MB2052 Datasheet, PDF (2/7 Pages) NXP Semiconductors – Dual octal registered transceiver 3-State

Philips Semiconductors Advanced BiCMOS Products
Dual octal registered transceiver (3-State)
Product specification
MB2052
LOGIC SYMBOL (IEEE/IEC)
49
EN1
44
EN2
46
EN3
47
EN4
48
C5
45
C6
18
EN1
23
EN2
21
EN3
20
EN4
19
C5
22
C6
50
2, 3, 6 1, 4, 5
42
51
41
8
2, 3, 6 1, 4, 5
33
9
32
1
39
10
31
2
38
11
29
3
37
12
28
5
36
13
27
6
35
15
25
7
34
16
24
PIN DESCRIPTION
PIN NUMBER
48, 45
19, 22
49, 44
18, 23
50, 51, 1, 2, 3, 5, 6, 7
8, 9, 10, 11, 12, 13, 15, 16
42, 41, 39, 38, 37, 36, 35, 34
33, 32, 31, 29, 28, 27, 25, 24
47, 46
20, 21
4, 17, 30, 43
14, 26, 40, 52
SYMBOL
1CPAB / 1CPBA
2CPAB / 2CPBA
1CEAB / 1CEBA
2CEAB / 2CEBA
1A0 – 1A7
2A0 – 2A7
1B0 – 1B7
2B0 – 2B7
1OEAB / 1OEBA
2OEAB / 2OEBA
GND
V_CC
NAME AND FUNCTION
Clock input A to B / Clock input B to A
Clock enable input A to B / Clock enable input B to A
Data inputs/outputs (A side)
Data inputs/outputs (B side)
Output enable inputs
Ground (0V)
Positive supply voltage
FUNCTION TABLE for Register nAx or nBx
INPUTS
nAx or nBx
nCPXX
nCEXX
X
X
H
L
↑
L
H
↑
L
H = High voltage level
L = Low voltage level
↑ = Low-to-High transition
X = Don’t care
XX = AB or BA
NC= No change
INTERNAL
Q
NC
L
H
Hold data
Load data
OPERATING
MODE
August 23, 1993
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