PI74LPT16244 Datasheet, PDF (1/5 Pages) Pericom Semiconductor Corporation – 3.3V, 16-Bit Buffer/Line Driver

PI74LPT16244
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Product Features:
• Compatible with LCX™ and LVT™ families of products
• Supports 5V Tolerant Mixed Signal Mode Operation
– Input can be 3V or 5V
– Output can be 3V or connected to 5V bus
• Advanced Low Power CMOS Operation
• Excellent output drive capability:
Balanced drives (24 mA sink and source)
• Pin compatible with industry standard double-density
pinouts
• 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
minimize switching noise
• Packages available:
– 48-pin 240 mil wide thin plastic TSSOP (A)
– 48-pin 300 mil wide plastic SSOP (V)
1
Product Description:
2
Pericom Semiconductor’s PI74LPT series of logic circuits are pro-
duced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
3
The PI74LPT16244 is a 16-bit buffer/line driver designed for driving
high capacitive memory loads. With its balanced-drive characteristics,
this high-speed, low power device provides lower ground bounce,
4 ^{transmission line matching of signals, fewer line reflections and}
lower EMI and RFI effects. This makes it ideal for driving on-board
buses and transmission lines. This device is designed with three-
5 ^{state controls to operate in a Quad-Nibble, Dual-Byte, or a single 16-}
bit word mode.
The PI74LPT16244 can be driven from either 3.3V or 5.0V devices
allowing this device to be used as a translator in a mixed
3.3/5.0V system.
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Logic Block Diagram
1OE
1A0
3OE
1Y0
3A0
7
3Y0
8
1A1
1Y1
3A1
3Y1
9
1A2
1Y2
3A2
3Y2
10
1A3
1Y3
3A3
3Y3
11
2OE
2A0
2A1
2A2
2A3
4OE
2Y0
4A0
2Y1
4A1
2Y2
4A2
2Y3
4A3
12
4Y0
13
4Y1
14
4Y2
15
4Y3
1
PS2067A 01/15/97