參數(shù)資料
型號: HD74HC149FP
元件分類: 算術(shù)邏輯單元
英文描述: HC/UH SERIES, 8-BIT ENCODER, PDSO20
封裝: FP-20DA
文件頁數(shù): 5/9頁
文件大?。?/td> 58K
代理商: HD74HC149FP
HD74HC149
5
AC Characteristics (C
L = 50 pF, Input tr = tf = 6 ns)
Ta = 25
°C
Ta = –40 to
+85
°C
Item
Symbol
V
CC (V)
Min Typ Max Min
Max
Unit
Test Conditions
Propagation delay t
PLH
2.0
140 —
175
ns
0 - 7 to Y,
P
time
t
PHL
4.5
16
28
35
6.0
24
30
t
PLH
2.0
155 —
195
ns
E to Y, P
t
PHL
4.5
13
31
39
6.0
26
33
Output rise/fall
t
TLH
2.0
75
95
ns
time
t
THL
4.5
5
15
19
6.0
13
16
Input capacitance
Cin
5
10
10
pF
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