參數(shù)資料
型號(hào)： 933714160652
廠商： NXP SEMICONDUCTORS
元件分類： 門電路
英文描述： HCT SERIES, QUAD 2-INPUT NOR GATE, PDSO14
封裝： SO-14
文件頁數(shù)： 5/5頁
文件大?。?/td> 31K
代理商： 933714160652
December 1990
5
Philips Semiconductors
Product specication
Quad 2-input NOR gate
74HC/HCT02
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: SSI
Notes 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.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
AC WAVEFORMS
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”.
INPUT
UNIT LOADCOEFFICIENT
nA, nB
1.50
SYMBOL
PARAMETER
Tamb (°C)
TEST CONDITIONS
74HCT
UNIT
VCC
(V)
WAVEFORMS
+25
40 to+85
40 to+125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
nA, nB to nY
11
19
24
29
ns
4.5
Fig.6
tTHL/ tTLH
output transition time
7
15
19
22
ns
4.5
Fig.6
Waveforms showing the input (nA, nB) to output (nY) propagation delays and the output transition times.
HC: VM = 50%; VI = GND to VCC
HCT: VM = 1.3 V; VI = GND to 3 V.
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