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參數(shù)資料
| 型號： | 74HCT32 |
| 廠商： | System Logic Semiconductor Co., Ltd. |
| 英文描述： | 8-Bit Parallel-Out Serial Shift Registers 14-TSSOP -40 to 85 |
| 中文描述： | 四2輸入或門（高性能硅柵CMOS） |
| 文件頁數(shù)： | 5/6頁 |
| 文件大?。?/td> | 35K |
| 代理商： | 74HCT32 |
December 1990
5
Philips Semiconductors
Product specification
Quad 2-input OR gate
74HC/HCT32
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
I
CC
category: SSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
I
CC
category: SSI
Note 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.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HC
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
22
8
6
19
7
6
90
18
15
75
15
13
115
23
20
95
19
16
135
27
23
110
22
19
ns
2.0
4.5
6.0
2.0
4.5
6.0
Fig.7
t
THL
/ t
TLH
output transition time
ns
Fig.7
INPUT
UNIT LOAD COEFFICIENT
nA, nB
1.20
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
11
24
30
36
ns
4.5
Fig.7
t
THL
/ t
TLH
7
15
19
22
ns
4.5
Fig.7
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