AC ELECTRICAL CHARACTERISTICS
1
(Port B = 5 Volt, Port A = 3.3 Volt)
(V
DD1
= 5V
±10%;
V
DD2
= 3.00V to 3.6V, -55°C < T
C
< +125
°C
)
(T
C
= -55
°C
to +125
°C
for "C" screening and -40° to +125°C for "W" screening
°
°
°C
°
SYMBOL
t
PLH
t
PHL
t
PZL
t
PZH
t
PLZ
t
PHZ
t
PZL 2
t
PZH2
t
PLZ 2
t
PHZ2
PARAMETER
Propagation delay Data to Bus
Propagation delay Data to Bus
Output enable time OEx to Bus
Output enable time OEx to Bus
Output disable time OEx to Bus high impedance
Output disable time OEx to Bus high impedance
Output enable time DIRx to Bus
Output enable time DIRx to Bus
Output disable time DIRx to Bus high impedance
Output disable time DIRx to Bus high impedance
MINIMUM
1
1
1
1
1
1
1
1
1
1
MAXIMUM
20
20
18
18
20
20
18
18
20
20
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes:
1. All specifications valid for radiation dose
≤
1E5 rad(Si) per MIL-STD-883, Method 1019.
2. DIRx to bus times are guaranteed by design, but not tested. OEx to bus times are tested.
Propagation Delay
Input
Output
t
PLH
t
PHL
V
DD
V
DD
/2
0V
V
OH
V
DD
/2
V
OL
Enable Disable Times
Control Input
5V Output
Normally Low
5V Output
Normally High
t
PZL
V
DD
/2-0.2
t
PZH
V
DD
/2+0.2
t
PZL
t
PLZ
.2V
DD
+ .2V
t
PHZ
.8V
DD
- .2V
t
PLZ
V
DD
/2-0.2
t
PZH
V
DD
/2+0.2
.2V
DD
+ .2V
t
PHZ
.7V
DD
- .2V
V
DD
V
DD
/2
0V
V
DD
/2
.2V
DD
.8V
DD
V
DD
/2
3.3V Output
Normally Low
3.3V Output
Normally High
V
DD
/2
.2V
DD
.7V
DD
V
DD
/2
7
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
