PI74ALVCH162244 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 16-Bit Buffer Driver with 3-State Outputs Product Features Product Description • • • • Pericom Semiconductor’s PI74ALVCH series of logic circuits are produced using the Company’s advanced 0.5 micron CMOS technology, achieving industry leading speed. • • • • • PI74ALVCH162244 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 Output ports have equivalent 26-Ohm series resistors: no external resistors are required Bus Hold retains last active bus state during 3-State, eliminating the need for external pullup resistors Industrial operation: –40°C to +85°C Packages available: – 48-pin 240 mil wide plastic TSSOP (A) – 48-pin 300 mil wide plastic SSOP (V) The PI74ALVCH162244 is an non-inverting 16-bit buffer/driver designed for low voltage 2.3V to 3.6V VCC operation. The buffer/driver is designed specifically to improve both the performance and density of 3-State memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides non-inverting outputs and symmetrical active-low output-enable (OE) inputs. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor in which the minimum value is determined by the current-sinking capability of the driver. The PI74ALVCH162244 has “Bus Hold” which retains the data input’s last state whenever the data input goes to high-impedance preventing “floating” inputs and eliminating the need for pullup/ down resistors. Logic Block Diagram 1OE 3OE 1A0 1Y0 3A0 3Y0 1A1 1Y1 3A1 3Y1 1A2 1Y2 3A2 3Y2 1A3 1Y3 3A3 3Y3 2OE 4OE 2A0 2Y0 4A0 4Y0 2A1 2Y1 4A1 4Y1 2A2 2Y2 4A2 4Y2 2A3 2Y3 4A3 4Y3 1 PS8092B 10/15/01 PI74ALVCH162244 16-Bit Buffer Driver with 3-State Outputs 123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123 Truth Table(1) Product Pin Description Pin Name De s cription Inputs OE 3- State Output Enable Inputs (Active LOW) Ax Yx Outputs OE Ax Yx Inputs L H H 3- State Outputs L L L GND Ground H X Z VCC Power Notes: 1. H = High Signal Level L = Low Signal Level X = Don't Care or Irrelevant Z = High Impedance Product Pin Configuration 1OE 1 48 2OE 1Y1 2 47 1A1 1Y2 3 46 1A2 GND 4 45 GND 1Y3 5 44 1A3 1Y4 6 43 1A4 VCC 7 42 2Y1 8 41 VCC 2A1 2Y2 9 40 2A2 39 GND 2Y3 10 48-Pin A, V 11 38 2A3 2Y4 12 37 2A4 3Y1 13 36 3A1 3Y2 14 35 3A2 GND 15 34 GND 3Y3 16 33 3A3 3Y4 VCC 17 32 18 31 3A4 VCC 4Y1 19 30 4A1 GND 4Y2 20 29 4A2 GND 21 28 GND 4Y3 22 27 4A3 4Y4 23 26 4A4 4OE 24 25 3OE 2 PS8092B 10/15/01 PI74ALVCH162244 16-Bit Buffer Driver with 3-State Outputs 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 Input Voltage Range, VIN ............................................ –0.5V to VCC +0.5V Output Voltage Range, VOUT ..................................... –0.5V to VCC +0.5V DC Input Voltage .......................................................... –0.5V to +5.0V DC Output Current ................................................................... 100 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. 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 VIN (3) VOUT(3) Te s t Conditions (1) 2.3 VCC = 2.3V to 2.7V 1.7 VCC = 2.7V to 3.6V 2.0 VOL IOH(3) IOL(3) Typ.(2) M ax. 0.7 VCC = 2.7V to 3.6V 0.8 Input Voltage 0 VCC Output Voltage 0 VCC Output HIGH Voltage Output LOW Voltage Output HIGH Current Output LOW Current VCC - 0.2 VIH = 1.7V, IOH = –4mA, VCC = 2.3V 1.9 VIH = 1.7V, IOH = –6mA, VCC = 2.3V 1.7 VIH = 2.0V, IOH = –6mA, VCC = 2.3V 2.4 VIH = 2.0V, IOH = –8mA, VCC = 2.7V 2.0 VIH = 2.0V, IOH = –12mA, VCC = 3.0V 2.0 V IOL = 100µA, VIL = Min. to Max. 0.2 VIL = 0.7V, IOL = 4mA, VCC = 2.3V 0.4 VIL = 0.7V, IOL = 6mA, VCC = 2.3V 0.55 VIL = 0.8V, IOL = 6mA, VCC = 3.0V 0.55 VIL = 0.8V, IOL = 12mA, VCC = 3.0V 0.8 VCC = 2.3V –6 VCC = 2.7V –8 VCC = 3.0V –12 VCC = 2.3V 6 VCC = 2.7V 8 VCC = 3.0V 12 3 Units 3.6 VCC = 2.3V to 2.7V IOH = –100µA, VCC = Min. to Max. VOH M in. mA PS8092B 10/15/01 PI74ALVCH162244 16-Bit Buffer Driver with 3-State Outputs 123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123 DC Electrical Characteristics-Continued (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parame te rs De s cription IIN Input Current Te s t Conditions (1) M ax. VIN = VCC or GND, VCC = 3.6V Input Hold Current IIN (HOLD) Typ.(2) M in. ±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 ∆ICC 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 CO Outputs µA 3.5 VIN = VCC or GND, VCC = 3.3V Data Inputs Units 6 VO = VCC or GND, VCC = 3.3V pF 7 Notes: 1. For cMax. 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. Switching Characteristics over Operating Range(1) Parame te rs From (Input) To (Output) VCC = 2.5V ±0.2V M in.(2) M ax. VCC = 2.7V M in.(2) VCC = 3.3V ±0.3V M ax. M in.(2) M ax. tPD A Y 1.0 4.9 4.7 1. 0 4.2 tEN OE Y 1.0 6.8 6.7 1.0 5.6 tDIS OE Y 1.0 6.3 5.7 1.0 5.5 0 10 10 0 10 Units ns Description ∆t/∆v(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 = 25ºC Parame te r CPD Power Dissipation Capacitance Outputs Enabled Outputs Disabled Te s t Conditions VCC = 2.5V ±0.2V VCC = 3.3V ±0.3V CL = 50pF, f = 10 MHz 16 18 4 6 Units Typical pF Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 4 PS8092B 10/15/01