MC14028BCP ON Semiconductor, MC14028BCP Datasheet - Page 4

• Manufacturer Part Number: MC14028BCP
• Manufacturer: ON Semiconductor

Specifications of MC14028BCP

• Logical Function: Decoder/Demux
• Logic Family: 4000B
• Number Of Elements: 1
• Polarity: Non-Inverting
• Number Of Inputs: 4
• Number Of Outputs: 10
• Output Type: Open Drain
• Propagation Delay Time: 600ns
• Package Type: PDIP
• High Level Output Current: -4.2mA
• Low Level Output Current: 4.2mA
• Operating Supply Voltage (typ): 3.3/5/9/12/15V
• Operating Supply Voltage (max): 18V
• Operating Supply Voltage (min): 3V
• Operating Temp Range: -55C to 125C
• Operating Temperature Classification: Military
• Mounting: Through Hole
• Pin Count: 16
• Quiescent Current: 20uA
• Technology: CMOS
• Lead Free Status / Rohs Status: Not Compliant

MC14028B and other CMOS Integrated Circuits. The
circuit in Figure 2 converts any 4−bit code to a decimal or
hexadecimal code. The accompanying table shows the input
binary combinations, the associated “output numbers” that
go “high” when selected, and the “redefined output
numbers” needed for the proper code. For example: For the
combination DCBA = 0111 the output number 7 is redefined
for the 4−bit binary, 4−bit gray, excess−3, or excess−3 gray
codes as 7, 5, 4, or 2, respectively. Figure 3 shows a 6−bit
binary 1−of−64 decoder using nine MC14028B circuits and
two MC14069UB inverters.
such as, neon readouts or incandescent projection indicators
as shown in Figure 4.
Inputs B, C, and D switching
in respect to a BCD code.
Inputs A, B, and D low.
Expanded decoding can be performed by using the
The MC14028B can be used in decimal digit displays,
APPLICATIONS INFORMATION
A
B
C
D
INPUT A
INPUT C
Q4
20 ns
10%
t
10%
PLH
Figure 1. Dynamic Signal Waveforms
10%
90%
90%
20 ns
http://onsemi.com
LOGIC DIAGRAM
90%
50%
t
TLH
MC14028B
50%
1/f
4
20 ns
20 ns
50%
Figure 2. Code Conversion Circuit and Truth Table
t
PHL
t
THL
Q9
D
15
MC14028B
V
V
V
V
V
V
C
DD
SS
DD
SS
OH
OL
B
All outputs connected to respective
C
OUTPUT NUMBERS
L
A
Q0
loads. f in respect to a system clock.
−8
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q9
D
D
15
MC14028B
INPUTS
C
C
B
B
A
A
Q0
−0