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| IDT74CBTLV3384 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE LOW-VOLTAGE 10-BIT BUS SWITCH IDT74CBTLV3384 FEATURES: * * * * * * 5 A/B bi-directional bus 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 SSOP, QSOP and TSSOP packages DESCRIPTION: The CBTLV3384 is a ten bit high-speed bus switch with low on-state resistance of the switch allowing connections to be made with minimal propagation delay. The device is organized as dual 5-bit bus switches with separate outputenable (OE) inputs, to allow use as two 5-bit bus switches or one 10-bit bus switch. When OE is low, the associated 5-bit bus switch is on and A port is connected to B port. When OE is high, the switch is open, and a highimpedance 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 1A1 3 SW 2 1B1 1A5 11 SW 10 1B5 1 1OE A B 2A1 14 SW 15 2B1 OE 2A5 22 SW 10 2B5 2OE 13 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE 1 SEPTEMBER 2001 DSC-5742/4 (c) 2001 Integrated Device Technology, Inc. IDT74CBTLV3384 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS(1) Symbol VCC VI Description SupplyVoltage Range Input Voltage Range Continuous Channel Current IIK TSTG 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 1OE 1B1 1A1 1A2 1B2 1B3 1A3 1A4 1B4 1B5 1A5 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 2B5 2A5 2A4 2B4 2B3 2A3 2A2 2B2 2B1 2A1 2OE 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 1OE L L H 2OE L H L H Inputs/Outputs 1B1 - 1B5 1A1 - 1A5 1A1 - 1A5 2B1 - 2B5 2A1 - 2A5 Z 2A1 - 2A5 Z Z SSOP/ QSOP/ TSSOP TOP VIEW H NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High Impedance Z 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 IDT74CBTLV3384 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(1) CI CIO(OFF) Max. at VCC = 2.3V Typ. at VCC = 2.5V RON(2) 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. -- -- -- -- -- -- 4 7 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. The increase in supply current is attributable to each current that is at the specified voltage level rather than VCC or GND. 2. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined by the lower of the voltages of the two (A or B ) terminals. SWITCHING CHARACTERISTICS VCC = 2.5V 0.2V Symbol tPD (1) VCC = 3.3V 0.3V Max. 0.15 Min. - 1 1 Max. 0.25 Unit ns Parameter Propagation Delay A to B or B to A Min. - 1 1 tEN tDIS Output Enable Time OE to A or B Output Disable Time OE to A or B 5 5.5 4.3 5.5 ns ns 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). 3 IDT74CBTLV3384 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE VIH VT 0V VOH VT VOL VIH VT 0V TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VLOAD VIH VT VLZ VHZ CL VCC(1)= 3.3V0.3V 6 3 1.5 300 300 50 VCC 500 Pulse Generator (1, 2) SAME PHASE INPUT TRANSITION tPLH tPHL VCC(2)= 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30 Unit V V V mV mV pF VLOAD Open GND OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL 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 VIH VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V VIN D.U.T. RT VOUT 500 CL 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 10MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 10MHz; tF 2ns; tR 2.5ns. SWITCH POSITION Test tPLZ/tPZL tPHZ/tPZH tPD Switch VLOAD GND Open 4 IDT74CBTLV3384 LOW-VOLTAGE 10-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION XXX XX CBTLV IDT XX Temp. Range Device Type Package PY Q QG PG PGG 3384 Shrink Small Outline Package Quarter-size Small Outline Package QSOP - Green Thin Shrink Small Outline Package TSSOP - Green 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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