PI74LCX16827 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 3.3V 20-Bit Buffers Product Features Product Description • Functionally compatible with FCT3, LVT, and 74 series 16827 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: – 56-pin 240-mil wide plastic TSSOP (A) – 56-pin 300-mil wide plastic SSOP (V) Pericom Semiconductor’s PI74LCX series of logic circuits are produced using the Company’s advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74LCX16827 is a 20-bit wide bus driver designed to provide buffering and high-performance bus interfacing for wide data/ address paths or busses with parity. Two pairs of nanded output enable controls allow the device to be operated as two 10-bit buffers or as one 20-bit buffer. Signal pins are arranged in a flow-through organization for ease of layout and hysteresis is designed into all inputs to improve noise margin. The PI74LCX16827 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. Logic Block Diagram 2OE1 2OE2 1OE1 1OE2 1A1 1 Y1 2A1 2 Y1 TO 9 OTHER CHANNELS TO 9 OTHER CHANNELS 1 PS2095B 09/20/02 PI74LCX16827 Fast CMOS 3.3V 20-Bit Buffers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Truth Table(1) Product Pin Description Pin Name xOEX Inputs Description Output Enable Inputs (Active LOW) Outputs xOE1 xOE2 xAx xYx XAX Data Inputs L L L L XYX 3-State Outputs 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 Product Pin Configuration 1OE1 1Y1 1Y2 GND 1Y3 1Y4 VCC 1Y5 1Y6 1Y7 GND 1Y8 1Y9 1 2 56 55 1OE2 3 4 5 54 53 1A2 52 1A3 6 7 8 51 1A4 50 49 VCC 9 10 48 1A6 47 1A7 11 12 13 46 GND 45 56-Pin 44 V56 A56 1A1 GND 1A5 1A8 1A9 1A10 2Y1 14 15 2Y2 16 43 42 41 2Y3 17 18 40 39 2A3 38 37 36 2A4 2Y6 19 20 21 VCC 22 VCC 2Y7 23 24 35 34 33 25 26 32 31 GND 27 28 30 29 2A10 1Y10 GND 2Y4 2Y5 2Y8 GND 2Y9 2Y10 2OE1 2A1 2A2 GND 2A5 2A6 2A7 2A8 2A9 2OE2 2 PS2095B 09/20/02 PI74LCX16827 Fast CMOS 3.3V 20-Bit Buffers 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 3 Units V mA PS2095B 09/20/02 PI74LCX16827 Fast CMOS 3.3V 20-Bit Buffers 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) Min. Typ(2) Max. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 — — VIL Input LOW Voltage Guaranteed Logic LOW Level — — 0.8 VOH Output 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 VOL Output LOW 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 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 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 20 CIN 4 Units pF PS2095B 09/20/02 PI74LCX16827 Fast CMOS 3.3V 20-Bit Buffers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range VCC = 3.3V ± 0.3V Parameters VCC = 2.7V Description Conditions Min. Max. Min. Max. tPHL tPHL Propagation Delay Dxx to Oxx CL = 50pF RL = 500Ω 1.5 5.0 1.5 5.6 tPZH tPZH Output Enable Time 1.5 8.0 1.5 8.6 tPHZ tPLZ Output Disable Time 1.5 6.0 1.5 6.3 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) Typical VOLP Dynamic LOW Peak Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V 0.8 VOLV Dynamic LOW Valley Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V 0.8 Units 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. 5 PS2095B 09/20/02 PI74LCX16827 Fast CMOS 3.3V 20-Bit Buffers 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Packaging Mechanical: 56-Pin TSSOP (A) Package 56 .236 .244 1 .547 .555 6.0 6.2 13.9 14.1 1.20 SEATING PLANE .047 Max. .004 0.09 .008 0.20 .0197 BSC 0.50 .007 .011 0.17 0.27 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS 0.45 .018 0.75 .030 .002 .006 0.05 0.15 .319 BSC 8.1 Packaging Mechanical: 56-Pin SSOP (V) Package 56 .291 .299 7.39 7.59 .396 .416 10.06 10.56 Gauge Plane .02 .04 0.51 1.01 .010 0.25 1 .720 18.29 .730 18.54 .015 0.381 x 45˚ .025 0.635 .008 0.20 Nom. .110 2.79 Max .025 BSC 0.635 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS .008 .0135 0.20 0.34 0-8˚ .008 0.20 .016 0.40 Ordering Information Part Numbe r De s cription PI74LCX16827A 56- pin, 240- mil wide plastic TSSOP PI74LCX16827V 56- pin, 300- mil wide plastic SSOP Ope rating 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 PS2095B 09/20/02