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參數(shù)資料
| 型號(hào)： | 74ALS244A-1N |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | CRYSTAL 9.84375 MHZ PF SMD |
| 中文描述： | ALS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-20 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 110K |
| 代理商： | 74ALS244A-1N |
Philips Semiconductors
Product specification
74ALS244A/74ALS244A-1
Octal buffer (3-State)
1991 Feb 08
4
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS
1
LIMITS
UNIT
MIN
TYP
2
MAX
V
±
10%, V
= MAX,
CC
V
IH
= MIN
I
OH
= –0.4mA
I
OH
= –3mA
V
CC
– 2
2.4
V
V
OH
High-level output voltage
High level out ut voltage
IL
3.2
V
V
CC
= MIN, V
IL
= MAX,
V
IH
= MIN
I
OH
= –15mA
2.0
V
All versions
V
= MIN, V
= MAX,
CC
V
IH
= MIN
I
OL
= 12mA
I
OL
= 24mA
0.25
0.40
V
V
OL
Low-level output voltage
Low level out ut voltage
IL
0.35
0.50
V
-1 version
V
CC
= 4.75V, V
IL
= MAX,
V
IH
= MIN
V
CC
= MIN, I
I
= I
IK
V
CC
= MAX, V
I
= 7.0V
V
CC
= MAX, V
I
= 2.7V
V
CC
= MAX, V
I
= 0.4V
I
OL
= 48mA
0.35
0.50
V
V
IK
I
I
I
IH
I
IL
Input clamp voltage
–0.73
–1.5
V
Input current at maximum input voltage
0.1
mA
High-level input current
20
μ
A
Low-level input current
–0.1
mA
I
OZH
Off-state output current,
High-level voltage applied
V
CC
= MAX, V
I
= 2.7V
20
μ
A
I
OZL
Off-state output current,
Low-level voltage applied
Output current
3
V
CC
= MAX, V
I
= 0.4V
–20
μ
A
I
O
V
CC
= MAX, V
O
= 2.25V
–30
–112
mA
I
CCH
I
CCL
I
CCZ
6.5
15
mA
I
CC
Supply current (total)
V
CC
= MAX
19.5
24
mA
25
30
mA
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V
CC
= 5V, T
amb
= 25
°
C.
3. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
OS
.
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITION
T
amb
= 0
°
C to +70
°
C
V
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
UNIT
MIN
MAX
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation delay
In to Yn
Waveform 1
1.5
1.5
10.0
10.0
ns
Output enable time
to High or Low level
Waveform 2
Waveform 3
1.0
2.5
10.0
12.0
ns
Output disable time
from High or Low level
Waveform 2
Waveform 3
2.5
2.5
10.0
12.0
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74ALS244A | Octal buffer (3-State)(八通道緩沖器（三態(tài)）) |
| 74ALS244 | Octal buffer 3-State |
| 74ALS244AD | Octal buffer 3-State |
| 74ALS244ADB | Octal buffer 3-State |
| 74ALS244AN | Octal buffer 3-State |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74ALS244AD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal buffer 3-State |
| 74ALS244ADB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal buffer 3-State |
| 74ALS244AN | 制造商:NXP Semiconductors 功能描述: 制造商:Texas Instruments 功能描述: 制造商:Fairchild Semiconductor Corporation 功能描述:Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, DIP 制造商:North American Philips Discrete Products Div 功能描述:Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, DIP 制造商:NXP Semiconductors 功能描述:Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, DIP |
| 74ALS244B | 制造商:TI 功能描述:74ALS244 T.I. IN S3D8A |
| 74ALS244NTI88 | 制造商:TI 功能描述:74ALS244N |
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