參數(shù)資料
型號(hào): 933669930652
廠商: NXP SEMICONDUCTORS
元件分類: 編、解碼器及復(fù)用、解復(fù)用
英文描述: HCT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16
封裝: SOT-38-1, DIP-16
文件頁(yè)數(shù): 8/11頁(yè)
文件大?。?/td> 133K
代理商: 933669930652
September 1993
6
Philips Semiconductors
Product specication
Dual 2-to-4 line decoder/demultiplexer
74HC/HCT139
DC CHARACTERISTICS FOR HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
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; tf = tf = 6 ns; CL = 50 pF
INPUT
UNIT LOAD
COEFFICIENT
1An
2An
nE
0.70
1.35
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
40 to +85
40 to +125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
nAn to Yn
16
34
43
51
ns
4.5
Fig.6
tPHL/ tPLH
propagation delay
nE to nYn
16
34
43
51
ns
4.5
Fig.7
tTHL/ tTLH
output transition
time
7
15
19
22
ns
4.5
Figs 6 and 7
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