Revised December 2005 NC7SB3257 2:1 Multiplexer/Demultiplexer Bus Switch General Description The NC7SB3257 is a high performance, 2:1 NMOS passgate multiplexer/demultiplexer. 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 O Space saving SC70 6-lead surface mount package O Ultra small MicroPak¥ leadless package O Typical 3: switch resistance @ 5.0V VCC O Minimal propagation delay through the switch O Power down high impedance control input O Zero bounce in flow through mode O TTL compatible control input O Overvoltage tolerance of control input to 7.0V O Break before make enable circuitry Ordering Code: Order Number Package Number Product Code Top Mark NC7SB3257P6X MAA06A B7B NC7SB3257L6X MAC06A B7 Package Description Supplied As 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3k Units on Tape and Reel Pb-Free 6-Lead MicroPak, 1.0mm Wide 5k Units on Tape and Reel Pb-Free package per JEDEC J-STD-020B. MicroPak¥ is a trademark of Fairchild Semiconductor Corporation. © 2005 Fairchild Semiconductor Corporation DS500325 www.fairchildsemi.com NC7SB3257 2:1 Multiplexer/Demultiplexer Bus Switch January 2000 NC7SB3257 Logic Symbol Connection Diagrams Pin Assignments for SC70 Pin Descriptions (Top View) Pin Names Description A, B0, B1 Data Ports S Control Input Pin One Orientation Diagram Function Table Input (S) Function L B0 Connected to A H B1 Connected to A 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). H HIGH Logic Level L LOW Logic Level Pad Assignments for MicroPak (Top Through View) www.fairchildsemi.com 2 0.5V to 7.0V 0.5V to 7.0V 0.5V to 7.0V Supply Voltage (VCC) DC Switch Voltage (VS) DC Output Voltage (VIN) (Note 3) DC Input Diode Current (IIK) @ (IIK) VIN 0V DC Output Current (IOUT) Recommended Operating Conditions (Note 2) Supply Voltage Operating (VCC) 50 mA Storage Temperature Range (TSTG) Junction Lead Temperature under Bias (TJ) Power Dissipation (PD) @ 85qC 0V to VCC 40qC to 85qC Input Rise and Fall Time (tr, tf) Control Input VCC 4.0V to 5.5V 0 ns/V to 5 ns/V Thermal Resistance (TJA) 260qC (Soldering, 10 seconds) 0V to VCC Operating Temperature (TA) r100 mA 65qC to 150qC 150qC Lead Temperature (TL) 0V to VCC Switch Input Voltage (VIN) Output Voltage (VOUT) 128 mA DC VCC or Ground Current (ICC/IGND) 4.0V to 5.5V Control Input Voltage (VIN) 350qC/W 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. 180 mW 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 Parameter VCC (V) VIK Clamp Diode Voltage VIH HIGH Level Input Voltage VIL LOW Level Input Voltage TA Min 40qC to 85qC Typ 4.5 5.5 Units 2.0 r1.0 r1.0 10.0 PA PA : : : : PA 2.5 mA IIN Input Leakage Current 5.5 OFF State Leakage Current 5.5 RON Switch On Resistance (Note 4) 4.5 3.0 7.0 4.5 3.0 7.0 4.5 6.0 15.0 4.0 10.0 20.0 5.5 'ICC Increase in ICC Per Input (Note 5) 5.5 IIN 18 mA 0.8 IOFF Quiescent Supply Current V V 4.5 5.5 ICC Conditions Max 1.2 4.5 0 d VIN d 5.5V 0 d A, B d 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 0.9 VIN 0 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. 3 www.fairchildsemi.com NC7SB3257 Absolute Maximum Ratings(Note 1) NC7SB3257 AC Electrical Characteristics TA Symbol Parameter tPHL Propagation Delay Bus to Bus tPLH (Note 6) tPZL Output Enable Time tPZH tPLZ Output Disable Time tPHZ tB-M Break Before Make Time (Note 7) VCC CL (V) Min 40qC to 85qC 50 pF, RU RD 500: Typ Units Conditions Figure Max 4.0 55 Number 0.25 4.5 5.5 1.8 6.5 4.0 1.8 7.3 4.5 5.5 0.8 4.0 0.8 4.5 5.5 0.5 4.0 0.5 ns VI OPEN Figures 1, 2 Figures 1, 2 VI 7V for tPZL VI 0V for tPZH 4.7 VI 7V for tPLZ 5.3 VI 0V for tPHZ ns Figures 1, 2 ns 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 (Note 8) Symbol Parameter Typ Max Units Conditions CIN Control Pin Input Capacitance 2.3 pF CIO-B B Port OFF Capacitance 5.7 pF VCC 5.0V CIO-A A Port ON Capacitance 16.0 pF VCC 5.0V Note 8: Capacitance is characterized but not tested. www.fairchildsemi.com 4 VCC 0V 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 Tape Section Number Cavities Cavity Status Cover Tape Status Leader (Start End) 125 (typ) Empty Sealed Carrier 3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed P6X TAPE DIMENSIONS inches (millimeters) Package SC70-6 www.fairchildsemi.com Tape Size 8 mm DIM A DIM B DIM F 0.093 0.096 0.138 r 0.004 (2.35) (2.45) (3.5 r 0.10) 6 DIM Ko 0.053 r 0.004 (1.35 r 0.10) DIM P1 DIM W 0.157 0.315 r 0.004 (4) (8 r 0.1) Package Designator Tape Section Number Cavities Cavity Status Leader (Start End) 125 (typ) Empty Sealed Carrier 5000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed L6X Cover Tape Status REEL DIMENSIONS inches (millimeters) Tape Size 8 mm A B C D N 7.0 0.059 0.512 0.795 2.165 (177.8) (1.50) (13.00) (20.20) (55.00) 7 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) www.fairchildsemi.com NC7SB3257 TAPE FORMAT for MicroPak NC7SB3257 Physical Dimensions inches (millimeters) unless otherwise noted 6-Lead SC70, EIAJ SC88, 1.25mm Wide Package Number MAA06A www.fairchildsemi.com 8 NC7SB3257 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Pb-Free 6-Lead MicroPak, 1.0mm Wide Package Number MAC06A 9 www.fairchildsemi.com NC7SB3257 2:1 Multiplexer/Demultiplexer Bus Switch DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. 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 FAIRCHILD SEMICONDUCTOR CORPORATION As used herein: provided in the labeling, can be reasonably expected to result in significant injury to the user. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or 2. A critical component is any component of a life support (b) support or sustain life, or (c) whose failure to perform device or system whose failure to perform can be reasonwhen properly used in accordance with instructions for use ably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. PRODUCT STATUS DEFINITIONS Definition of terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only. www.fairchildsemi.com 10