PI74LCX541 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 3.3V 8-Bit Buffer/Line Driver Product Features Product Description • Functionally compatible with FCT3, LVT, and 74 series 541 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 • 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) Pericom Semiconductor’s PI74LCX series of logic circuits are produced in the Company’s advanced 0.6 micron CMOS technology achieving high speed while maintaining low power operation. The PI74LCX541 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. This device offers a flow-through organization for ease of board layout. Product Pin Configuration Product Pin Description Logic Block Diagram OEA Pin Name Description OEA, OEB 3-State Output Enable, Inputs (Active LOW) O0 D0-D7 Inputs O1 O0-O7 Outputs O3 GND Ground O4 VCC Power OEB 1 20 2 19 3 18 4 20-Pin 17 H20 16 5 L20 15 6 Q20 7 14 S20 8 13 9 12 10 11 OEA D0 O1 D2 D0 The PI74LCX541 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. O0 D3 D4 D5 D1 O1 D2 O2 D3 O3 D4 O4 D6 D7 GND VCC OEB O2 O5 O6 O7 Truth Table(1) Inputs D5 O5 D6 O6 D7 O7 Outputs OEA OEB DX OX L L L L L L H H H X X Z X H X Z Note: 1. H = High Voltage Level, X = Don’t Care, L = Low Voltage Level, Z = High Impedance 1 PS2101B 07/22/99 PI74LCX541 3.3V 8-Bit Buffer/Line Driver 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 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. Power Dissipation .................................................................................... 1.0W Recommended Operating Conditions Symbol VCC Parame te r Supply Voltage VI Input Voltage VO O utput Voltage IOH/IOL TA ∆t/∆V O utput Current M in. M ax. O perating 2.0 3.6 Data Retention 1.5 3.6 0 5.5 HIGH or LO W 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 O perating Temperature Input Edge Rate V = 0.8V- 2.0V, VCC = 3.0V 2 PS2101B Units V mA 07/22/99 PI74LCX541 3.3V 8-Bit Buffer/Line Driver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Electrical Characteristics (Over the Operating Range, TA = −40°C to +85°C, VCC = 2.7V to 3.6V) D e s cription Te s t Conditions (1) VIH Input HIGH Voltage VIL VOH Parame te rs VOL M in. Typ(2) M ax. Guaranteed Logic HIGH Level 2.0 Input LO W Voltage Guaranteed Logic LO W Level 0.8 O utput HIGH Voltage VCC = 2.7- 3.6 IOH = 0.1mA VCC- 0.2 VCC = 2.7 IOH = 12mA 2.2 VCC = 3.0 IOH = 18mA 2.4 IOH = 24mA 2.2 VCC = 2.7- 3.6 IOL = 0.1mA 0.2 VCC = 2.7 IOL = 12mA 0.4 VCC = 3.0 IOL = 16mA 0.4 IOL = 24mA 0.55 −0.7 −1.2 O utput LO W Voltage VIK Clamp Diode Voltage VCC = Min., IIN = 18mA II Input Leakage Current 0 ≤ VI ≤ 5.5V VCC = 2.7- 3.6 ±5 IOZ Tri- State O utput 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 Q uiescent Power Supply Current VCC = Max. VIN = GND or VCC 0.1 10 ∆ICC Q uiescent 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 Parame te rs D e s cription Te s t Conditions Typ. CIN Input Capacitance VCC = O pen, VI = 0V or VCC 7 COUT O utput Capacitance VCC = 3.3V, VI = 0V or VCC 8 Power Dissipation Capacitance VCC = 3.3V, VI = 0V or VCC, F = 10 MHz 25 CPD 3 PS2101B Units pF 07/22/99 PI74LCX541 3.3V 8-Bit Buffer/Line Driver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range VCC = 3.3V ± 0.3V VCC = 2.7V D e s cription Conditions M in. M ax. M in. M ax. tPLH tPHL Propagation Delay DXX to O XX CL = 50pF RL = 500Ω 1.5 6.5 1.5 7.5 tPZH tPZL O utput Enable time 1.5 8.5 1.5 9.5 tPHZ tPLZ O utput Disable Time 1.5 7.5 1.5 8.5 O utput Skew(1) 1.0 Parame te rs 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) D e s cription Te s t Conditions (1) VOLP Dynamic LO W Peak Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V VOLV Dynamic LO W Valley Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V Parame te rs 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. Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 4 PS2101B 07/22/99