MM74C221 Monostable Multivibrator Datasheet

MM74C221 Datasheet, PDF, Equivalent


Part Number

MM74C221

Description

Dual Monostable Multivibrator

Manufacture

National

Total Page 6 Pages
Datasheet
Download MM74C221 Datasheet


MM74C221
February 1988
MM54C221 MM74C221 Dual Monostable Multivibrator
General Description
The MM54C221 MM74C221 dual monostable multivibrator
is a monolithic complementary MOS integrated circuit Each
multivibrator features a negative-transition-triggered input
and a positive-transition-triggered input either of which can
be used as an inhibit input and a clear input
Once fired the output pulses are independent of further
transitions of the A and B inputs and are a function of the
external timing components CEXT and REXT The pulse
width is stable over a wide range of temperature and VCC
Pulse stability will be limited by the accuracy of external
timing components The pulse width is approximately de-
fined by the relationship tW(OUT) CEXT REXT For further
information and applications see AN-138
Features
Y Wide supply voltage range
Y Guaranteed noise margin
Y High noise immunity
Y Low power TTL compatibility
4 5V to 15V
1 0V
0 45 VCC (typ )
fan out of 2
driving 74L
Connection Diagrams
Timing Component
Dual-In-Line Package
TL F 5904 – 1
Truth Table
Clear
L
X
X
H
H
Inputs
A
X
H
X
L
v
B
X
X
L
u
H
Top View
TL F 5904 – 2
Order Number MM54C221 or MM74C221
Outputs
QQ
LH
LH
LH
H e High level
L e Low level
u e Transition from low to high
v e Transition from high to low
e One high level pulse
e One low level pulse
X e Irrelevant
C1995 National Semiconductor Corporation TL F 5904
RRD-B30M105 Printed in U S A

MM74C221
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Voltage at Any Pin
Operating Temperature Range
MM54C221
MM74C221
b0 3V to VCC a 0 3V
b55 C to a125 C
b40 C to a85 C
Storage Temperature Range
b65 C to a150 C
Power Dissipation
Dual-In-Line
Small Outline
Operating VCC Range
Absolute Maximum VCC
REXT t 80 VCC (X)
Lead Temperature (Soldering 10 seconds)
700 mW
500 mW
4 5V to 15V
18V
260 C
DC Electrical Characteristics Max min limits apply across temperature range unless otherwise noted
Symbol
Parameter
Conditions
Min
CMOS to CMOS
VIN(1)
Logical ‘‘1’’ Input Voltage
VIN(0)
Logical ‘‘0’’ Input Voltage
VOUT(1) Logical ‘‘1’’ Output Voltage
VOUT(0) Logical ‘‘0’’ Output Voltage
IIN(1)
IIN(0)
ICC
Logical ‘‘1’’ Input Current
Logical ‘‘0’’ Input Current
Supply Current (Standby)
VCC e 5V
VCC e 10V
VCC e 5V
VCC e 10V
VCC e 5V IO e b10 mA
VCC e 10V IO e b10 mA
VCC e 5V IO e a10 mA
VCC e 10V IO e a10 mA
VCC e 15V VIN e 15V
VCC e 15V VIN e 0V
VCC e 15V REXT e %
Q1 Q2 e Logic ‘‘0’’ (Note 3)
35
80
45
90
b1 0
ICC Supply Current
(During Output Pulse)
VCC e 15V Q1 e Logic ‘‘1’’
Q2 e Logic ‘‘0’’ (Figure 4)
VCC e 5V Q1 e Logic ‘‘1’’
Q2 e Logic ‘‘0’’ (Figure 4)
Leakage Current at R CEXT Pin
CMOS LPTTL Interface
VCC e 15V VCEXT e 5V
VIN(1)
Logical ‘‘1’’ Input Voltage
54C VCC e 4 5V
74C VCC e 4 75V
VCC b 1 5
VCC b 1 5
VIN(0)
Logical ‘‘0’’ Input Voltage
54C VCC e 4 5V
74C VCC e 4 75V
VOUT(1) Logical ‘‘1’’ Output Voltage
54C VCC e 4 5V IO e b360 mA
74C VCC e 4 75V IO e b360 mA
24
24
VOUT(0) Logical ‘‘0’’ Output Voltage
54C VCC e 4 5V IO e 360 mA
74C VCC e 4 75V IO e 360 mA
Output Drive (See 54C 74C Family Characteristics Data Sheet) (Short Circuit Current)
ISOURCE
ISOURCE
ISINK
ISINK
Output Source Current
(P-Channel)
Output Source Current
(P-Channel)
Output Sink Current
(N-Channel)
Output Sink Current
(N-Channel)
VCC e 5V
TA e 25 C VOUT e 0V
VCC e 10V
TA e 25 C VOUT e 0V
VCC e 5V
TA e 25 C VOUT e VCC
VCC e 10V
TA e 25 C VOUT e VCC
b1 75
b8
1 75
8
Typ
0 005
b0 005
0 05
15
2
0 01
Max
15
20
05
1
10
300
30
08
08
04
04
Units
V
V
V
V
V
V
V
V
mA
mA
mA
mA
mA
mA
V
V
V
V
V
V
V
V
mA
mA
mA
mA
2


Features MM54C221 MM74C221 Dual Monostable Multiv ibrator February 1988 MM54C221 MM74C2 21 Dual Monostable Multivibrator Genera l Description The MM54C221 MM74C221 dua l monostable multivibrator is a monolit hic complementary MOS integrated circui t Each multivibrator features a negativ e-transition-triggered input and a posi tive-transition-triggered input either of which can be used as an inhibit inpu t and a clear input Once fired the outp ut pulses are independent of further tr ansitions of the A and B inputs and are a function of the external timing comp onents CEXT and REXT The pulse width is stable over a wide range of temperatur e and VCC Pulse stability will be limit ed by the accuracy of external timing c omponents The pulse width is approximat ely defined by the relationship tW(OUT) CEXT REXT For further information and applications see AN-138 Features Y Y Y Y Wide supply voltage range Guarantee d noise margin High noise immunity Low power TTL compatibility 4 5V to 15V 1 0V 0 45 VCC (typ ) fan o.
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