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參數(shù)資料
| 型號： | SN54ABT540 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Octal Buffers/Drivers With 3-State Outputs(八緩沖器/驅(qū)動器(三態(tài)輸出)) |
| 中文描述： | 八路緩沖器/驅(qū)動器與3態(tài)輸出（八緩沖器/驅(qū)動器（三態(tài)輸出）） |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 124K |
| 代理商： | SN54ABT540 |
SN54ABT540, SN74ABT540
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCBS188C – FEBRUARY 1991 – REVISED JANUARY 1997
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25
°
C
TYP
SN54ABT540
MIN
SN74ABT540
MIN
UNIT
MIN
MAX
MAX
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5 V,
II = –18 mA
IOH = –3 mA
IOH = –3 mA
IOH = –24 mA
IOH = –32 mA
IOL = 48 mA
IOL = 64 mA
–1.2
–1.2
–1.2
V
VOH
2.5
2.5
2.5
V
3
3
3
VCC= 4 5 V
VCC = 4.5 V
2
2
2*
2
VOL
VCC= 4 5 V
VCC = 4.5 V
0.55
0.55
V
0.55*
0.55
Vhys
II
IOZH
IOZL
Ioff
ICEX
IO
100
mV
μ
A
μ
A
μ
A
μ
A
μ
A
mA
μ
A
mA
μ
A
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 0,
VCC = 5.5 V, VO = 5.5 V
VCC = 5.5 V,
VI = VCC or GND
VO = 2.7 V
VO = 0.5 V
VI or VO
≤
4.5 V
Outputs high
±
1
50
±
1
50
±
1
50
–50
±
100
50
–50
–50
±
100
50
50
VO = 2.5 V
Outputs high
–50
–100
–180
–50
–180
–50
–180
ICC
VCC = 5.5 V, IO = 0,
VI = VCC or GND
5 5 V I
1
250
250
250
Outputs low
24
30
30
30
Outputs disabled
0.5
250
250
250
Data
inputs
VCC = 5.5 V,
One input at 3.4 V,
Other inputs at
VCC or GND
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
Outputs enabled
1.5
1.5
1.5
ICC§
Outputs disabled
0.05
0.05
0.05
mA
Control
inputs
1.5
1.5
1.5
Ci
Co
3
pF
8
pF
* On products compliant to MIL-PRF-38535, this parameter does not apply.
All typical values are at VCC = 5 V.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
§This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C
L
= 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25
°
C
MIN
1
SN54ABT540
SN74ABT540
UNIT
TYP
2.9
MAX
4.1
MIN
MAX
MIN
MAX
4.8
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A
Y
1
1
ns
1
3.1
4.3
1
1
4.8
OE
Y
1.1
3.4
4.9
1.1
1.1
5.9
ns
1.1
3
5.8
1.1
1.1
6.4
OE
Y
1.5
5.3
6.8
1.5
1.5
7.3
ns
1.2
4.4
5.7
1.2
1.2
6.2
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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