IDT74CBTLV16210 LOW-VOLTAGE 20-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE LOW-VOLTAGE 20-BIT BUS SWITCH FEATURES: IDT74CBTLV16210 DESCRIPTION: 5Ω Ω 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 SSOP, TSSOP, and TVSOP packages • • • • • • The CBTLV16210 operates as a single 20-bit bus switch or as a dual 10-bit bus switch,which provides high-speed switching. This device has very low ON resistance, resulting in under 250ps propagation delay through the switch. When Output Enable (OE) is low, the corresponding 10-bit bus switch is on and port A is connected to Port B. When OE is high, the switch is off and a high impedance exists between Port A and Port B. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor. APPLICATIONS: • 3.3V High Speed Bus Switching and Bus Isolation FUNCTIONAL BLOCK DIAGRAM 2 SW 1A1 1A10 12 SW 46 36 SIMPLIFIED SCHEMATIC, EACH SWITCH 1B1 1B10 A B 48 1OE 2A1 13 SW 35 2B1 OE 2A10 24 SW 25 2B10 47 2OE The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE AUGUST 2002 1 c 2002 Integrated Device Technology, Inc. DSC-5887/4 IDT74CBTLV16210 LOW-VOLTAGE 20-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS(1) Symbol VCC NC 1 48 1OE 1A1 2 47 2OE 1A2 3 46 1B1 1A3 4 45 1B2 1A4 5 44 1B3 1A5 6 43 1B4 1A6 7 42 GND 8 41 1B5 GND 1A7 9 40 1B6 1A8 10 39 1B7 1A9 11 38 1B8 1A10 12 37 1B9 2A1 13 36 1B10 Pin Names VI IIK TSTG Description Max. Unit Supply Voltage Range –0.5 to 4.6 V Input Voltage Range –0.5 to 4.6 V Continuous Channel Current 128 mA Input Clamp Current, VI/O < 0 –50 mA –65 to +150 °C Storage Temperature Range 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. PIN DESCRIPTION 2A2 14 35 2B1 VCC 15 34 2B2 xOE Output Enable (Active LOW) Port A Inputs or Outputs Port B Inputs or Outputs 2A3 16 33 2B3 xAx GND 17 32 GND xBx 2A4 18 31 2B4 2A5 19 30 2B5 2A6 20 29 2B6 2A7 21 28 2B7 2A8 22 27 2B8 2A9 23 26 2B9 2A10 24 25 2B10 Description FUNCTION TABLE(1) Input OE Operation L A-Port = B-Port H Disconnect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level SSOP/ TSSOP/ TVSOP TOP VIEW OPERATING CHARACTERISTICS(1) Symbol Parameter VCC Supply Voltage VIH High-Level Control Input Voltage VIL Low-Level Control Input Voltage TA Operating Free-Air Temperature 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 NOTE: 1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. 2 — 0.8 –40 +85 V °C IDT74CBTLV16210 LOW-VOLTAGE 20-BIT 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 Symbol Typ.(1) Max. — — –1.2 V — — ±1 µA — — 5 µA VCC = 0V, VI or VO = 0V or 3.6V — — 10 µA VCC = 3.6V, IO = 0, VI = VCC or GND — — 10 µA Parameter Test Conditions Control Inputs, Data I/O VCC = 3V, II = –18mA Control Inputs VCC = 3.6V, VI = VCC or GND Data I/O VCC = 3.6V, VO = 0V or 3.6V switch disabled IOFF ICC VIK II I OZ Min. Unit ∆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 = VCC — 6.5 — pF IO = 64mA — 5 8 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 CIO(OFF) Max. at VCC = 2.3V VI = 0 Typ. at VCC = 2.5V RON(3) 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. 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 6.8 1 6 ns 1 7.3 1 7.4 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 when driven by an ideal voltage source (zero output impededance). 3 IDT74CBTLV16210 LOW-VOLTAGE 20-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VCC(1)= 3.3V±0.3V VCC(2)= 2.5V±0.2V Unit VLOAD 2 x Vcc 2 x Vcc V VIH 3 Vcc V VT 1.5 Vcc / 2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF SAME PHASE INPUT TRANSITION tPLH tPHL tPLH tPHL OUTPUT VIH VT 0V VOH VT VOL VIH VT 0V OPPOSITE PHASE INPUT TRANSITION Propagation Delay VLOAD VCC 500Ω Pulse(1, 2) Generator VIN CONTROL INPUT GND tPZL VOUT D.U.T. RT DISABLE ENABLE Open OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500Ω CL Test Circuits for All Outputs SWITCH POSITION Switch VLOAD tPHZ/tPZH GND tPD Open tPHZ VT 0V Enable and Disable Times 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 VLOAD/2 VT VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. tPLZ/tPZL tPLZ VIH VT 0V 4 IDT74CBTLV16210 LOW-VOLTAGE 20-BIT BUS SWITCH INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION XXX XX CBTLV IDT XX Temp. Range Device Type Package CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 PV PA PF Shrink Small Outline Package Thin Shrink Small Outline Package Thin Very Small Outline Package 16210 Low-Voltage 20-Bit Bus Switch 74 –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