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參數(shù)資料
| 型號： | 933756860652 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 門電路 |
| 英文描述： | HC/UH SERIES, DUAL 4-INPUT AND GATE, PDIP14 |
| 封裝： | DIP-14 |
| 文件頁數(shù)： | 6/6頁 |
| 文件大小： | 33K |
| 代理商： | 933756860652 |
December 1990
6
Philips Semiconductors
Product specication
Dual 4-input AND gate
74HC/HCT21
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: SSI
Note 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 LOAD COEFFICIENT
nA, nB,
1.50
nC, nD
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 nC, nD to nY
15
27
34
41
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, nC, nD) to output (nY) propagation delays and the output transition
times.
(1) HC: VM = 50%; VI = GND to VCC.
HCT: VM = 1.3 V; VI = GND to 3 V.
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