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| NC7SB3257 TinyLogic UHS 2:1 Multiplexer/Demultiplexer Bus Switch January 2000 Revised April 2002 NC7SB3257 TinyLogic UHS 2:1 Multiplexer/Demultiplexer Bus Switch General Description The NC7SB3257 is a high performance, 2:1 NMOS passgate multiplexer/demultiplexer from Fairchild's Ultra High Speed Series of TinyLogic. The device is fabricated with advanced sub-micron CMOS technology to achieve high speed enable and disable times and low On Resistance. The device is specified to operate over the 4.0 to 5.5V VCC operating range. The control input tolerates voltages up to 5.5V independent of the VCC operating range. Features s Space saving SC70 6-lead surface mount package s Ultra small MicroPak leadless package s Typical 3 switch resistance @ 5.0V VCC s Minimal propagation delay through the switch s Power down high impedance control input s Zero bounce in flow through mode s TTL compatible control input s Overvoltage tolerance of control input to 7.0V s Break before make enable circuitry Ordering Code: Order Number NC7SB3257P6X NC7SB3257L6X Package Number MAA06A MAC06A Product Code Top Mark B7B B7 Package Description 6-Lead SC70, EIAJ SC88, 1.25mm Wide 6-Lead MicroPak, 1.0mm Wide Supplied As 3k Units on Tape and Reel 5k Units on Tape and Reel TinyLogic and MicroPak are trademarks of Fairchild Semiconductor Corporation. (c) 2002 Fairchild Semiconductor Corporation DS500325 www.fairchildsemi.com NC7SB3257 Logic Symbol Connection Diagrams Pin Assignments for SC70 Pin Descriptions Pin Names A, B0, B1 S Description Data Ports Control Input (Top View) Pin One Orientation Diagram Function Table Input (S) L H H = HIGH Logic Level L = LOW Logic Level AAA = Product Code Top Mark - see ordering code Note: Orientation of Top Mark determines Pin One location. Read the top product code mark left to right, Pin One is the lower left pin (see diagram). Function B0 Connected to A B1 Connected to A Pad Assignments for MicroPak (Top Thru View) www.fairchildsemi.com 2 NC7SB3257 Absolute Maximum Ratings(Note 1) Supply Voltage (VCC) DC Switch Voltage (VS) DC Output Voltage (VIN) DC Input Diode Current (IIK) @ (IIK) VIN < 0V DC Output Current (IOUT) DC VCC or Ground Current (ICC/IGND ) Storage Temperature Range (TSTG) Junction Lead Temperature under Bias (TJ) Lead Temperature (TL) (Soldering, 10 seconds) Power Dissipation (PD) @ +85C -0.5V to +7.0V -0.5V to +7.0V -0.5V to +7.0V -50 mA 128 mA Recommended Operating Conditions (Note 2) Supply Voltage Operating (VCC) Control Input Voltage (VIN ) Switch Input Voltage (VIN) Output Voltage (VOUT) Operating Temperature (TA) Input Rise and Fall Time (tr, tf) Control Input VCC = 4.0V to 5.5V Thermal Resistance (JA) 0 ns/V to 5 ns/V 350C/W 4.0V to 5.5V 0V to VCC 0V to VCC 0V to VCC -40C to +85C 100 mA -65C to +150C +150C +260C 180 mW Note 1: Absolute maximum ratings are DC values beyond which the device may be damaged or have its useful life impaired. The datasheet specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation outside datasheet specifications. Note 2: Control input must be held HIGH or LOW, it must not float. Note 3: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. DC Electrical Characteristics Symbol VIK VIH VIL IIN IOFF RON Parameter Clamp Diode Voltage HIGH Level Input Voltage LOW Level Input Voltage Input Leakage Current OFF State Leakage Current Switch ON Resistance (Note 4) VCC (V) 4.5 4.5 - 5.5 4.5 - 5.5 5.5 5.5 