IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE LOW-VOLTAGE QUADRUPLE BUS SWITCH IDT74CBTLV3126 FEATURES: APPLICATIONS: • • • • • • • Pin-out compatible with standard '126 Logic products Ω A/B bi-directional switch 5Ω 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) • Output enable, active high • Available in QSOP and TSSOP packages • 3.3V High Speed Bus Switching and Bus Isolation FUNCTIONAL BLOCK DIAGRAM SIMPLIFIED SCHEMATIC, EACH SWITCH 1A 2 1OE 1 2A 3 SW 5 6 SW DESCRIPTION: The CBTLV3126 features four independent switches. Each switch is enabled when the associated output-enable (OE) input is high. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. 1B 2B B A 2OE 4 3A 9 3OE 10 4A 12 4OE 13 8 SW 11 SW 3B OE 4B NOTE: 1. Pin numbers shown apply to the 14-pin TSSOP package. The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE JULY 2008 1 © 2008 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. DSC-5740/6 IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION 1OE 1 14 VCC 1A 2 13 4OE 1B 3 12 4A 2OE 4 11 4B 2A 5 10 3OE 2B 6 9 3A GND 7 8 3B NC 1 16 VCC 1OE 2 15 4OE 1A 3 14 4A 1B 4 13 4B 2OE 5 12 3OE 2A 6 11 3A 2B 7 10 3B GND 8 9 NC TSSOP TOP VIEW QSOP TOP VIEW ABSOLUTE MAXIMUM RATINGS(1) Symbol Description FUNCTION TABLE(1) Max Unit Input OE Inputs/Outputs H A Port = B Port L Disconnect VCC SupplyVoltage Range –0.5 to +4.6 V VI Input Voltage Range –0.5 to +4.6 V Continuous Channel Current 128 mA IIK Input Clamp Current, VI/O < 0 –50 mA TSTG Storage Temperature –65 to +150 °C NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level 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. OPERATING CHARACTERISTICS, TA = 25°C(1) Symbol Parameter VCC Supply Voltage VIH High-Level Control Input Voltage VIL TA Low-Level Control Input Voltage Test Conditions Min. Max. Unit 2.3 3.6 V VCC = 2.3V to 2.7V 1.7 — V VCC = 2.7V to 3.6V 2 — VCC = 2.3V to 2.7V — 0.7 VCC = 2.7V to 3.6V — 0.8 −40 85 Operating Free-Air Temperature NOTE: 1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. 2 V °C IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Conditions: TA = –40°C to +85°C Min. Typ.(1) Max. Unit VCC = 3V, II = –18mA — — –1.2 V Control Inputs VCC = 3.6V, VI = VCC or GND — — ±1 µA Data I/O VCC = 3.6V, VO = 0 or 3.6V, switch disabled — — 5 µA VCC = 0, VI or VO = 0 to 3.6V — — 50 µA Symbol VIK II IOZ Parameter Control Inputs, Data Inputs IOFF ICC ∆ICC(2) Control Inputs CI Control Inputs CIO(OFF) VCC = 2.3V Typ. at VCC = 2.5V RON(3) Test Conditions VCC = 3.6V, IO = 0, VI = VCC or GND — — 10 µA VCC = 3.6V, one input at 3V, other inputs at VCC or GND — — 300 µA VI = 3V or 0 — 4 — pF VO = 3V or 0, OE = VCC VI = 0 — — — — — — — 6 5 5 27 5 5 10 — 8 8 40 7 7 15 pF IO = 64mA IO = 24mA IO = 15mA IO = 64mA IO = 24mA IO = 15mA VI = 1.7V VI = 0 VCC = 3V VI = 2.4V Ω NOTES: 1. Typical values are at VCC = 3.3V, +25°C 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. 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) Parameter Propagation Delay VCC = 3.3V ± 0.3V Min. Max. Min. Max. Unit − 0.15 − 0.25 ns 1 4.5 1 4.2 ns 1 4.7 1 4.8 ns A to B or B to A tEN Output Enable Time OE to A or B tDIS 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). 3 IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS SAME PHASE INPUT TRANSITION TEST CONDITIONS Symbol VCC = 2.5V±0.2V Unit VLOAD 6 2 x Vcc V VIH 3 Vcc V VT 1.5 Vcc / 2 V (2) VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF 500Ω VIN tPHL VIH VT 0V DISABLE ENABLE CONTROL INPUT GND tPZL VOUT D.U.T. RT tPLH Propagation Delay Open (1, 2) tPHL OPPOSITE PHASE INPUT TRANSITION VLOAD VCC Pulse Generator tPLH OUTPUT VCC(1)= 3.3V±0.3V OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500Ω CL tPLZ VLOAD/2 VT tPHZ VT 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 ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns. 2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2.5ns. SWITCH POSITION Test Switch tPLZ/tPZL VLOAD tPHZ/tPZH GND tPD Open VIH VT 0V VOH VT VOL 4 VIH VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT XX CBTLV Temp. Range XXXX Device Type X Package PG PGG Q QG Thin Shrink Small Outline Package TSSOP - Green Quarter Small Outline Package QSOP - Green 3126 Low-Voltage Quadruple Bus Switch 74 -40°C to +85°C DATASHEET DOCUMENT HISTORY 07/14/2008 pg. 1. 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: [email protected]