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參數(shù)資料
| 型號： | 74F280B |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 9-bit odd/even parity generator/checker(9位奇偶發(fā)生器/校驗器) |
| 中文描述： | 9位奇/偶校驗發(fā)生器/檢查（9位奇偶發(fā)生器/校驗器） |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 106K |
| 代理商： | 74F280B |
Philips Semiconductors
Product specification
74F280B
9-bit odd/even parity generator/checker
1996 Mar 12
5
AC ELECTRICAL CHARACTERISTICS
LIMITS
TEST
T
amb
= +25
°
C
= +5 V
V
CC
= +5.V
C
L
= 50pF,
R
L
= 500
Min
Typ
T
amb
= 0
°
C to +70
°
C
= +5 V
±
10%
V
CC
= +5.V
C
L
= 50pF,
R
L
= 500
Min
T
amb
= -40
°
C to +85
°
C
= +5 V
±
10%
V
CC
= +5.V
C
L
= 50pF,
R
L
= 500
Min
SYMBOL
PARAMETER
CONDITIONS
UNIT
Max
Max
Max
t
PLH
t
PHL
t
PLH
t
PHL
Propagation delay
I
0
- I
8
to
Σ
E
Propagation delay
I
0
- I
8
to
Σ
O
74F280B
Waveform 1, 2
4.0
4.0
6.5
7.0
9.0
10.0
3.5
3.5
10.0
11.1
3.0
3.5
11.0
12.0
ns
ns
Waveform 1, 2
4.0
4.0
6.5
7.0
9.0
10.0
3.5
3.5
10.0
11.0
3.0
3.5
11.0
12.0
ns
ns
AC WAVEFORMS
For all waveforms, V
M
=1.5V.
V
M
V
M
V
M
V
M
I
0
- I
8
Σ
E,
Σ
O
t
PHL
t
PLH
SF00848
Waveform 1. Propagation Delay for Inverting Outputs
V
M
V
M
V
M
V
M
I
0
- I
8
Σ
E,
Σ
O
t
PLH
t
PHL
SF00850
Waveform 2. Propagation Delay for Non-Inverting Outputs
TEST CIRCUIT AND WAVEFORM
t
w
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
90%
V
M
10%
NEGATIVE
PULSE
POSITIVE
PULSE
t
w
AMP (V)
0V
0V
t
THL (
t
f
)
INPUT PULSE REQUIREMENTS
rep. rate
t
w
t
TLH
2.5ns
t
THL
2.5ns
1MHz
500ns
Input Pulse Definition
V
CC
family
74F
D.U.T.
PULSE
GENERATOR
R
L
C
L
R
T
V
IN
V
OUT
Test Circuit for Totem-Pole Outputs
DEFINITIONS:
R
L
=
Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
Termination resistance should be equal to Z
OUT
of
pulse generators.
C
L
=
R
T
=
t
THL (
t
f
)
t
TLH (
t
r
)
t
TLH (
t
r
)
AMP (V)
amplitude
3.0V
1.5V
V
M
SF00006
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74F280PC | 9-Bit Parity Generator/Checker |
| 74F280SC | 9-Bit Parity Generator/Checker |
| 74F280SJ | 9-Bit Parity Generator/Checker |
| 74F280 | 9-Bit Parity Generator/Checker |
| 74F280PC | 9-Bit Parity Generator/Checker |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F280BD | 制造商:SIG 功能描述:74F280 SIG'88 SMT TUBES N9F8A |
| 74F280BN | 制造商:NXP Semiconductors 功能描述:9-BIT ODD/EVEN PAR GEN CHECKER |
| 74F280D | 制造商:Motorola Inc 功能描述: |
| 74F280DC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Parity Generator/Checker |
| 74F280LC | 制造商:Texas Instruments 功能描述: |
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