PI74LPT16244
3.3V, 16-Bit Buffer/Line Driver
1
2
Product Features:
CompatiblewithLCXandLVTfamiliesofproducts
Supports 5V Tolerant Mixed Signal Mode Operation
Input can be 3V or 5V
ProductDescription:
Pericom Semiconductors PI74LPT series of logic circuits are pro-
duced in the Companys advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
Output can be 3V or connected to 5V bus
Advanced Low Power CMOS Operation
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Excellentoutputdrivecapability:
ThePI74LPT16244isa16-bitbuffer/linedriverdesignedfor driving
highcapacitivememoryloads.Withitsbalanced-drivecharacteristics,
this high-speed, low power device provides lower ground bounce,
transmission line matching of signals, fewer line reflections and
lowerEMIandRFIeffects. Thismakesitidealfordrivingon-board
buses and transmission lines. This device is designed with three-
statecontrolstooperateinaQuad-Nibble,Dual-Byte,orasingle16-
bit word mode.
Balanced drives (24 mA sink and source)
Pin compatible with industry standard double-density
pinouts
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5
Low ground bounce outputs
Hysteresis on all inputs
Industrial operating temperature range: 40°C to +85°C
Multiple center pins and distributed Vcc/GND pins
minimizeswitchingnoise
ThePI74LPT16244canbedrivenfromeither3.3Vor5.0Vdevices
allowing this device to be used as a translator in a mixed
3.3/5.0Vsystem.
Packagesavailable:
48-pin240milwidethinplasticTSSOP(A)
48-pin300milwideplasticSSOP(V)
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Logic Block Diagram
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1OE
3OE
1
1
1
1
A
A
A
A
0
1
2
3
1
1
1
1
Y
Y
Y
Y
0
1
2
3
3
3
3
3
A
A
A
A
0
1
2
3
3
3
3
3
Y
Y
Y
Y
0
1
2
3
8
9
10
11
12
13
14
15
2
OE
4OE
2A
2A
2A
2
A
0
1
2
3
2Y
2Y
2Y
2
Y
0
1
2
3
4A
4A
4A
4
A
0
1
2
3
4Y
4Y
4Y
4
Y
0
1
2
3
PS2067A
01/15/97
1