Philips Semiconductors
Product specification
Dual 4-bit binary ripple counter
74LV393
FEATURES
•
Optimized for Low Voltage applications: 1.0 to 3.6V
•
Accepts TTL input levels between V
CC
= 2.7V and V
CC
= 3.6V
•
Typical V
OLP
(output ground bounce)
t
0.8V @ V
CC
= 3.3V,
•
Typical V
OHV
(output V
OH
undershoot)
u
2V @ V
CC
= 3.3V,
•
Two 4-bit binary counters with individual clocks
•
Divide-by any binary module up to 28 in one package
•
Two master resets to clear each 4-bit counter individually
•
Output capability: standard
•
I
CC
category: MSI
QUICK REFERENCE DATA
GND = 0V; T
amb
= 25°C; t
r
= t
f
v2.5
ns
SYMBOL
t
PHL
/t
PLH
f
max
C
I
C
PD
PARAMETER
Propagation delay
nCP to nQ
0
nQ to nQn+1
nMR to nQn
Maximum clock frequency
Input capacitance
Power dissipation capacitance per flip-flop
T
amb
= 25°C
T
amb
= 25°C
DESCRIPTION
The 74LV393 is a low–voltage Si-gate CMOS device and is pin and
function compatible with 74HC/HCT393.
The 74LV393 is a dual 4-bit binary ripple counter with separate
clocks (1CP, 2CP) and master reset (1MR, 2MR) inputs to each
counter.
The operation of each half of the ‘‘393’’ is the same as the ‘‘93’’
except no external clock connections are required. The counters are
triggered by a HIGH-to-LOW transition of the clock inputs. The
counter outputs are internally connected to provide clock inputs to
succeeding stages. The outputs of the ripple counter do not change
synchronously and should not be used for high-speed address
decoding.
The master resets are active-HIGH asynchronous inputs to each
4-bit counter identified by the ‘‘1’’ and ‘‘2’’ in the pin description.
A HIGH level on the nMR input overrides the clock and sets the
outputs LOW.
CONDITIONS
TYPICAL
12
4
11
99
3.5
UNIT
ns
MHz
pF
pF
C
L
= 15pF
V
CC
= 3.3V
V
I
= GND to V
CC 1
23
NOTE:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
µW)
V
CC2
f
i
)S
(C
L
V
CC2
f
o
) where:
P
D
= C
PD
f
i
= input frequency in MHz; C
L
= output load capacity in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
V
CC2
f
o
) = sum of the outputs.
S
(C
L
ORDERING INFORMATION
PACKAGES
14-Pin Plastic DIL
14-Pin Plastic SO
14-Pin Plastic SSOP Type II
14-Pin Plastic TSSOP Type I
TEMPERATURE RANGE
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
OUTSIDE NORTH AMERICA
74LV393 N
74LV393 D
74LV393 DB
74LV393 PW
NORTH AMERICA
74LV393 N
74LV393 D
74LV393 DB
74LV393PW DH
PKG. DWG. #
SOT27-1
SOT108-1
SOT337-1
SOT402-1
PIN CONFIGURATION
1CP
1MR
1Q
0
1Q
1
1Q
2
1Q
3
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
2CP
PIN DESCRIPTION
PIN
NUMBER
1, 13
2MR
2Q
0
2Q
1
2Q
2
2Q
3
SYMBOL
1CP, 2CP
1MR, 2MR
1Q
0
to 1Q
3
2Q
0
to 2Q
3
GND
V
CC
FUNCTION
Clock inputs
(HIGH-to-LOW, edge-triggered)
Asynchronous master reset inputs
(active HIGH)
Flip-flop outputs
Ground (0V)
Positive supply voltage
2, 12
3, 4, 5, 6
11, 10, 9, 8
7
14
SV00672
1998 Jun 10
2
853–1936 19545
Philips Semiconductors
Product specification
Dual 4-bit binary ripple counter
74LV393
LOGIC DIAGRAM
Q
Q
Q
Q
CP
T
FF1
T
FF2
T
FF3
T
FF4
R
D
R
D
R
D
R
D
MR
Q
0
Q
1
Q
2
Q
3
SV00677
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
CC
V
I
V
O
T
amb
t
r
, t
f
Input voltage
Output voltage
Operating ambient temperature range in free
air
Input rise and fall times
See DC and AC
characteristics
V
CC
= 1.0V to 2.0V
V
CC
= 2.0V to 2.7V
V
CC
= 2.7V to 3.6V
PARAMETER
DC supply voltage
CONDITIONS
See Note 1
MIN
1.0
0
0
–40
–40
–
–
–
–
–
–
TYP
3.3
–
–
MAX
3.6
V
CC
V
CC
+85
+125
500
200
100
UNIT
V
V
V
°C
ns/V
NOTES:
1. The LV is guaranteed to function down to V
CC
= 1.0V (input levels GND or V
CC
); DC characteristics are guaranteed from V
CC
= 1.2V to V
CC
=3.6V.
ABSOLUTE MAXIMUM RATINGS
1, 2
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0V).
SYMBOL
V
CC
±I
IK
±I
OK
±I
O
±I
GND
,
±I
CC
T
stg
P
TOT
PARAMETER
DC supply voltage
DC input diode current
DC output diode current
DC output source or sink current
– standard outputs
DC V
CC
or GND current for types with
– standard outputs
Storage temperature range
Power dissipation per package
– plastic DIL
– plastic mini-pack (SO)
– plastic shrink mini-pack (SSOP and TSSOP)
for temperature range: –40 to +125°C
above +70°C derate linearly with 12 mW/K
above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K
V
I
< –0.5 or V
I
> V
CC
+ 0.5V
V
O
< –0.5 or V
O
> V
CC
+ 0.5V
–0.5V < V
O
< V
CC
+ 0.5V
CONDITIONS
RATING
–0.5 to +4.6
20
50
25
50
–65 to +150
750
500
400
UNIT
V
mA
mA
mA
mA
°C
mW
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 Jun 10
4
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