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74F399 查看數據表(PDF) - Philips Electronics

零件编号产品描述 (功能)生产厂家
74F399 Quad 2-Port Register Philips
Philips Electronics Philips
74F399 Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
Philips Semiconductors
Registers
Product specification
74F398*,74F399
LOGIC SYMBOL – 74F398
4 5 7 6 14 15 17 16
I0a I1a I0b I1b I0c I1c I0d I1d
1
S
11
CP
Qa Qa Qb Qb Qc Qc Qd Qd
VCC = Pin 20
GND = Pin 10
2 3 9 8 12 13 19 18
SF00948
IEC/IEEE SYMBOL (IEEE/IEC) – 74F398
1
MUX
G1
11
C2
4
2
1, 2D
5
3
1, 2D
7
9
6
8
14
12
15
13
17
19
16
18
SF00949
FUNCTION TABLE
INPUTS
OUTPUTS
CP
S I0n I1n Qn
Qn (74F398 only)
"
l
l
X
L
H
"
l
h
X
H
L
"
h
X
l
L
H
"
h
X
h
H
L
H = High voltage level
h = High voltage level one setup time prior to the High-to-Low
clock transition
L = Low voltage level
l = Low voltage level one setup time prior to the High-to-Low
clock transition
X = Don’t care
" = Low-to-High clock transition
LOGIC SYMBOL – 74F399
3 4 6 5 11 12 14 13
I0a I1a I0b I1b I0c I1c I0d I1d
1
S
9
CP
Qa Qb Qc Qd
VCC = Pin 16
GND = Pin 8
2 7 10 15
SF00952
IEC/IEEE SYMBOL (IEEE/IEC) – 74F399
1
MUX
G1
9
C1
3
1, 2D
4
1, 2D
6
5
11
12
14
13
2
7
10
15
SF00953
* Discontinued part. Please see the Discontinued Products List..
1999 Jan 08
3
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