HD74LV123AT [HITACHI]
Monostable Multivibrator, LV/LV-A/LVX/H Series, 2-Func, CMOS, PDSO16, TTP-16DA;
| 型号： | HD74LV123AT |
| 厂家： | 
HITACHI SEMICONDUCTOR |
| 描述： | Monostable Multivibrator, LV/LV-A/LVX/H Series, 2-Func, CMOS, PDSO16, TTP-16DA 触发器 |
| 文件： | 总20页 (文件大小：92K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HD74LV123A
Dual Retriggerable Monostable Multivibrators
ADE-205-258A (Z)
2nd Edition
June 1999
Description
The HD74LV123A features output pulse-duration control by three methods. In the first method, the A
input is low and the B input goes high. In the second method, the B input is high and the A input goes low.
In the third method, the A input is low, the B input is high, and the clear (CLR) input goes high.
The basic pulse duration is programmed by selecting external resistance and capacitance values.
The external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external
resistor connected between Rext/Cext and Vcc
To obtain variable pulse durations, connect an external variable resistance between Rext/Cext and Vcc.
Once triggered, the basic pulse duration can be extended by retriggering the gated low-level-active (A) or
high-level-active (B) input. Pulse duration can be reduced by taking CLR low.
Features
•
•
•
•
VCC = 2.0 V to 5.5 V operation
All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)
All outputs VO (Max.) = 5.5 V (@VCC = 0 V)
Output current ±6 mA (@VCC = 3.0 V to 3.6 V), ±12 mA (@VCC = 4.5 V to 5.5 V)
HD74LV123A
Function Table
Inputs
Outputs
CLR
L
A
X
H
X
L
B
X
X
L
Q
L
L
L
Q
H
H
H
H
H
H
↑
H
↓
H
H
↑
L
Note: H: High level
L: Low level
X: Immaterial
↑: Low to high transition
↓: High to low transition
:
:
High level pulse
Low level pulse
Pin Arrangement
16
15
14
13
12
11
1
2
3
4
5
6
7
8
VCC
1A
1B
1Rext / Cext
1Cext
1Q
1CLR
1Q
2Q
2Q
2CLR
2B
2Cext
2Rext / Cext
10
9
GND
2A
(Top view)
2
HD74LV123A
Absolute Maximum Ratings
Item
Symbol
Ratings
–0.5 to 7.0
–0.5 to 7.0
–0.5 to VCC + 0.5
–0.5 to 7.0
–20
Unit
V
Conditions
Supply voltage range
Input voltage range*1
Output voltage range*1, 2
VCC
VI
V
VO
V
Output: H or L
VCC: OFF
Input clamp current
IIK
mA
mA
mA
mA
VI < 0
Output clamp current
IOK
±50
VO < 0 or VO > VCC
VO = 0 to VCC
Continuous output current
IO
±25
Continuous current through
ICC or IGND
±50
V
CC or GND
Maximum power dissipation
PT
785
mW
SOP
at Ta = 25°C (in still air)*3
500
TSSOP
Storage temperature
Tstg
–65 to 150
°C
Notes: The absolute maximum ratings are values which must not individually be exceeded, and furthermore,
no two of which may be realized at the same time.
1. The input and output voltage ratings may be exceeded if the input and output clamp-current
ratings are observed.
2. This value is limited to 5.5 V maximum.
3. The maximum package power dissipation was calculated using a junction temperature of 150°C.
3
HD74LV123A
Recommended Operating Conditions
Item
Symbol
VCC
Min
2.0
0
Typ
—
Max
5.5
5.5
VCC
–50
–2
Unit
V
Conditions
Supply voltage range
Input voltage range
Output voltage range
Output current
VI
—
V
VO
0
—
V
IOH
—
—
—
—
—
—
—
—
0
—
µA
mA
VCC = 2.0 V
—
VCC = 2.3 to 2.7 V
VCC = 3.0 to 3.6 V
VCC = 4.5 to 5.5 V
VCC = 2.0 V
—
–6
—
–12
50
IOL
—
µA
—
2
mA
VCC = 2.3 to 2.7 V
VCC = 3.0 to 3.6 V
VCC = 4.5 to 5.5 V
VCC = 2.3 to 2.7 V
VCC = 3.0 to 3.6 V
VCC = 4.5 to 5.5 V
VCC = 2.0 V
—
6
—
12
Input transition rise or fall rate
∆t /∆v
—
200
100
20
ns/V
0
—
0
—
External timing registance
External timing capacitance
Rext
Cext
5
—
—
kΩ
1
—
—
VCC ≥ 3.0 V
—
–40
Unlimited
—
F
Operating free-air temperature Ta
85
°C
Note: Unused or floating inputs must be held high or low.
