pi74lpt244 Pericom Semiconductor Corporation, pi74lpt244 Datasheet - Page 5

• Manufacturer Part Number: pi74lpt244
• Description: Octal Buffer/line Driver, Oe Active Low
• Manufacturer: Pericom Semiconductor Corporation

Switching Characteristics over Operating Range
Notes:
1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V ±0.3V, normal range. For Vcc = 2.7V, extended range, all Propagation Delays
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
4. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.
Packaging Mechanical: 20-pin QSOP (Q)
t
t
t
t
t
t
t
Parameters
PLH
PHL
PZH
PZL
PHZ
PLZ
SK(
and Enable/Disable times should be degraded by 20%.
O
)
06-0181
Propagation Delay
D
Output Enable Time
OEx to Oxx
Output Disable Time
OEx to Oxx
Output Skew
XX
to O
Description
20
1
XX
X.XX
X.XX
0.635
BSC
.025
(4)
.058
1.47
.337
.344
DENOTES DIMENSIONS
IN MILLIMETERS
REF
8.56
8.74
.008
.012
(3)
0.203
0.305
Conditions
R
C
L
L
.150
.157
= 500Ω
= 50pF
.053
.069
.004
.010
3.81
3.99
1.35
1.75
0.101
0.254
(1)
Min.
SEATING
PLANE
1.5
1.5
1.5
5
LPT244
(2)
Com.
Guage Plane
Max
6.5
8.0
7.0
0.5
.010
0.254
Detail A
Min.
.016
.050
1.5
1.5
1.5
.015 x 45˚
0.38
LPT244A
.228
.244
5.79
6.19
(2)
Com.
0.41
1.27
.041
1.04
REF
3.3V 8-Bit Buffer /Line Driver
.016
.035
0.41
0.89
Max.
4.8
6.2
5.6
0.5
.008
0.20
MIN.
Detail A
.008
.013
0.20
0.33
0˚-6˚
Min.
1.5
1.5
1.5
LPT244C
.007
.010
Com.
(2)
0.178
0.254
PI74LPT244
Max.
4.1
5.8
5.2
0.5
PS2058F
Units
06/05/06
ns