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參數(shù)資料
| 型號： | SN74AHC123APW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS |
| 中文描述： | 雙RETRIGGERABLE單穩(wěn)態(tài)多頻振蕩器 |
| 文件頁數(shù)： | 4/23頁 |
| 文件大?。?/td> | 598K |
| 代理商： | SN74AHC123APW |
SN54AHC123A, SN74AHC123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS352G
–
JULY 1997
–
REVISED APRIL 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage range, V
CC
(see Note 1)
Input voltage range, V
I
(see Note 2)
Output voltage range in high or low state, V
O
(see Note 1)
Output voltage range in power-off state, V
O
(see Note 1)
Input clamp current, I
IK
(V
I
< 0)
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
)
Continuous output current, I
O
(V
O
= 0 to V
CC
)
Continuous current through V
CC
or GND
Package thermal impedance,
θ
JA
(see Note 3): D package
–
0.5 V to 7 V
–
0.5 V to 7 V
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DB package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–
0.5 V to V
CC
+ 0.5 V
–
0.5 V to 7 V
–
20 mA
±
20 mA
±
25 mA
±
50 mA
73
°
C/W
82
°
C/W
120
°
C/W
67
°
C/W
108
°
C/W
Storage temperature range, T
stg
Stresses beyond those listed under
“
absolute maximum ratings
”
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.
NOTES:
1. Voltage values are with respect to the network ground terminal.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
–
65
°
C to 150
°
C
recommended operating conditions (see Note 4)
SN54AHC123A
SN74AHC123A
UNIT
MIN
MAX
5.5
MIN
MAX
5.5
VCC
Supply voltage
2
2
V
VCC = 2 V
VCC = 3 V
VCC = 5.5 V
VCC = 2 V
VCC = 3 V
VCC = 5.5 V
1.5
1.5
VIH
High-level input voltage
2.1
2.1
V
3.85
3.85
0.5
0.5
VIL
Low-level input voltage
0.9
0.9
V
1.65
1.65
VI
VO
Input voltage
0
5.5
0
5.5
V
Output voltage
0
VCC
–
50
0
VCC
–
50
V
VCC = 2 V
VCC = 3.3 V
±
0.3 V
VCC = 5 V
±
0.5 V
VCC = 2 V
VCC = 3.3 V
±
0.3 V
VCC = 5 V
±
0.5 V
VCC = 2 V
VCC > 3 V
A
IOH
High-level output current
–
4
–
4
mA
–
8
–
8
50
50
A
IOL
Low-level output current
4
4
mA
8
8
Rext
External timing resistance
5k
5k
1k
1k
t/
VCC
TA
NOTE 4: Unused Rext/Cext terminals should be left unconnected. All remaining unused inputs of the device must be held at VCC or GND to ensure
proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
Power-up ramp rate
1
1
ms/V
°
C
Operating free-air temperature
–
55
125
–
40
85
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