Philips Semiconductors
Product specification
74ABT16273
74ABTH16273
16-bit D-type flip-flop
LOGIC SYMBOL (IEEE/IEC)
PIN CONFIGURATION
1
2
48
1MR
1Q0
!Q1
CP
1
1MR
CP
R1
C1
R2
C2
48
24
25
47 1D0
46 1D1
3
2MR
2CP
GND
1Q2
1Q3
GND
1D2
4
45
44
5
47
46
44
43
41
40
38
37
36
2
3
1D
1
1D0
1D1
1D2
1D3
1D4
1D5
1D6
1D7
2D0
1Q0
!Q1
6
43 1D3
7
42
41
40
39
38
37
36
35
34
33
V
V
CC
CC
5
1Q2
1Q3
1Q4
1Q5
1Q6
1Q7
2Q0
8
1Q4
1Q5
1D4
1D5
6
9
8
GND
GND
10
11
12
13
14
15
16
9
1Q6
1Q7
2Q0
2Q1
GND
1D6
1D7
2D0
2D1
GND
11
12
13
2
2D
35
33
32
30
29
27
26
14
16
17
19
20
22
23
2D1
2D2
2D3
2D4
2D5
2D6
2D7
2Q1
2Q2
2Q3
2Q4
2Q5
2Q6
2Q7
2Q2
2D2
2Q3 17
32 2D3
18
19
31
30
V
V
CC
2Q4
CC
2D4
2Q5 20
29 2D5
21
22
23
24
28
27
26
25
GND
2Q6
GND
2D6
SH00053
2Q7
2D7
2CP
2MR
FUNCTION TABLE
SH00054
Inputs
Output
operating
mode
nMR
L
nCP
nDX
nQ0-nQ7
X
↑
X
h
I
L
H
L
Reset (clear)
Load “1”
H
H
↑
Load “0”
H
L
X
Q
Retain state
0
H = High voltage level
h
=
high voltage level one set-up time prior to the Low-to-High
clock transition
L
I
=
=
Low voltage level
Low voltage level one set-up time prior to the Low-to-High
clock transition
Don’t care
Low-to-High clock transition
X
↑
=
=
Q0 = Output as it was
3
1998 Feb 27