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參數(shù)資料
| 型號(hào)： | 74ALS540 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 八路緩沖器和線路驅(qū)動(dòng)器，三態(tài)輸出 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 512K |
| 代理商： | 74ALS540 |
SN54ALS541, SN74ALS540, SN74ALS541
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SDAS025D
–
APRIL 1982
–
REVISED MARCH 2002
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS541
SN74ALS540
SN74ALS541
TYP
UNIT
MIN
TYP
MAX
MIN
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
II =
–
18 mA
IOH =
–
0.4 mA
IOH =
–
3 mA
IOH =
–
12 mA
IOH =
–
15 mA
IOL = 12 mA
IOL = 24 mA
IOL = 48 mA
VO = 2.7 V
VO = 0.4 V
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
Outputs high
–
1.2
–
1.2
V
VCC
–
2
2.4
VCC
–
2
2.4
VOH
3.2
3.2
V
VCC = 4.5 V
2
2
0.25
0.4
0.25
0.4
VOL
VCC = 4.5 V
0.35
0.5
V
0.35
0.5
IOZH
IOZL
II
IIH
IIL
IO
§
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
20
20
μ
A
μ
A
mA
μ
A
mA
–
20
–
20
0.1
0.1
20
20
–
0.2
–
0.1
–
20
–
112
–
30
–
112
mA
5
10
SN74ALS540
VCC = 5.5 V
Outputs low
13
22
ICC
Outputs disabled
11
19
mA
Outputs high
6
14
6
14
’
ALS541
VCC = 5.5 V
Outputs low
Outputs disabled
15
25
32
15
25
22
13.5
13.5
Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V
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.
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = MIN to MAX
SN74ALS540
MAX
MIN
17
2
UNIT
SN54ALS541
MIN
4
SN74ALS541
MIN
4
MAX
MAX
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A
Y
12
14
ns
2
14
2
9
2
10
OE
Y
5
18
5
15
5
15
ns
8
28
8
20
8
20
OE
Y
1
2
12
14
1
2
10
12
1
2
10
12
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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