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74ALS645AN 数据表(PDF) 4 Page - NXP Semiconductors

部件名 74ALS645AN
功能描述  Octal transceiver 3-State
Download  8 Pages
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74ALS645AN 数据表(HTML) 4 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74ALS645A/74ALS645A-1
Octal transceiver (3-State)
1991 Jun 03
4
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS1
LIMITS
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS1
MIN
TYP2
MAX
UNIT
VCC±10%, VIL = MAX,
IOH = –0.4mA
VCC – 2
V
VOH
High-level output voltage
CC
,
IL
,
VIH = MIN
IOH = –3mA
2.4
3.2
V
VOH
High level out ut voltage
VCC = MIN, VIL = MAX,
VIH = MIN
IOH = –15mA
2.0
V
All versions
VCC = MIN, VIL = MAX,
IOL = 12mA
0.25
0.40
V
VOL
Low-level output voltage
All versions
CC
,
IL
,
VIH = MIN
IOL = 24mA
0.35
0.50
V
VOL
Low level out ut voltage
-1 version
VCC = 4.75V, VIL = MAX,
VIH = MIN
IOL = 48mA
0.35
0.50
V
VIK
Input clamp voltage
VCC = MIN, II = IIK
–0.73
–1.5
V
I
Input current at maxi-
OE or T/R
VCC = MAX, VI = 7.0V
0.1
mA
II
mum input voltage
A or B ports
VCC = MAX, VI = 5.5V
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
LIMITS
SYMBOL
PARAMETER
TEST CONDITION
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
UNIT
MIN
MAX
tPLH
tPHL
Propagation delay
An to Bn, Bn to An
Waveform 1
2.0
2.0
10.0
10.0
ns
tPZH
tPZL
Output enable time
to High or Low level
Waveform 2
Waveform 3
3.0
3.0
20.0
20.0
ns
tPHZ
tPLZ
Output disable time
from High or Low level
Waveform 2
Waveform 3
2.0
4.0
10.0
15.0
ns


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