PI74LCX240 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 3.3V 8-Bit Buffer/Line Driver Product Features Product Description • Functionally compatible with FCT3, LVT, and 74 series 240 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 300-mil wide plastic SOIC (S) 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 PI74LCX240 is an 8-bit 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. Logic Block Diagram The PI74LCX240 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 OEA DA0 OEB OB0 DA1 DA0 OB1 OA0 DA2 OB2 OB0 DA3 DB0 OB3 GND DA1 OA1 OB1 DB1 DA2 OA2 OB2 DB2 DA3 OA3 OB3 DB3 1 2 3 4 5 6 7 8 9 10 20-Pin H20 L20 S20 20 19 18 17 16 15 14 13 12 11 VCC Product Pin Description Pin Name Description OEA, OEB 3-State Output Enable Inputs (Active LOW) DXX Inputs OXX Outputs GND Ground VCC Power OEB OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 Truth Table(1) Inputs Outputs OEA OEB DXX OXX L L L H L L H L H H X Z Note: 1. H = High Voltage Level, X = Don’t Care, L = Low Voltage Level, Z = High Impedance 1 PS8630 09/19/02 PI74LCX240 3.3V 8-Bit Buffer/Line Driver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 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: Stresses 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 Parameter Supply Voltage VI Input Voltage VO Output Voltage IOH/IOL TA ∆t/∆V Output Current Min. Max. Operating 2.0 3.6 Data Retention 1.5 3.6 0 5.5 HIGH or LOW State 0 VCC TRI-State 0 5.5 VCC = 3.0V-3.6V ±24 VCC = 2.7V ±12 −40 +85 °C 0 10 ns/V Free-Air Operating Temperature Input Edge Rate V = 0.8V-2.0V, VCC = 3.0V 2 Units V mA PS8630 09/19/02 PI74LCX240 3.3V 8-Bit Buffer/Line Driver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Electrical Characteristics (Over the Operating Range, TA = −40°C to +85°C, VCC = 2.7V to 3.6V) Parameters Description Test Conditions(1) VIH Input HIGH Voltage VIL VOH VOL Min. Typ(2) Max. Guaranteed Logic HIGH Level 2.0 — — Input LOW Voltage Guaranteed Logic LOW Level — — 0.8 Output HIGH Voltage VCC = 2.7-3.6 IOH = –0.1 mA VCC-0.2 — — VCC = 2.7 IOH = –12 mA 2.2 — — VCC = 3.0 IOH = –18 mA 2.4 — — IOH = –24 mA 2.2 — — VCC = 2.7-3.6 IOL = 0.1 mA — — 0.2 VCC = 2.7 IOL = 12mA — — 0.4 VCC = 3.0 IOL = 16 mA — — 0.4 IOL = 24 mA — — 0.55 Output LOW Voltage VIK Clamp Diode Voltage VCC = Min., IIN = –18 mA — −0.7 −1.2 II Input Leakage Current 0 ≤ VI ≤ 5.5V Vcc = 2.7-3.6 — — ±5 IOZ Tri-State Output Leakage 0 ≤ VO ≤ 5.5V VI = VIH or VIL VCC = 2.7-3.6 — — ±5 IOFF Power Down Disable VCC = 0V, VIN or VOUT ≤ 5.5V — — 10 ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 10 ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = VCC – 0.6V(3) 500 Units V µA 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 Test Conditions Typ. Input Capacitance VCC = Open, VI = 0V or VCC 7 COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 CPD Power Dissipation Capacitance VCC = 3.3V, VI = 0V or VCC, F = 10 MHz 25 3 PS8630 Units pF 09/19/02 PI74LCX240 3.3V 8-Bit Buffer/Line Driver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range VCC = 3.3V ± 0.3V Parameters VCC = 2.7V Description Conditions Min. Max. Min. Max. tPLH tPHL Propagation Delay DXX to OXX CL = 50 pF RL = 500Ω 1.5 6.5 1.5 7.5 tPZH tPZL Output Enable time 1.5 8.0 1.5 9.0 tPHZ tPLZ Output Disable Time 1.5 7.0 1.5 8.0 Output Skew(1) 1.0 tSK(O) Units ns Note: 1. Skew between any two outputs of the same package, switching in the same direction. Dynamic Switching Characteristics (TA = +25°C) Parameters Description Test Conditions(1) VOLP Dynamic LOW Peak Voltage VCC = 3.3V, CL = 50 pF VIH = 3.3V, VIL = 0V VOLV Dynamic LOW Valley Voltage VCC = 3.3V, CL = 50 pF VIH = 3.3V, VIL = 0V Typ. Units 0.8 V Note: 1. Measured with n–1 outputs switching from High-to-Low or Low-to-High. The remaining output is measured in the LOW state. 4 PS8630 09/19/02 PI74LCX240 3.3V 8-Bit Buffer/Line Driver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 20-pin 209-mil wide plastic SSOP (H) Package 20 .197 .220 5.00 5.60 1 .004 .009 .272 .295 6.90 7.50 0.55 .022 0.95 .037 .078 2.00 Max SEATING PLANE .0256 BSC 0.65 0.09 0.25 .291 .322 7.40 8.20 .002 Min 0.050 .0098 Max. 0.25 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 20-pin 173-mil wide plastic TSSOP (L) Package 20 .169 .177 4.3 4.5 1 .252 .260 6.4 6.6 .0256 BSC 0.65 .004 0.09 .008 0.20 .047 1.20 Max .007 .012 0.19 0.30 0.45 0.75 SEATING PLANE .018 .030 .238 .269 6.1 6.7 .002 0.05 .006 0.15 X.XX X.XX 5 DENOTES CONTROLLING DIMENSIONS IN MILLIMETERS PS8630 09/19/02 PI74LCX240 3.3V 8-Bit Buffer/Line Driver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 20-pin 300-mil wide plastic SOIC (S) Package 20 .2914 .2992 7.40 7.60 .010 .029 0.254 x 45˚ 0.737 1 .496 12.60 .511 12.99 0.23 0.32 0.41 .016 1.27 .050 .020 0.508 REF .030 0.762 .0926 .1043 2.35 2.65 .394 .419 10.00 10.65 SEATING PLANE .050 BSC 1.27 .0091 .0125 0-8˚ .013 .020 0.33 0.51 .0040 .0118 0.10 0.30 X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS Thermal Characteristics can be found on the web: http://www.pericom.com/packaging/mechanicals.php Ordering Information Orde ring Code Package Type PI74LCX240H 20- pin, 209- mil wide plastic SSOP PI74LCX240L 20- pin, 173- mil wide plastic TSSOP PI74LCX240S 20- pin, 300- mil wide plastic SOIC Orde ring Range –40°C to 85°C Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 6 PS8630 09/19/02