HD74LS14 Datasheet, PDF (4/6 Pages) Hitachi Semiconductor – Hex Schmitt Trigger Inverters

HD74LS14
Testing Method
Test Circuit
V_CC Output
Input
P.G.
Zout=50Ω
RL
CL
Notes: 1. All diodes are 1S2074(H).
2. C_L includes probe and jig capacitance.
Waveform
t_TLH
t_THL
90%
90%
3V
Input
10%
1.6 V
0.7 V _10%
0V
t_PHL
t_PLH
Output
1.3 V
V_OH
1.3 V
V_OL
Note: Input pulse: t_TLH ≤ 15 ns, t_THL ≤ 6 ns P_RR = 1 MHz, duty cycle 50%.
Rev.3.00, Jul.13.2005, page 4 of 5