參數(shù)資料
型號： SN54AS841FKR
廠商： TEXAS INSTRUMENTS INC
元件分類： 總線收發(fā)器
英文描述： AS SERIES, 10-BIT DRIVER, TRUE OUTPUT, CQCC28
封裝： CERAMIC, QCC-28
文件頁數(shù)： 11/11頁
文件大小： 141K
代理商： SN54AS841FKR
SN54AS841, SN54AS842, SN74AS841, SN54AS842
10-BIT BUS INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS
SDAS059B – D2910, DECEMBER 1983 – REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
9
recommended operating conditions
SN54AS841
SN54AS842
SN74AS841
SN74AS842
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
IOH
High-level output current
–24
mA
IOL
Low-level output current
32
48
mA
tw
Pulse duration, C high
5
4
ns
tsu
Setup time, data before C
↓
3.5
2.5
ns
th
Hold time,, data after C
↓
3.5
2.5
ns
TA
Operating free-air temperature
–55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54AS841
SN74AS841
PARAMETER
TEST CONDITIONS
SN54AS842
SN74AS842
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.2
V
VCC = 4.5 V to 5.5 V,
IOH = – 2 mA
VCC –2
VOH
VCC = 4.5 V,
IOH = – 15 mA
2.4
3.2
2.4
3.2
V
VCC = 4.5 V,
IOH = – 24 mA
2
VOL
VCC = 4.5 V,
IOL = 32 mA
0.25
0.5
V
VOL
VCC = 4.5 V,
IOL = 48 mA
0.35
0.5
V
IOZH
VCC = 5.5 V,
VO= 2. 7 V
50
A
IOZL
VCC = 5.5 V,
VO = 0.4 V
–50
A
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VO = 2.7 V
20
A
IIL
VCC = 5.5 V,
VI = 0 .4 V
– 0.5
mA
IO
VCC = 5.5 V,
VO = 2.25 V
–30
–112
–30
–112
mA
Outputs high
36
60
36
60
’AS841
Outputs low
58
94
58
94
ICC
VCC =5 5V
Outputs disabled
56
92
56
92
mA
ICC
VCC = 5.5 V
Outputs high
38
62
38
62
mA
’AS842
Outputs low
60
97
60
97
Outputs disabled
58
95
58
95
All typical values are at VCC = 5 V, TA = 25°C.
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
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