參數(shù)資料
型號(hào): 935188410112
廠商: NXP SEMICONDUCTORS
元件分類: 鎖存器
英文描述: HCT SERIES, LOW LEVEL TRIGGERED D LATCH, TRUE OUTPUT, PDSO16
封裝: SOT-403-1, TSSOP-16
文件頁數(shù): 15/15頁
文件大?。?/td> 172K
代理商: 935188410112
December 1990
9
Philips Semiconductors
Product specication
8-bit addressable latch
74HC/HCT259
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
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
D to Qn
23
39
49
59
ns
4.5
Fig.7
tPHL/ tPLH
propagation delay
An to Qn
25
41
51
62
ns
4.5
Fig.8
tPHL/ tPLH
propagation delay
LE to Qn
22
38
48
57
ns
4.5
Fig.6
tPHL
propagation delay
MR to Qn
23
39
49
59
ns
4.5
Fig.9
tTHL/ tTLH
output transition time
7
15
19
22
ns
4.5
Figs 6 and 7
tW
LE pulse width
LOW
19
11
24
29
ns
4.5
Fig.6
tW
MR pulse width
LOW
18
10
23
27
ns
4.5
Fig.9
tsu
set-up time
D to LE
17
10
21
26
ns
4.5
Fig.10
tsu
set-up time
An to LE
17
10
21
26
ns
4.5
Fig.11
th
hold time
D to LE
0
8
0
ns
4.5
Fig.10
th
hold time
An to LE
0
4
0
ns
4.5
Fig.11
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