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PI74LPT16952B Datasheet(PDF) 1 Page - Pericom Semiconductor Corporation

Part # PI74LPT16952B
Description  Fast CMOS 3.3V 16-Bit Registered Transceivers
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Manufacturer  PERICOM [Pericom Semiconductor Corporation]
Direct Link  http://www.pericom.com
Logo PERICOM - Pericom Semiconductor Corporation

PI74LPT16952B Datasheet(HTML) 1 Page - Pericom Semiconductor Corporation

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PI74LPT16952
3.3V 16-BIT REGISTERED TRANSCEIVERS
1
PS2076A 02/4/97
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PI74LPT16952
Fast CMOS 3.3V 16-Bit Registered Transceivers
D
1
CLKAB
C
1
OEAB
1
CEAB
1
CLKBA
1
CEBA
1
B0
TO 7 OTHER CHANNELS
D
C
1
A0
1
OEBA
D
2
CLKAB
C
2
OEAB
2
CEAB
2
CLKBA
2
CEBA
2
B0
TO 7 OTHER CHANNELS
D
C
2
A0
2
OEBA
Logic Block Diagram
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:
– 56-pin 240 mil wide plastic TSSOP (A)
– 56-pin 300 mil wide plastic SSOP (V)
Product Description
Pericom Semiconductor’s PI74LPT series of logic circuits are
produced in the Company’s advanced 0.6 micron CMOS technology,
achieving industry leading speed grades.
The PI74LPT16952 is a 16-bit registered transceivers organized
with two sets of eight D-type latches with separate input and output
controls for each set. For data flow from A to B, for example, the A-
to-B Enable (xCEAB) input must be LOW to enter data from xAx.
The data present on the A port will be clocked on the B register when
xCLKAB toggles from LOW-to-HIGH. The xOEAB control
performs the output enable function on the B port. Control of data
from B to A is similar, but uses the xCEAB, xCLKAB, and xOEAB
inputs. By connecting the control pins of the two independent
transceivers together, a full 16-bit operation can be achieved. The
output buffers are designed with a Power-Off disable allowing “live
insertion” of boards when used as backplane drivers.
The PI74LPT16952 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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