74ALS651-1D 查看數據表（PDF） - Philips Electronics
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74ALS651-1D Datasheet PDF : 13 Pages
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Philips Semiconductors
Transceiver/register
Product specification
74ALS651/74ALS651-1
74ALS652/74ALS652-1
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS1
LIMITS
UNIT
MIN TYP2 MAX
VOH High-level output voltage
VOL
Low-level output
voltage
VIK
Input clamp voltage
All versions
-1 versions
VCC±10%, VIL = MAX,
IOH = –0.4mA VCC – 2
V
VIH = MIN
IOH = –3mA
2.4
3.2
V
VCC = MIN, VIL = MAX,
VIH = MIN
IOH = –15mA
2.0
V
VCC = MIN, VIL = MAX,
VIH = MIN
IOL = 12mA
IOL = 24mA
0.25 0.40
V
0.35 0.50
V
VCC = 4.75V, VIL = MAX,
VIH = MIN
IOL = 48mA
0.35 0.50
V
VCC = MIN, II = IIK
–0.73 –1.5
V
II
Input current at
maximum input voltage
control inputs
A or B ports
VCC = MAX, VI = 7.0V
VCC = MAX, VI = 5.5V
IIH
High-level input current3
VCC = MAX, VI = 2.7V
IIL
Low-level input current3
VCC = MAX, VI = 0.4V
IO
Output current4
VCC = MAX, VO = 2.25V
0.1
mA
0.1
mA
20
µA
–0.1 mA
–30
–112 mA
74ALS651/
74ALS651-1
ICCH
ICCL
VCC = MAX
32
50
mA
45
68
mA
ICC
Supply current (total)
ICCZ
ICCH
74ALS652/
74ALS652-1
ICCL
VCC = MAX
ICCZ
44
68
mA
36
58
mA
53
78
mA
49
72
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 FOR 74ALS651/74ALS651-1
SYMBOL
PARAMETER
TEST CONDITION
fmax
Maximum clock frequency
tPLH
Propagation delay
tPHL
CPBA to An, CPAB to Bn
tPLH
Propagation delay
tPHL
An to Bn or Bn to An
tPLH
Propagation delay
tPHL
SBA to An or SAB to Bn (A or B Low)
tPLH
Propagation delay
tPHL
SBA to An or SAB to Bn (A or B High)
tPZH
Output enable time
tPZL
OEBA to An
tPHZ
Output disable time
tPLZ
OEBA to An
tPZH
Output enable time
tPZL
OEAB to Bn
tPHZ
Output disable time
tPLZ
OEAB to Bn
Waveform 1
Waveform 1
Waveform NO TAG, 3
Waveform NO TAG, 3
Waveform NO TAG, 3
Waveform 7
Waveform 8
Waveform 7
Waveform 8
Waveform 7
Waveform 8
Waveform 7
Waveform 8
LIMITS
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF, RL = 500Ω
MIN
MAX
100
5.0
13.0
6.0
13.0
1.0
7.0
2.0
9.0
6.0
14.0
5.0
11.0
4.0
11.0
5.0
12.0
2.0
8.0
5.0
12.0
2.0
8.0
3.0
10.0
2.0
9.0
5.0
12.0
3.0
11.0
5.0
13.0
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
ns
1991 Feb 08
7
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