4
HD74LV123A
Logic Diagram
Rext/
Cext
Cext
A
Q
Q
B
Q
Q
CLR
CLR
5
HD74LV123A
DC Electrical Characteristics
•
Ta = –40 to 85°C
Item
Symbol
VCC (V)*
2.0
Min
Typ
—
—
—
—
—
—
—
—
—
Max
—
Unit
Test Conditions
Input voltage
VIH
1.5
V
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
2.0
V
V
V
CC × 0.7
—
CC × 0.7
CC × 0.7
—
—
VIL
—
0.5
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
—
V
V
V
CC × 0.3
—
CC × 0.3
CC × 0.3
—
Output voltage
VOH
Min to
Max
VCC – 0.1
—
V
IOH = –50 µA
2.3
3.0
4.5
2.0
2.48
3.8
—
—
—
—
—
—
—
—
0.1
IOH = –2 mA
IOH = –6 mA
IOH = –12 mA
IOL = 50 µA
VOL
Min to
Max
2.3
—
—
—
—
—
—
—
—
—
—
0.4
IOL = 2 mA
3.0
0.44
0.55
±1
IOL = 6 mA
4.5
IOL = 12 mA
Input current
IIN
IIN
0 to 5.5
5.5
µA
µA
VIN = 5.5 V or GND
VIN = VCC or GND
Input current
Rext / Cext
±2.5
Quiescent
ICC
5.5
2.3
—
—
—
—
20
µA
µA
VIN = VCC or GND, IO = 0
supply current
Active state
supply
∆ICC
220
VIN = VCC or GND
Rext/Cext = 0.5 VCC
current
(per circuit)
3.0
4.5
5.5
0
—
—
—
—
—
—
—
—
280
650
975
5
Output leakage IOFF
current
µA
VO = 5.5 V
Input
CIN
3.3
—
4.0
—
pF
VI = VCC or GND
capacitance
Note: For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
6
HD74LV123A
Switching Characteristics
•
VCC = 2.5 ± 0.2 V
Ta = 25°C
Ta = –40 to 85°C
FROM
(Input)
TO
Item
Symbol Min
Typ
Max
Min
Max
Unit
Test Conditions
(Output)
Propa-
tPLH
tPHL
—
13.5 31.4
1.0
37.0
ns
CL = 15 pF
A or B
Q or Q
gation
delay time
—
—
—
—
—
—
16.0 36.0
11.0 25.0
13.0 32.8
14.0 33.4
16.0 38.0
1.0
1.0
1.0
1.0
1.0
—
42.0
29.5
34.5
39.0
44.0
320
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 50 pF,
CLR
Q or Q
Q or Q
CLR
(Trigger)
Output
pulse
width
twQ
170
260
ns
Cext = 28 pF, Rext = 2 kΩ
90
100
1.0
110
1.1
90
110
1.1
µs
CL = 50 pF,
Cext = 0.01 µF, Rext = 10 kΩ
CL = 50 pF,
0.9
0.9
ms
Cext = 0.1 µF, Rext = 10 kΩ
CL = 50 pF
∆twQ
—
±1
—
—
—
—
—
%
Pulse
width
tw
6.0
—
6.5
ns
A, B or CLR
Retrigger
time
trr
—
—
40
—
—
—
—
—
—
ns
A, or B
(Rext = 1 kΩ, Cext = 100 pF)
1.5
µs
A, or B
(Rext = 1 kΩ, Cext = 0.01 µF)
7
HD74LV123A
Switching Characteristics (cont)
•
VCC = 3.3 ± 0.3 V
Ta = 25°C
Ta = –40 to 85°C
FROM
(Input)
TO
Item
Symbol Min
Typ
9.7
Max
Min
Max
Unit
Test Conditions
(Output)
Propa-
tPLH
tPHL
—
20.6
1.0
24.0
ns
CL = 15 pF
A or B
Q or Q
gation
delay time
—
—
—
—
—
—
11.5 24.1
1.0
1.0
1.0
1.0
1.0
—
27.5
18.5
22.0
26.0
29.5
300
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 50 pF,
8.0
9.5
9.9
15.8
19.3
22.4
CLR
Q or Q
Q or Q
CLR
11.5 25.9
(Trigger)
Output
pulse
width
twQ
150
240
ns
Cext = 28 pF, Rext = 2 kΩ
90
100
1.0
110
1.1
90
110
1.1
µs
CL = 50 pF,
Cext = 0.01 µF, Rext = 10 kΩ
CL = 50 pF,
0.9
0.9
ms
Cext = 0.1 µF, Rext = 10 kΩ
CL = 50 pF
