1/9
October 2002
s
3-STATE OUTPUTS
s
STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS
s
5V, 10V AND 15V PARAMETRIC RATINGS
s
INPUT LEAKAGE CURRENT
I
I
= 100nA (MAX) AT V
DD
= 18V T
A
= 25C
s
100% TESTED FOR QUIESCENT CURRENT
s
MEETS ALL REQUIREMENTS OF JEDEC
JESD13B "STANDARD SPECIFICATIONS
FOR DESCRIPTION OF B SERIES CMOS
DEVICES"
DESCRIPTION
HCF40257B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
HCF40257B is a Data Selector/Multiplexer
featuring three-state outputs which can interface
directly with and drive data lines of bus-oriented
systems.
HCF40257B
QUAD 2-LINE-TO-1-LINE DATA SELECTOR/MULTIPLEXER
PIN CONNECTION
ORDER CODES
PACKAGE
TUBE
T & R
DIP
HCF40257BEY
SOP
HCF40257BM1
HCF40257M013TR
DIP
SOP
HCF40257B
2/9
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
FUNCTIONAL DIAGRAM
TRUTH TABLE
X : Don"t Care
* : Level Change
PIN No
SYMBOL
NAME AND FUNCTION
2, 5, 11, 14
A1 to A4
Inputs
3, 6, 10, 13
B1 to B4
Inputs
4, 7, 9, 12
1Y to 4Y
3 State Multiplexer
Ouputs
1
INPUT
SELECT
Common Data Select
Input
15
OUTPUT
ENABLE
3 State Output Enable
8
V
SS
Negative Supply Voltage
16
V
DD
Positive Supply Voltage
INPUTS
OUTPUT
3-State Output
Disable
Select
A
B
D
H
X
X
X
Z
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
HCF40257B
3/9
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
All voltage values are referred to V
SS
pin voltage.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
DD
Supply Voltage
-0.5 to +22
V
V
I
DC Input Voltage
-0.5 to V
DD
+ 0.5
V
I
I
DC Input Current
10
mA
P
D
Power Dissipation per Package
200
mW
Power Dissipation per Output Transistor
100
mW
T
op
Operating Temperature
-55 to +125
C
T
stg
Storage Temperature
-65 to +150
C
Symbol
Parameter
Value
Unit
V
DD
Supply Voltage
3 to 20
V
V
I
Input Voltage
0 to V
DD
V
T
op
Operating Temperature
-55 to 125
C
HCF40257B
4/9
DC SPECIFICATIONS
The Noise Margin for both "1" and "0" level is: 1V min. with V
DD
=5V, 2V min. with V
DD
=10V, 2.5V min. with V
DD
=15V
Symbol
Parameter
Test Condition
Value
Unit
V
I
(V)
V
O
(V)
|I
O
|
(
A)
V
DD
(V)
T
A
= 25C
-40 to 85C
-55 to 125C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
I
L
Quiescent Current
0/5
5
0.02
1
30
30
A
0/10
10
0.02
2
60
60
0/15
15
0.02
4
120
120
0/20
20
0.04
20
600
600
V
OH
High Level Output
Voltage
0/5
<1
5
4.95
4.95
4.95
V
0/10
<1
10
9.95
9.95
9.95
0/15
<1
15
14.95
14.95
14.95
V
OL
Low Level Output
Voltage
5/0
<1
5
0.05
0.05
0.05
V
10/0
<1
10
0.05
0.05
0.05
15/0
<1
15
0.05
0.05
0.05
V
IH
High Level Input
Voltage
0.5/4.5
<1
5
3.5
3.5
3.5
V
1/9
<1
10
7
7
7
1.5/13.5
<1
15
11
11
11
V
IL
Low Level Input
Voltage
4.5/0.5
<1
5
1.5
1.5
1.5
V
9/1
<1
10
3
3
3
13.5/1.5
<1
15
4
4
4
I
OH
Output Drive
Current
0/5
2.5
<1
5
-1.36
-3.2
-1.15
-1.1
mA
0/5
4.6
<1
5
-0.44
-1
-0.36
-0.36
0/10
9.5
<1
10
-1.1
-2.6
-0.9
-0.9
0/15
13.5
<1
15
-3.0
-6.8
-2.4
-2.4
I
OL
Output Sink
Current
0/5
0.4
<1
5
0.44
1
0.36
0.36
mA
0/10
0.5
<1
10
1.1
2.6
0.9
0.9
0/15
1.5
<1
15
3.0
6.8
2.4
2.4
I
I
Input Leakage
Current
0/18
Any Input
18
10
-5
0.1
1
1
A
I
OZ
3-State Output
Leakage Current
0/18
Any Input
18
10
-4
0.4
12
12
A
C
I
Input Capacitance
Any Input
5
7.5
pF
HCF40257B
5/9
DYNAMIC ELECTRICAL CHARACTERISTICS (T
amb
= 25C, C
L
= 50pF, R
L
= 200K
, t
r
= t
f
= 20 ns)
TEST CIRCUIT
C
L
= 50pF or equivalent (includes jig and probe capacitance)
R
L
= 200K
R
T
= Z
OUT
of pulse generator (typically 50
)
Symbol
Parameter
Test Condition
Value (*)
Unit
V
DD
(V)
Min.
Typ.
Max.
t
PLH
t
PHL
Propagation Delay Time
Data Input to Output
5
150
300
ns
10
70
140
15
50
100
t
PLH
Select to Output
5
190
380
ns
10
85
170
15
65
130
t
PHL
Output Disable to Output
5
95
190
ns
10
50
100
15
40
80
t
TLH
t
THL
Transition Time
5
100
200
ns
10
50
100
15
40
80
TEST
SWITCH
t
PLH
, t
PHL
Open
t
PZL
, t
PLZ
V
DD
t
PZH
, t
PHZ
V
SS
PDF 
ZIP