參數(shù)資料
型號(hào)： 74F240
廠商： National Semiconductor Corporation
英文描述： Octal Buffers/Line Drivers with TRI-STATE Outputs
中文描述： 八路緩沖器/線路驅(qū)動(dòng)器，三態(tài)輸出
文件頁(yè)數(shù)： 7/12頁(yè)
文件大小： 103K
代理商： 74F240
Philips Semiconductors
Product specification
74F240/74F240A/
74F241/74F241A
Buffers
January 2, 1991
7
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF, R
L
= 500
MIN
TYP
T
amb
= 0
°
C to +70
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
MIN
SYMBOL
PARAMETER
TEST
UNIT
CONDITION
MAX
MAX
t
PLH
t
PHL
Propagation delay
Ian, Ibn to Yn
Waveform 1
3.0
2.0
4.5
3.0
6.5
4.5
3.0
2.0
7.5
5.0
ns
t
PZH
t
PZL
Output enable time
to high or low level
74F240
Waveform 3
Waveform 4
3.0
4.5
5.0
6.5
7.5
8.5
3.0
4.0
9.0
10.0
ns
t
PHZ
t
PLZ
Output disable time
from high or low level
Waveform 3
Waveform 4
3.0
3.0
5.5
5.0
7.0
7.0
3.0
3.0
7.5
7.5
ns
t
PLH
t
PHL
Propagation delay
Ian, Ibn to Yn
Waveform 1
2.5
2.0
4.0
3.5
5.5
5.5
2.0
2.0
6.5
6.0
ns
t
PZH
t
PZL
Output enable time
to high or low level
74F240A
Waveform 3
Waveform 4
2.0
3.5
4.0
5.0
6.5
7.5
2.0
3.0
7.0
8.5
ns
t
PHZ
t
PLZ
Output disable time
from high or low level
Waveform 3
Waveform 4
2.0
1.5
3.5
2.5
6.0
5.0
1.5
1.0
6.5
5.5
ns
t
sk(0)
t
PLH
t
PHL
Output skew
1, 2
Waveform 5
1.5
2.0
ns
Propagation delay
Ian, Ibn to Yn
Waveform 2
2.5
2.5
4.0
4.0
5.2
5.2
2.5
2.5
6.2
6.5
ns
t
PZH
t
PZL
Output enable time
to high or low level
74F241
Waveform 3
Waveform 4
2.0
2.0
4.0
5.0
5.7
7.0
2.0
2.0
6.7
8.0
ns
t
PHZ
t
PLZ
Output disable time
from high or low level
Waveform 3
Waveform 4
2.0
2.0
4.0
4.0
6.0
6.0
2.0
2.0
7.0
7.0
ns
t
PLH
t
PHL
Propagation delay
Ian, Ibn to Yn
Waveform 2
2.5
2.5
4.5
4.5
5.8
5.8
2.5
2.5
6.5
6.5
ns
t
PZH
t
PZL
Output enable time
to high or low level
74F241A
Waveform 3
Waveform 4
2.5
3.5
4.5
5.0
6.0
7.0
2.0
3.0
6.7
8.0
ns
t
PHZ
t
PLZ
Output disable time
from high or low level
Waveform 3
Waveform 4
2.0
1.5
4.0
3.5
6.0
5.5
1.5
1.0
6.5
6.0
ns
t
sk(0)
Notes to AC electrical characteristics
1. | t
PN
actual – t
PM
actual| for any output compared to any other output where N and M are either LH or HL.
2. Skew times are valid only under same test conditions (temperature, V
CC
, loading, etc.,).
Output skew
1, 2
Waveform 5
1.5
2.0
ns
AC WAVEFORMS
Ian, Ibn
V
M
V
M
V
M
V
M
t
PLH
t
PHL
Yn
SF00328
Waveform 1. Propagation delay for inverting outputs
Ian, Ibn
V
M
V
M
V
M
V
M
t
PHL
t
PLH
Yn
SF00329
Waveform 2. Propagation delay for non–invertIng outputs
相關(guān)PDF資料
PDF描述
74F240PC Octal Buffers/Line Drivers with TRI-STATE Outputs
74F240SC Octal Buffers/Line Drivers with TRI-STATE Outputs
74F240SJ Octal Buffers/Line Drivers with TRI-STATE Outputs
74F240 Octal Buffers/Line Drivers with 3-STATE Outputs
74F240PC Octal Buffers/Line Drivers with 3-STATE Outputs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74F240_04 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Octal Buffers/Line Drivers with 3-STATE Outputs
74F240A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal inverter buffer 3-State
74F240AD 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Inverting Buffer/Driver
74F240AN 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual 4-Bit Inverting Buffer/Driver
74F240D 制造商:NXP Semiconductors 功能描述: 制造商:North American Philips Discrete Products Div 功能描述:Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 制造商:NXP Semiconductors 功能描述:Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP
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