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參數(shù)資料
| 型號(hào)： | 933669040652 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 門電路 |
| 英文描述： | HC/UH SERIES, HEX 1-INPUT INVERT GATE, PDIP14 |
| 封裝： | SOT-27-1, DIP-14 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 160K |
| 代理商： | 933669040652 |
September 1993
5
Philips Semiconductors
Product specication
Hex inverting Schmitt trigger
74HC/HCT14
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”. Transfer characteristics are
given below.
Output capability: standard
ICC category: SSI
Note to HCT types
The value of additional quiescent supply current (
ICC) for a unit load of 1 is given in the family specifications.
To determine
ICC per input, multiply this value by the unit load coefficient shown in the table below.
Transfer characteristics for 74HCT
Voltages are referenced to GND (ground = 0 V)
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
INPUT
UNIT LOAD COEFFICIENT
nA
0.3
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
40 to +85
40 to +125
min.
typ.
max.
min.
max.
min.
max.
VT+
positive-going
threshold
1.2
1.4
1.41
1.59
1.9
2.1
1.2
1.4
1.9
2.1
1.2
1.4
1.9
2.1
V
4.5
5.5
Figs 6 and 7
VT
negative-going
threshold
0.5
0.6
0.85
0.99
1.2
1.4
0.5
0.6
1.2
1.4
0.5
0.6
1.2
1.4
V
4.5
5.5
Figs 6 and 7
VH
hysteresis
(VT+ VT)
0.4
0.56
0.60
0.4
0.4
V
4.5
5.5
Figs 6 and 7
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
40 to +85
40 to +125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
nA, to nY
20
34
43
51
ns
4.5
Fig.8
tTHL/ tTLH
output transition
time
7
15
19
22
ns
4.5
Fig.8
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