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參數(shù)資料
| 型號(hào)： | 74ALS245A-1DB |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal transceiver 3-State |
| 中文描述： | ALS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 5.30 MM, PLASTIC, SSOP-20 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 116K |
| 代理商： | 74ALS245A-1DB |
Philips Semiconductors
Product specification
74ALS245A/74ALS245A-1
Octal transceiver (3-State)
1991 Jun 03
5
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS
1
LIMITS
TYP
2
UNIT
MIN
V
CC
– 2
2.4
MAX
V
±
10%, V
= MAX,
CC
V
IH
= MIN
I
OH
= –0.4mA
I
OH
= –3mA
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
= 5.5V
V
CC
= MAX, V
I
= 2.7V
V
CC
= MAX, V
I
= 0.4V
V
CC
= MAX, V
O
= 2.25V
I
OL
= 48mA
0.35
0.50
V
V
IK
Input clamp voltage
–0.73
–1.5
V
I
I
Input current at maxi-
mum input voltage
OE or T/R
0.1
mA
A or B ports
0.1
mA
μ
A
mA
I
IH
I
IL
I
O
High-level input current
3
Low-level input current
3
Output current
4
20
–0.1
–30
–112
mA
I
CCH
I
CCL
I
CCZ
28
45
mA
I
CC
Supply current (total)
V
CC
= MAX
40
55
mA
44
58
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. For I/O ports, the parameter I
IH
and I
IL
include the off-state current.
4. 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
An to Bn, Bn to An
Waveform 1
2.0
2.0
10.0
10.0
ns
Output enable time
to High or Low level
Waveform 2
Waveform 3
3.0
3.0
20.0
20.0
ns
Output disable time
from High or Low level
Waveform 2
Waveform 3
2.0
4.0
10.0
15.0
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74ALS245A-1N | Octal transceiver 3-State |
| 74ALS245A-1 | Octal transceiver 3-State |
| 74ALS245A | Octal transceiver (3-State)(八通道收發(fā)器（三態(tài)）) |
| 74ALS245AD | Octal transceiver 3-State |
| 74ALS245ADB | Octal transceiver 3-State |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74ALS245A-1N | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal transceiver 3-State |
| 74ALS245AD | 制造商:North American Philips Discrete Products Div 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Plastic, SOP 制造商:NXP Semiconductors 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Plastic, SOP 制造商:Texas Instruments 功能描述:Bus Transceiver, Single, 8 Bit, 20 Pin, Plastic, SOP |
| 74ALS245ADB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal transceiver 3-State |
| 74ALS245ADW | 制造商:Texas Instruments 功能描述: |
| 74ALS245AN | 制造商:NXP Semiconductors 功能描述: |
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