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| IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE LOW-VOLTAGE 10-BIT BUS SWITCH IDT74CBTLV3861 FEATURES: * * * * * * 5 A/B bi-directional switch Isolation under power-off conditions Over-voltage tolerant Latch-up performance exceeds 100mA VCC = 2.3V - 3.6V, Normal Range ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * Available in QSOP and TSSOP packages DESCRIPTION: The CBTLV3861 provides ten bits of high-speed bus switching with low on-state resistance of the switch allowing connections to be made with minimal propagation delay. The device is organized as one 10-bit bus switch. When output enable (OE) is low, the 10-bit bus switch is on and port A is connected to port B. When OE is high, the switch is open and a high-impedance state exists between the two ports. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. APPLICATIONS: * 3.3V High Speed Bus Switching and Bus Isolation FUNCTIONAL BLOCK DIAGRAM SIMPLIFIED SCHEMATIC, EACH SWITCH A1 2 SW 22 B1 A A10 11 B SW 13 B10 OE 23 OE The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE 1 JUNE 2006 DSC-5741/5 (c) 2006 Integrated Device Technology, Inc. IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION NC A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 GND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VCC OE B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 ABSOLUTE MAXIMUM RATINGS(1) Symbol VCC VI IIK TSTG Description SupplyVoltage Range Input Voltage Range Continuous Channel Current Input Clamp Current, VI/O < 0 Storage Temperature Max -0.5 to +4.6 -0.5 to +4.6 128 -50 -65 to +150 Unit V V mA mA C NOTE: 1. Stresses greater than those listed under ABSOLUTE 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. FUNCTION TABLE(1) Input OE L H NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level QSOP / TSSOP TOP VIEW Operation A Port = B Port Disconnect OPERATING CHARACTERISTICS, TA = 25C(1) Symbol VCC VIH VIL TA Parameter Supply Voltage High-Level Control Input Voltage Low-Level Control Input Voltage Operating Free-Air Temperature VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V NOTE: 1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Test Conditions Min. 2.3 1.7 2 -- -- -40 Max. 3.6 -- -- 0.7 0.8 85 Unit V V V C 2 IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Conditions: TA = -40C to +85C Symbol VIK II IOZ IOFF ICC ICC(2) CI CIO(OFF) VCC = 2.3V Typ. at VCC = 2.5V RON(3) VCC = 3V VI = 2.4V Control Inputs Control Inputs Parameter Control Inputs, Data I/O Control Inputs, Data I/O Data I/O VCC = 3V, II = -18mA VCC = 3.6V, VI = VCC or GND VCC = 3.6V, VO = 0 or 3.6V, switch disabled VCC = 0, VI or VO = 0 to 3.6V VCC = 3.6V, IO = 0, VI = VCC or GND VCC = 3.6V, one input at 3V, other inputs at VCC or GND VI = 3V or 0 VO = 3V or 0, OE = VCC VI = 0 VI = 1.7V VI = 0 IO = 64mA IO = 24mA IO = 15mA IO = 64mA IO = 24mA IO = 15mA Test Conditions Min. -- -- -- -- -- -- -- -- -- -- -- -- -- -- Typ.(1) -- -- -- -- -- -- 4 6 5 5 27 5 5 10 Max. -1.2 1 5 50 10 300 -- -- 8 8 40 7 7 15 Unit V A A A A A pF pF NOTES: 1. Typical values are at VCC = 3.3V, +25C ambient. 2. The increase in supply current is attributable to each current that is at the specified voltage level rather than VCC or GND. 3. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch. SWITCHING CHARACTERISTICS VCC = 2.5V 0.2V Symbol tPD(1) Parameter Propagation Delay A to B or B to A tEN tDIS Output Enable Time OE to A or B Output Disable Time OE to A or B NOTE: 1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance driven by an ideal voltage source (zero output impedance). VCC = 3.3V 0.3V Max. 0.15 Min. - 1 1 Max. 0.25 Unit ns Min. - 1 1 4.5 5 4.2 5 ns ns 3 IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VLOAD VIH VT VLZ VHZ CL VCC = 3.3V0.3V 6 3 1.5 300 300 50 (1) SAME PHASE INPUT TRANSITION tPLH tPHL Unit V V V mV mV pF VCC = 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30 (2) OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL VIH VT 0V VOH VT VOL VIH VT 0V Propagation Delay ENABLE CONTROL INPUT tPZL OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V tPLZ DISABLE VCC 500 Pulse(1, 2) Generator VIN D.U.T. RT 500 CL VOUT VLOAD Open GND VIH VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V Test Circuits for All Outputs Enable and Disable Times DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2ns; tR 2.5ns. SWITCH POSITION Test tPLZ/tPZL tPHZ/tPZH tPD Switch VLOAD GND Open 4 IDT74CBTLV3861 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION XXX XX IDT XX CBTLV Device Type Package Temp. Range Q QG PG PGG Quarter-size Small Outline Package QSOP - Green Thin Shrink Small Outline Package TSSOP - Green 3861 Low-Voltage 10-Bit Bus Switch 74 -40C to +85C CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 5 for Tech Support: logichelp@idt.com |
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