4.5 4.5 4.5 4.0 ICC ICC Quiescent Supply Current Increase in ICC Per Input (Note 5) 5.5 5.5 0.9 3 3 6 10 2.0 0.8 1 1 7 7 15 20 10 2.5 A A A mA 0 VIN 5.5V 0 A, B VCC VIN = 0V, IIN = 64 mA VIN = 0V, IIN = 30 mA VIN = 2.4V, IIN = 15 mA VIN = 2.4V, IIN = 15 mA VIN = VCC or GND IOUT = 0 VIN = 3.4V, IO = 0 Control Input Only Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On Resistance is determined by the lower of the voltages on the two (A or B Ports). Note 5: Per TTL driven Input (VIN = 3.4V, Control input only). A and B pins do not contribute to ICC. TA = -40C to +85C Min Typ Max -1.2 Units V V IIN = -18 mA Conditions 3 www.fairchildsemi.com NC7SB3257 AC Electrical Characteristics TA = -40C to +85C Symbol Parameter VCC (V) tPHL tPLH tPZL tPZH tPLZ tPHZ tB-M Break Before Make Time (Note 7) Output Disable Time Propagation Delay Bus to Bus (Note 6) Output Enable Time 4.5 - 5.5 4.0 4.5 - 5.5 4.0 4.5 - 5.5 4.0 1.8 1.8 0.8 0.8 0.5 0.5 6.5 7.3 4.7 5.3 ns 4.0 - 55 CL = 50 pF, RU = RD =500 Min Typ Max 0.25 ns ns VI = OPEN VI = 7V for tPZL VI = 0V for tPZH VI = 7V for tPLZ VI = 0V for tPHZ Units Conditions Figure Number Figures 1, 2 Figures 1, 2 Figures 1, 2 Figure 3 Note 6: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On Resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance). Note 7: Guaranteed by design. Capacitance Symbol CIN CIO-B CIO-A (Note 8) Parameter Typ 2.3 5.7 16 Max Units pF pF pF Conditions VCC = 0V VCC = 5.0V VCC = 5.0V Control Pin Input Capacitance B Port OFF Capacitance A Port ON Capacitance Note 8: Capacitance is characterized but not tested. www.fairchildsemi.com 4 NC7SB3257 AC Loading and Waveforms Note: Input Driven by 50 source terminated in 50 Note: CL includes load and stray capacitance Note: Input PRR = 1.0 MHz; tW = 500 ns FIGURE 1. AC Test Circuit Input = AC Waveform; PRR = Variable; Duty Cycle = 50% FIGURE 2. AC Waveforms FIGURE 3. Break Before Make Interval Timing 5 www.fairchildsemi.com NC7SB3257 Tape and Reel Specification TAPE FORMAT for SC70 Package Designator P6X Tape Section Leader (Start End) Carrier Trailer (Hub End) TAPE DIMENSIONS inches (millimeters) Number Cavities 125 (typ) 3000 75 (typ) Cavity Status Empty Filled Empty Cover Tape Status Sealed Sealed Sealed Package SC70-6 Tape Size 8 mm DIM A 0.093 (2.35) DIM B 0.096 (2.45) DIM F (3.5 0.10) DIM Ko (1.35 0.10) DIM P1 0.157 (4) DIM W 0.315 0.004 (8 0.1) 0.138 0.004 0.053 0.004 www.fairchildsemi.com 6 NC7SB3257 Tape and Reel Specification TAPE FORMAT for MicroPak Package Designator L6X Tape Section Leader (Start End) Carrier Trailer (Hub End) (Continued) Number Cavities 125 (typ) 5000 75 (typ) Cavity Status Empty Filled Empty Cover Tape Status Sealed Sealed Sealed REEL DIMENSIONS inches (millimeters) Tape Size 8 mm A 7.0 (177.8) B 0.059 (1.50) C 0.512 (13.00) D 0.795 (20.20) N 2.165 (55.00) W1 0.331 + 0.059/-0.000 (8.40 + 1.50/-0.00) W2 0.567 (14.40) W3 W1 + 0.078/-0.039 (W1 + 2.00/-1.00) 7 www.fairchildsemi.com NC7SB3257 Physical Dimensions inches (millimeters) unless otherwise noted 6-Lead SC70, EIAJ SC88, 1.25mm Wide Package Number MAA06A www.fairchildsemi.com 8 NC7SB3257 TinyLogic UHS 2:1 Multiplexer/Demultiplexer Bus Switch Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 6-Lead MicroPak, 1.0mm Wide Package Number MAC06A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 9 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com www.fairchildsemi.com |
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