74HC2G17 Datasheet, PDF (9/18 Pages) NXP Semiconductors – Dual non-inverting Schmitt trigger

NXP Semiconductors
74HC2G17; 74HCT2G17
Dual non-inverting Schmitt trigger
V_I
PULSE
GENERATOR
V_CC
D.U.T
R_T
V_CC
V_O
R_L = 1 kΩ
C_L 50 pF
open
mgk563
Test data is given in Table 11.
Definitions test circuit:
R_L = Load resistance.
C_L = Load capacitance including jig and probe capacitance.
R_T = Termination resistance should be equal to output impedance Z_o of the pulse generator.
Fig 6. Load circuitry for switching times
Table 11. Test data
Type
Input
V_I
t_r, t_f
74HC2G17
GND to V_CC
6 ns
74HCT2G17
GND to 3.0 V
6 ns
14. Transfer characteristics
Test
t_PHL, t_PLH
open
open
Table 12. Transfer characteristics
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 6.
Symbol Parameter
Conditions
25 °C
Min Typ Max
74HC2G17
V_T+
positive-going
threshold voltage
V_T−
negative-going
threshold voltage
V_H
hysteresis voltage
see Figure 7, Figure 8
V_CC = 2.0 V
V_CC = 4.5 V
V_CC = 6.0 V
see Figure 7, Figure 8
V_CC = 2.0 V
V_CC = 4.5 V
V_CC = 6.0 V
V_T+ − V_T−; see Figure 7,
Figure 8 and Figure 9
V_CC = 2.0 V
V_CC = 4.5 V
V_CC = 6.0 V
1.00 1.18 1.50
2.30 2.60 3.15
3.00 3.46 4.20
0.30 0.60 0.90
1.13 1.47 2.00
1.50 2.06 2.60
0.30 0.60 1.00
0.60 1.13 1.40
0.80 1.40 1.70
−40 °C to +125 °C Unit
Min Max
Max
(85 °C) (125 °C)
1.00 1.50
2.30 3.15
3.00 4.20
1.50 V
3.15 V
4.20 V
0.30 0.90
1.13 2.00
1.50 2.60
0.90 V
2.00 V
2.60 V
0.30 1.00
0.60 1.40
0.80 1.70
1.00 V
1.40 V
1.70 V
74HC_HCT2G17_1
Product data sheet
Rev. 01 — 6 October 2006
© NXP B.V. 2006. All rights reserved.
9 of 18