PI74ALVCHR162245 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 3.3V 16-Bit Bidirectional Transceiver with 3-State Output Product Features Product Description • PI74ALVCHR162245 is designed for low voltage operation • Vcc = 2.3V to 3.6V • Hysteresis on all inputs • Typical VOLP (Output Ground Bounce) < 0.8V at VCC = 3.3V, TA = 25°C • Typical VOHV (Output VOH Undershoot) < 2.0V at VCC = 3.3V, TA = 25°C • All output ports have equivilent 26Ω for overshoot/ undershoot protection series resistors: No external resistors are required • Bus Hold retains last active bus state during 3-state eliminating the need for external pull-up resistors • Industrial operation at -40°C to +85°C • Packages available: – 48-pin 240-mil wide plastic TSSOP (A) Pericom Semiconductor’s PI74ALVCH series of logic circuits are produced using the Company’s advanced 0.5 micron CMOS technology to achieve industry-leading speed grades. The PI74ALVCHR162245 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. To ensure the high-impedance state during power up or power down, OE should be tied to Vcc through a pull-up resistor; the minimum value of the resistor is determined by the current sinking ability of the driver. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Logic Block Diagram 1DIR 2DIR 1OE 2OE 1A0 2A0 1B0 2B0 1A1 2A1 1B1 2B1 1A2 2A2 1B2 2B2 1A3 2A3 1B3 2B3 1A4 2A4 1B4 2B4 1A5 2A5 1B5 2B5 1A6 2A6 1B6 2B6 1A7 2A7 1B7 09-0002 2B7 1 PS8343B 01/05/09 PI74ALVCHR162245 3.3V 16-Bit Bidirectional Transceiver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Truth Table(1) Product Pin Description Pin Name De s cription Inputs xOE 3- State Output Enable Inputs (Active LOW) xDIR Direction Control Input XAX Side A Inputs or 3- State Inputs XBX Side B Outputs or 3- State Outputs GND Ground VCC Power Outputs xOE xDIR L L Bus B Data to Bus A L H Bus A Data to Bus B H(2) X Z Note: 1. H = High Voltage Level, X = Don't Care, L = Low Voltage Level, Z = High Impedance 2. Resistor to VCC Product Pin Configuration Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) 1DIR 1B0 1B1 GND 1B2 1B3 VCC 1B4 1B5 GND 1B6 1B7 2B0 2B1 GND 2B2 2B3 VCC 2B4 2B5 GND 2B6 2B7 2DIR 09-0002 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48-PIN A48 48 47 46 45 44 43 42 41 40 39 38 37 36 1OE 35 34 33 32 31 30 29 28 27 26 25 2A1 Storage Temperature ............................................. –65°C to +150°C Ambient Temperature with Power Applied ........... –40°C to +85°C Input Voltage Range, VIN ........................................ –0.5V to +4.6V Output Voltage Range, VOUT .......................... –0.5V to VCC +0.5V DC Input Voltage ..................................................... –0.5V to +5.0V DC Output Current ................................................................. 50 mA Power Dissipation ..................................................................... 1.0W 1A0 1A1 GND 1A2 1A3 VCC 1A4 1A5 GND 1A6 1A7 2A0 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. GND 2A2 2A3 VCC 2A4 2A5 GND 2A6 2A7 2OE 2 PS8343B 01/05/09 PI74ALVCHR162245 3.3V 16-Bit Bidirectional Transceiver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ± 10%) Parame te rs De s cription VCC Supply Voltage VIH(3) Input HIGH Voltage VIL(3) Input LOW Voltage Te s t Conditions (1) M in. Typ.(2) 2.3 VCC = 2.3V to 2.7V 1.7 VCC = 2.7V to 3.6V 2. 0 M ax. VCC = 2.3V to 2.7V 0.7 VCC = 2.7V to 3.6V 0.8 VIN(3) Input Voltage 0 VCC VOUT(3) Output Voltage 0 VCC IOH = - 100 μA, 2.3V to 3.6V VOH Output HIGH Voltage Vcc - 0.2 VIH = 1.7V 2.3V 1.9 VIH = 2V 2.7V 2.2 VIH = 1.7V 2.3V 1.7 VIH = 2V 3V 2.4 IOH = - 8mA VIH = 2V 2.7V 2 IOH = - 12mA VIH = 2V 3V 2 IOH = - 4mA IOH = - 6mA V IOL = 100μA, 2.3V to 3.6V VOL 0.2 VIL = 0.7V 2 . 3V 0 .4 VIH = 2V 2.7V 0 .4 VIL = 0.7V 2 . 3V 0.55 VIL = 0.8V 3V 0.55 IOL = 8mA VIL = 0.8V 2 . 7V 0 .6 IOL = 12mA VIL = 0.8V 3V 0 .8 IOL = 4mA Output LOW Voltage IOL = 6mA VCC = 2.3V IOH(3) IOL(3) IIN IIN (HOLD) Output HIGH Current Output LOW Current Input Current Input Hold Current Units 3 .6 -6 VCC = 2.7V -8 VCC = 3.0V - 12 VCC = 2.3V 6 VCC = 2.7V 8 VCC = 3.0V 12 VIN = VCC or GND, VCC = 3.6V ±5 VIN = 0.7V, VCC = 2.3V 45 VIN = 1.7V, VCC = 2.3V - 45 VIN = 0.8V, VCC = 3.0V 75 VIN = 2.0V, VCC = 3.0V - 75 VIN = 0 to 3.6V, VCC = 3.6V ± 500 IOZ Output Current (3- State Outputs) VOUT = VCC or GND, VCC = 3.6V ±10 Icc Supply Current VCC = 3.6V, IOUT = 0μA, VIN = GND or VCC 40 ΔIcc Supply Current per Input @ TTL HIGH VCC = 3.0V to 3.6V One Input at VCC - 0.6V Other Inputs at VCC or GND 750 CI Control Inputs VIN = VCC or GND, VCC = 3.3V 4 CIO A or B Ports VO = VCC or GND, VCC = 3.3V 9 mA μA pF 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 and maximum loading. 3. Unused Control Inputs must be held HIGH or LOW to prevent them from floating. 09-0002 3 PS8343B 01/05/09 PI74ALVCHR162245 3.3V 16-Bit Bidirectional Transceiver with 3-State Outputs 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over Operating Range(1) Parame te rs From (INPUT) tPD A or B tEN OE tDIS OE To (OUTPUT) B or A VCC = 2.5V ± 0.2V M in.(2) M ax. 1.0 VCC = 2.7V M in.(2) VCC = 3.3V ± 0.3V M ax. M in.(2) M ax. 4.9 4.7 1.0 4.2 1.0 6 .8 6.7 1. 0 5. 6 1.0 6 .3 5.7 1. 0 5. 5 0 10 10 0 10 Units ns De s cription Δt/Δv(3) Input Transition Rise or Fall 0 ns/V Notes: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Recommended operating condition. Operating Characteristics, TA = 25°C Parame te rs Cpd Power Dissipation Capacitance Outputs Enabled Outputs Disabled Te s t Conditions VCC = 2.5V ± 0.2V VCC = 3.3V ± 0.3V Typ. Typ. CL = 50pF, f = 10 MHz 24 32 4 5 Units pF Pericom Semiconductor Corporation 3545 N. 1st Street • San Jose, CA 95134 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 09-0002 4 PS8343B 01/05/09