PI74LPT244QX Pericom Semiconductor, PI74LPT244QX Datasheet

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PI74LPT244QX

Manufacturer Part Number
PI74LPT244QX
Description
Manufacturer
Pericom Semiconductor
Datasheet

Specifications of PI74LPT244QX

Logic Family
LPT
Logical Function
Buffer/Line Driver
Number Of Elements
2
Number Of Channels
8
Number Of Inputs
8
Number Of Outputs
8
Operating Supply Voltage (typ)
3.3V
Package Type
QSOP
Output Type
3-State
Polarity
Non-Inverting
Propagation Delay Time
8ns
High Level Output Current
-24mA
Low Level Output Current
24mA
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
2.7V
Quiescent Current
10uA
Technology
CMOS
Pin Count
20
Mounting
Surface Mount
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Dc
04+
Lead Free Status / Rohs Status
Not Compliant
Features
• Compatible with LCX™ and LVT™ families of products
• Supports 5V Tolerant Mixed Signal Mode Operation
• Advanced Low Power CMOS Operation
• Excellent output drive capability:
• Low ground bounce outputs
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Packages (Pb-free & Green available):
Block Diagram
– Input can be 3V or 5V
– Output can be 3V or connected to 5V bus
Balanced drives (24mA sink and source)
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
– 20-pin 209-mil wide plastic SSOP (H)
06-0181
1
Description
Pericom Semiconductor’s PI74LPT244 is an 8-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, 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.
The PI74LPT244 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.
Pin Configuration
GND
OE
OB
OB
OB
OB
DA
DA
DA
DA
A
0
0
1
1
2
2
3
3
1
2
3
4
5
6
7
8
9
10
20-PIN
Q20
S20
L20
Fast CMOS 3.3V 8-Bit
Buffer/Line Driver
20
19
18
17
16
15
14
13
12
11
PI74LPT244
V
OE
OA
DB
OA
DB
OA
DB
OA
DB
CC
B
0
0
1
1
2
2
3
3
PS2058F
06/05/06

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PI74LPT244QX Summary of contents

Page 1

... Block Diagram 06-0181 Fast CMOS 3.3V 8-Bit Description Pericom Semiconductor’s PI74LPT244 is an 8-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, 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 ...

Page 2

Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .............................................................. –55°C to +125°C Ambient Temperature with Power Applied ............................. –40°C to +85°C Supply Voltage to Ground Potential (Inputs & Vcc Only) ....... ...

Page 3

DC Electrical Characteristics Parameters Description Input HIGH Voltage (Input pins Input HIGH Voltage (I/O pins) Input LOW Voltage V IL (Input and I/O pins) Input HIGH Current (Input pins Input HIGH Current (I/O pins) V Input ...

Page 4

Capacitance (T = 25° MHz) A (1) Parameters Description C Input Capacitance IN C Output Capacitance OUT Notes: 1. This parameter is determined by device characterization but is not production tested. Power Supply Characteristics Parameters Description I ...

Page 5

Switching Characteristics over Operating Range Parameters Description t Propagation Delay PLH PHL Output Enable Time PZH t OEx to Oxx PZL t Output Disable Time PHZ t OEx to Oxx PLZ (4) t ...

Page 6

Packaging Mechanical: 20-pin TSSOP (L) �� � ���� ������ ��� ��� ���� ����� ��� ���� ���� ���� ���� Packaging Mechanical: 20-pin SOIC ( .496 12.60 .511 12.99 .020 0.508 .030 0.762 .050 BSC 1.27 06-0181 ���� ��� ���� ...

Page 7

Packaging Mechanical: 20-pin SSOP (H) �� � ���� ������� ���� ���� ����� ���� ���� 06-0181 ���� ���� ���� ���� ���� ��� ���� ������� ������ ���� ��� ����� ����� ���� ���� 7 PI74LPT244 3.3V 8-Bit Buffer /Line Driver ���� ���� ���� ...

Page 8

... PI74LPT244AHE Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • Pb-free and Green • Adding an X Suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 06-0181 Speed Grade Q Blank 20-pin 150-mil wide plastic QSOP Q Blank Pb-free & Green 20-pin 150-mil wide plastic QSOP ...

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