74HCT1G14GV(2007) 查看數據表（PDF） - NXP Semiconductors.

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74HCT1G14GV
(Rev.:2007)

Inverting Schmitt trigger

NXP Semiconductors. 

NXP Semiconductors

74HC1G14; 74HCT1G14

Inverting Schmitt trigger

200

∆ICC(AV)

(µA)

150

100

tf = fall time (ns); 90 % to 10 %

∆ICC(AV) = average additional supply current (µA)

∆ICC(AV) differs with positive or negative input transitions, as shown in Figure 14 and 15.

74HC1G14 and 74HCT1G14 used in relaxation oscillator circuit, see Figure 16.

Remark: All values given are typical unless otherwise specified.

mna036

positive-going

edge

200

∆ICC(AV)

(µA)

150

100

mna058

positive-going

edge

50

negative-going

50

edge

negative-going

edge

0

0

2.0

4.0

6.0

VCC (V)

0

0

2

4 VCC (V) 6

Fig 14. ∆ICC(AV) for 74HC1G14 devices; linear change of Fig 15. ∆ICC(AV) for 74HCT1G14 devices; linear change

VI between 0.1 × VCC to 0.9 × VCC

of VI between 0.1 × VCC to 0.9 × VCC

R

C

mna035

For 74HC1G14: f = T-1-- ≈ 0---.--8----×-1----R----C---

For 74HCT1G14: f = T-1-- ≈ 0---.--6---7---1-×-----R----C---

Fig 16. Relaxation oscillator using 74HC1G14 and 74HCT1G14

74HC_HCT1G14_4

Product data sheet

Rev. 04 — 17 July 2007

© NXP B.V. 2007. All rights reserved.

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