 English |
|
|
|
|
|
|
|
| 74LVC14A Datasheet, PDF (6/10 Pages) NXP Semiconductors – Hex inverting Schmitt-trigger with 5V tolerant input | |||
| |||
| ◁ |
Philips Semiconductors
Hex inverting Schmitt-trigger with 5V
tolerant input
Product specification
74LVC14A
AC CHARACTERISTICS
GND = 0 V; tr = tf v 2.5 ns; CL = 50 pF; RL = 500W; Tamb = â40_C to +85_C
SYMBOL
PARAMETER
WAVEFORM
VCC = 3.3V ±0.3V
MIN TYP1 MAX
tPHL/
tPLH
Propagation delay
nA to nY
Figure 1, 2
1.5
4.5
6.4
NOTE:
1. These typical values are at VCC = 3.3V and Tamb = 25°C.
LIMITS
VCC = 2.7V
MIN TYP MAX
1.5
5.0
7.5
VCC = 1.2V
TYP
18
UNIT
ns
AC WAVEFORMS
VM = 1.5 V at VCC w 2.7 V
VM = 0.5 S VCC at VCC < 2.7 V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VI
nA INPUT
VM
GND
VOH
tPHL
tPLH
nY OUTPUT
VM
VOL
SV00395
Figure 1. Input (nA) to output (nY) propagation delays.
APPLICATION INFORMATION
All values given are typical unless otherwise specified.
Note
to
Figure
7:
f+
1
T
[
0.8
1
RC
average
ICC
(mA) 2.0
1.5
positive-going
edge
negative-going
edge
1.0
0.5
TEST CIRCUIT
VI
PULSE
GENERATOR
VCC
D.U.T.
RT
VO
CL 50pF
S1
500â¦
2 x VCC
Open
GND
500â¦
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
V CC (V)
SV00445
Figure 3. Average ICC for LVC Schmitt-trigger devices;
linear change of Vi between 0.8 V to 2.0 V.
R
VCC
t 2.7V
2.7V â 3.6V
VI
VCC
2.7V
Test
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2 x VCC
GND
SY00003
Figure 2. Load circuitry for switching times.
C
SV00433
Figure 4. Relaxation oscillator using the LVC14.
1998 Apr 28
6
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese