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參數(shù)資料
| 型號： | 74LV244 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal buffer/line driver; (3-State)(八緩沖器/線驅動器（三態(tài)）) |
| 中文描述： | 八路緩沖器/線路驅動器（3態(tài)）（八緩沖器/線驅動器（三態(tài)）） |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 114K |
| 代理商： | 74LV244 |
Philips Semiconductors
Product specification
74LV244
Octal buffer/line driver (3-State)
1998 May 20
6
AC CHARACTERISTICS
GND = 0V; t
r
= t
f
≤
2.5ns; C
L
= 50pF; R
L
=1K
CONDITION
LIMITS
SYMBOL
PARAMETER
WAVEFORM
–40 to +85
°
C
–40 to +125
°
C
UNIT
V
CC
(V)
MIN
TYP
1
MAX
MIN
MAX
1.2
50
Propagation delay
Pro agation delay
1A
n
to 1Y
n
;
2A to 2Y
n
2.0
17
24
31
t
PHL/
t
PLH
Figures 1, 2
2.7
13
17
23
ns
3.0 to 3.6
9
2
14
18
4.5 to 5.5
12
15
1.2
65
3-State output enable time
3-State out ut enable time
1OE to 1Y
n
;
2OE to 2Y
n
2.0
22
39
49
t
PZH/
t
PZL
Figures 2, 3
2.7
16
29
36
ns
3.0 to 3.6
12
2
23
29
4.5 to 5.5
19
24
1.2
60
3-State output disable time
3-State out ut disable time
1OE to 1Y
n
;
2OE to 2Y
n
2.0
22
34
43
t
PHZ/
t
PLZ
Figures 2, 3
2.7
17
24
32
ns
3.0 to 3.6
13
2
21
26
4.5 to 5.5
16
19
NOTES:
1. Unless otherwise stated, all typical values are measured at T
amb
= 25
°
C.
2. Typical values are measured at V
CC
= 3.3 V.
AC WAVEFORMS
V
M
= 1.5 V at V
CC
≥
2.7 V and
≤
3.6 V
V
M
= 0.5
×
V
CC
at V
CC
<
2.7 V and
≥
4.5 V
V
OL
and V
OH
are the typical output voltage drop that occur with the
output load.
V
X
= V
OL
+ 0.3 V at V
CC
≥
2.7 V and
≤
3.6 V
V
X
= V
OL
+ 0.1
×
V
CC
at V
CC
<
2.7 V and
≥
4.5 V
V
Y
= V
OH
– 0.3 V at V
CC
≥
2.7V and
≤
3.6 V
V
Y
= V
OH
– 0.1
×
V
CC
at V
CC
<
2.7 V and
≥
4.5 V
SV00617
V
M
1A
, 2A
n
INPUTS
1Y
, 2Y
n
OUTPUT
V
M
t
PLH
t
PHL
GND
V
OL
V
I
V
OH
Figure 1. Input (1A
n
, 2A
n
) to output (1Y
n
, 2Y
n
)
propagation delays.
SV00623
outputs
disabled
outputs
enabled
outputs
enabled
t
PHZ
t
PZH
t
PZL
t
PLZ
Q
OFF-to-HIGH
Q
OFF-to-LOW
V
M
V
M
OE INPUT
V
X
V
OL
V
OH
V
Y
GND
GND
V
CC
V
I
V
M
n
OUTPUT
n
OUTPUT
Figure 2. 3-State enable and disable times.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 74LV244A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS |
| 74LV244APWJ | 功能描述:74LV244APW/SOT360/TSSOP20 制造商:nexperia usa inc. 系列:* 零件狀態(tài):在售 標準包裝:2,500 |
| 74LV244AT | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS |
| 74LV244ATPWJ | 功能描述:74LV244ATPW/SOT360/TSSOP20 制造商:nexperia usa inc. 系列:* 零件狀態(tài):在售 標準包裝:2,500 |
| 74LV244D | 功能描述:緩沖器和線路驅動器 3.3V BUR/DRVR 3-S OE ACTIVE LO RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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