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参数资料
| 型号： | SN54F109FKR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 锁存器 |
| 英文描述： | F/FAST SERIES, DUAL POSITIVE EDGE TRIGGERED J-KBAR FLIP-FLOP, COMPLEMENTARY OUTPUT, CQCC20 |
| 封装： | CERAMIC, LCC-20 |
| 文件页数： | 3/5页 |
| 文件大小： | 73K |
| 代理商： | SN54F109FKR |
SN54F109, SN74F109
DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS
WITH CLEAR AND PRESET
SDFS047A – MARCH 1987 – REVISED OCTOBER 1993
2–3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54F109
SN74F109
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.2
V
VOH
VCC = 4.5 V,
IOH = – 1 mA
2.5
3.4
2.5
3.4
V
VOH
VCC = 4.75 V,
IOH = – 1 mA
2.7
V
VOL
VCC = 4.5 V,
IOL = 20 mA
0.3
0.5
0.3
0.5
V
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
A
IIL
J, K, CLK
VCC =5 5V
VI =0 5V
– 0.6
mA
IIL
PRE or CLR
VCC = 5.5 V,
VI = 0.5 V
– 1.8
mA
IOS
VCC = 5.5 V,
VO = 0
–60
–150
–60
–150
mA
ICC
VCC = 5.5 V,
See Note 2
11.7
17
11.7
17
mA
All typical values are at VCC = 5 V, TA = 25°C.
Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
NOTE 2: ICC is measured with J, K, CLK, and PRE grounded then with J, K, CLK, and CLR grounded.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
VCC = 5 V,
TA = 25°C
SN54F109
SN74F109
UNIT
′F74
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
fclock
Clock frequency
0
100
0
70
0
90
MHz
t
Pulse duration
CLK high, PRE or CLR low
4
ns
tw
Pulse duration
CLK low
5
ns
Setup time data before CLK
↑
High
3
tsu
Setup time, data before CLK
↑
Low
3
ns
su
Setup time, inactive-state before CLK
↑§ PRE or CLR to CLK
2
th
Hold time data after CLK
↑
High
1
ns
th
Hold time, data after CLK
↑
Low
1
ns
§ Inactive-state setup time is also referred to as recovery time.
switching characteristics (see Note 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
CL = 50 pF,
RL = 500 ,
TA = 25°C
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 ,
TA = MIN to MAX
UNIT
(INPUT)
(OUTPUT)
′F109
SN54F109
SN74F109
MIN
TYP
MAX
MIN
MAX
MIN
MAX
fmax
100
150
70
90
MHz
tPLH
CLK
QorQ
3
4.9
7
3
9
3
8
ns
tPHL
CLK
Q or Q
3.6
5.8
8
3.6
10.5
3.6
9.2
ns
tPLH
PRE or CLR
QorQ
2.4
4.8
7
2.4
9
2.4
8
ns
tPHL
PRE or CLR
Q or Q
2.7
6.6
9
2.7
11.5
2.7
10.5
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
NOTE 3: Load circuits and waveforms are shown in Section 1.
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