Motorola MC14578, MC145013, MC145017, MC145018, MC145012 Datasheet
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Motorola Master Selection Guide Analog and Interface Integrated Circuits4.10–1
Other Analog Circuits
In Brief . . .
Page
Timing Circuits 4.10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Singles 4.10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duals 4.10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multipliers 4.10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Linear Four-Quadrant Multipliers 4.10–2. . . . . . . . . . . . . .
Smoke Detectors (CMOS) 4.10–3. . . . . . . . . . . . . . . . . . . . . .
Package Overview 4.10–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other analog circuits are provided for special
applications with both bipolar and CMOS technologies.
These circuits range from the industry standard analog
timing circuits and multipliers to specialized CMOS smoke
detectors. These products provide key functions in a wide
range of applications, including data transmission,
commercial smoke detectors, and various industrial
controls.
Motorola Master Selection GuideAnalog and Interface Integrated Circuits 4.10–2
Timing Circuits
These highly stable timers are capable of producing
accurate time delays or oscillation. In the time delay mode of
operation, the time is precisely controlled by one external
resistor and capacitor. For a stable operation as an oscillator,
the free–running frequency and the duty cycle are both
accurately controlled with two external resistors and one
capacitor. The output structure can source or sink up to 200 mA
or drive TTL circuits. Timing intervals from microseconds
through hours can be obtained. Additional terminals are
provided for triggering or resetting if desired.
Singles
MC1455P1, D
TA = 0° to +70°C, Case 626, 751
MC1455BP1, D
TA = –40° to +85°C, Case 626, 751
Comp B
Comp A
7
V
CC
Threshold
Control
Voltage
Trigger
5
6
2
Gnd
1
3
Discharge
Output
5.0 k
R
S
Flip
Flop
Inhibit/
Reset
Q
8
5.0 k
5.0 k
Reset
4
Duals
MC3456P
TA = 0° to +70°C, Case 646
NE556N, D
TA = 0° to +70°C, Case 646, 751A
Multipliers
Linear Four–Quadrant Multipliers
Multipliers are designed for use where the output voltage is
a linear product of two input voltages. Typical applications
include: multiply, divide, square, root–mean–square, phase
detector, frequency doubler , balanced modulator/demodulator,
electronic gain control.
k =
1
10
–10
VX, INPUT VOLTAGE (V)
–10
–8.0
–4.0
–2.0
0
2.0
–6.0
4.0
6.0
8.0
10
, OUTPUT VOL TAGE (V)
O
V
+
X
Y
KXY
–8.0 –6.0 –4.0 –2.0 0 2.0 4.0 6.0 8.0 10
Multiplier Transfer Characteristics
MC1494P
TA = 0° to +70°C, Case 648
This device has all the necessary internal regulation and
references. The single–ended output is referenced to ground.
MC1495D, P
TA = 0° to +70°C, Case 751A, 646
Maximum versatility is assured by allowing the user to
select the level shift method.
MC1495BP
TA = –40° to +125°C, Case 646
Linearity and offset are actually tested over temperature.
This is an improved specification over previous versions.
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