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PDF 74ALS245A-1 Data sheet ( Hoja de datos )
| Número de pieza | 74ALS245A-1 | |
| Descripción | Octal transceiver 3-State | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
74ALS245A/74ALS245A–1
Octal transceiver (3–State)
Product specification
IC05 Data Handbook
1991 Jun 03
Philips
Semiconductors
1 page  
Philips Semiconductors
Octal transceiver (3-State)
Product specification
74ALS245A/74ALS245A-1
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS1
LIMITS
MIN TYP2 MAX
UNIT
VOH High-level output voltage
VCC±10%, VIL = MAX,
VIH = MIN
VCC = MIN, VIL = MAX,
VIH = MIN
IOH = –0.4mA
IOH = –3mA
IOH = –15mA
VCC – 2
2.4
2.0
3.2
V
V
V
VOL
Low-level output voltage
All versions
VCC = MIN, VIL = MAX,
VIH = MIN
IOL = 12mA
IOL = 24mA
-1 version
VCC = 4.75V, VIL = MAX,
VIH = MIN
IOL = 48mA
0.25 0.40
0.35 0.50
0.35 0.50
V
V
V
VIK Input clamp voltage
VCC = MIN, II = IIK
–0.73 –1.5
V
II
Input current at maxi-
mum input voltage
OE or T/R VCC = MAX, VI = 7.0V
A or B ports VCC = MAX, VI = 5.5V
0.1 mA
0.1 mA
IIH High-level input current3
VCC = MAX, VI = 2.7V
20 µA
IIL Low-level input current3
VCC = MAX, VI = 0.4V
–0.1 mA
IO Output current4
VCC = MAX, VO = 2.25V
–30
–112
mA
ICCH
28 45 mA
ICC Supply current (total)
ICCL
VCC = MAX
40 55 mA
ICCZ
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 VCC = 5V, Tamb = 25°C.
3. For I/O ports, the parameter IIH and IIL 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, IOS.
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation delay
An to Bn, Bn to An
Output enable time
to High or Low level
Output disable time
from High or Low level
TEST CONDITION
Waveform 1
Waveform 2
Waveform 3
Waveform 2
Waveform 3
LIMITS
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
MIN MAX
2.0 10.0
2.0 10.0
3.0 20.0
3.0 20.0
2.0 10.0
4.0 15.0
UNIT
ns
ns
ns
1991 Jun 03
5
5 Page | ||
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