PI3B3244QE

Obsolete – Part Discontinued, Use PI3CH3244 A product Line of Diodes Incorporated PI3B3244 3.3V, Hot Insertion, 8-Bit, 2-Port NanoSwitch Features Description ÎÎNear-Zero propagation delay Pericom Semiconductor’s PI3B series of logic circuits are produced using the Company’s advanced sub-micron CMOS technology, achieving industry leading performance. ÎÎ5-ohm switches connect inputs to outputs ÎÎFast Switching Speed: 4.5ns (max.) The PI3B3244 features a set of 3.3V 8-bit bus switches, which is pinout and function compatible with the P74FCT244T, 74F244, and 74ALS/AS/LS2448-bit drivers. Two enable signals (BEn) turn the switches on similar to the enable signals of the 244. The bus switch create no additional propagation delay or ground bounce noise. ÎÎUltra-Low Quiescent Power (0.2μA Typical) àà Ideally suited for notebook applications ÎÎPackaging (Pb-free & Green): àà 20-pin 150-mil wide plastic QSOP (Q) àà 20-pin 173-mil wide plastic TSSOP (L) Block Diagram Pin Configuration BE1 1A0 SW 1B0 1A1 SW 1B1 1A2 SW 1B0 1A3 SW 1B1 SW A BE2 2A0 SW 2B0 2A1 SW 2B1 2A2 SW 2B2 2A3 SW 2B3 BE1 1A0 2B3 1A1 2B2 1A2 2B1 1A3 2B0 GND B BE 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 Vcc BE2 1B0 2A3 1B1 2A2 1B2 2A1 1B3 2A0 Truth Table(1) Pin Description BE1 BE2 1A, 1B 2A, 2B Bus Enable Input (Active LOW) H H Disconnect Disconnect A0-7 Bus A L H 1A = 1B Disconnect B0-7 Bus B H L Disconnect 2A = 2B GND Ground L L 1A = 1B 2A = 2B VCC Power Pin Name Description BEn All trademarks are property of their respective owners. Note: 1. H = High Voltage Level, L = Low Voltage Level 1 www.diodes.com 10/11/16 A product Line of Diodes Incorporated PI3B3244 Maximum Ratings (Above which 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 +4.6V 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................................................................................... 0.5W DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters Description Test Conditions(1) Min. VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 VIL Input LOW Voltage Guaranteed Logic LOW Level -0.5 IIH Input HIGH Current IIL Input LOW Current IOZH Typ .(2) Max. Units V 0.8 V VCC = Max., VIN = VCC ±1 μA VCC = Max., VIN = GND ±1 μA High Impedance Output Current 0 ≤ IN, YN ≤ VCC ±1 μA VIK Clamp Diode Voltage -1.2 V RON Switch On Resistance VCC = Min., IIN = –18 mA (3) VCC = Min., VIN = 0.0V, ION = 48mA or 64mA 5 8 VCC = Min, VIN = 2.4V, ION = 15mA 10 17 Ω Capacitance (TA = 25°C, f = 1 MHz) Parameters(1) Description Test Conditions Typ. Units CIN Input Capacitance VIN = 0V 3.0 pF COFF A/B Capacitance, Switch Off VIN = 0V 8.0 pF CON A/B Capacitance, Switch On VIN = 0V 16.0 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, TA = 25°C ambient and maximum loading. 3. 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. 4. This parameter is determined by device characterization but is not production tested. All trademarks are property of their respective owners. 2 www.diodes.com 10/11/16 A product Line of Diodes Incorporated PI3B3244 Power Supply Characteristics Parameters Description Test Conditions(1) ICC Quiescent Power Supply Current VCC = Max. VIN = GND or VCC ΔICC Supply Current per Input @ TTL HIGH VCC = Max. VIN = 3.0V(3) Min. Typ. (2) Max. Units 0.1 3.0 μA 750 μA 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 TTL driven input (control input only); A and B pins do not contribute to ICC . Switching Characteristics over 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. Max. Units 0.25 CL = 50 pF RL = 500Ω 1.0 4.0 1.0 4.5 ns Notes: 1. See test circuit and wave forms. 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. Applications Information Logic Inputs The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a + 3.3V supply, IN may be driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail® minimizes power consumption. Power-Supply Sequencing and Hot-Plug Information Proper power-supply sequencing is recommended for all CMOS devices. Always apply VCC and GND before applying signals to input/output or control pins. Rail-to-Rail is a registeredtrademark of Nippon Motorola, Ltd. All trademarks are property of their respective owners. 3 www.diodes.com 10/11/16 A product Line of Diodes Incorporated PI3B3244 Packaging Mechanical: 20-Pin QSOP (Q) 16-0057 All trademarks are property of their respective owners. 4 www.diodes.com 10/11/16 A product Line of Diodes Incorporated PI3B3244 Packaging Mechanical: 20-Pin TSSOP (L) 16-0074 Note: For latest package info, please check: http://www.pericom.com/support/packaging/packaging-mechanicals-and-thermal-characteristics/ Ordering Information Ordering Code Package Code Package Type PI3B3244QE Q 20-Pin, 150mil Wide (QSOP) PI3B3244QEX Q 20-Pin, 150mil Wide (QSOP), Tape & Reel PI3B3244LE L 20-Pin, 173mil Wide (TSSOP) PI3B3244LEX L 20-Pin, 173mil Wide (TSSOP), Tape & Reel 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. E = Lead-free and Green 3. Adding X suffix = Tape/Reel All trademarks are property of their respective owners. 5 www.diodes.com 10/11/16