PI3VT34X245BEX

PI3VT34X245 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 32-Bit, 2-Port, Low Voltage Translator Bus Switch Product Features Product Description • • • • • Pericom Semiconductor’s PI3VT series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry leading performance. Near zero propagation delay Low ON resistance switches connect inputs to outputs 2.5V to 3.3V Supply Voltage Operation 2.5V or 1.8V switching Packages available: – 80-pin, 150 mil wide plastic BQSOP (B) The PI3VT34X245, either a 2.5V or 3.3V 32-bit, 2-port bus switch, is designed with a low ON resistance (5 ohms). The switches are turned ON or enabled by the Bus Enable (BEn) input signal. • 3.3V to 2.5V level shifting (voltage translation) • 2.5V to 1.8V level shifting (voltage translation) Given a 3.3V supply and an input voltage of 3.3V, the switch translates to an output voltage of 2.5V. Similarly, when operated with a 2.5V supply and given 2.5V inputs, the device translates the outputs to 1.8V. Logic Block Diagram Product Pin Configuration Applications A0 A7 B0 B7 BE1 A8 A15 B8 B15 BE2 A16 A23 B16 B23 BE3 A24 A31 B24 B31 BE4 1 NC 1 80 VCC A0 2 79 BE1 A1 3 78 B0 A2 4 77 B1 A3 5 76 B2 A4 6 75 B3 A5 7 74 B4 A6 8 73 B5 A7 9 72 B6 GND 10 71 B7 NC 11 70 VCC A8 12 69 BE2 A9 13 68 B8 A10 14 67 B9 A11 15 66 B10 A12 16 65 B11 A13 17 64 B12 A14 18 63 B13 A15 19 62 B14 80-Pin B GND 20 61 B15 NC 21 60 VCC A16 22 59 BE3 A17 23 58 B16 A18 24 57 B17 A19 25 56 B18 A20 26 55 B19 A21 27 54 B20 A22 28 53 B21 A23 29 52 B22 GND 30 51 B23 NC 31 50 VCC A24 32 49 BE4 A25 33 48 B24 A26 34 47 B25 A27 35 46 B26 A28 36 45 B27 A29 37 44 B28 A30 38 43 B29 A31 39 42 B30 GND 40 41 B31 PS8531A 12/12/01 PI3VT34X245 32-Bit, 2-Port, Low Voltage Translator Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Product Pin Description Pin Name I/O D e s cription BEN I Bus Enable Input (Active LO W) A0- A31 I/O Bus A B0- B31 I/O Bus B Truth Table(1) Function Disconnect Connect BEN H L Notes: 1. H = High Voltage Level L = Low Voltage Level Hi-Z = High Impedance A0–31 Hi-Z B0–31 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 ......................................... –0.5V to +4.6V DC Input Voltage .................................................................. –0.5V to +5.5V DC Output Current ............................................................................ 120mA Power Dissipation ................................................................................ 0.5W 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 Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parame te rs D e s cription Te s t Conditions (1) M in. Typ.(2) M ax. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 1.8 VCC +0.3V VIL Input LO W Voltage Guaranteed Logic LO W Level –0.5 0.8 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 IIL Input LO W Current VCC = Max., VIN = GND ±1 IOZH RON VP High Impedance O utput Current 0 ≤ A, B ≤ VCC Switch O N Resistance Pass Voltage Units V µA ±1 VCC = Min., VIN = 0.0V, ION = –8mA 5 8 VCC = Min., VIN = 1.7V, ION = –8mA 10 22 VCC = 2.3V, VIN = 0.0V, ION = –8mA 6 9 VCC = 2.3V, VIN = 1.3V, ION = –8mA 25 30 2.5 2.9 VIN = VCC = 3.3V, IOUT = –5µA VIN = VCC = 2.5V, IOUT = –5µA 2 2.3 1.8 PS8531A Ω V 12/12/01 PI3VT34X245 32-Bit, 2-Port, Low Voltage Translator Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Capacitance (TA = 25°C, f = 1 MHz) Parame te rs (5) De s cription CIN Input Capacitance C O FF A/B Capacitance, Switch Off CON A/B Capacitance, Switch On Te s t Conditions Typ. Units 3.5 VIN = 0V 5.0 pF 10.0 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, TA = 25°C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (A,B) pins. 5. This parameter is determined by device characterization but is not production tested. Power Supply Characteristics Parame te rs De s cription ICC Quiescent Power Supply Current ∆ICC Supply Current per Input HIGH Te s t Conditions (1) M in. Typ.(2) M ax. VIN = GND or VCC Units 12 VCC = Max. µA VIN = 3V(3) 50 Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 3.3V, +25°C ambient. 3. Per driven input (control input only); A and B pins do not contribute to ∆ICC. Switching Characteristics over 3.3V ±0.3V Operating Range Parame te r Te s t Conditions Conditions (1) tPLH tPHL Propagation Delay (2,3), Ax to Bx CL = 50pF RL = 500 ohms tPZH tPZL Bus Enable Time; BE to Ax or Bx tPHZ tPLZ Bus Disable Time; BE to Ax or Bx CL = 50pF RL = 500 ohms R = 500 ohms 3 Com. M in. M ax. — 0.25 1.5 6.5 1.5 5.5 Units ns PS8531A 12/12/01 PI3VT34X245 32-Bit, 2-Port, Low Voltage Translator Bus Switch 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics over 2.5V ±0.2V Operating Range Parame te r Te s t Conditions Conditions (1) tPLH tPHL Propagation Delay (2,3), Ax to Bx CL = 50pF RL = 500 ohms tPZH tPZL Bus Enable Time; BE to Ax or Bx tPHZ tPLZ Bus Disable Time; BE to Ax or Bx CL = 50pF RL = 500 ohms R = 500 ohms Com. M in. M ax. — 0.25 1.5 9.8 1.5 9.8 Units ns Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested on Propagation Delays. 3. The bus switch contributes no propagational delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for 50pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. 80-pin BQSOP package (Q) 80 41 .150 .157 3.80 4.00 .228 .244 5.80 6.20 .008 NOM 0.203 Gauge Plane 5˚ 1 0.50 .019 REF 0.803 0.811 20.40 20.60 .010 .016 .063 1.60 Nom .0197 BSC 0.50 .007 .010 0.17 0.27 .010 0.254 BSC .019 0.50 .029 0.75 40 0.254 x 45˚ 0.406 .078 2.0 Max 5˚ .002 .009 0.05 0.25 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS Ordering Information Part Pin-Package Te mpe rature PI3VT34X245B 80- BQSOP (B) –40ºC to +85ºC Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 4 PS8531A 12/12/01