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參數(shù)資料
| 型號： | SNJ54HCT574FK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | HCT SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大小： | 563K |
| 代理商： | SNJ54HCT574FK |
SN54HCT574, SN74HCT574
OCTAL EDGETRIGGERED DTYPE FLIPFLOPS
WITH 3STATE OUTPUTS
SCLS177E MARCH 1984 REVISED AUGUST 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54HCT574
SN74HCT574
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
VCC = 4.5 V to 5.5 V
2
V
VIL
Low-level input voltage
VCC = 4.5 V to 5.5 V
0.8
V
VI
Input voltage
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
V
t/v
Input transition rise/fall time
500
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
SN54HCT574
SN74HCT574
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
VOH
VI = VIH or VIL
IOH = 20 A
4.5 V
4.4
4.499
4.4
V
VOH
VI = VIH or VIL
IOH = 6 mA
4.5 V
3.98
4.3
3.7
3.84
V
VOL
VI = VIH or VIL
IOL = 20 A
4.5 V
0.001
0.1
V
VOL
VI = VIH or VIL
IOL = 6 mA
4.5 V
0.17
0.26
0.4
0.33
V
II
VI = VCC or 0
5.5 V
±0.1
±100
±1000
nA
IOZ
VO = VCC or 0
5.5 V
±0.01
±0.5
±10
±5
A
ICC
VI = VCC or 0,
IO = 0
5.5 V
8
160
80
A
ICC
One input at 0.5 V or 2.4 V,
Other inputs at 0 or VCC
5.5 V
1.4
2.4
3
2.9
mA
Ci
4.5 V
to 5.5 V
3
10
pF
This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
TA = 25°C
SN54HCT574
SN74HCT574
UNIT
VCC
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
fclock
Clock frequency
4.5 V
30
20
24
MHz
fclock
Clock frequency
5.5 V
33
22
27
MHz
tw
Pulse duration, CLK high or low
4.5 V
16
24
20
ns
tw
Pulse duration, CLK high or low
5.5 V
14
22
18
ns
tsu
Setup time, data before CLK
↑
4.5 V
20
30
25
ns
tsu
Setup time, data before CLK
↑
5.5 V
17
27
23
ns
th
Hold time, data after CLK
↑
4.5 V
5
ns
th
Hold time, data after CLK
↑
5.5 V
5
ns
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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