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SN74HC14DR 数据手册 - TI（德州仪器）
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TI（德州仪器）
分类:
逻辑芯片
封装:
SOIC-14
描述:
TEXAS INSTRUMENTS SN74HC14DR 非门, HC系列, 施密特触发, 1输入, 5.2 mA, 2V至6V, SOIC-14
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SN74HC14DR数据手册
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SN54HCT14, SN74HCT14
HEX SCHMITT-TRIGGER INVERTERS
SCLS225E – JULY 1995 – REVISED JULY 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
T
A
= 25°C SN54HCT14 SN74HCT14
UNIT
PARAMETER
TEST
CONDITIONS
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
V
T+
Positive going
4.5 V 1.2 1.5 1.9 1.2 1.9 1.2 1.9
V
P
os
iti
ve-go
i
ng
threshold
5.5 V 1.4 1.7 2.1 1.4 2.1 1.4 2.1
V
V
T–
Negative going
4.5 V 0.5 0.9 1.2 0.5 1.2 0.5 1.2
V
N
ega
ti
ve-go
i
ng
threshold
5.5 V 0.6 1 1.4 0.6 1.4 0.6 1.4
V
∆V
T
Hysteresis
4.5 V 0.4 0.6 1.4 0.4 1.4 0.4 1.4
V
H
ys
t
eres
i
s
(V
T+
– V
T–
)
5.5 V 0.4 0.65 1.5 0.4 1.5 0.4 1.5
V
V
OH
I
OH
= –20 µA 4.5 V 4.4 4.49 4.4 4.4
V
V
OH
I
OH
= –4 mA 4.5 V 3.98 4.3 3.7 3.84
V
V
OL
I
OL
= 20 µA 4.5 V 0.001 0.1 0.1 0.1
V
V
OL
I
OL
= 4 mA 4.5 V 0.17 0.26 0.4 0.33
V
I
I
V
I
= V
CC
or GND 5.5 V ±0.1 ±1 ±1 µA
I
CC
V
I
= V
CC
or GND, I
O
= 0 5.5 V 2 40 20 µA
∆I
CC
†
One input at 0.5 V or 2.4 V,
Other inputs at GND or V
CC
5.5 V 0.2 2.4 3 2.9 mA
C
i
VI = V
CC
or GND 5 V 3 10 10 10 pF
†
This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or V
CC
.
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM TO
V
CC
T
A
= 25°C SN54HCT14 SN74HCT14
UNIT
PARAMETER
(INPUT) (OUTPUT)
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
d
A
Y
4.5 V 20 32 48 40
ns
t
pd
A
Y
5.5 V 18 30 45 38
ns
t
t
Y
4.5 V 7 15 22 19
ns
t
t
Y
5.5 V 6 14 20 17
ns
operating characteristics, T
A
= 25°C
PARAMETER TEST CONDITIONS TYP UNIT
C
pd
Power dissipation capacitance No load 10 pF
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