MB2841 Datasheet, PDF (2/10 Pages) NXP Semiconductors – Dual 10-bit bus interface latch 3-State

Philips Semiconductors Advanced BiCMOS Products
Dual 10-bit bus interface latch (3-State)
Product specification
MB2841
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
1LE, 2LE
GND
V_CC
Data inputs
FUNCTION
Data outputs
Output enable inputs (active-Low)
Latch enable inputs (active rising edge)
Ground (0V)
Positive supply voltage
47
EN
46
C1
20
EN
21
C1
45
1D
48
33
1D
8
44
49
32
9
42
50
31
10
41
51
29
11
39
1
28
12
38
2
27
13
37
3
25
15
36
5
24
16
35
6
23
18
34
7
22
19
FUNCTION TABLE
INPUTS
nOE
nLE
nDx
OUTPUTS
nQ0 – nQ9
L
H
L
L
L
H
H
H
L
↓
l
L
L
↓
h
H
H
X
X
Z
L
L
X
NC
H=
h=
L=
l=
↓=
NC=
X=
Z=
High voltage level
High voltage level one set-up time prior to the High-to-Low LE transition
Low voltage level
Low voltage level one set-up time prior to the High-to-Low LE transition
High-to-Low LE transition
No change
Don’t care
High impedance “off” state
OPERATING MODE
Transparent
Latched
High impedance
Hold
August 24, 1993
2