∆twQ
—
±1
—
—
—
—
—
%
Pulse
width
tw
5.0
—
5.0
ns
A, B or CLR
Retrigger
time
trr
—
—
30
—
—
—
—
—
—
ns
A, or B
(Rext = 1 kΩ, Cext = 100 pF)
1.2
µs
A, or B
(Rext = 1 kΩ, Cext = 0.01 µF)
8
HD74LV123A
Switching Characteristics (cont)
•
VCC = 5.0 ± 0.5 V
Ta = 25°C
Ta = –40 to 85°C
FROM
(Input)
TO
Item
Symbol Min
Typ
7.3
Max
Min
Max
Unit
Test Conditions
(Output)
Propa-
tPLH
tPHL
—
12.0
1.0
14.0
ns
CL = 15 pF
A or B
Q or Q
gation
delay time
—
—
—
—
—
—
8.5
5.9
7.5
7.3
8.7
140
14.0
9.4
1.0
1.0
1.0
1.0
1.0
—
16.0
11.0
13.0
15.0
17.0
240
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 15 pF
CL = 50 pF
CL = 50 pF,
CLR
Q or Q
Q or Q
11.4
12.9
14.9
200
CLR
(Trigger)
Output
pulse
width
twQ
ns
Cext = 28 pF, Rext = 2 kΩ
90
100
1.0
110
1.1
90
110
1.1
µs
CL = 50 pF,
Cext = 0.01 µF, Rext = 10 kΩ
CL = 50 pF,
0.9
0.9
ms
Cext = 0.1 µF, Rext = 10 kΩ
CL = 50 pF
∆twQ
—
±1
—
—
—
—
—
%
Pulse
width
tw
5.0
—
5.0
ns
A, B or CLR
Retrigger
time
trr
—
—
20
—
—
—
—
—
—
ns
A, or B
(Rext = 1 kΩ, Cext = 100 pF)
0.95
µs
A, or B
(Rext = 1 kΩ, Cext = 0.01 µF)
9
HD74LV123A
Operating Characteristics
•
CL = 50 pF
Ta = 25°C
Min
Item
Symbol VCC (V)
Typ
Max
Unit
Test Conditions
Power
CPD
3.3
—
74.0
—
pF
f = 10 MHz
dissipation
capacitance
5.0
—
86.0
—
Test Circuit
VCC
Cext
Rext
Cext = 28 pF or 100 pF or 0.01 µF or 0.1 µF
Rext = 1 kΩ or 2 kΩ or 10 kΩ
–
+
VCC
VCC
Q
Cext Rext/
Cext
Output
A
Refer
CL = 15 pF or 50 pF
to
Func-
tion
Input
B
Table
Q
Output
CLR
CL = 15 pF or 50 pF
GND
Note : CL includes the probe and jig capacitance.
10
HD74LV123A
Timing diagram
trr
A
B
CLR
Rext/
Cext
Q
Q
tw
tw
tw +trr
Caution in use
In order to prevent any malfunctions due to noise, connect a high frequency
performance capacitor between Vcc and GND, and keep the wiring between the
External components and Cext, Rext/Cext pins as short as possible.
Large values of Cext may cause problems when powering down the HD74LV123A
because of the amount of energy stored in the capacitor. When a system containing
this device is powered down, the capacitor may discharge from Vcc through the protection
diodes at pin 7 or pin 15.
Current through the input protection diodes must be limited to 20 mA; therefore, the turn-off
time of the Vcc power supply must not be faster than t = Vcc • Cext/(20 mA). For example,
if Vcc = 5 V and Cext = 22 µF, the Vcc supply must turn off no faster than t = (5 V) • (22 µF)/
20 mA = 5.5 ms. This is usually not a problem because power supplies are heavily filtered
and cannot discharge at this rate.
When a more rapid decrease of Vcc to zero volts occurs, the HD74LV123A may sustain damage.
To avoid this possibility, use an external calmping diode.
