PI74LPT16244 3.3V, 16-Bit Buffer/Line Driver Product Features:

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PI74LPT16244 3.3V, 16-Bit Buffer/Line Driver Product Features:

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PI74LPT16244 3.3V, 16-Bit Buffer/Line Driver
Product Features:
Compatible with families products Supports Tolerant Mixed Signal Mode Operation Input Output connected Advanced Power CMOS Operation Excellent output drive capability: Balanced drives sink source) compatible with industry standard double-density pinouts ground bounce outputs Hysteresis inputs Industrial operating temperature range: 40°C +85°C Multiple center pins distributed Vcc/GND pins minimize switching noise Packages available: 48-pin wide thin plastic TSSOP 48-pin wide plastic SSOP
Product Description:
Pericom Semiconductors PI74LPT series logic circuits produced Companys advanced micron CMOS technology, achieving industry leading speed grades. PI74LPT16244 16-bit buffer/line driver designed driving high capacitive memory loads. With balanced-drive characteristics, this high-speed, power device provides lower ground bounce, transmission line matching signals, fewer line reflections lower effects. This makes ideal driving on-board buses transmission lines. This device designed with threestate controls operate Quad-Nibble, Dual-Byte, single 16bit word mode. PI74LPT16244 driven from either 3.3V 5.0V devices allowing this device used translator mixed 3.3/5.0V system.
PS2067A
01/15/97
Product Configuration
PI74LPT16244 3.3V, 16-Bit Buffer/Line Driver
Product Description
Name Description 3-State Output Enable Inputs (Active LOW) Inputs 3-State Outputs Ground Power
Truth Table
Inputs(1)
Outputs(1)
Note: High Voltage Level, Don't Care, Voltage Level, High Impedance
48-PIN 48-PIN
Capacitance 25°C, MHz)
Parameters(1) COUT Description Input Capacitance Output Capacitance Test Conditions VOUT Max. Units
Note: This parameter determined device characterization production tested.
PS2067A 01/15/97
PI74LPT16244 3.3V, 16-Bit Buffer/Line Driver
Maximum Ratings
(Above which useful life impaired. user guidelines, tested.) Storage Temperature -55°C +125°C Ambient Temperature with Power Applied -40°C +85°C Supply Voltage Ground Potential (Inputs Only) -0.5V +7.0V Supply Voltage Ground Potential (Outputs Only) -0.5V +7.0V Input Voltage -0.5V +7.0V Output Current Power Dissipation 1.0W Note: Stresses greater than those listed under MAXIMUM RATINGS cause permanent damage device. This stress rating only functional operation device these other conditions above those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect reliability.
Electrical Characteristics (Over Operating Range, -40°C +85°C, 2.7V 3.6V)
Parameters IOZH IOZL IODH IODL Description Input HIGH Voltage (Input pins) Input HIGH Voltage (I/O pins) Input Voltage (Input pins) Input HIGH Current (Input pins) Input HIGH Current (I/O pins) Input Current (Input pins) Input Current (I/O pins) High Impedance Output Current (3-State Output pins) Clamp Diode Voltage Output HIGH Current Output Current Output HIGH Voltage Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic Level Max. 5.5V Max. Max. Max. Max. VOUT 5.5V Max. VOUT Min., 3.3V, VIL, 1.5V(3) 3.3V, VIL, 1.5V(3) Min. 3.0V, Min. Max.(3), VOUT VOUT 4.5V Min. Vcc-0.2 2.4(5) Typ(2) Max. ±100 Units
Output Voltage
IOFF
Short Circuit Current(4) Power Down Disable Input Hysteresis
Notes: Max. Min. conditions, appropriate value specified under Electrical Characteristics applicable device type. Typical values 3.3V, +25°C ambient maximum loading. more than output should shorted time. Duration test should exceed second. This parameter guaranteed tested. 0.6V rated current.
PS2067A
01/15/97
PI74LPT16244 3.3V, 16-Bit Buffer/Line Driver
Typ(2)
Power Supply Characteristics
Parameters Description ICCD Quiescent Power Supply Current Quiescent Power Supply Current Inputs HIGH Dynamic Power Supply(4) Test Conditions(1) Max. Max. Max., Outputs Open Toggling Duty Cycle Max., Outputs Open Duty Cycle Toggling Max., Outputs Open Duty Cycle Bits Toggling 0.6V(3) Min. Max. Units
Total Power Supply Current(6)
0.6V
0.6V
3.3(5)
Notes: ForMax. Min. conditions, appropriate value specified under Electrical Characteristics applicable device. Typical values 3.3V, +25°C ambient. driven input; other inputs GND. This parameter directly testable, derived Total Power Supply Calculations. Values these conditions examples formula. These limits guaranteed tested. =IQUIESCENT IINPUTS IDYNAMIC DHNT ICCD (fCP/2 fINI) Quiescent Current (ICCL, ICCH ICCZ) Power Supply Current High Input Duty Cycle Inputs High Number Inputs ICCD Dynamic Current Caused Input Transition Pair (HLH LHL) Clock Frequency Register Devices (Zero Non-Register Devices) Number Clock Inputs Input Frequency Number Inputs currents milliamps frequencies megahertz.
PS2067A 01/15/97
PI74LPT16244 3.3V, 16-Bit Buffer/Line Driver
Switching Characteristics over Operating Range(1)
LPT16244 Com. Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Description Propagation Delay Output Enable Time Output Disable Time(4) Output Skew(5) Conditions
LPT16244A Com.
LPT16244C Com.
Unit
Notes: Propagation Delays Enable/Disable times with 3.3V ±0.3V, normal range. 2.7V, extended range, Propagation Delays Enable/Disable times should degraded 20%. test circuit wave forms. Minimum limits guaranteed tested Propagation Delays. This parameter guaranteed production tested. Skew between outputs, same package, switching same direction. This parameter guaranteed design.
Pericom Semiconductor Corporation 2380 Bering Drive Jose, 95131 1-800-435-2336 (408) 435-1100 http://www.pericom.com
PS2067A 01/15/97

PI74LPT16244 3.3V, 16-Bit Buffer/Line Driver Product Features:

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