MOTOROLA CMOS LOGIC DATA
1
MC14539B
The MC14539B data selector/multiplexer is constructed with MOS
P–channel a nd N –channel e nhancement m ode devices i n a single
monolithic structure. The circuit consists of two sections of four inputs each.
One input from each section is selected by the address inputs A and B. A
“high” on the Strobe input will cause the output to remain “low”.
This device finds primary application in signal multiplexing functions. It
permits multiplexing from N–lines to I–line, and can also perform parallel–to–
serial conversion. The Strobe input allows cascading of n–lines to n–lines.
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• Capable of Driving Two Low–Power TTL Loads or One Low–Power
Schottky TTL Load Over the Rated Temperature Range
MAXIMUM RATINGS* (Voltages Referenced to V
SS
)
Input or Output Voltage (DC or Transient)
Input or Output Current (DC or Transient),
per Pin
Power Dissipation, per Package†
Lead Temperature (8–Second Soldering)
_
C
*Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
Ceramic “L” Packages: – 12 mW/_C From 100_C To 125_C
TRUTH TABLE
Address
Inputs
Data Inputs
B A
X3
Y3
X2Y2X1
Y1
X0
Y0
X X X X X X 1 0
0 0 X X X 0 0 0
0 0 X X X 1 0 1
0 1 X X 0 X 0 0
0 1 X X 1 X 0 1
1 0 X 0 X X 0 0
1 0 X 1 X X 0 1
1 1 0 X X X 0 0
1 1 1 X X X 0 1
X = Don’t Care
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1995
REV 3
1/94
L SUFFIX
CERAMIC
CASE 620
ORDERING INFORMATION
MC14XXXBCP Plastic
MC14XXXBCL Ceramic
MC14XXXBD SOIC
TA = – 55° to 125°C for all packages.
P SUFFIX
PLASTIC
CASE 648
D SUFFIX
SOIC
CASE 751B
BLOCK DIAGRAM
14
2
1
6
5
4
3
15
10
11
12
13
9
7
Z
W
A
B
ST
X0
X1
X2
X3
A
B
ST
′
Y0
Y1
Y2
Y3
VDD = PIN 16
VSS = PIN 8
MOTOROLA CMOS LOGIC DATAMC14539B
2
ELECTRICAL CHARACTERISTICS (Voltages Referenced to V
SS
)
Min Max Min Typ # Max Min Max
Output Voltage “0” Level
Vin = VDD or 0
V
OL
5.0
10
15
—
—
—
0.05
0.05
0.05
—
—
—
0
0
0
0.05
0.05
0.05
—
—
—
0.05
0.05
0.05
Vdc
“1” Level
Vin = 0 or V
DD
V
OH
5.0
10
15
4.95
9.95
14.95
—
—
—
4.95
9.95
14.95
5.0
10
15
—
—
—
4.95
9.95
14.95
—
—
—
Vdc
Input Voltage “0” Level
(VO = 4.5 or 0.5 Vdc)
(VO = 9.0 or 1.0 Vdc)
(VO = 13.5 or 1.5 Vdc)
V
IL
5.0
10
15
—
—
—
1.5
3.0
4.0
—
—
—
2.25
4.50
6.75
1.5
3.0
4.0
—
—
—
1.5
3.0
4.0
Vdc
“1” Level
(VO = 0.5 or 4.5 Vdc)
(VO = 1.0 or 9.0 Vdc)
(VO = 1.5 or 13.5 Vdc)
V
IH
5.0
10
15
3.5
7.0
11
—
—
—
3.5
7.0
11
2.75
5.50
8.25
—
—
—
3.5
7.0
11
—
—
—
Vdc
Output Drive Current
(VOH = 2.5 Vdc) Source
(VOH = 4.6 Vdc)
(VOH = 9.5 Vdc)
(VOH = 13.5 Vdc)
I
OH
5.0
5.0
10
15
– 3.0
– 0.64
– 1.6
– 4.2
—
—
—
—
– 2.4
– 0.51
– 1.3
– 3.4
– 4.2
– 0.88
– 2.25
– 8.8
—
—
—
—
– 1.7
– 0.36
– 0.9
– 2.4
—
—
—
—
mAdc
(VOL = 0.4 Vdc) Sink
(VOL = 0.5 Vdc)
(VOL = 1.5 Vdc)
I
OL
5.0
10
15
0.64
1.6
4.2
—
—
—
0.51
1.3
3.4
0.88
2.25
8.8
—
—
—
0.36
0.9
2.4
—
—
—
mAdc
Input Current I
in
15 — ±0.1 — ±0.00001 ±0.1 — ±1.0 µAdc
Input Capacitance
(Vin = 0)
C
in
— — — — 5.0 7.5 — — pF
Quiescent Current
(Per Package)
I
DD
5.0
10
15
—
—
—
5.0
10
20
—
—
—
0.005
0.010
0.015
5.0
10
20
—
—
—
150
300
600
µAdc
Total Supply Current**†
(Dynamic plus Quiescent,
Per Package)
(CL = 50 pF on all outputs, all
buffers switching)
I
T
5.0
10
15
IT = (0.85 µA/kHz) f + I
DD
IT = (1.70 µA/kHz) f + I
DD
IT = (2.60 µA/kHz) f + I
DD
µAdc
#Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
**The formulas given are for the typical characteristics only at 25_C.
†To calculate total supply current at loads other than 50 pF:
IT(CL) = IT(50 pF) + (CL – 50) Vfk
where: IT is in µA (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.002.
This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However,
precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance
circuit. For proper operation, Vin and V
out
should be constrained to the range VSS ≤ (Vin or V
out
) ≤ VDD.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either VSS or VDD). Unused outputs must
be left open.