74HCT14 Datasheet, PDF (13/23 Pages) NXP Semiconductors – Hex inverting Schmitt trigger

Philips Semiconductors
Hex inverting Schmitt trigger
Product specification
74HC14; 74HCT14
Type 74HCT
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
SYMBOL
PARAMETER
T_amb = 25 °C; note 1
t_PHL/t_PLH
t_THL/t_TLH
propagation delay nA to nY
output transition time
T_amb = −40 to +85 °C
t_PHL/t_PLH
t_THL/t_TLH
propagation delay nA to nY
output transition time
T_amb = −40 to +125 °C
t_PHL/t_PLH
t_THL/t_TLH
propagation delay nA to nY
output transition time
TEST CONDITIONS
WAVEFORMS
V_CC (V)
MIN.
see Fig.9
see Fig.9
4.5
−
4.5
−
see Fig.9
see Fig.9
4.5
43
4.5
19
see Fig.9
see Fig.9
4.5
−
4.5
−
Note
1. All typical values are measured at T_amb = 25 °C.
TYP.
20
7
−
−
−
−
MAX. UNIT
34
ns
15
ns
−
ns
−
ns
51
ns
22
ns
TRANSFER CHARACTERISTIC WAVEFORMS
VO
VH
VT_−
VT₊
VI
MNA844
handbook, halfpage
VI
VT₊
VH
VT_−
VO
MNA845
Fig.7 Transfer characteristic.
V_T+ and V_T− are between limits of 20% and 70%.
Fig.8 The definitions of V_T+, V_T− and V_H.
2003 Oct 30
13