HCF4556B
DUAL BINARY TO 1 OF 4 DECODER/DEMULTIPLEXER
OUTPUT LOW ON SELECT
■ EXPANDABLE WITH MULTIPLE PACKAGES
■ STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS
■ QUIESCENT CURRENT SPECIFIED UP TO
20V
■ 5V, 10V AND 15V PARAMETRIC RAT INGS
■ INPUT LEAKAGE CURRENT
I
= 100nA (MAX) AT VDD = 18V TA = 25°C
I
■ 100% TESTED FOR QUIESCENT CURRENT
■
MEETS ALL REQUIREMENTS OF JEDEC
JESD13B " STANDARD SPECIF ICATIONS
FOR DESCRIPTI ON OF B SERI ES CMOS
DEVICES"
DESCRIPTION
The HCF4556B is a m onolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
The HCF4556B is a dual 1 of 4 decoder/
demultiplexer. Each decoder has two select inputs
(A and B), an Enabl e input (E
), and four mutually
DIP SOP
ORDER CODES
PACKAGE TUBE T & R
DIP HCF4556BEY
SOP HCF4556BM1 HCF4556M013TR
exclusive outputs. O n the HCF4556B the ou tputs
are low on select. When the Enable input is high,
the outputs is high regardless of the state of the
select inputs A and B.
PIN CONNECTION
1/9September 2001
HCF4556B
IINPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
2, 3 A, B Select Inputs (1/2 of dual)
1E
4, 5, 6, 7 Q0
14, 13 A, B Select Inputs (1/2 of dual)
15 E
12, 1 1, 10, 9 Q0
8
16
TRUTH TABLE
INPUTS ENABLE SELECT OUTPUTS
to Q3 Outputs (1/2 of dual)
to Q3 Outputs (1/2 of dual)
V
SS
V
DD
Enable Input (1/2 of dual)
Enable Input (1/2 of dual)
Negative Supply Voltage
Positive Supply Voltage
E
LLLHHHL
LLHHHLH
LHLHLHH
LHHLHHH
HXXHHHH
X : Don’t Care
BAQ3Q2 Q1 Q0
FUNCTIONAL DIAGRAM
2/9
LOGIC DIAGRAM
HCF4556B
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
P
Supply Voltage
DD
DC Input Voltage -0.5 to VDD + 0.5
I
I
DC Input Current
I
Power Dissipation per Package 200 mW
D
-0.5 to +22 V
± 10 mA
V
Power Dissipation per Output Transistor 100 mW
T
T
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 ar e referred t o V
Operating Temperature
op
Storage Temperature
stg
pin voltage.
SS
-55 to +125 °C
-65 to +150 °C
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
V
T
Supply Voltage
DD
Input Voltage 0 to V
I
Operating Temperature
op
3 to 20 V
DD
-55 to 125 °C
V
3/9
HCF4556B
DC SPECIFICATIONS
Test Condition Value
T
Symbol Parameter
I
Quiescent Current 0/5 5 0.04 5 150 150
L
V
(V)
V
I
(V)
|I
|
O
O
(µA)
V
DD
(V)
= 25°C
A
Min. Typ. Max. Min. Max. Min. Max.
0/10 10 0.04 10 300 300
0/15 15 0.04 20 600 600
0/20 20 0.08 100 3000 3000
V
High Level Output
OH
Voltage
0/5 <1 5 4.95 4.95 4.95
0/15 <1 15 14.95 14.95 14.95
Low Level Output
V
OL
Voltage
5/0 <1 5 0.05 0.05 0.05
15/0 <1 15 0.05 0.05 0.05
High Level Input
V
IH
Voltage
0.5/4.5 <1 5 3.5 3.5 3.5
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
13.5/1.5 <1 15 4 4 4
I
OH
Output Drive
Current
0/5 2.5 <1 5 -1.36 -3.2 -1.1 -1.1
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
0/15 1.5 <1 15 3.0 6.8 2.4 2.4
Input Leakage
I
I
Current
C
Input Capacitance
I
The Noi se Margin for both "1" and "0 " le vel is: 1V min. wi th VDD=5V, 2V min. with VDD=10V, 2.5V min. with VDD=15V
0/18 Any Input 18
Any Input 5 7.5 pF
±10
-5
-40 to 85°C -55 to 125°C
±0.1 ±1 ±1 µA
Unit
µA
V0/10 <1 10 9.95 9.95 9.95
V10/0 <1 10 0.05 0.05 0.05
V1/9 <1 10 7 7 7
V9/1 <1 10 3 3 3
mA
mA0/10 0.5 <1 10 1.1 2.6 0.9 0.9
DYNAMIC ELECTRICAL CHARACTERISTICS (T
Symbol Parameter
t
PLH tPHL
t
PLH tPHL
t
TLH tTHL
(*) Typical temperat ure coeffici ent for all VDD value is 0.3 %/°C.
Propagation Delay Time 5
Propagation Delay Time 5
Transition Time 5 100 200
4/9
(V)
V
DD
15 70 140
15 65 130
15 40 80
= 25°C, CL = 50pF, RL = 200KΩ, tr = tf = 20 ns)
amb
Test Condition Value (*) Unit
Min. Typ. Max.
220 440
A or B Input to any Output
ns10 95 190
200 400
Input to any Output
E
ns10 85 170
ns10 50 100
TYPICAL APPLICATIONS
1 OF 16 DECODER USING HCF4555B AND HCF4556B
TRUTH TABLE
INPUTS Q OUTPUTS
EDCBA0 123456789101112131415
000001000000000000000
000010100000000000000
000100010000000000000
000110001000000000000
001000000100000000000
001010000010000000000
001100000001000000000
001110000000100000000
010000000000010000000
010010000000001000000
010100000000000100000
010110000000000010000
011000000000000001000
011010000000000000100
011100000000000000010
011110000000000000001
1XXXX0000000000000000
HCF4556B
TEST CIRCUIT
CL = 50pF or equivalent (includes jig and p robe capacit ance)
= 200KΩ
R
L
= Z
R
of pulse generator (typically 50Ω)
T
OUT
5/9
HCF4556B
WAVEFORM 1 : PROPAGATION DELAY TIMES (INPUT TO Q3 OUTPUT) (f=1MHz; 50% duty cycle)
WAVEFORM 2 : PROPAGATION DELAY TIMES (E
INPUT TO Q3 OUTPUT) (f=1MHz; 50% duty cycle)
6/9
HCF4556B
Plastic DIP-16 (0.25) MECHANICAL DATA
mm. inch
DIM.
MIN. TYP MAX. MIN. TYP. MAX.
a1 0.51 0.020
B 0.77 1.65 0.030 0.065
b 0.5 0.020
b1 0.25 0.010
D 20 0.787
E 8.5 0.335
e 2.54 0.100
e3 17.78 0.700
F 7.1 0.280
I 5.1 0.201
L 3.3 0.130
Z 1.27 0.050
P001C
7/9
HCF4556B
SO-16 MECHANICAL DATA
DIM.
A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 1.65 0.064
b 0.35 0.46 0.013 0.018
b1 0.19 0.25 0.007 0.010
C 0.5 0.019
c1 45° (typ.)
D 9.8 10 0.385 0.393
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 8.89 0.350
F 3.8 4.0 0.149 0.157
G 4.6 5.3 0.181 0.208
L 0.5 1.27 0.019 0.050
M 0.62 0.024
S8° (max.)
MIN. TYP MAX. MIN. TYP. MAX.
mm. inch
8/9
PO13H
HCF4556B
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