參數(shù)資料
型號: 74HCT08
廠商: NXP Semiconductors N.V.
英文描述: Quad 2-input AND gate(四2輸入與門)
中文描述: 四2輸入與門(四2輸入與門)
文件頁數(shù): 5/5頁
文件大?。?/td> 33K
代理商: 74HCT08
December 1990
5
Philips Semiconductors
Product specification
Quad 2-input AND gate
74HC/HCT08
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
AC WAVEFORMS
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
.
INPUT
UNIT LOAD COEFFICIENT
nA, nB
0.6
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
14
24
30
36
ns
4.5
Fig.7
t
THL
/ t
TLH
7
15
19
22
ns
4.5
Fig.7
Fig.7 Waveforms showing the input (nA, nB) to output (nY) propagation delays and the output transition times.
(1) HC : V
M
= 50%; V
I
= GND to V
.
HCT: V
M
= 1.3 V; V
I
= GND to 3 V.
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