參數(shù)資料
型號(hào): 74HC132
廠商: NXP Semiconductors N.V.
英文描述: Quad 2-input NAND Schmitt trigger
中文描述: 四2輸入與非施密特觸發(fā)器
文件頁數(shù): 5/8頁
文件大?。?/td> 70K
代理商: 74HC132
September 1993
5
Philips Semiconductors
Product specification
Quad 2-input NAND Schmitt trigger
74HC/HCT132
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
. Transfer characteristics are
given below.
Output capability: standard
I
CC
category: SSI
Notes to HCT types
The value of additional quiescent supply current (
I
CC
) for a unit load of 1 is given in the family specifications.
To determine
I
CC
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; t
r
= t
f
= 6 ns; C
L
= 50 pF
INPUT
UNIT LOAD COEFFICIENT
nA, nB
0.3
SYMBOL PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
WAVEFORMS
+
25
40 to
+
85
40 to
+
125
min.
typ.
max.
min.
max.
min.
max.
V
T
+
positive-going threshold
1.2
1.4
1.41
1.59
0.85
0.99
0.56
0.60
1.9
2.1
1.2
1.4
1.2
1.4
0.5
0.6
0.4
0.4
1.9
2.1
1.2
1.4
1.2
1.4
0.5
0.6
0.4
0.4
1.9
2.1
1.2
1.4
V
4.5
5.5
4.5
5.5
4.5
5.5
Figs 6 and 7
V
T
negative-going threshold 0.5
V
Figs 6 and 7
0.6
0.4
0.4
V
H
hysteresis (V
T
+
V
T
)
V
Figs 6 and 7
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
WAVEFORMS
+
25
40 to
+
85
40 to
+
125
min.
typ.
max.
min.
max.
min.
max.
t
PHL
/ t
PLH
propagation delay
nA, nB to nY
output transition time
20
33
41
50
ns
4.5
Fig.13
t
THL
/ t
TLH
7
15
19
22
ns
4.5
Fig.13
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