PI74LCX16245 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Fast CMOS 3.3V 16-Bit Bidirectional Transceiver Product Features Product Description • Functionally compatible with FCT3, LVT, and 74 series 16245 families of products • Tri-State outputs • 5V Tolerant inputs and outputs • 2.0V-3.6V VCC supply operation • Balanced sink and source output drives (24mA) • 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: – 48-pin 240-mil wide plastic TSSOP (A) – 48-pin 300-mil wide plastic SSOP (V) Pericom Semiconductor’s PI74LCX series of logic circuits are produced in the Company’s advanced 0.6 micron CMOS technology, achieving industry leading speed grades. The PI74LCX16245 is a 16-bit bidirectional transceiver designed for asynchronous two-way communication between data buses. The direction control input pin (xDIR) determines the direction of data flow through the bidirectional transceiver. The Direction and Output Enable controls are designed to operate this device as either two independent 8-bit transceivers or one 16-bit transceiver. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition. The PI74LCX16245 can be driven from either 3.3V or 5.0V devices allowing this device to be used as a translator in a mixed 3.3/5.0V system. Logic Block Diagram 1DIR 2DIR 1OE 2OE 1A0 2A0 1B0 2B0 1A1 2A1 1B1 2B1 1A2 2A2 1B2 2B2 A31 2A3 1B3 2B3 1A4 2A4 1B4 2B4 1A5 2A5 1B5 2B5 1A6 2A6 1B6 2B6 1A7 2A7 1B7 2B7 1 PS2088B 09/19/02 PI74LCX16245 3.3V 16-Bit Bidirectional Transceiver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Truth Table(1) Product Pin Description Pin Name Inputs (1) De s cription xOE 3- State Output Enable Inputs (Active LOW) xDIR xOE xDIR Outputs (1) Direction Control Input L L Bus B Data to Bus A XAX Side A Inputs or 3- State Inputs L H Bus A Data to Bus B XBX Side B Outputs or 3- State Outputs H X Z GND Ground VCC Power Note: 1. H = High Voltage Level X = Don’t Care, L = Low Voltage Level Z = High Impedance Product Pin Configuration 48-Pin A, V 2 PS2088B 09/19/02 PI74LCX16245 3.3V 16-Bit Bidirectional Transceiver 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 .............................................................................. 120mA 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 Parame te r VCC Supply Voltage VI Input Voltage VO Output Voltage IOH/IOL Output Current TA ∆t/∆V M in. M a x. Operating 2.0 3.6 Data Retention 1.5 3.6 0 5.5 HIGH or LOW State 0 VCC 3- 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 PS2088B 09/19/02 PI74LCX16245 3.3V 16-Bit Bidirectional Transceiver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Electrical Characteristics (Over the Operating Range, TA = -40°C to +85°C, VCC = 2.7V to 3.6V) Parame te rs De s cription Te s t Conditions (1) M in. Typ(2) M ax. 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 = –24 mA 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 VOL Output LOW Voltage VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — − 0.7 − 1. 2 II Input Leakage Current 0 ≤ VI ≤ 5.5V VCC = 2.7- 3.6 — — ±5 IOZ 3- 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 VCC = Max. TTL Inputs HIGH 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 De s cription Te s t Conditions CIN Input Capacitance VCC = Open, VI = 0V or VCC 7 COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 Power Dissipation Capacitance VCC = 3.3V, VI = 0V or VCC, F = 10 MHz 20 C PD 4 Typ. PS2088B Units pF 09/19/02 PI74LCX16245 3.3V 16-Bit Bidirectional Transceiver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range VCC = 3.3V ± 0.3V Parame te rs De s cription tPLH tPHL Propagation Delay DXX to OXX tPZH tPZL Output Enable time tPHZ tPLZ Output Disable Time tSK(O) Conditions C L = 50pF RL = 500Ω Output Skew(1) VCC = 2.7V M in. M a x. M in. M a x. 1.5 4.5 1. 5 5.2 1. 5 6.5 1.5 7.2 1.5 6.4 1.5 6.9 1.0 Units ns Notes: 1. Skew between any two outputs, of the same package, switching in the same direction. Dynamic Switching Characteristics (TA = +25°C) De s cription Te s t Conditions (1) Typ. Units VOLP Dynamic LOW Peak Voltage VOLV Dynamic LOW Valley Voltage VCC = 3.3V, CL = 50pF VIH = 3.3V, VIL = 0V 0.8 V Parame te rs 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 PS2088B 09/19/02 PI74LCX16245 3.3V 16-Bit Bidirectional Transceiver 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Packaging Mechanical: 48-Pin TSSOP (A) Package 48 .236 .244 1 6.0 6.2 .488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE .004 0.09 .008 0.20 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS .0197 BSC 0.50 0.45 .018 0.75 .030 .002 .006 0.05 0.15 .007 .010 0.17 0.27 .319 BSC 8.1 Packaging Mechanical: 48-Pin SSOP (V) Package 48 .395 .420 10.03 10.67 .291 .299 7.39 7.59 Gauge Plane .010 0.25 .02 0.51 .04 1.01 1 .620 .630 15.75 16.00 .015 0.381 x 45˚ .025 0.635 .008 0.20 Nom. .110 2.79 Max .025 BSC 0.635 .008 0.20 .0135 0.34 0-8˚ .008 0.20 .016 0.40 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Ordering Information Orde ring Co de D e s criptio n P I7 4 LC X16 2 4 5 A 4 8 - P in 2 4 0 - mil wid e P lastic TS S O P (A) P I7 4 LC X16 2 4 5 V 4 8 - P in 3 0 0 - mil wid e P lastic S S O P (V) Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 6 PS2088B 09/19/02