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參數(shù)資料
| 型號： | 74F244 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal buffers 3-State |
| 中文描述： | 八路緩沖器三態(tài) |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 94K |
| 代理商： | 74F244 |
Philips Semiconductors
Product specification
74F244/74F244B
Octal buffers (3-State)
1994 Dec 5
6
AC ELECTRICAL CHARACTERISTICS FOR 74F244
A PORT LIMITS
T
amb
= 0
°
C to +70
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF,
R
L
= 500
MIN
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF,
R
L
= 500
MIN
TYP
T
amb
= -40
°
C to +85
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF,
R
L
= 500
MIN
SYMBOL
PARAMETER
TEST
UNIT
CONDITION
MAX
MAX
MAX
t
PLH
t
PHL
Propagation delay
Ian, Ibn to Yn
Waveform 1
2.5
2.5
4.0
4.0
5.2
5.2
2.0
2.0
6.2
6.5
1.5
2.0
7.0
7.0
ns
t
PZH
t
PZL
Output enable time
to high or low
Waveform 2
Waveform 4
2.0
2.0
4.3
5.0
5.7
7.0
2.0
2.0
6.7
8.0
2.0
2.0
8.0
8.5
ns
t
PHZ
t
PLZ
Output disable time
from high or low
Waveform 2
Waveform 4
1.5
1.5
2.5
2.5
5.5
5.5
1.0
1.0
6.0
5.5
1.0
1.0
6.0
5.5
ns
AC ELECTRICAL CHARACTERISTICS FOR 74F244B
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
t
PZH
t
PZL
t
PHZ
t
PLZ
t
sk(0)
Propagation delay
Ian, Ibn to Yn
Waveform 1
2.5
2.5
4.5
4.5
5.7
6.0
2.0
2.5
6.2
6.5
ns
Output enable time
to high or low level
Waveform 2
Waveform 4
2.0
3.0
4.0
5.5
6.0
7.5
2.0
3.0
6.5
8.0
ns
Output disable time
from high or low level
Output skew
1, 2
Waveform 2
Waveform 4
1.5
1.5
2.5
2.5
5.5
5.5
1.0
1.0
6.0
5.5
ns
Waveform 3
1.5
2.0
ns
NOTES:
1. |t
actual - t
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.,).
相關PDF資料 |
PDF描述 |
|---|---|
| 74F244B | Octal buffers 3-State |
| 74F244MSA | Octal Buffers/Line Drivers with TRI-STATE Outputs |
| 74F244PC | Octal Buffers/Line Drivers with TRI-STATE Outputs |
| 74F244SC | Octal Buffers/Line Drivers with TRI-STATE Outputs |
| 74F244SJ | Octal Buffers/Line Drivers with TRI-STATE Outputs |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 74F244B | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal buffers 3-State |
| 74F244D | 制造商:NXP Semiconductors 功能描述:OCTAL BUFFER 3-STATE |
| 74F244D FSC88 | 制造商:Fairchild Semiconductor 功能描述:74F244D |
| 74F244D SIG9118 | 制造商:SIG 功能描述:74F244D SIG S1I2B |
| 74F244D TI91/92 | 制造商:TI 功能描述:74F244D TI S1I2B |
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