HITACHI HD74AC393

HD74AC393
Dual Modulo-16-Counter
Description
The HD74AC393 contains a pair of high speed 4-stage ripple counters. Each half of the HD74AC393
operates as a modulo-16 binary divider, with the last three stages triggered in a ripple fashion. The flipflops are triggered by a High-to-Low transition of their CP inputs. Each half of each circuit type has a
Master Reset input which responds to a High signal by forcing all four outputs to the Low state.
Feature
• Outputs Source/Sink 24 mA
Pin Arrangement
CP 1
14 VCC
MR 2
13 CP
Q0 3
12 MR
Q1 4
11 Q0
Q2 5
10 Q1
Q3 6
9 Q2
GND 7
8 Q3
(Top view)
HD74AC393
Logic Symbol (each half)
1, 13
CP
MR
2, 12
Q0
Q1
3, 11
4, 10
Q2
5, 9
Q3
6, 8
Vcc=Pin14
GND=Pin7
Pin Names
CP
MR
Q0 – Q3
Clock Pulse Input (Active Falling Edge)
Asynchronous Master Reset Input (Active High)
Flip-flop Outputs
Functional Description
Each half of the HD74AC393 operates in the modulo-16 binary sequence, as indicated in the + 16 Truth
Table. The first flip-flop is triggered by High-to-Low transitions of the CP input signal. Each of the other
flip-flops is triggered by a High-to-Low transition of the Q output of the preceding flip-flop. Thus state
changes of the Q outputs do not occur simultaneously. This means that logic signals derived from
combinations of these outputs will be subject to decoding spikes and, therefore, should not be used as
clocks for other counters, registers or flip-flops. A High signal on MR forces all outputs to the Low state
and prevents counting.
2
HD74AC393
Truth Table
Outputs
Count
Q3
Q2
Q1
Q0
0
L
L
L
L
1
L
L
L
H
2
L
L
H
L
3
L
L
H
H
4
L
H
L
L
5
L
H
L
H
6
L
H
H
L
7
L
H
H
H
8
H
L
L
L
9
H
L
L
H
10
H
L
H
L
11
H
L
H
H
12
H
H
L
L
13
H
H
L
H
14
H
H
H
L
15
H
H
H
H
H :
L :
High Voltage Level
Low Voltage Level
Logic Diagram (one, half shown)
CP
K
CP
J
CD
K
CP
J
CD
K
CP
J
CD
K
CP
J
CD
Q
Q
Q
Q
Q0
Q1
Q2
Q3
MR
3
HD74AC393
DC Characteristics (unless otherwise specified)
Item
Symbol
Max
Unit
Condition
Maximum quiescent supply current
I CC
80
µA
VIN = VCC or ground, VCC = 5.5 V,
Ta = Worst case
Maximum quiescent supply current
I CC
8.0
µA
VIN = VCC or ground, VCC = 5.5 V,
Ta = 25°C
AC Characteristics: HD74AC393
Ta = +25°C
CL = 50 pF
Ta = –40°C to +85°C
CL = 50 pF
Item
Symbol
VCC (V)*1
Min
Typ
Max
Min
Max
Unit
Maximum clock
f max
3.3
125
—
—
100
—
MHz
5.0
150
—
—
125
—
3.3
1.0
8.5
12.0
1.0
13.0
5.0
1.0
6.5
9.0
1.0
10.0
3.3
1.0
8.0
11.5
1.0
12.5
5.0
1.0
6.0
8.5
1.0
9.5
3.3
1.0
12.0
15.0
1.0
16.0
5.0
1.0
9.5
12.0
1.0
13.0
3.3
1.0
11.5
14.5
1.0
15.5
5.0
1.0
9.0
11.5
1.0
12.5
3.3
1.0
15.0
18.0
1.0
19.5
5.0
1.0
12.0
14.5
1.0
16.0
3.3
1.0
14.5
17.5
1.0
19.0
5.0
1.0
11.5
14.0
1.0
15.5
3.3
1.0
18.0
20.5
1.0
22.0
5.0
1.0
14.5
17.0
1.0
18.5
3.3
1.0
17.5
20.0
1.0
21.5
5.0
1.0
14.0
16.5
1.0
17.5
3.3
1.0
10.5
14.0
1.0
15.0
5.0
1.0
8.5
11.0
1.0
12.0
frequency
Propagation delay
t PLH
CP to Q 0
Propagation delay
t PHL
CP to Q 0
Propagation delay
t PLH
CP to Q 1
Propagation delay
t PHL
CP to Q 1
Propagation delay
t PLH
CP to Q 2
Propagation delay
t PHL
CP to Q 2
Propagation delay
t PLH
CP to Q 3
Propagation delay
t PHL
CP to Q 3
Propagation delay
MR to Q0, Q1, Q2 or Q3
Note:
4
t PHL
1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
ns
ns
ns
ns
ns
ns
ns
ns
ns
HD74AC393
AC Operating Requirements: HD74AC393
Ta = –40°C
to +85°C
CL = 50 pF
Ta = +25°C
CL = 50 pF
Item
Symbol
VCC (V)*1 Typ
Guaranteed Minimum
Unit
Pulse width CP
tw
3.3
3.5
5.5
7.0
ns
5.0
2.5
4.5
5.0
3.3
–2.5
0.0
0.0
5.0
–2.5
0.0
0.0
Recovery time MR to CP
Note:
t rec
ns
1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
Capacitance
Item
Symbol
Typ
Unit
Condition
Input capacitance
CIN
4.5
pF
VCC = 5.5 V
Power dissipation capacitance
CPD
50
pF
VCC = 5.0 V
5
Unit: mm
19.20
20.32 Max
8
6.30
7.40 Max
14
1.30
7
2.54 ± 0.25
0.48 ± 0.10
0.51 Min
2.39 Max
2.54 Min 5.06 Max
1
7.62
+ 0.10
0.25 – 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
DP-14
Conforms
Conforms
0.97 g
Unit: mm
10.06
10.5 Max
8
5.5
14
1
0.10 ± 0.10
1.42 Max
1.27
*0.42 ± 0.08
0.40 ± 0.06
*0.22 ± 0.05
0.20 ± 0.04
2.20 Max
7
+ 0.20
7.80 – 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-14DA
—
Conforms
0.23 g
Unit: mm
8.65
9.05 Max
8
1
7
*0.20 ± 0.05
0.635 Max
1.75 Max
3.95
14
+ 0.10
6.10 – 0.30
1.08
*0.40 ± 0.06
0.11
0.14 +– 0.04
0° – 8°
1.27
0.67
0.60 +– 0.20
0.15
0.25 M
*Pd plating
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-14DN
Conforms
Conforms
0.13 g
Unit: mm
4.40
5.00
5.30 Max
14
8
1
7
0.65
0.20 ± 0.06
1.0
0.13 M
6.40 ± 0.20
0.10
*Dimension including the plating thickness
Base material dimension
*0.17 ± 0.05
0.15 ± 0.04
1.10 Max
0.83 Max
0.07 +0.03
–0.04
*0.22+0.08
–0.07
0° – 8°
0.50 ± 0.10
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
TTP-14D
—
—
0.05 g
Cautions
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intellectual property rights, in connection with use of the information contained in this document.
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received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
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products.
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