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參數(shù)資料
| 型號： | SN54F109J |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Y2K Enhanced ACPI Compliant RTC IC w 240x8 NVSRAM, Alarm Wake-up 3.3V op 32kHz Dedicated Output 24-SSOP/QSOP |
| 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)： | 3/5頁 |
| 文件大?。?/td> | 73K |
| 代理商： | SN54F109J |
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
MIN
TYP
SN74F109
MIN
TYP
UNIT
MAX
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.75 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
II = –18 mA
IOH = – 1 mA
IOH = – 1 mA
IOL = 20 mA
VI = 7 V
VI = 2.7 V
–1.2
–1.2
V
VOH
2.5
3.4
2.5
3.4
V
2.7
VOL
II
IIH
0.3
0.5
0.3
0.5
V
0.1
0.1
mA
μ
A
20
20
IIL
J, K, CLK
VCC= 5 5 V
VCC = 5.5 V,
VI= 0 5 V
VI = 0.5 V
– 0.6
– 0.6
mA
PRE or CLR
– 1.8
– 1.8
IOS
ICC
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.
VCC = 5.5 V,
VCC = 5.5 V,
VO = 0
See Note 2
–60
–150
–60
–150
mA
11.7
17
11.7
17
mA
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
VCC = 5 V,
TA = 25
°
C
′
F74
MIN
SN54F109
SN74F109
UNIT
MAX
MIN
MAX
MIN
MAX
fclock
Clock frequency
0
100
0
70
0
90
MHz
tw
Pulse duration
CLK high, PRE or CLR low
4
4
4
ns
CLK low
5
5
5
Setup time data before CLK
Setup time, data before CLK
↑
High
3
3
3
tsu
Low
3
3
3
ns
Setup time, inactive-state before CLK
↑
§
PRE or CLR to CLK
2
2
2
th
Hold time data after CLK
Hold time, data after CLK
↑
High
Low
1
1
1
1
1
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
′
F109
MIN
100
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500
,
TA = MIN to MAX
SN54F109
MIN
MAX
70
UNIT
SN74F109
MIN
90
TYP
150
MAX
MAX
fmax
tPLH
tPHL
tPLH
tPHL
MHz
CLK
Q or Q
3
4.9
7
3
9
3
8
ns
3.6
5.8
8
3.6
10.5
3.6
9.2
PRE or CLR
Q or Q
2.4
4.8
7
2.4
9
2.4
8
ns
2.7
6.6
9
2.7
11.5
2.7
10.5
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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