DC Electrical Characteristics (Continued)
<
Note 4: For 8-bit toggling, I
1.4 mA/MHz.
CCD
Note 5: Guaranteed but not tested.
AC Electrical Characteristics
54ABT
TA −55˚C to +125˚C
=
Fig.
No.
=
Symbol
Parameter
VCC 4.5V–5.5V
Units
=
CL 50 pF
Min
125
2.2
1.7
1.5
1.5
1.5
1.5
1.0
1.9
1.5
1.5
1.0
2.2
1.5
1.5
Max
fmax
Max Clock Frequency
Propagation Delay
Clock to Bus
MHz
ns
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPZH
tPZL
tPHZ
tPLZ
8.8
8.8
7.9
7.9
8.1
8.9
7.3
8.8
9.3
9.3
7.7
9.5
8.7
9.2
Figure 8
Figure 8
Figure 8
Figure 10
Figure 10
Figure 10
Figure 10
Propagation Delay
Bus to Bus
ns
ns
ns
ns
ns
ns
Propagation Delay
SBA or SAB to An to Bn
Enable Time
OE to An or Bn
Disable Time
OE to An or Bn
Enable Time
DIR to An or Bn
Disable Time
DIR to An or Bn
AC Operating Requirements
54ABT
=
TA −55˚C to +125˚C
Fig.
No.
=
Symbol
Parameter
VCC 4.5V–5.5V
Units
=
CL 50 pF
Min
Max
tS(H)
Setup Time, HIGH
3.5
1.0
4.0
ns
ns
ns
Figure 11
Figure 11
Figure 9
tS(L)
tH(H)
tH(L)
or LOW Bus to Clock
Hold Time, HIGH
or LOW Bus to Clock
Pulse Width,
tW(H)
tW(L)
HIGH or LOW
Capacitance
Symbol
Parameter
Typ
Units
Conditions
=
TA 25˚C
VCC 0V (non I/O pins)
=
CIN
CI/O (Note 6)
Input Capacitance
Output Capacitance
5
pF
pF
=
VCC 5.0V (An, Bn)
11
=
C is measured at frequency, f 1 MHz, per MIL-STD-883B, Method 3012.
I/O
Note 6:
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6
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