74ABT648D データシートの表示（PDF） - Philips Electronics
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74ABT648D Datasheet PDF : 14 Pages
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Philips Semiconductors
Octal bus transceiver/register, inverting (3-State)
Product specification
74ABT648
AC CHARACTERISTICS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω
SYMBOL
PARAMETER
WAVEFORM
fMAX
Maximum clock frequency
1
tPLH
Propagation delay
tPHL
CPAB to Bn or CPBA to An
1
tPLH
Propagation delay
2
tPHL
An to Bn or Bn to An
3
tPLH
Propagation delay
2
tPHL
SAB to Bn or SBA to An
3
tPZH
Output enable time
5
tPZL
OE to An or Bn
6
tPHZ
Output disable time
5
tPLZ
OE to An or Bn
6
tPZH
Output enable time
5
tPZL
DIR to An or Bn
6
tPHZ
Output disable time
5
tPLZ
DIR to An or Bn
6
LIMITS
Tamb = +25oC
VCC = +5.0V
Min
Typ
Max
125
200
2.2
5.3
6.8
1.7
5.9
7.4
1.0
3.6
5.1
1.5
4.2
5.6
1.5
4.9
6.1
1.5
5.4
6.9
1.0
4.3
5.3
2.1
5.5
7.4
1.5
6.2
7.3
1.5
6.0
7.0
1.2
4.8
5.7
2.5
6.0
9.0
1.5
5.9
6.7
1.5
6.3
7.2
Tamb = -40 to
+85oC
VCC = +5.0V ±0.5V
Min
Max
125
2.2
7.8
1.7
8.4
1.0
6.1
1.5
6.3
1.5
7.1
1.5
7.7
1.0
6.3
2.1
8.8
1.5
8.3
1.5
7.5
1.2
6.7
2.5
9.5
1.5
7.7
1.5
8.2
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
AC SETUP REQUIREMENTS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω
SYMBOL
PARAMETER
ts(H)
ts(L)
th(H)
th(L)
tw(H)
tw(L)
Setup time
An to CPAB, Bn to CPBA
Hold time
An to CPAB, Bn to CPBA
Pulse width, High or Low
CPAB or CPBA
WAVEFORM
4
4
1
LIMITS
Tamb = +25oC
VCC = +5.0V
Min
Typ
Tamb = -40 to +85oC
VCC = +5.0V ±0.5V
Min
3.0
1.5
3.0
3.0
1.0
3.0
0.0
–0.4
0.0
0.0
–1.0
0.0
3.5
2.6
3.5
4.0
1.0
4.0
UNIT
ns
ns
ns
1998 Jun 08
7
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