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參數(shù)資料
| 型號： | SNJ54HC4020WR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 計數(shù)器 |
| 英文描述： | HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 14-BIT UP BINARY COUNTER, CDFP16 |
| 封裝： | CERAMIC, DFP-16 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 794K |
| 代理商： | SNJ54HC4020WR |
SN54HC4020, SN74HC4020
14BIT ASYNCHRONOUS BINARY COUNTERS
SCLS158E DECEMBER 1982 REVISED SEPTEMBER 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54HC4020
SN74HC4020
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
2
5
6
2
5
6
V
VCC = 2 V
1.5
VIH
High-level input voltage
VCC = 4.5 V
3.15
V
VIH
High-level input voltage
VCC = 6 V
4.2
V
VCC = 2 V
0.5
VIL
Low-level input voltage
VCC = 4.5 V
1.35
V
VIL
Low-level input voltage
VCC = 6 V
1.8
V
VI
Input voltage
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
V
VCC = 2 V
1000
t/v Input transition rise/fall time
VCC = 4.5 V
500
ns
t/v Input transition rise/fall time
VCC = 6 V
400
ns
TA
Operating free-air temperature
55
125
40
85
°C
NOTE 3: All 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.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54HC4020
SN74HC4020
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
1.9
1.998
1.9
IOH = 20 A
4.5 V
4.4
4.499
4.4
VOH
VI = VIH or VIL
IOH = 20 A
6 V
5.9
5.999
5.9
V
VOH
VI = VIH or VIL
IOH = 4 mA
4.5 V
3.98
4.3
3.7
3.84
V
IOH = 5.2 mA
6 V
5.48
5.8
5.2
5.34
2 V
0.002
0.1
IOL = 20 A
4.5 V
0.001
0.1
VOL
VI = VIH or VIL
IOL = 20 A
6 V
0.001
0.1
V
VOL
VI = VIH or VIL
IOL = 4 mA
4.5 V
0.17
0.26
0.4
0.33
V
IOL = 5.2 mA
6 V
0.15
0.26
0.4
0.33
II
VI = VCC or 0
6 V
±0.1
±100
±1000
nA
ICC
VI = VCC or 0,
IO = 0
6 V
8
160
80
A
Ci
2 V to 6 V
3
10
pF
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