CD74ACT14_14 Datasheet, PDF (3/12 Pages) Texas Instruments – Hex Schmitt-trigger inverter

CD74ACT14
HEX SCHMITTĆTRIGGER INVERTER
SCHS319A − NOVEMBER 2002 − REVISED NOVEMBER 2004
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
MIN MAX
−55°C
TO 125°C
MIN MAX
−40°C
TO 85°C
MIN MAX
UNIT
VT+
Positive-going
threshold
5V
1.4
2 1.4
2 1.4
2V
VT−
Negative-going
threshold
5V
0.8 1.3 0.8 1.3 0.8 1.3 V
∆VT
Hysteresis
(VT+ − VT−)
VOH
VI = VT+
VOL
II
ICC
VI = VT−
VI = VCC or GND
VI = VCC or GND,
IOH = −50 µA
IOH = −24 mA
IOH = −50 mA†
IOH = −75 mA†
IOL = 50 µA
IOL = 24 mA
IOL = 50 mA†
IOL = 75 mA†
IO = 0
5V
4.5 V
4.5 V
5.5 V
5.5 V
4.5 V
4.5 V
5.5 V
5.5 V
5.5 V
5.5 V
0.4
0.4
0.4
V
4.4
4.4
4.4
3.94
3.7
3.8
V
3.85
3.85
0.1
0.1
0.1
0.36
0.5
0.44
V
1.65
1.65
±0.1
±1
±1 µA
4
80
40 µA
DICC‡
VI = VCC − 2.1 V
4.5 V to 5.5 V
2.4
3
2.8 mA
Ci
10
10
10 pF
† _{Test one output at a time, not exceeding 1-second duration. Measurement is made by forcing indicated current and measuring voltage to minimize}
power dissipation. Test verifies a minimum 50-Ω transmission-line drive capability at 85°C and 75-Ω transmission-line drive capability at 125°C.
‡ _{Additional quiescent supply current per input pin, TTL inputs high, 1 unit load}
ACT INPUT LOAD TABLE
INPUT
A
UNIT LOAD
0.21
Unit load is ∆ICC limit specified in
electrical characteristics table
(e.g., 2.4 mA at 25°C).
switching characteristics over recommended operating free-air temperature range,
V_CC = 5 V " 0.5 V, C_L = 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
−55°C
TO 125°C
MIN MAX
−40°C
TO 85°C
MIN MAX
UNIT
tPLH
A
tPHL
3.6 14.5 3.7 13.2
Y
ns
2.4 9.5 2.4 8.6
operating characteristics, V_CC = 5 V, T_A = 25°C
PARAMETER
Cpd
Power dissipation capacitance
TYP UNIT
45
pF
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