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Details, datasheet, quote on part number:PI74LCX244Q
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Datasheet text preview:
Product Features
· Functionally compatible with FCT3, LVT, and 74 series 244 families of products · Tri-State outputs · 5V Tolerant inputs and outputs · 2.0V-3.6V VCC supply operation · Balanced sink and source output drives (24 mA) · Low ground bounce outputs · Power Down High Impedance inputs and outputs · Supports live insertion · ESD Protection exceeds 2000V, Human Body Model 200V, Machine Model · Packages available: 20-pin 209-mil wide plastic SSOP (H) 20-pin 173-mil wide plastic TSSOP (L) 20-pin 150-mil wide plastic QSOP (Q) 20-pin 300-mil wide plastic SOIC (S)
Logic Block Diagram
OEA OEB DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3
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PI74LCX244
Fast CMOS 3.3V 8-Bit Buffer/Line Driver
Product Description
Pericom Semiconductor's PI74LCX series of logic circuits are produced using the Company's advanced 0.6 micron CMOS technology achieving high speed while maintaining low power operation. The PI74LCX244 is an 8-bit non-inverting 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 PI74LCX244 can be driven from either 3.3V or 5.0V devices allowing this device to be used as a translator in a mixed 3.3V/5.0V system.
Product Pin Configuration
OEA DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 GND
1 2 3 20-Pin 4 H20 L20 5 Q20 6 S20 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC OEB OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3
Product Pin Description
Pin Name OEA, OEB DXX Description 3-State Output Enable Inputs (Active LOW) Inputs Outputs Ground Power
Truth Table(1)
Inputs OEA L L H OEB L L H DXX L H X Outputs OXX L H Z
Note: 1. H = High Voltage Level, OXX X = Don't Care, GND L = Low Voltage Level, VCC Z = High Impedance
1
PS2098B
11/17/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74LCX244 3.3V 8-Bit Buffer/Line Driver
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature .... 65°C to +150°C Ambient Temperature with Power Applied .... 40°C to +85°C Supply Voltage to Ground Potential (Inputs & Vcc Only) ...... 0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) .. 0.5V to +7.0V DC Input Voltage ........... 0.5V to +7.0V DC Output Current ...... 120 mA Power Dissipation ... 1.0W Note: S t r e s s e s greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Recommended Operating Conditions
Symbol VCC VI VO IOH/IOL Parameter Supply Voltage Input Voltage Output Voltage Output Current HIGH or LOW State TRI-State VCC = 3.0V-3.6V VCC = 2.7V TA Free-Air Operating Temperature Input Edge Rate V = 0.8V-2.0V, VCC = 3.0V Operating Data Retention Min. 2.0 1.5 0 0 0 -40 0 Max. 3.6 3.6 5.5 VCC 5.5 ±24 ±12 +85 10 mA °C ns/V V Units
t/V
2
PS2098B
11/17/02
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321 21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74LCX244 3.3V 8-Bit Buffer/Line Driver
DC Electrical Characteristics (Over the Operating Range, TA = -40°C to +85°C, VCC = 2.7V to 3.6V)
Parameters VIH VIL VOH Description Input HIGH Voltage Input LOW Voltage Output HIGH Voltage Test Conditions(1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = 2.7-3.6 VCC = 2.7 VCC = 3.0 IOH = 0.1 mA IOH = 12 mA IOH = 18 mA IOH = 24 mA VOL Output LOW Voltage VCC = 2.7-3.6 VCC = 2.7 VCC = 3.0 IOL = 0.1 mA IOL = 12mA IOL = 16 mA IOL = 24 mA VIK II IOZ IOFF ICC Clamp Diode Voltage Input Leakage Current Tri-State Output Leakage Power Down Disable Quiescent Power Supply Current Quiescent Power Supply Current TTL Inputs HIGH VCC = Min., IIN = 18 mA 0 VI 5.5V 0 VO 5.5V VI = VIH or VIL Vcc = 2.7-3.6 VCC = 2.7-3.6 Min. 2.0 -- VCC-0.2 2.2 2.4 2.2 -- -- -- -- -- -- -- -- Typ(2) -- -- -- -- -- -- -- -- -- -- -0.7 -- -- -- 0.1 Max. -- 0.8 -- -- -- -- 0.2 0.4 0.4 0.55 -1.2 ±5 ±5 10 10 500 µA V Units
VCC = 0V, VIN or VOUT 5.5V VCC = Max. VCC = Max. VIN = GND or VCC VIN = VCC 0.6V(3)
ICC
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, +25°C ambient. 3. Per TTL driven input; all other inputs at Vcc or GND.
Capacitance
Parameters Description CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Test Conditions VCC = Open, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC VCC = 3.3V, VI = 0V or VCC, F = 10 MHz Typ. 7 8 25 pF Units
3
PS2098B
11/17/02
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