MB2821 Datasheet, PDF (2/9 Pages) NXP Semiconductors – Dual 10-bit D-type flip-flop; positive-edge trigger 3-State

Philips Semiconductors Advanced BiCMOS Products
Dual 10-bit D-type flip-flop;
positive-edge trigger (3-State)
Product specification
MB2821
PIN DESCRIPTION
PIN NUMBER
45, 44, 42, 41, 39, 38, 37, 36, 35, 34,
33, 32, 31, 29, 28, 27, 25, 24, 23, 22
48, 49, 50, 51, 1, 2, 3, 5, 6, 7, 8, 9,
10, 11, 12, 13, 15, 16, 18, 19
47, 20
46, 21
4, 17, 30, 43
14, 26, 40, 52
LOGIC SYMBOL (IEEE/IEC)
SYMBOL
1D0 – 1D9
2D0 – 2D9
1Q0 – 1Q9
2Q0 – 2Q9
1OE, 2OE
1CP, 2CP
GND
V_CC
Data inputs
FUNCTION
Data outputs
Output enable inputs (active-Low)
Clock pulse inputs (active rising edge)
Ground (0V)
Positive supply voltage
47
EN
46
C2
45
2D
1
48
44
49
42
50
41
51
39
1
38
2
37
3
36
5
35
6
34
7
20
EN
21
C2
33
2D
1
8
32
9
31
10
29
11
28
12
27
13
25
15
24
16
23
18
22
19
FUNCTION TABLE
INPUTS
INTERNAL
OUTPUTS
nOE
nCP
nDx
REGISTER
nQ0 – nQ9
L
↑
l
L
L
L
↑
h
H
H
L
↑
X
NC
NC
H
↑
X
NC
Z
H
↑
Dn
Dn
Z
H=
h=
L=
l=
NC=
X=
Z=
↑=
↑=
High voltage level
High voltage level one set-up time prior to the Low-to-High clock transition
Low voltage level
Low voltage level one set-up time prior to the Low-to-High clock transition
No change
Don’t care
High impedance “off” state
Low to High clock transition
Not a Low-to-High clock transition
OPERATING MODE
Load and read register
Hold
Disable outputs
August 24, 1993
2