74F655A 查看數據表（PDF） - Philips Electronics
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74F655A Datasheet PDF : 12 Pages
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Philips Semiconductors
Buffers/drivers
Product specification
74F655A*
74F656A
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONSNO TAG
LIMITS
MIN
TYP
NO TAG
MAX
UNIT
VOH
High-level output voltage
VOL
Low-level output voltage
VCC = MIN,
VIL = MAX
IOH = –3mA
±10%VCC
±5%VCC
2.4
2.7
3.3
V
V
VIH = MIN
IOH = –15mA ±10%VCC 2.0
V
VCC = MIN,
VIL = MAX
VIH = MIN
IOL = 64mA
±10%VCC
±5%VCC
0.55
V
0.42 0.55
V
VIK
Input clamp voltage
II
Input current at maximum input voltage
VCC = MIN, II = IIK
VCC = 0.0, VI = 7.0V
–0.73 –1.2
V
100
µA
Commercial Dn
IIH
High-level
input current
range
Industrial
Pl, OEn
Dn
range
Pl, OEn
VCC = MAX, VI = 2.7V
40
µA
20
µA
80
µA
40
µA
Dn
IIL
Low-level input current
Pl, OEn
VCC = MAX, VI = 0.5V
–40
µA
–20
µA
IOZH
Off-state current
High-level voltage applied
VCC = MAX, VO = 2.7V
50
µA
IOZL
Off-state current
Low-level voltage applied
VCC = MAX, VO = 0.5V
–50
µA
IOS
Short-circuit output current3
VCC = MAX
–100
–225
mA
ICC
Supply current
(total)
ICCH
ICCL
VCC = MAX
50
80
mA
78
110
mA
ICCZ
83
90
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. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, IOS tests should be performed last.
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST
CONDITIONS
Tamb = +25°C,
VCC = +5.0V
CL = 50pF,
RL = 500Ω
MIN TYP MAX
LIMITS
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF,
RL = 500Ω
MIN
MAX
Tamb = –40°C to +85°C
VCC = +5.0V ± 10%
CL = 50pF,
RL = 500Ω
MIN
MAX
UNIT
tPLH
tPHL
Propagation delay
Dn to Qn
74F655A
Waveform 2
2.0 4.5
1.0 2.5
6.5
4.0
2.0
1.0
7.5
4.5
2.0
1.0
tPLH
tPHL
Propagation delay
Dn to Qn
74F656A
Waveform 1
2.0 4.0
2.5 5.5
6.5
7.0
2.0
2.5
7.0
7.5
2.0
2.5
tPLH
Propagation delay
tPHL
Dn to ΣE, ΣO
Waveform 1, 2
5.5
5.5
10.0
11.0
13.0
14.5
5.5
5.5
14.0
16.5
4.5
5.5
tPZH
tPZL
Output enable time to
High or Low level
Waveform 3 3.5 7.0 10.5
3.5
11.5
3.0
Waveform 4 4.0 8.0 11.0
4.5
12.0
4.0
tPHZ
Output disable time from
tPLZ
High or Low level
Waveform 3 1.5 4.5 8.0
1.5
9.0
1.5
Waveform 4 2.0 5.0 8.0
2.0
9.0
1.5
8.5
ns
5.5
ns
8.0
ns
9.0
ns
16.5
ns
18.0
ns
13.0
ns
13.5
ns
10.0
ns
10.0
ns
* Discontinued part. Please see the Discontinued Products List.
1991 Jul 17
7
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