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參數(shù)資料
| 型號： | SN54AS842 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 10-BIT BUS INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS |
| 中文描述： | 10位總線接口D型鎖存器具有三態(tài)輸出 |
| 文件頁數(shù)： | 9/11頁 |
| 文件大?。?/td> | 141K |
| 代理商： | SN54AS842 |
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
MIN
NOM
4.5
2
SN74AS841
SN74AS842
MIN
NOM
4.5
2
UNIT
MAX
5.5
MAX
5.5
VCC
VIH
VIL
IOH
IOL
tw
tsu
th
TA
Supply voltage
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
Pulse duration, C high
Setup time, data before C
↓
Hold time,, data after C
↓
Operating free-air temperature
5
5
V
V
V
0.8
–24
32
0.8
–24
48
mA
mA
ns
ns
ns
°
C
5
4
3.5
3.5
–55
2.5
2.5
125
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54AS841
SN54AS842
MIN
TYP
SN74AS841
SN74AS842
MIN
TYP
PARAMETER
TEST CONDITIONS
UNIT
MAX
–1.2
MAX
–1.2
VIK
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
II = –18 mA
IOH = – 2 mA
IOH = –15 mA
IOH = –24 mA
IOL = 32 mA
IOL = 48 mA
VO= 2. 7 V
VO = 0.4 V
VI = 7 V
VO = 2.7 V
VI = 0 .4 V
VO = 2.25 V
Outputs high
Outputs low
Outputs disabled
Outputs high
Outputs low
Outputs disabled
V
VCC–2
VCC–2
VOH
2.4
3.2
2.4
3.2
V
2
2
VOL
0.25
0.5
V
0.35
0.5
50
–50
0.1
20
–0.5
–112
IOZH
IOZL
II
IIH
IIL
IO
50
μ
A
μ
A
mA
μ
A
mA
mA
–50
0.1
20
–0.5
–112
–30
–30
36
58
56
38
60
58
60
94
92
62
97
95
36
58
56
38
60
58
60
94
92
62
97
95
’AS841
ICC
VCC= 5 5 V
VCC = 5.5 V
mA
’AS842
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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