PI3VT32X245-A 16-Bit, 2-Port, Low Voltage Translator Bus Switch Features Description ÎÎNear-Zero propagation delay Pericom Semiconductor’s PI3VT series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry leading performance. ÎÎLow On-Resistance switches connect inputs to outputs ÎÎ2.5V to 3.3V Supply Voltage Operation The PI3VT32X245-A, a 2.5V or 3.3V 16-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 signals. ÎÎ2.5V or 1.8V switching ÎÎPackaging (Pb-free & Green available): àà 40-pin 150 mil wide BQSOP (B) 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. Features ÎÎ3.3V to 2.5V level shifting (voltage translation) ÎÎ2.5V to 1.8V level shifting (voltage translation) Block Diagram A0 A7 Pin Configuration B0 B7 BE1 A8 A15 12-0246 1 40 VCC A0 2 39 BE1 A1 3 38 B0 A2 4 37 B1 A3 5 36 B2 A4 6 35 B3 A5 7 34 B4 A6 8 33 B5 A7 9 32 B6 10 31 B7 GND B8 B15 BE2 All trademarks are property of their respective owners. NC 1 NC 11 30 VCC A8 12 29 BE2 A9 13 28 B8 A10 14 27 B9 A11 15 26 B10 A12 16 25 B11 A13 17 24 B12 A14 18 23 B13 A15 19 22 B14 GND 20 21 B15 www.pericom.com08/10/12 PI3VT32X245-A 16-Bit, 2-Port, Low Voltage Translator Bus Switch Pin Description Truth Table(1) Pin Name I/O Description Function BEN A0 - 15 BEN I Bus Enable Input (Active LOW) Disconnect H Hi-Z A0 – A15 I/O Bus A Connect L B0 – 15 B0 – B15 I/O Bus B Notes: 1. H = High Voltage Level, L = Low Voltage Level, Hi-Z = High Impedance Absolute Maximum Ratings Parameter Min. Max. Units Storage Temperature -65 150 o C Ambient Temperature with Power Applied -40 85 o C Supply Voltage to Ground Potential -0.5 4.6 V DC Input Voltage -0.5 5.5 V DC Output Current - 120 mA Power Dissipation - 0.5 W Stress beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters Description Test Conditions(1) VIH Input HIGH Voltage Guaranteed Logic HIGH Level VIL Input LOW Voltage VIH Input HIGH Voltage Max Units 1.8 VCC +0.3V V Guaranteed Logic LOW Level -0.5 0.8 VCC = 2.5V 1.6 VCC +0.3V VIL Input LOW Voltage VCC = 2.5V -0.5 0.6 IIH Input HIGH Current VCC = Max., VIN = VCC ±1 IIL Input LOW Current VCC = Max., VIN = GND ±1 IOZH High Impedance Output Current 0 ≤ A, B ≤ VCC RON Switch On Resistance Pass Voltage VP All trademarks are property of their respective owners. 12-0246 Min Typ (2) 5 9 VCC = Min., VIN = 1.7V, ION = -8mA 18 30 VCC = 2.3V, VIN = 0.0V, ION = –8mA 6 10 VCC = 2.3V, VIN = 1.3V, ION = –8mA 35 50 2.3 2.7 VIN = VCC = 2.5V, IOUT = –5μA 2 μA ±1 VCC = Min., VIN = 0.0V, ION = -8mA VIN = VCC = 3.3V, IOUT = –5μA V 2.1 1.6 Ω V www.pericom.com08/10/12 PI3VT32X245-A 16-Bit, 2-Port, Low Voltage Translator Bus Switch Capacitance (TA = 25°C, f = 1 MHz) Parameters(3) Description Test Conditions CIN Input Capacitance COFF A/B Capacitance, Switch Off CON A/B Capacitance, Switch On Typ Units 3.5 5.0 VIN = 0V 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. This parameter is determined by device characterization but is not production tested. Power Supply Characteristics Parameters Description ICC Quiescent Power Supply Current ΔICC Supply Current per Test Conditions(1) Min VIN = GND or VCC VCC = Max. Max Units 6 μA 100 VIN = 3V (3) Input HIGH Typ (2) 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 ΔICC. Switching Characteristics over 3.3V±0.3V Operating Range Com. Parameters Description tPLH tPHL Propagation Delay(2,3) Ax to Bx tPZH tPZL Bus Enable Time BE to Ax or Bx tPHZ tPLZ Bus Disable Time BE to Ax or Bx All trademarks are property of their respective owners. 12-0246 Min Test Conditions(1) CL = 50 pF R L = 500Ω Max Units 0.25 CL = 50 pF R L = 500Ω R = 500Ω 3 1.5 6.5 1.5 5.5 ns www.pericom.com08/10/12 PI3VT32X245-A 16-Bit, 2-Port, Low Voltage Translator Bus Switch Switching Characteristics over 2.5V±0.2V Operating Range Com. Parameters Description tPLH tPHL Propagation Delay(2,3) Ax to Bx tPZH tPZL Bus Enable Time BE to Ax or Bx tPHZ tPLZ Bus Disable Time BE to Ax or Bx Test Conditions(1) Min CL = 50 pF R L = 500Ω Max Units 0.25 CL = 50 pF R L = 500Ω R = 500Ω 1.5 9.8 1.5 8.3 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 0.25 ns for 50 pF 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. All trademarks are property of their respective owners. 12-0246 4 www.pericom.com08/10/12 PI3VT32X245-A 16-Bit, 2-Port, Low Voltage Translator Bus Switch Packaging Mechanical: 40-pin BQSOP (B) DOCUMENT CONTROL NO. PD - 1209 REVISION: F DATE: 03/09/05 1 X.XX DENOTES DIMENSION IN MILLIMETERS X.XX Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com Notes: 1. Controlling dimensions in millimeters 2. Ref.: JEDEC MO - 154C/BB 3. Package Outline Exclusive of Mold Flash and Metal Burr DESCRIPTION: 40-Pin, 150-Mil Wide BQSOP PACKAGE CODE: B Ordering Information Ordering Code Package Code Package Type PI3VT32X245-ABE B Pb-free & Green, 40-pin BQSOP 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. E = Pb-free & Green 3. Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 All trademarks are property of their respective owners. 12-0246 5 www.pericom.com08/10/12