insensitive to temperature and supply voltage variations. Schmitt Trigger Inputs Outputs Source/Sink 24 mA ′ACT132 Has TTL Compatible Inputs PIN CONFIGURATION VCC 14 13 12 11 10 9 8 D SUFFIX CASE 751A-03 PLASTIC N SUFFIX CASE 646-06 PLASTIC QUAD 2-INPUT NAND SCHMITT TRIGGER 1 2 3 4 5 6 7 GND J Suffix — Case 632-08 (Ceramic) N Suffix — Case 646-06 (Plastic) D Suffix — Case 751A-03 (SOIC) FUNCTION TABLE Inputs A L L H H B L H L H Output Y H H H L L = LOW Voltage Level H = HIGH Voltage Level FACT DATA 5-1 MC74AC132 MC74ACT132 RECOMMENDED OPERATING CONDITIONS Symbol VCC Vin, Vout Supply Voltage DC Input Voltage, Output Voltage (Ref. to GND) VCC @ 3.0 V tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs VCC @ 4.5 V VCC @ 5.5 V tr, tf TJ TA IOH IOL Input Rise and Fall Time (Note 2) ′ACT Devices ex……
