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參數(shù)資料
| 型號(hào)： | SN54AS109AJ |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH CLEAR AND PRESET |
| 中文描述： | 雙JK上升沿觸發(fā)器，沒有明確的和預(yù)置觸發(fā)器 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 138K |
| 代理商： | SN54AS109AJ |
SN54ALS109A, SN54AS109A, SN74ALS109A, SN74AS109A
DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS
WITH CLEAR AND PRESET
SDAS198B – APRIL 1982 – REVISED AUGUST 1995
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
Input voltage, V
I
Operating free-air temperature range, T
A
: SN54AS109A
7 V
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74AS109A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55
°
C to 125
°
C
0
°
C to 70
°
C
–65
°
C to 150
°
C
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.
recommended operating conditions
SN54AS109A
MIN
NOM
SN74AS109A
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
IOH
IOL
fclock*
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
High-level output current
–2
–2
mA
Low-level output current
20
20
mA
Clock frequency
0
90
0
105
MHz
PRE or CLR low
4
4
tw*
Pulse duration
CLK high
4
4
ns
CLK low
5.5
5.5
tsu*
Set p time before CLK
Setup time before CLK
↑
Data
5.5
5.5
ns
PRE or CLR inactive
2
2
th*
TA
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.
Hold time after CLK
↑
Operating free-air temperature
Data
0
0
ns
°
C
–55
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54AS109A
MIN
TYP
SN74AS109A
MIN
TYP
UNIT
MAX
MAX
VIK
VOH
VOL
II
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
II = –18 mA
IOH = –2 mA
IOL = 20 mA
VI = 7 V
–1.2
–1.2
V
VCC–2
VCC–2
V
0.25
0.5
0.25
0.5
V
0.1
0.1
mA
IIH
CLK, J, or K
VCC= 5 5 V
VCC = 5.5 V,
VI= 2 7 V
VI = 2.7 V
20
20
μ
A
PRE or CLR
40
40
IIL
CLK, J, or K
VCC= 5 5 V
VCC = 5.5 V,
VI= 0 4 V
VI = 0.4 V
–0.5
–0.5
mA
PRE or CLR
–1.8
–1.8
IO§
ICC
All typical values are at VCC = 5 V, TA = 25
°
C.
§The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
NOTE 1: ICC is measured with J, K, CLK, and PRE grounded, then with J, K, CLK, and CLR grounded.
VCC = 5.5 V,
VCC = 5.5 V,
VO = 2.25 V
See Note 1
–30
–112
–30
–112
mA
11.5
17
11.5
17
mA
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