National Semiconductor MM54C90, MM74C90 Technical data
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MM54C90/MM74C90 4-Bit Decade Counter
MM54C93/MM74C93 4-Bit Binary Counter
General Description
The MM54C90/MM74C90 decade counter and the
MM54C93/MM74C93 binary counter and complementary
MOS (CMOS) integrated circuits constructed with N- and
P-channel enhancement mode transistors. The 4-bit decade
counter can reset to zero or preset to nine by applying appropriate logic level on the R
Also, a separate flip-flop on the A-bit enables the user to
operate it as a divide-by-2, 5 or 10 frequency counter. The
4-bit binary counter can be reset to zero by applying high
logic level on inputs R
the A-bit enables the user to operate it as a divide-by-2, -8,
or -16 divider. Counting occurs on the negative going edge
of the input pulse.
Connection and Logic Diagrams
MM54C90/MM74C90
Dual-In-Line Package
01,R02,R91
and R02, and a separate flip-flop on
01
and R92inputs.
February 1988
All inputs are protected against static discharge damage.
Features
Y
Wide supply voltage range 3V to 15V
Y
Guaranteed noise margin 1V
Y
High noise immunity 0.45 VCC(typ.)
Y
Low power Fan out of 2
TTL compatiblity driving 74L
Y
The MM54C93/MM74C93 follows the MM54L93/
MM74L93 Pinout
MM54C93/MM74C93
Dual-In-Line Package
MM54C90/MM74C90 4-Bit Decade Counter
MM54C93/MM74C93 4-Bit Binary Counter
Top View
M54C90/MM74C90
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.
TL/F/5889
TL/F/5889– 2
Top View
Order Number MM54C90 or MM74C93
MM54C93/MM74C93
TL/F/5889– 1
TL/F/5889– 4
TL/F/5889– 3
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Voltage at Any Pin (Note 1)
Operating Temperature Range (TA)
MM54C90, MM54C93
MM74C90, MM74C93
b
0.3V to V
b
b
a
0.3V
CC
55§Ctoa125§C
40§Ctoa85§C
Power Dissipation (P
Dual-In-Line 700 mW
Small Outline 500 mW
Operating V
CC
Absolute Maximum V
Storage Temperature Range (T
Lead Temperature (TL)
(Soldering, 10 seconds) 260
)
D
Range 3V to 15V
CC
S
b
)
65§Ctoa150§C
DC Electrical Characteristics Min/Max limits apply across temperature range unless otherwise noted
Symbol Parameter Conditions Min Typ Max Units
CMOS TO CMOS
V
IN(1)
V
IN(0)
V
OUT(1)
V
OUT(0)
I
IN(1)
I
IN(0)
I
CC
Logical ‘‘1’’ Input Voltage V
Logical ‘‘0’’ Input Voltage V
Logical ‘‘1’’ Output Voltage V
Logical ‘‘0’’ Output Voltage V
Logical ‘‘1’’ Input Current V
Logical ‘‘0’’ Input Current V
Supply Current V
CMOS/LPTTL INTERFACE
V
IN(1)
V
IN(0)
V
OUT(1)
V
OUT(0)
Logical ‘‘1’’ Input Voltage
MM54C90, MM54C93 V
MM74C90, MM74C93 V
Logical ‘‘0’’ Input Voltage
MM54C90, MM54C93 V
MM74C90, MM74C93 V
Logical ‘‘1’’ Output Voltage
MM54C90, MM54C93 V
MM74C90, MM74C93 V
Logical ‘‘0’’ Output Voltage
MM54C90, MM54C93 V
MM74C90, MM74C93 V
OUTPUT DRIVE (See 54C/74C Family Characteristics Data Sheet) (Short Circuit Current)
I
SOURCE
I
SOURCE
I
SINK
I
SINK
Note 1: ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. Except for ‘‘Operating Temperature Range’’,
they are not meant to imply that the devices should be operated at these limits. The table of ‘‘Electrical Characteristics’’ provides conditions for actual device
operation.
Output Source Current V
(P-Channel) T
Output Source Current V
(P-Channel) T
Output Sink Current V
(N-Channel) T
Output Sink Current V
(N-Channel) T
e
5V 3.5 V
CC
e
10V 8.0 V
V
CC
e
5V 1.5 V
CC
e
10V 2.0 V
V
CC
e
eb
5V, I
CC
e
10V, I
V
CC
e
5V, I
CC
e
V
10V, I
CC
e
15V, V
CC
e
15V, V
CC
e
15V 0.05 300 mA
CC
e
4.5V V
CC
e
4.75V V
CC
e
4.5V 0.8 V
CC
e
4.75V 0.8 V
CC
e
4.5V, I
CC
e
4.75V, I
CC
e
4.5V, I
CC
e
4.75V, I
CC
e
5V, V
CC
e
25§C
A
e
10V, V
CC
e
25§C
A
e
5V, V
CC
e
25§C
A
e
10V, V
CC
e
25§C
A
10 mA 4.5 V
O
eb
10 mA 9.0 V
O
ea
10 mA 0.5 V
O
ea
10 mA 1.0 V
O
e
15V 0.005 1.0 mA
IN
e
0V
IN
eb
360 mA 2.4 V
O
eb
360 mA 2.4 V
O
eb
360 mA 0.4 V
O
eb
360 mA 0.4 V
O
e
0V
OUT
e
0V
OUT
e
V
OUT
CC
e
V
OUT
CC
CC
CC
b
b
b
1.0
b
b
1.75
8.0
b
0.005 mA
1.5 V
1.5 V
b
3.3 mA
b
15 mA
1.75 3.6 mA
8.0 16 mA
18V
C
§
AC Electrical Characteristics* T
e
A
25§C, C
e
50 pF, unless otherwise specified
L
Symbol Parameter Conditions Min Typ Max Units
t
pd0,tpd1
t
pd0,tpd1
t
pd0,tpd1
Propagation Delay Time V
to Q
from A
IN
Propagation Delay Time from V
A
IN
Propagation Delay Time from V
A
IN
A
to QB(MM54C93/MM74C93) V
to QB(MM54C90/MM74C90) V
e
5V 200 400 ns
CC
e
V
10 80 150 ns
CC
e
5V 450 850 ns
CC
e
10V 160 300 ns
CC
e
5V 450 800 ns
CC
e
10V 160 300 ns
CC
2
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