HD74AC14 Hex Inverter Schmitt Trigger Description The HD74AC14 contains six logic inverters which accept standard CMOS input signals (TTL levels for HD74ACT14) and provide standard CMOS output levels. They are capable of transforming slowly changing input signals into sharply defined, jitter-free output signals. In addition, they have a greater noise margin than conventional inverters. The HD74AC14 has hysteresis between the positive-going and negative-going input thresholds (typically 1.0 V) which is determined internally by transistor ratios and is essentially insensitive to temperature and supply voltage variations. Feature • Outputs Source/Sink 24 mA Pin Arrangement 1 14 VCC 2 13 3 12 4 11 5 10 6 9 GND 7 8 (Top view) HD74AC14 Function Table Input Output A O L H H L DC Characteristics (unless otherwise specified) Item Symbol Maximum quiescent supply current I CC 40 40 µA VIN = VCC or ground, VCC = 5.5 V, Ta = Wordt case Maximum quiescent supply current I CC 4.0 4.0 µA VIN = VCC or ground, VCC = 5.5 V, Ta = 25°C Maximum positive threshold Vt + 3.0 2.2 2.0 V Ta = Worst case 4.5 3.2 5.5 3.9 3.0 0.5 0.8 V Ta = Worst case 4.5 0.9 5.5 1.1 Vh (max) 3.0 1.2 1.2 V Ta = Worst case 4.5 1.4 5.5 1.6 3.0 0.3 0.4 V Ta = Worst case 4.5 0.4 5.5 0.5 Minimum negative threshold Maximum hysteresis Minimum hysteresis 2 Vt – Vh (min) VCC (V) HD74AC14 HD74ACT14 Unit Condition HD74AC14 AC Characteristics Ta = +25°C CL = 50 pF Ta = –40°C to +85°C CL = 50 pF Item Symbol VCC (V)*1 Min Typ Max Min Max Unit Propagation delay t PLH 3.3 1.0 9.5 13.5 1.0 15.0 ns 5.0 1.0 7.0 10.0 1.0 11.0 3.3 1.0 7.5 11.5 1.0 13.0 5.0 1.0 6.0 8.5 1.0 9.5 Propagation delay Note: t PHL ns 1. Voltage Range 3.3 is 3.3 V ± 0.3 V Voltage Range 5.0 is 5.0 V ± 0.5 V Capacitance Item Symbol Typ Unit Condition Input capacitance CIN 4.5 pF VCC = 5.5 V Power dissipation capacitance CPD 25.0 pF VCC = 5.0 V 3 Unit: mm 19.20 20.32 Max 8 6.30 7.40 Max 14 1.30 7 2.54 ± 0.25 0.48 ± 0.10 0.51 Min 2.39 Max 2.54 Min 5.06 Max 1 7.62 + 0.10 0.25 – 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-14 Conforms Conforms 0.97 g Unit: mm 10.06 10.5 Max 8 5.5 14 1 0.10 ± 0.10 1.42 Max 1.27 *0.42 ± 0.08 0.40 ± 0.06 *0.22 ± 0.05 0.20 ± 0.04 2.20 Max 7 + 0.20 7.80 – 0.30 1.15 0° – 8° 0.70 ± 0.20 0.15 0.12 M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DA — Conforms 0.23 g Unit: mm 8.65 9.05 Max 8 1 7 *0.20 ± 0.05 0.635 Max 1.75 Max 3.95 14 + 0.10 6.10 – 0.30 1.08 *0.40 ± 0.06 0.11 0.14 +– 0.04 0° – 8° 1.27 0.67 0.60 +– 0.20 0.15 0.25 M *Pd plating Hitachi Code JEDEC EIAJ Weight (reference value) FP-14DN Conforms Conforms 0.13 g Unit: mm 4.40 5.00 5.30 Max 14 8 1 7 0.65 0.20 ± 0.06 1.0 0.13 M 6.40 ± 0.20 0.10 *Dimension including the plating thickness Base material dimension *0.17 ± 0.05 0.15 ± 0.04 1.10 Max 0.83 Max 0.07 +0.03 –0.04 *0.22+0.08 –0.07 0° – 8° 0.50 ± 0.10 Hitachi Code JEDEC EIAJ Weight (reference value) TTP-14D — — 0.05 g Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. 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Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor products. Hitachi, Ltd. Semiconductor & Integrated Circuits. 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