11
HD74LV123A
• Waveform – 1
tf
VCC
90%
50%
Input A
10%
tr
GND
VCC
90%
Input B
50%
10%
10%
GND
tf
tr
tr
VCC
90%
50%
90%
50%
10%
90%
50%
10%
Input CLR
GND
tw (L)
tPLH(trigger)
tPHL
VOH
Output Q
50% VCC
50% VCC
VOL
tPHL(trigger)
tPLH
VOH
50% VCC
50% VCC
Output Q
VOL
12
HD74LV123A
• Waveform – 2
tf
tr
tr
VCC
90%
50%
90%
50%
90%
50%
10%
Input A
10%
90%
10%
GND
tw (H)
tw (L)
tf
tr
tf
VCC
90%
50%
90%
50%
50%
Input B
10%
10%
10%
GND
tw (L)
tw (H)
VOH
VOL
VOH
Output Q
Output Q
50% VCC
50% VCC
tw (out)
50% VCC
50% VCC
VOL
• Waveform – 3
tf
tr
tf
VCC
90%
50%
90%
90%
50%
Input A
10%
10%
90%
10%
tr
GND
trr
tf
tr
VCC
90%
50%
90%
50%
10%
Input B
10%
10%
GND
VOH
Output Q
50% VCC
50% VCC
VOL
tw (out) + trr
VOH
50% VCC
50% VCC
Output Q
VOL
Note: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns
2. The output are measured one at a time with one transition per measurement.
13
HD74LV123A
Application Data
Vcc = 2.5 V
10000.0
1000.0
100.0
10.0
Rext
1 kΩ
1.0
0.1
10 kΩ
100 kΩ
1 MΩ
102
103
104
105
106
107
Timing capacitance Cext (pF)
14
HD74LV123A
Vcc = 3.3 V
10000.0
1000.0
100.0
10.0
Rext
1 kΩ
1.0
0.1
10 kΩ
100 kΩ
1 MΩ
102
103
104
105
106
107
Timing capacitance Cext (pF)
Vcc = 5.0 V
10000.0
1000.0
100.0
10.0
Rext
1 kΩ
1.0
0.1
10 kΩ
100 kΩ
1 MΩ
102
103
104
105
106
107
Timing capacitance Cext (pF)
15
HD74LV123A
Rext = 2 kΩ
1.4
1.3
1.2
1.1
1.0
0.9
0.8
Cext
1000 pF
10000 pF
100000 pF
1000000 pF
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Supply voltage VCC (V)
Rext = 10 kΩ
1.4
1.3
1.2
1.1
1.0
0.9
0.8
Cext
1000 pF
10000 pF
100000 pF
1000000 pF
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Supply voltage VCC (V)
16
HD74LV123A
Package Dimensions
10.06
10.5 Max
9
16
1
8
+ 0.20
7.80
– 0.30
0.80 Max
1.15
0° – 8°
1.27
0.70 ± 0.20
0.42 ± 0.08
0.40 ± 0.06
0.15
M
0.12
Hitachi Code
JEDEC
EIAJ
FP-16DA
—
Conforms
Dimension including the plating thickness
Base material dimension
Weight (reference value) 0.24 g
17
HD74LV123A
Unit: mm
9.9
10.3 Max
9
16
1
8
1.27
+ 0.10
6.10
– 0.30
1.08
0.635 Max
0° – 8°
+ 0.67
0.60
– 0.20
*0.42 ± 0.08
0.40 ± 0.06
0.15
0.25
M
Hitachi Code
JEDEC
EIAJ
FP-16DN
Conforms
Conforms
*Dimension including the plating thickness
Base material dimension
Weight (reference value) 0.15 g
18
HD74LV123A
5.0
5.3 Max
16
1
9
8
0.65
0.13 M
0.65 Max
1.0
+ 0.08
– 0.07
0.22
0.20 ± 0.06
6.40 ± 0.20
0° – 8°
0.50 ± 0.10
0.10
Hitachi Code
JEDEC
EIAJ
TTP-16DA
—
—
Dimension including the plating thickness
Base material dimension
Weight (reference value) 0.05 g
19
HD74LV123A
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
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 in 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 fail-safe
devices, so that the equipment incorporating the 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.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
Hitachi, Ltd.
Semiconductor & Integrated Circuits.
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Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
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For further information write to:
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Copyright © Hitachi, Ltd., 1998. All rights reserved. Printed in Japan.
20
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