參數(shù)資料
型號： 74AHCT2G32
廠商： NXP Semiconductors N.V.
英文描述： Dual 2-input OR gate
中文描述： 雙2輸入或門
文件頁數(shù)： 9/17頁
文件大小： 90K
代理商： 74AHCT2G32
9397 750 13735
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data sheet
Rev. 02 — 18 October 2004
9 of 17
Philips Semiconductors
74AHC2G08; 74AHCT2G08
Dual 2-input AND gate
12. Dynamic characteristics
[1]
Typical values are measured at V
CC
= 3.3 V.
Typical values are measured at V
CC
= 5.0 V.
C
PD
is used to determine the dynamic power dissipation (P
D
in
μ
W).
P
D
= C
PD
×
V
CC2
×
f
i
×
N +
Σ
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in Volts;
N = number of inputs switching;
Σ
(C
L
×
V
CC2
×
f
o
) = sum of the outputs.
The condition is V
I
= GND to V
CC
.
[2]
[3]
[4]
Table 10:
At recommended operating conditions; voltages are referenced to GND (ground = 0 V); t
r
= t
f
≤
3.0 ns; see
Figure 7
.
Symbol
Parameter
Conditions
T
amb
= 25
°
C
t
PHL
, t
PLH
propagation delay
nA and nB to nY
V
CC
= 3.0 V to 3.6 V; C
L
= 15 pF
V
CC
= 4.5 V to 5.5 V; C
L
= 15 pF
V
CC
= 3.0 V to 3.6 V; C
L
= 50 pF
V
CC
= 4.5 V to 5.5 V; C
L
= 50 pF
C
PD
power dissipation
capacitance
T
amb
=
40
°
C to +85
°
C
t
PHL
, t
PLH
propagation delay
nA and nB to nY
V
CC
= 3.0 V to 3.6 V; C
L
= 15 pF
V
CC
= 4.5 V to 5.5 V; C
L
= 15 pF
V
CC
= 3.0 V to 3.6 V; C
L
= 50 pF
V
CC
= 4.5 V to 5.5 V; C
L
= 50 pF
T
amb
=
40
°
C to +125
°
C
t
PHL
, t
PLH
propagation delay
nA and nB to nY
V
CC
= 3.0 V to 3.6 V; C
L
= 15 pF
V
CC
= 4.5 V to 5.5 V; C
L
= 15 pF
V
CC
= 3.0 V to 3.6 V; C
L
= 50 pF
V
CC
= 4.5 V to 5.5 V; C
L
= 50 pF
Dynamic characteristics type 74AHC2G08
Min
Typ
Max
Unit
see
Figure 6
[1]
-
4.6
3.2
6.5
4.6
17
8.8
5.9
12.3
7.9
-
ns
ns
ns
ns
pF
[2]
-
[1]
-
[2]
-
C
L
= 50 pF; f
i
= 1 MHz
[3] [4]
-
see
Figure 6
1.0
1.0
1.0
1.0
-
-
-
-
10.5
7.0
14.0
9.0
ns
ns
ns
ns
see
Figure 6
1.0
1.0
1.0
1.0
-
-
-
-
12.0
8.0
16.0
10.5
ns
ns
ns
ns
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