54HC14 查看數據表（PDF） - Motorola => Freescale

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54HC14

HEX Schmitt-Trigger Inverter High-Performance Silicon-Gate CMOS

Motorola => Freescale 

MC54/74HC14A

4

3

(VT+)

VHtyp

2

(VT–)

1

2

3

4

5

6

VCC, POWER SUPPLY VOLTAGE (VOLTS)

VHtyp = (VT+ typ) – (VT– typ)

Figure 3. Typical Input Threshold, VT+, VT– versus Power Supply Voltage

A

(a) A Schmitt–Trigger Squares Up Inputs With Slow Rise and Fall Times

VCC

VH

Vin

VT+

VT–

GND

VOH

Vout

VOL

Y

(b) A Schmitt–Trigger Offers Maximum Noise Immunity

VCC

VH

Vin

VT+

VT–

GND

VOH

Vout

VOL

Figure 4. Typical Schmitt–Trigger Applications

High–Speed CMOS Logic Data

5

DL129 — Rev 6

MOTOROLA

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