IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE LOW-VOLTAGE QUADRUPLE BUS SWITCH IDT74CBTLV3126 FEATURES DESCRIPTION: − − − − − − − The CBTLV3126 features four independent switches. Each switch is enabled when the associated output-enable (OE) input is high. − − Pin-Out Compatible with Standard ‘126 Logic Products 5Ω 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) Output Enable, Active High Available in TSSOP and QSOP packages 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. APPLICATIONS: − 3.3V High Speed Bus Switching and Bus Isolation SIMPLIFIED SCHEMATIC, EACH SWITCH FUNCTIONAL BLOCK DIAGRAM 2 1A 3 SW 1OE 1 5 2A 6 SW 2OE 2B B A 4 9 3A 1B 8 SW 3B 10 3OE 11 12 4A SW 4OE OE 4B 4 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 MARCH 2001 1 c 2001 Integrated Device Technology, Inc. DSC-5740/2 IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION NC 1 16 V CC 1OE 2 15 4OE 4A 1A 3 14 4A 11 4B 1B 4 13 4B 5 10 3OE 2OE 5 12 3OE 2B 6 9 3A 2A 6 11 3A GND 7 8 3B 2B 7 10 3B GND 8 9 NC 1OE 1 14 V CC 1A 2 13 4OE 1B 3 12 2OE 4 2A SO14-3 TSSOP TOP VIEW QSOP TOP VIEW ABSOLUTE MAXIMUM RATINGS Symbol VCC FUNCTION TABLE (1) Description Supply Voltage Range Max. –0.5 to 4.6 Unit V 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 VI SO16-7 (1) Input OE Inputs/Outputs H L A Port = B Port Disconnect 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 Symbol VCC Supply Voltage VIH High-Level Control Input Voltage VIL TA Parameter Low-Level Control Input Voltage Test Conditions Min. 2.3 Max. 3.6 VCC = 2.3V to 2.7V 1.7 — 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 operation of the device. 2 Unit V V V °C IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = – 40°C to +85°C Min. — Typ. (1) — Max. – 1.2 Unit V VCC = 3.6V, VI = VCC or GND — — ±1 µA VCC = 3.6V, VO = 0 or 3.6V, switch disabled — — 5 µA IOFF VCC = 0, VI or VO = 0 to 3.6V — — 50 µA ICC VCC = 3.6V, IO = 0, VI = VCC or GND — — 10 µA Symbol VIK Parameter Control Inputs, Data I/O Test Conditions VCC = 3V, II = −18mA II Control Inputs, Data I/O IOZ Data I/O ∆ICC (2) Control Inputs VCC = 3.6V, One input at 3V, Other inputs at VCC or GND — — 300 µA CI Control Inputs VI = 3V or 0 — 4 — pF VO = 3V or 0, OE = GND — 6 — pF — 5 8 CIO(OFF) Max at VCC = 2.3V VI = 0 IO = 64mA Typ at VCC = 2.5V RON (3) IO = 24ma — 5 8 VI = 1.7V IO = 15mA — 27 40 VI = 0 IO = 64mA — 5 7 IO = 24mA — 5 7 IO = 15mA — 10 15 VCC = 3V VI = 2.4V Ω NOTES: 1. Typical values are at 3.3V, +25°C ambient. 2. The increase in supply current is attributable to each input 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) tEN tDIS Parameter Propagation Delay A to B or B to A Output Enable Time OE to A or B Output Disable Time OE to A or B VCC = 3.3V ± 0.3V Min. − Max. 0.15 Min. − Max. 0.25 Unit ns 1 4.5 1 4.2 ns 1 4.7 1 4.8 ns NOTE: 1. The propagation time is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance when driven by an ideal voltage source (zero output impedance). 3 IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS PROPAGATION DELAY TEST CONDITIONS Symbol VLOAD VCC(1)= 3.3V ± 0.3V 6 VCC(2)= 2.5V ± 0.2V 2 x Vcc Unit V VIH 3 Vcc V VT 1.5 VCC/2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 SAME PHASE INPUT TRANSITION pF VIH VT 0V DISABLE ENABLE 500 Ω CONTROL INPUT GND tPZL VOUT D.U.T. RT tPHL OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500Ω CL DEFINITIONS: 1. CL = Load capacitance: includes jig and probe capacitance. 2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. SWITCH POSITION Switch VLOAD tPHZ/tPZH GND tPD Open tPLZ VIH VT 0V VLOAD/2 VLOAD/2 VT VOL + VLZ VOL tPHZ VT VOH VOH -VHZ 0V 0V NOTE: 1. Diagram shown for input control Enable-LOW and input Control Disable-HIGH. 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 ≤ 2ns. Test tPLZ/tPZL VOH VT VOL ENABLE AND DISABLE TIMES Open Pulse Generator tPLH VLOAD VCC VIN tPHL OPPOSITE PHASE INPUT TRANSITION TEST CIRCUITS FOR ALL OUTPUTS (1, 2) tPLH OUTPUT VIH VT 0V 4 IDT74CBTLV3126 LOW-VOLTAGE QUADRUPLE BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT XX Tem p. R ange CBTLV XXXX Device Type X Package PG Q Thin Shrink Small Outline Package (SO14-3) Quarter Small Outline Package (SO16-7) 3126 Low-Voltage Quadruple Bus Switch 74 CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 -40°C to +85°C for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 5 for Tech Support: [email protected] (408) 654-6459