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SN74F244NSRE4 数据表(PDF) 3 Page - Texas Instruments

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部件名 SN74F244NSRE4
功能描述  OCTAL BUFFERS/DRIVERS
Download  21 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

SN74F244NSRE4 数据表(HTML) 3 Page - Texas Instruments

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SN54F244, SN74F244
OCTAL BUFFERS/DRIVERS
WITH 3STATE OUTPUTS
SDFS063A − D2932, MARCH 1987 − REVISED OCTOBER 1993
2−3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251−1443
recommended operating conditions
SN54F244
SN74F244
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
2
2
V
VIL
Low-level input voltage
0.8
0.8
V
IIK
Input clamp current
−18
−18
mA
IOH
High-level output current
−12
−15
mA
IOL
Low-level output current
48
64
mA
TA
Operating free-air temperature
−55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54F244
SN74F244
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = − 18 mA
− 1.2
− 1.2
V
IOH = − 3 mA
2.4
3.3
2.4
3.3
VOH
VCC = 4.5 V
IOH = − 12 mA
2
3.2
V
VOH
VCC = 4.5 V
IOH = − 15 mA
2
3.1
V
VCC = 4.75 V,
IOH = − 3 mA
2.7
VOL
VCC = 4.5 V
IOL = 48 mA
0.38
0.55
V
VOL
VCC = 4.5 V
IOL = 64 mA
0.42
0.55
V
IOZH
VCC = 5.5 V,
VO = 2.7 V
50
50
µA
IOZL
VCC = 5.5 V,
VO = 0.5 V
−50
−50
µA
II
VCC = 5.5 V,
VI = 7 V
0.1
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
20
µA
IIL
OE
VCC = 5.5 V,
VI = 0.5 V
−1
−1
mA
IIL
Any A
VCC = 5.5 V,
VI = 0.5 V
− 1.6
− 1.6
mA
IOS‡
VCC = 5.5 V,
VO = 0
− 100
− 225
− 100
− 225
mA
VCC = 5.5 V,
Outputs high
40
60
40
60
ICC
VCC = 5.5 V,
Outputs open
Outputs low
60
90
60
90
mA
ICC
Outputs open
Outputs disabled
60
90
60
90
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.


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